Can someone help me please

Can Someone Help Me Please

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Answer 1

The next correct step of the following elimination method is (C) subtract to eliminate 'x'

What is the elimination method?The elimination method involves taking one variable out of the system of linear equations by using addition or subtraction along with multiplication or division of the variable coefficients. The problem is reduced to solving a single variable equation using the elimination method. Finding the values of x and y without changing the equations is fairly challenging. The x s cancel out and the x is removed from the equations when they are added together. As a result, it is known as the "elimination method."

So, the next correct step of the elimination method:

We can see that in both equations, '-3x' is the same and this means we will cancel the x variable.

Then, option (A) and option (D) is incorrect.

We know that (+ -) is always (-) but (- -) is always (+).And we need to make if -3x and +3x to cancel the 'x' variable.

Thus, the correct option will be an option (C).

Therefore, the next correct step of the following elimination method is (C) subtract to eliminate 'x'

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Can Someone Help Me Please

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Please help 20 points

I don't understand how I'm supposed to solve this I divided both sides and then multiplied but it says my answer is wrong

My teacher said to put 1 under 12

Answers

Answer: 16

Step-by-step explanation: Solve for x

by simplifying both sides of the equation, then isolating the variable.

Answer:

x= 1/3

Step-by-step explanation:

1. Combine multiplied terms into a single fraction

2. Multiply all terms by the same value to eliminate fraction denominators

3. Cancel multiplied terms that are in the denominator

4. Divide both sides by the same factor

5. Simplify

Someone please do this. due soon!! 30 points given as well as marked brainliest!!

Answers

All answers based on the Angles Properties.

Given,

From the figure,

Point P is on the bisector of ∠ABC

Fill the table in the given question.

Now, According to the question:

Statement                                                Reason

1. BP is the bisector                                     Given

2.  ∠ABP ≅ ∠CBP                            The definition of angular bisector

3. ∠BXP and ∠BYP are                                Given

     right angles.

4.  m ∠BXP ≅ m ∠BYP                         All right angles are congruent

5.   BP ≅ BP                                                 Reflexive Property

6. ΔBXP ≅ ΔBYP                                                 AAS

7.  PX ≅ PY                                                         CPCTC

8. Point p is equidistant                             Definition of equidistant.

   from the sides of ∠ABC

Hence, All answers in the table .

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8% of us adults have blood type b-positive. suppose we take a random sample of 38 us adults. let x represent the number of adults (out of the sample of 38) with blood type b- positive. this situation can be modeled with a binomial random variable x. 4. calculate the mean of x. show all work and round your answer to two decimal places.

Answers

Mean of the number of adults (out of the sample of 38) with blood type b- positive (x) is 3.04

Let x be the number of adults out of 38 with blood type b-positive

Probability, p of adults with blood type b-positive=8%=0.08

Sample size, n=38

Using binomial random variable x binomial(n=38, p=0.08)

p(X=x)=[tex]\left \ ({{n} \atop {x}}) \right. p^{x} q^{n-x}[/tex], where x=0,1,2,3,.....n

Mean of x:

Mean of x=(probability of adults with blood type b-positive*sample size)

So, mean of x=p*n, where n=38, p=0.08

                    =0.08*38

                    =3.04

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I need help! Anyone who takes time out of there day to help me thank you so much!

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Answer:

Step-by-step explanation:

Can someone please help me with this 20 points!

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LJN is the correct answer

f(x)= -4x^2+12x-9

What is the value of the discriminant of f?How many x-intercepts does the graph of f have?

Answers

Answer:

discriminant =b^2 -4ac

= (12)^2 -4(-4)(-9)

=0

155% as a mixed or whole number

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Answer:

[tex]1\frac{11}{20}[/tex]

Step-by-step explanation:

155% = 155 / 100 = 1.55

1.55 =155/1 × 100 / 100 = 155 / 100

155 / 100 = 31 / 20

31 / 20 = 1 11/20

Can someone help me please

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"Subtract to eliminate x" is correct option that is option C for the given set of equations -3x+2y=-15 and -3x-6y=9. equation defines "A straight line's general equation is y = mx + c, where m denotes the gradient and y = c denotes the point at which the line crosses the y-axis. On the y-axis, this value c is referred to as the intercept. Y = mx + c represents the equation of a straight line with gradient m and intercept c on the y-axis".

What is  equation?

A mathematical statement known as an equation is made up of two expressions joined together by the equal sign. A formula would be 3x - 5 = 16, for instance. When this equation is solved, we discover that the value of the variable x is 7. The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. The point-slope form, standard form, and slope-intercept form are the three main types of linear equations.

