87,959 →
round to nearest hundred
pls help help needed rn asap​

Answer:

JLK = PRQ

Step-by-step explanation:

We already know that JL = QR and KL = PR.

If we know the angle between the two sides is equal or if the other side lengths are equal, then that would prove the two triangles to be equal.

Since the option for the two other side lengths (JK = PQ) to be equal is not listed, then the option that shows the angles are equal is the correct answer.

Since both JKL and PRQ are between the line segments already said to be equal, the answer is JLK = PRQ

Answer:

C. This would be a true statement due to the fact the to sides touch are equal. The sides are going to come at the same angle giving you a SAS which is possible to show for congruent triangles.

The values of x and y are 9√3 and 9. Thus, option C is the answer.

From the figure, we know that angle A = 60°, angle C = 30° and side AC =18 units.

We have to use trigonometric ratios to find the values of x and y.

sin30° = Opposite side/Hypotenuse  

But, we also know that sin30° = 1/2

Substituting the value in the above equation, we get

1/2 = y/18

Thus, the value of y = 18/2 = 9.

Now, sin60° = Opposite Side/ Hypotenuse

sin60° = √3/2

Substituting the value, we get

√3/2 = x/18

Thus, x = 9√3.

Therefore, the values of x and y in the given triangle are 9√3 and 9.

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Answer:

[tex]\frac{1}{72}[/tex]

Step-by-step explanation:

[tex]2^{-3}\cdot 3^{-2}=\frac{1}{2^3}\cdot\frac{1}{3^2}=\frac{1}{8}\cdot\frac{1}{9}=\frac{1}{72}[/tex]

The correct answer is option (a): Var(X) = E(X^2) - (E(X))^2.

The variance of a random variable X is defined as the average of the squared differences between each value of X and its expected value (E(X)). Mathematically, it can be expressed as Var(X) = E((X - E(X))^2).

Expanding the squared term, we have Var(X) = E(X^2 - 2XE(X) + (E(X))^2). Distributing and rearranging, we get Var(X) = E(X^2) - 2E(X)E(X) + (E(X))^2. Simplifying, we obtain Var(X) = E(X^2) - (E(X))^2.

Triangle 1 and Triangle 2 are not similar triangles.

To determine if two triangles are similar, we need to compare their corresponding sides and angles. In this case, we have Triangle 1 with vertices (10, 3) and (32, 10), and Triangle 2 with vertices (10, 3) and (25, 10). Let's compare the corresponding sides and angles:

1. Side lengths:

The length of side AB in Triangle 1 is [tex]√[(32 - 10)^2 + (10 - 3)^2] = √[22^2 + 7^2] = √(484 + 49) = √533.[/tex]

The length of side AB in Triangle 2 is [tex]√[(25 - 10)^2 + (10 - 3)^2] = √[15^2 + 7^2] = √(225 + 49) = √274.[/tex]

2. Angle measurements:

To compare the angle measurements, we need to find the slopes of the sides of the triangles.

The slope of side AB in Triangle 1 is (10 - 3)/(32 - 10) = 7/22.

The slope of side AB in Triangle 2 is (10 - 3)/(25 - 10) = 7/15.

Based on the side lengths and angle measurements, we can see that the side lengths are different and the slopes of the sides are different. Therefore, Triangle 1 and Triangle 2 are not similar triangles.

Similar triangles have corresponding sides that are proportional in length and corresponding angles that are congruent. In this case, the side lengths and angles of Triangle 1 and Triangle 2 are not proportional or congruent, indicating that the triangles are not similar.

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The solution for "r" is 21/24, which can be simplified to 7/8. The answer can be written as a fraction of 7/8.

To solve for "r" in the given equation, we can use algebraic manipulation.

First, we can multiply both sides of the equation by the reciprocal of 6/7, which is:

7/6: 6/7 · r = 3/4  

7/6 · 6/7 · r = 7/6 · 3/4

r = 21/24.

Thus, the solution for "r" is 21/24, which can be simplified to 7/8.

Therefore, the answer can be written as a fraction of 7/8.

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The first mechanic worked for 12 hours, and the second mechanic worked for 8 hours.

