please hurry need asap
Find the area of this triangle.
155
175
260

Please Hurry Need AsapFind The Area Of This Triangle.155175260

Answers

Answer 1

Answer:

13170.421 -> rounded to nearest whole number is 13170

Step-by-step explanation:

u = a + b + c

area = √(u/2 * (u/2-a) * (u/2-b) * (u/2-c))


Related Questions

One Step Trinomial, Two Step Factoring

Factor:

x^2 - 12x + 35

Answers

Answer:

You can FACTOR x^2-12x+35 by using the AC method

This means the answer will be:

(x-7)(x-5)

I hope this helps!

(Brainliest is optional)

20 units rotated to 90 cc reflected over the x axis and translated 6 units down is ?

Answers

Answer:

.

Step-by-step explanation:

find measure of each missing angle PLSSSS HELP

Answers

The interior angles of the triangle are 43°, 43° and 94°. The exterior angle of the triangle is 86°.

How to find interior and exterior angles of a triangle?

A triangle is polygon with three sides. The sum of angles in a triangle is 180 degrees.

The triangle above is an isosceles triangle. The base angles of a triangle is congruent.

Therefore, the base angles are 5x - 12 and 5x  -12.

The sum of the remote interior angles is equal to the opposite exterior angles.

5x - 12 + 5x - 12 = 8x - 2

10x - 24 = 8x - 2

10x - 8x = -2 + 24

2x = 22

x = 22 / 2

x = 11

Therefore,

5x - 12 = 5(11) - 12 = 43°

Third angle = 180 - 43 - 43 = 94°

Exterior angle =  8x - 2 = 8(11) - 2 = 86°

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Given the exponential growth function †(x) = 75(1.0025)*
What is the initial value of the function?
What is the growth factor, or growth rate of the function (as a percent)?

Answers

The initial value of the function is 75.

The growth factor or growth rate of the function as a percent is 0.25%

An exponential growth model is defined as :

F(x) = A( 1 + r)^x

Where;

A = Initial amount,

r = rate of increase

x = time

Comparing the exponential growth function with the exponential growth model given;

f(x)=75(1.0025)ˣ

A = 75 = Initial amount

The growth rate of the model expressed as a percentage :

Taking :

(1 + r) = 1.0025

1 + r = 1.0025

r = 1.0025 - 1

r = 0.0025

Expressing r as a percentage:

r = 0.0025×100

= 0.25%

Hence we get the required answers.

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8. Emily predicted her car
payment to be
$250 each month. Her actual car
$275 each month.
payment is
Enrique predicted his car
payment to be $200 each month. His actual
car payment is $225 each month.
a. By what percent was Emily's prediction off?
b. By what percent was Enrique's prediction off?

Answers

Emily's prediction was off by 9.09%

Enrique's prediction was off by 11.11%

What is a percentage?

The percentage is calculated by dividing the required value with the total value and multiplying it by 100.

Example:

Required percentage value = a

total value = b

Percentage = a/b x 100

We have,

Emily:

Each month payment = $250

Each month actual payment = $275

The percentage prediction is off by.

=  (275 - 250) / 275 x 100
= 25/275 x 100

= 9.09%

Enrique:

Each month payment = $200

Each month actual payment = $225

The percentage prediction is off by.

= (225 - 200)/225 x 100

= 25/225 x 100

= 11.11%

Thus,

Emily's prediction was off by 9.09%

Enrique's prediction was off by 11.11%

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Deon is going to rent a truck for one day. There are two companies he can choose from, and they have the following
prices.
Company A charges an initial fee of $41.50 and additional 70 cents for every mile driven.
Company B charges an initial fee of $35 and an additional 80 cents for every mile driven.
For what mileages will Company A charge less than Company B?
Write your answer as an inequality, using m for the number of miles driven.

Answers

Answer:

Step-by-step explanation:

answer = company b

Write the equation of the line
that is perpendicular to y=-2x
and passes through (-2, -1)
A) y = 1/2x + 1
B) y = -3x - 7
C) y = -2x - 5
D) y = 1/2x
E) y = 1/2

Answers

The answer is D
I hope this helps!

Select the correct answer.
Solve the following equation by completing the square.
4z²-16z +8=0
O A z = 2 + √2 orz = 2-√2
OB.
z = 2 + √2 or z = − 2 + √2
z = −2+ √2 orz = -2-√2
z = 4 or z = 0
O C.
O. D.
Reset
Next

Answers

Step-by-step explanation:

4z-16z+8=0

[4×8]=32

factors of 32

1,2,4,8,....

if you place a 38- foot ladder against the top of a 32-foot building, how many feet will the bottom of the ladder be from the bottom of the building? round to the nearest tenth of a foot.

Answers

Answer:

6 feet

Step-by-step explanation:

38-32=6

5 km to m convert the following

Answers

Answer:

5 km = 5000 m

Hope this helps : )

What’s the answer to this ?? Does anyone know it ??

Please explain the steps and how you got the answer ): i have a ton more of these to answer and i need to know how to do it.

ONLY ANSWER IF YOU KNOW IT ! WILL REPORT UR ANSWER IF U PUT ANYTHING ELSE.