-3x+2y=-15

-3x-6y=9

subtract to eliminate x

8y=-24

For the given set of equations, -3x+2y=-15 and -3x-6y=9, option C, "Subtract to eliminate x," is the correct option. Equation explains "The general equation of a straight line is y = mx + c, where m stands for the gradient and y = c for the point where the line crosses the y-axis. This value c is referred to as the intercept on the y-axis. The equation of a straight line with gradient m and intercept c on the y-axis is represented by Y = mx + c ".

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Can you help me help my sister we are both confused.

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Answer:

A: Common multiple of 4 and 6 is 24

B: They would both be common multiples but they are two different multiples of 4 and 6.

C: 3/4= 18/24    1/6= 4/24

Step-by-step explanation:

A common multiple is a number that two numbers can be multiplied to. Something that both 4 and 6 can be multiplied to is 24, but there are many other multiples of 4 and 6  as well.

Which equations have the same value of x as Three-fifths (30 x minus 15) = 72? Select three options. 18 x minus 15 = 72 50 x minus 25 = 72 18 x minus 9 = 72 3 (6 x minus 3) = 72 x = 4.5

Answers

The equations with same value of x as (3/5)(30x - 15) = 72 is 18x - 9 = 72, 3(6x - 3) = 72 and x = 4.5

How to solve an equation?

An equation shows the relationship between two or more numbers and variables.

Given the equation:

(3/5)(30x - 15) = 72

Opening the parenthesis:

18x - 9 = 72

Factorizing the equation:

3(6x - 3) = 72

Dividing through by 3:

6x - 3 = 24

6x = 27

Dividing through by 6:

x = 4.5

The solution to the equation (3/5)(30x - 15) = 72 yields x = 4.5

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there is a linear relationship between the distance that a car drives and the amount of gas left in the tank of the car. the value of r2 for this linear relationship is 98.01%. what is the value of r?

Answers

A linear relationship between the distance that a car drives and the amount of gas left in the tank of the car is negative, and the value of r is -0.99

A linear relationship between the distance that a car drives and the amount of gas left in the tank of the car are negative because when a car travels a distance, it consumes fuel, and so fuel decrease with distance

Calculating the value of r

Given, r^2=98.01%

r^2=0.9801

r=±√0.9801

r=±0.99

Since r should be negative, so we pick the negative value and reject the positive value

r=-0.99

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Write an expression that is equivalent to 3/4a + 2/3 - 1/2a - 1/3 + 1/2a

Answers

3/4a +1/3. Combine like terms

A baker uses 20 cups of flour to make bread. She uses 2 1/2 cups of flour to make each loaf. The baker sells 3/4 of the loaves of bread that she makes. How many loaves of bread does the baker sell?

Answers

First you need to see how much bread the baker makes if she uses 20 cups then you have to divide by 2 1/2 to see how much bread she made and all once you do that you get the answer ate the bacon made eight loaves of bread in cells 3/4 of the loads then you have to multiply 3/4 by eight to see how many loaves of bread baker sold once you do that you’re left with the answer 6 THE ANSWER TO YOUR QUESTION IS 6

Use the graph to estimate the roots of the equation.

Answers

The roots of a function are the points where the graph crosses the x-axis.

Thus, in the following graph, we can see that the function has 2 roots. These are in:

[tex]\begin{gathered} x=-2 \\ \text{and} \\ x=2 \end{gathered}[/tex]

Answer:

x = -2

x = 2

Time Elapsed: HieAttempt due: Jun 20 a40 Minutes, 30 SeGiven: 21 and 23 are supplementaryProve: line m || linenComplete the proof. Number your reasons in the textbox below.Reasons1.2.Statements21 and 23 are supplementary21 + 23 = 18022 = 23Z1 + Z2 = 180°21 and 22 are supplementaryline m || linen3.4.5.6.

Answers

Statements and reasons.

1) ∠1 and ∠3 are supplementary

Reason: This is true because it is stated in the question.

2) ∠1 + ∠3 = 180º

Reason: By statement 1, ∠1 and ∠3 are supplementary, and by definition, supplementary angles sum up 180º.

3) ∠2 = ∠3

Reason: From the picture we see that ∠2 and ∠3 are opposite congruent angles, so they are equal.

4) ∠1 + ∠2 = 180º

Reason: from statement 2 we have ∠1 + ∠3 = 180º, and from statement 3 we have ∠2 = ∠3, so we have ∠1 + ∠2 = 180º.

5) ∠1 and ∠2 are supplementary

Reason: from statement 4 we have that ∠1 sum up ∠2, so by definition ∠1 and ∠2 are supplementary.