Let's assume the first mechanic worked for x hours. Since the first mechanic charged $75 per hour, their earnings can be represented as 75x dollars.

Similarly, the second mechanic worked for (20 - x) hours, and at a rate of $95 per hour, their earnings can be represented as 95(20 - x) dollars.

According to the problem, the combined earnings of both mechanics are $1800. Therefore, we can write the equation:

75x + 95(20 - x) = 1800

Simplifying this equation, we get:

75x + 1900 - 95x = 1800

-20x = -100

x = 5

Substituting x back into the equation, we find that the first mechanic worked for 5 hours, and the second mechanic worked for (20 - 5) = 15 hours.

Therefore, the first mechanic worked for 5 hours, and the second mechanic worked for 15 hours.

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The main answer is that the confidence intervals for the population proportion of subjects with syncope or near syncope who also have cardiovascular disease, at 90%, 95%, and 99% confidence levels, are as follows:

90% Confidence Interval: Approximately 51.84% to 70.53%

95% Confidence Interval: Approximately 49.77% to 72.60%

99% Confidence Interval: Approximately 46.48% to 76.89%

In the study, out of the 136 subjects with syncope or near syncope, 75 reported having cardiovascular disease.

To construct the confidence intervals, we can use the formula for a proportion's confidence interval. The formula is based on the normal distribution assumption when sample size is large enough, which is satisfied here.

By plugging in the sample proportion (75/136) and the appropriate critical values based on the desired confidence level (1.645 for 90%, 1.96 for 95%, and 2.576 for 99%), we can calculate the lower and upper bounds for each confidence interval.

These confidence intervals provide an estimate of the likely range within which the true population proportion lies.

For example, with 95% confidence, we can say that we are 95% confident that the true proportion of subjects with syncope or near syncope who also have cardiovascular disease falls between approximately 49.77% and 72.60%.

The wider the confidence interval, the lower the precision of the estimate, but the higher the level of confidence.

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The function f(x) and the inverse function h(x) for which the function f(x) is defined by the values (0,3), (1,1), (2,-1) are f(x) = 3 -2x and h(x) = [tex]\frac{3 - x}{2}[/tex]

A function is a rule which takes each member x of a set and assigns, or maps it to the same value y known at its image.x → Function → yA letter such as f, g or h is often used to stand for a function.

The Function which squares a number and adds on a 3, can be written as f(x) = x2+ 5.

Let the linear function be f(x) = mx + cwhen x = 0, f(x) = 33 = m(0) + cTherefore, c = 3

when x = 1, f(x) = 11 = m(1) + c but c = 31 = m + 3

Therefore m = 1 - 3, which is -2

The linear equation f(x) = 3 - 2x

To solve for inverse function h(x)let y = 3 - 2xmaking x the subject of the equation2x = 3 - yx =[tex]\frac{3 - y}{2}[/tex]replacing x with h(x) and y with x, we haveh(x) = [tex]\frac{3 - x}{2}[/tex]

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Answer:

35

Step-by-step explanation:

You can easily graph this in desmos for a visual understanding.

The slope of a line is received by (y2-y1)/(x2-x1). Assuming that Days is X and the cost is Y, we get (160-90)/(4-2), and it makes 70/2, which equates out to 35. Because the prices become more and more expensive, the slope is positive 35.

The area of the label needed to cover the box is 96 square inches. None of the provided answer options (98 in², 48 in², 40 in², or 20 in²) match the calculated area of 96 in².

We must determine the area of the rectangle formed by the provided vertices in order to determine the size of the label required to completely cover the front face of the rectangular box.

Let's label the vertices as follows:

A = (-5, 8)

B = (3, 8)

C = (-5, -4)

D = (3, -4)

The formula to calculate the area of a rectangle given the coordinates of its vertices is:

Area = |(x2 - x1) * (y2 - y1)|

Using the given coordinates, we can calculate the area:

Area = |(3 - (-5)) * (8 - (-4))|

Simplifying the expression:

Area = |(3 + 5) * (8 + 4)|

Area = |8 * 12|

Area = 96 square units

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The line that intersects two of the planes is : Line X

The line that intersects one of the planes is : Line Z

The line that that has points on three of the planes shown is Line Y

From this figure you can see that there are 3 different levels and 3 different lines. One line intersects two planes (line X), another line intersects only one plane (line Z). Line Y, on the other hand, has points in all three planes.