6) line m || line n

Reason: from the picture we see that ∠1 and ∠2 are internal collateral angles of the lines m and n, and from statement 5 we know that ∠1 and ∠2 are supplementary, so we have that the angle between line m and line n is 180°, and by definition, they are parallel lines.

Summary of the reasons

1) It is stated in the question

2) By statement 1 and by definition of supplementary angles.

3) Because they are opposite congruent angles, so they are equal.

4) By statement 2 and 3.

5) By statement 4, and by definition of supplementary angles.

6) By picture ∠1 and ∠2 are internal collateral angles of the lines m and n, and by statement 5 they are supplementary so they are parallel lines.

Rewrite the following numbers as rational numbers in the form of p/q (where P and Q are integers and Q≠O) in there lowest terms:
a). 0.75
b). 0.12
c). 0.80
d).1.25​

Answers

The numbers in the rational form ( in there lowest form) of p/q are

(a) 0.75 = 3/4

(b) 0.12 = 3/25

(c) 0.80 = 4/5

(d) 1.25 = 5/4

In the question ,

number in the decimal form are given , and we have to express them in the rational form that is p/q .

So ,the expressions in rational form and lowest form are

(a) 0.75 [tex]=[/tex] 75/100 = 3/4

(b) 0.12 [tex]=[/tex] 12/100 = 6/50 = 3/25

(c) 0.80 [tex]=[/tex] 80/100 = 8/10 = 4/5

(d) 1.25 [tex]=[/tex] 125/100 = 5/4

Therefore , The numbers in the form of p/q are  (a) 0.75 = 3/4 , (b) 0.12 = 3/25 , (c) 0.80 = 4/5  , (d) 1.25 = 5/4   .

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WILL GIVE BRAINLIEST! Please help and explain, thank you! All that is needed is to find the unknown side.

Answers

Answer: 2

Step-by-step explanation: 12 divided by 3 is 4 so 6 divided by 3 would be 2

⇒I will use the similarity theorem which works by proportion of sides in similar shapes.

⇒The side with magnitude 12 in the bigger triangle is proportional with the  side with magnitude 4 in the  smaller triangle

⇒The side with magnitude 6 in the bigger triangle is proportional with the side with magnitude x in the smaller triangle. The proportionality theorem allows us to equalize the proportions of the sides

⇒HOW? HERE it is the solution

[tex]\frac{12}{4} =\frac{6}{x} \\[/tex]

⇒[tex]12(x)=4(6)\\12x=24\\\frac{1x}{12} =\frac{24}{12} \\x=2[/tex]

⇒I used cross multiplication

Can someone please help me on this?

Answers

y = 4x-9
Reason: It goes up 4 each time and it started at -9.

5x+6y=37
2x + 3y = 4​

Answers

Answer:

x = 29

y = -18

Step-by-step explanation:

5(29) + 6(-18) = 37

145 - 108 = 37

:)

(x,y) = (29, - 18)
Hope that works

Which scatterplot would have a trend line with a negative slope?
On a graph, points are scattered all over the graph.
On a graph, points are grouped together and decrease.
On a graph, points are grouped together and increase.

Answers

Answer: B, the middle graph - "On a graph, points are grouped together and decrease."

Step-by-step explanation:

         A negative slope means the x-value is going down as the y-value increases. The only option that consistently meets this criteria is B, "On a graph, points are grouped together and decrease."

Answer:

The 2nd Graph aka B

Step-by-step explanation:

got it right on edge

Jennifer has a collection of weights that each weigh 4, 6, or 9 pounds. If altogether, the weights weigh 42 pounds, what is the largest number of weights Jennifer could own?

Answers

The largest number of weights Jennifer could own is 798.

When do we use multiplication?

Repeated addition of the same number is made easier by multiplying the numbers. When we need to merge groups of similar sizes, we employ it. For instance, if there are 5 baskets, each containing 4 apples, we can use multiplication to get the total number of apples, which is 5 x 4 = 20 apples.

We can rapidly determine the total number of things by multiplying. When multiplying, we'll consider the number of groups with similar sizes and the number of items in each group.

Given: The collection of weights : 4 , 6 and 9 pounds

The total weight of the weights = 42 pounds

Thus the largest number of weights jennifer could own is 4+6+9 = 19 multiplied  by the total weight of the weights

= 19 × 42

= 798.

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please help me with this homework question!!!

Answers

Answer:

51.06 degree

Step-by-step explanation:

x=sin^(-1)(7/9)

= 51.06 degree

Determine which integer will make the inequality 5x + 12 > 2x + 6 false.