A line y has points A and B in all three planes.

A plane is simply a plane that can be intersected by a straight line connecting any two points on the plane.

Therefore, we can conclude from the figure

A line that intersects two planes is: line x

A line that intersects one of the planes is: line Z

A line with points on the three planes shown is Line Y. 

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Answer:

What is the base, height? Is it a right triangle?

The density of lead is 11.3 kg/m³.

The density of lead can be calculated by using the formula D = M/V, where D represents density, M represents mass and V represents volume. The density of lead is the ratio of the mass of lead to the volume occupied by it.

Density of Lead:

Given that the lead has a mass of 3.390 kg and occupies a volume of 0.3 m³.

Density of Lead (D) = Mass of Lead (M) / Volume of Lead (V)D = 3.390 kg / 0.3 m³D = 11.3 kg/m³

Therefore, the density of lead is 11.3 kg/m³.

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Solution

verified

Verified by Toppr

The circumference of circle is 2πr=176

2×

7

22

×r=176

r=176×

22

7

2

1

r=7×4=28cm

Area of circle is πr

2

=

7

22

×28×28=88×28=2464cm

2

With 4 triangles, you can create a total of 3 pattern block rhombuses, depending on their arrangement.

To determine the number of pattern block rhombuses that can be created using 4 triangles, let's start by understanding the properties and arrangement of these shapes.

Pattern block rhombuses are a type of geometric shape commonly used in mathematics education. Each rhombus is made up of 2 triangles, specifically two congruent (equal) acute triangles. The triangles are placed together in a specific way to form the rhombus shape.

When 4 triangles are used, they can be arranged in different configurations to create different numbers of pattern block rhombuses. Let's explore the possibilities:

Arrangement 1:

In this arrangement, you can create 2 pattern block rhombuses. The triangles are placed side by side, with two triangles forming one rhombus, and the other two triangles forming another rhombus.

Arrangement 2:

In this arrangement, you can create 1 pattern block rhombus. The triangles are placed on top of each other, forming a larger triangle. Since a pattern block rhombus requires two acute triangles, only one rhombus can be formed in this case.

So, with 4 triangles, you can create a total of 3 pattern block rhombuses, depending on how the triangles are arranged.

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The sixth term of the geometric sequence is 2048.

The given geometric sequence is 2, 8, 32, 128. We can observe that each term is obtained by multiplying the previous term by 4. Therefore, the common ratio (r) of the sequence is 4.

The formula for the nth term (an) of a geometric sequence is given by:

an = a1 * r^(n-1)

where a1 is the first term and r is the common ratio.

For this sequence, a1 = 2 and r = 4. Plugging in these values into the formula, we get:

an = 2 * 4^(n-1)

To find a6, we substitute n = 6 into the formula:

a6 = 2 * 4^(6-1)

  = 2 * 4^5

  = 2 * 1024

  = 2048

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The Probable question may be:
Write an equation for the nth term of the geometric sequence 2, 8, 32, 128,

Then find a6. Round to the nearest tenth if necessary.

a = 5×4 X

a1 = n-1 X

Answer:

80

Step-by-step explanation:

The expression equivalent to -x--xy is 4x(3 + y).

To simplify the expression -x--xy, we can apply the rules of combining like terms and distribute the negative sign.

-x - (-xy)

Removing the double negative:

-x + xy

Factoring out the common factor of x:

x(-1 + y)

Now, let's compare the simplified expression with the given options:

Option 1: 2x - xy

This expression is not equivalent to -x - (-xy) as it includes an additional term of 2x.

Option 2: x(3 - y)

This expression is equivalent to the simplified expression x(-1 + y), as it represents the distribution of x over the terms inside the parentheses.

Option 3: 4x(3 - y)

This expression is not equivalent to -x - (-xy) as it includes the constant term 4.