S:{−3}
S:{3}
S:{−1}
S:{1}

Answers

The integer is x>-2

5 x+12>2 x+6

Subtract 12 from both sides

5 x+12-12>2 x+6-12

Simplify

5 x>2 x-6

Subtract 2x from both sides

5 x-2 x>2 x-6-2 x

Simplify

3 x>-6

Divide both sides by 3

[tex]\frac{3 x}{3} > \frac{-6}{3}$$[/tex]

Simplify

x>-2

Positive, negative, and zero are all examples of integers. The Latin word "integer" signifies "whole" or "intact." As a result, fractions and decimals are not included in integers.

An integer is a number with no decimal or fractional part and it includes negative and positive numbers, including zero. A few examples of integers are: -5, 0, 1, 5, 8, 97, and 3,043.

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Can anybody help me on this please? Does anyone see my question?

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The slope of the line is represented by the word m which is obtained as 0.5.

What is the slope?

The ratio that y increase as x increases is the slope of a line. The slope of a line reflects how steep it is, but how much y increases as x increases. Anywhere on the line, the slope stays unchanged (the same).

[tex]\rm m =\dfrac{y_2-y_1}{x_2-x_1}[/tex]

To determine a line's inclination or steepness, use the slope formula. Calculating the ratio of the change in the y-axis to the change in the x-axis may be used to calculate the slope of any line.

From the graph, the data is observed as,

(x₁,y₁)=(0,1)

(x₂,y₂) = (-2,0)

The slope of the line is found as,

[tex]\rm m =\dfrac{0-1}{-2-0} \\\\ m = 0.5[/tex]

Thus, the slope of the line is represented by the word m which is obtained as 0.5.

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pls help me with aswell pls

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Outward journey Speed = 20 km/hr , James stopped for  45  Mins  ,Average speed homewars 15 km/hr

What is speed, for instance?

A measure of speed is the rate at which something is happening, moving, or moving swiftly. The speed of a car being driven at 45 mph serves as an illustration. A person cleaning a room in 10 minutes is an illustration of speed.

From graph  Journey Started at 2PM

on 3PM  James covered 20 km

Hence Speed =  (20 - 0)/(3 -2) = 20 km/hr

outward journey Speed = 20 km/hr

Now outward Distance = 45 km

Time taken = 45/20 = 2 hr 15 min

Hence reached at 4 : 15 PM

Started home at 5 PM

James stopped for  45  Mins  (3/4 hrs)

Reached back at 8PM

time taken = 8 - 5 = 3 Hrs

Distance = 45 km

Average speed homeward = 45/3 = 15 km/hr

Average speed homeward =  15 km/hr

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Use the power reducing fabulous rewrite the identity in terms of the first power of cosine

Answers

The power reducing formula for the fourth power of the cosine function is:

[tex]\cos ^4\theta=\frac{3}{8}+\frac{1}{2}\cos (2\theta)+\frac{1}{8}\cos (4\theta)[/tex]

Replace θ=3x to find the expression for cos⁴(3x) in terms of the first power of the cosine function:

[tex]\begin{gathered} \cos ^4(3x)=\frac{3}{8}+\frac{1}{2}\cos (2\cdot3x)+\frac{1}{8}\cos (4\cdot3x) \\ \frac{3}{8}+\frac{1}{2}\cos (6x)+\frac{1}{8}\cos (12x) \end{gathered}[/tex]

Therefore, the answer is:

[tex]\cos ^4(3x)=\frac{3}{8}+\frac{1}{2}\cos (6x)+\frac{1}{8}\cos (12x)[/tex]

Use the second option to write this expression as input.

I do not need a whole explanation just make the answer clear, please.

Answers

Answer - A.) Myriah: "The only mistake is in changing the mixed number to an improper fraction."


3x6 = 7x - 8
What equations have the same solution set?

Answers

If u don’t know the answer it’s 211 and I recommend having parentheses on 3x6 and a divide 7x-8

I need to know what is the missing reason for line 7 in this proof

Answers

Similarity Theorems

Triangles ABG and DCB are similar by the AA similarity postulate

"If two angles in one triangle are congruent to two angles in another triangle, then the two triangles are similar"

The steps previous to statement 7 prove angles C and B are congruent because they are formed by two parallel lines that intersect a common line.

On the other side, angles DBC and AGB are congruent also because they are both right angles.

With two corresponding congruent angles, the AA similarity postulate is satisfied and the triangles are similar.

for each equation complete the table and then graph the equation

Answers

The slope-intercept form a of the equation of a line is:

[tex]y=mx+b[/tex]

Where m is the slope and b is the intercept.

For this exercise m = -1 and b = -1

To find the 'y' values of the table you just have to replace the x values into the equation:

And put these pairs into the graph and join them with a line:

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