Option 4: x(3 + y)

This expression is not equivalent to -x - (-xy) as it includes the positive sign before the y term.

Option 5: 4x(3 + y)

This expression is not equivalent to -x - (-xy) as it includes the constant term 4 and the positive sign before the y term.

From the given options, the expression that is equivalent to -x - (-xy) is:

Option 2: x(3 - y).

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Step-by-step explanation:

24-10=14. So the girls are 14 the ratio is 10:14 =5:7

Answer:

m = 5

n = 12

Step-by-step explanation:

The parallel sides of a parallelogram are equal.

m +1 = 6 so m = 6 -1 = 5, and n = 12

Answer:

m = 5 , n = 12

Step-by-step explanation:

the opposite sides of a parallelogram are congruent , then

m + 1 = 6 ( subtract 1 from both sides )

m = 5

and

n = 12

The most likely reason that Sora lists the activities of customers going through self-checkout is to prove the claim that self-checkout is eliminating jobs.

By observing and documenting the activities of customers using self-checkout, Sora may be gathering evidence to support the argument that self-checkout systems are replacing the need for human cashiers and leading to job loss in the retail industry.

By highlighting the tasks that customers can now perform independently, Sora may be emphasizing the efficiency and convenience of self-checkout systems, which can potentially lead to the reduction of cashier positions.

It's important to note that without more context, we cannot definitively determine Sora's exact intentions or motivations. However, based on the given options and the mention of activities related to self-checkout, the claim that self-checkout is eliminating jobs appears to be the most plausible reason for listing the activities of customers going through self-checkout.

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The measure of angle LB is 40°.

To find the measure of angle LB, we can use the fact that the measure of an inscribed angle is half the measure of its intercepted arc.

In this case, we are given that the measure of arc AC is 80°, so we can conclude that the measure of angle LB is half of that.

Since angle LB is an inscribed angle that intercepts arc AC, we can write the equation:

mLB = 1/2 [tex]\times[/tex] mAC

Substituting the given value, we have:

mLB = 1/2 [tex]\times[/tex] 80°

mLB = 40°

Therefore, the measure of angle LB is 40°.

In the context of the corporate logo, angle LB represents a portion of the circular shape of the logo.

By knowing the measure of arc AC, we can determine the measure of angle LB, which helps in accurately representing the logo in terms of angles and proportions.

This information is crucial for design and branding purposes, as it ensures consistency and precision in the presentation of the logo across various media and materials.

Overall, understanding the measures of angles and arcs in the logo design allows for effective communication and replication of the logo's visual elements, ensuring brand recognition and consistency in its representation.

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Answer:

x=3

Step-by-step explanation:

You can get the answer by substituting the value of x in the equations, your aim is to find a number that will make both equations equal zero.

The list of ordered pairs that is a function is Option D.

A math function is a relationship that assigns a unique output value to each input value. It describes how one quantity depends on another.

Functions are commonly represented using mathematical notation, such as f(x), and they play a fundamental role in various areas of mathematics and its applications.

A  function is a relation in which one input (x-value) is assigned to exactly one output (y-value).

Since option D's x-values do not repeat, then it is a function.

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Answer:

--------------------------

Angle G is central angle and angle E is inscribed angle, both with same endpoints.

According to the inscribed angle theorem the inscribed angle is half of the central angle.

Hence the central angle G measures:

The perimeter of PQRS would depend on the lengths of the tangent segments and the lengths of the intercepted arcs. Without specific measurements, we cannot determine the precise perimeter.

To determine the perimeter of quadrilateral PQRS, we need more information about the lengths of the sides or the relationship between the sides and angles. Without specific measurements or additional details, we cannot calculate the exact perimeter of the quadrilateral.

However, we can provide some general information.Since PQ¯ is tangent to circle R at point Q, it is perpendicular to the radius drawn from the center of the circle to point Q. Similarly, PS¯ is tangent to circle R at point S, so it is perpendicular to the radius drawn to point S.

The quadrilateral PQRS is formed by the tangents PQ¯ and PS¯ along with the two arcs intercepted by these tangents on the circle R.

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After solving by formula the second expression is y =  [tex](x^2 + 1)[/tex].

We know that the product of the HCF and LCM of two numbers is equal to the product of the numbers themselves. In this case, we can apply the same principle to expressions:

HCF * LCM = (x + 1) *  [tex](x^3+ x^2 - x - 1)[/tex]

the first number is [tex]x^{2} -1\\[/tex] and  let the second number is y

Therefore, we can set up the equation:

(x + 1) *  [tex](x^3+ x^2 - x - 1)[/tex] =  [tex]x^{2} -1\\[/tex]  * y

[tex]x^4 + x^3 + x^2 - x^3 - x^2 + x - x - 1 = x^2 - 1 * y[/tex]

Simplifying:

[tex]x^4 - 1 = (x^2 - 1) * y[/tex]

Now, we can divide both sides by [tex](x^2 - 1)[/tex]:

[tex](x^4 - 1) / (x^2 - 1) = y[/tex]

Notice that [tex](x^2 - 1)[/tex]can be factored as (x + 1)(x - 1). Therefore, we can simplify further:

[tex](x^4 - 1) / ((x + 1)(x - 1)) = y[/tex]

The expression [tex](x^4 - 1)[/tex] can be factored using the difference of squares:

[tex](x^4 - 1) = (x^2 + 1)(x^2 - 1)[/tex]

[tex][(x^2 + 1)(x^2 - 1)] / ((x + 1)(x - 1)) = y[/tex]

Now, we can cancel out the common factor  [tex](x^2 - 1)[/tex] from the numerator and denominator:

[tex]y =(x^2 + 1)[/tex]

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We can solve for d = 150 / (tan(34) - tan(12)) Once we have the value of d, we can substitute it back into the equation h = d * tan(12) to find the height h of the smaller building.

To find the height h of the smaller building, we can use trigonometric ratios and the concept of angles of depression.

Let's denote the height of the smaller building as h. We are given that the observer in the larger building measures angles of depression of 12 degrees and 34 degrees to the top and bottom of the smaller building, respectively.

From the given information, we can form a right triangle with the vertical distance between the observer and the smaller building as the opposite side and the horizontal distance between the observer and the smaller building as the adjacent side.

Using trigonometric ratios, we can set up the following equations:

For the angle of depression of 12 degrees:

tan(12) = h / d

For the angle of depression of 34 degrees:

tan(34) = (h + 150) / d

Here, d represents the horizontal distance between the observer and the smaller building.

We can solve these two equations simultaneously to find the values of h and d.

From the equation for the angle of depression of 12 degrees, we can rewrite it as:

h = d * tan(12)

Substituting this expression for h in the equation for the angle of depression of 34 degrees, we get:

tan(34) = (d * tan(12) + 150) / d

Now, we can solve this equation for d. Rearranging the equation, we have:

d * tan(34) = d * tan(12) + 150

Simplifying further:

d * (tan(34) - tan(12)) = 150

Finally, we can solve for d:

d = 150 / (tan(34) - tan(12))

Once we have the value of d, we can substitute it back into the equation h = d * tan(12) to find the height h of the smaller building.

Note: To obtain an actual numerical value for h, we need the precise values of the tangent of 12 degrees and 34 degrees.

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Answer:  See the flowchart proof below.

Explanation:

The given info is indicated by the marked angles. We also use the reflexive property to say that BG = BG. After that we use the ASA (angle side angle) property to prove the triangles are congruent. The triangles are mirrored clones of one another. The mirror line is segment BG.

A flowchart proof that proves that the two triangles are congruent is shown in the image below.

In Mathematics and Geometry, two triangles are said to be similar when the ratio of their corresponding side lengths are equal and their corresponding angles are congruent.

In this context, we can prove that triangle BIG is congruent with triangle BAG by completing the two-column proof shown above with the following reasons:

Statements                                Reasons

∠IBG ≅ ∠ABG                              Given

∠IGB ≅ ∠AGB                              Given

BG ≅ BG                               Reflexive property

ΔBIG ≅ ΔBAG                       ASA Congruence

Based on the angle, side, angle (ASA) similarity theorem, we can logically deduce that triangle BIG and triangle BAG are both congruent.

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