Answers

The equilibrium quantity is 97 items and equilibrium price is $582

The equation of the price  when quantity demanded

p = 873 - 3q

The equation of the price when quantity supplied

p = 6q

At equilibrium price and quantity

873 - 3q = 6q

Move the like terms to one side

6q + 3q = 873

Add the like terms

9q = 873

q = 873 / 9

Divide the terms

q = 97 items

Substitute the value of q in the equation 2

p = 6q

p = 6 × 97

Multiply the terms

p = $582

Hence, the equilibrium quantity is 97 items and equilibrium price is $582

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factorise x squared +3x - 40

Answers

Answer: (x-5)(x+8)

Step by step: The numbers need to have a product of -40 and add up to 3

Answer:

(x-5)(x+8)

Step-by-step explanation:

Factors of -40:

-1, 40

-2, 20

-4, 10

-5, 8

-5 + 8 =3

x^2+3x-40

x^2 -5x +8x -40

=(x-5)(x+8)

Which value of x solves the equation cos x° = sin (20° + x°), where 0 < x < 90?

Answers

sin x = cos (90 - x) or cos x = sin (90 - x)

This identity holds when the two angles are complementary

i.e. they sum up to 90 degrees.

The value of x is 35°

What are trigonometric identities?

There are three commonly used trigonometric identities.

Sin x = 1/ cosec x

Cos x = 1/ sec x

Tan x = 1/ cot x or sin x / cos x

Cot x = cos x / sin x

We have,

cos x° = sin (20° + x°), where 0 < x < 90

We know that,

sin x = cos (90 - x) or cos x = sin (90 - x)

This identity holds when the two angles are complementary

i.e. they sum up to 90 degrees.

x + 90 - x = 90

Now,

cos x = sin (20 + x)

x + 20 + x = 90

2x + 20 = 90

2x = 70

x = 35

Thus,

The value of x is 35°

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Farmer joe separates his farm into 10 regions. He then randomly selected 5 trees from each region to estimate the number of apples produced on his apple tree farm. What type of sampling is this?.

Answers

it's a Stratified sampling

write the percent 144 as a decimal

Answers

1.44 is 144 as a decimal

for 50 points and brainliest! (Part 2)
Lesson: Linear Inequalities in Two Variables
Directions: Answer the following problem. And graph it.

Please I want a complete answer with a clear explanation. Thank you in advance :)​

Answers

Answer:

4.a)  Broken line.

4.b)  True.

5.a)  Solid line.

5.b)  True.

Step-by-step explanation:

When graphing inequalities:

< or > : broken line.≤ or ≥ : solid line.< or ≤ : shade under the line.> or ≥ : shade above the line.

Question 4

Given inequality:

[tex]y < -\dfrac{1}{2}x+2[/tex]

a)  As the "<" sign has been used, the line will be a broken line.

b)  Substitute (0, 0) into the inequality:

[tex]\begin{aligned}\textsf{When $x=0$ and $y=0$}: \quad 0 & < -\dfrac{1}{2}(0)+2\\0 & < 0+2\\0 & < 2\end{aligned}[/tex]

As zero is less than 2, the solution at (0, 0) is true.

Graphing the inequality

Change the inequality sign to an equals sign, then substitute two values of x into the equation and solve for y to find two points on the line:

[tex]\begin{aligned}x=-2: \quad y &=-\dfrac{1}{2}(-2)+2\\y &=1+2\\y&=3\end{aligned}[/tex]

[tex]\begin{aligned}x=4: \quad y &=-\dfrac{1}{2}(4)+2\\y &=-2+2\\y&=0\end{aligned}[/tex]

Plot the points (-2, 3) and (4, 0).

Draw a broken straight line through the points.

Shade below the line.

Question 5

Given inequality:

[tex]2x+5y \leq 10[/tex]

a)  As the "≤" sign has been used, the line will be a solid line.

b)  Substitute (0, 0) into the inequality:

[tex]\begin{aligned}\textsf{When $x=0$ and $y=0$}: \quad 2(0)+5(0) &\leq 10\\0+0 &\leq 10\\0 &\leq 10\end{aligned}[/tex]

As zero is less than 10, the solution at (0, 0) is true.

Graphing the inequality

Change the inequality sign to an equals sign, then substitute two values of x into the equation and solve for y to find two points on the line:

[tex]\begin{aligned}x=-5: \quad 2(-5)+5y &=10\\-10+5y &=10\\5y &=20\\y&=4\end{aligned}[/tex]

[tex]\begin{aligned}x=5: \quad 2(5)+5y &=10\\10+5y &=10\\5y &=0\\y&=0\end{aligned}[/tex]

Plot the points (-5, 4) and (5, 0).

Draw a solid straight line through the points.

Shade below the line.

I need help please!!!!!

Answers

Answer:
1.14



Explaination:
Using the formula the y^2-y^1/x^2-x^1 you can find the gradient/slope

Which graph represents a function with direct variation?

Answers

Graph fourth represents a function with direct variation and the equation of the graph will be y = kx option (D) is correct.

What is a proportional relationship?

It is defined as the relationship between two variables when the first variable increases, the second variable also increases according to the constant factor.

It is given that:

The graph is shown in the pictures

As we know,

The proportional relationship can be defined as:

y ∝ x

y = kx

k is the constant of proportionality:

y = kx is the equation of the line which passes through the origin.

Graph four passes through origin.

Thus, graph fourth represents a function with direct variation and the equation of the graph will be y = kx option (D) is correct.

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there are 6 circles and 9 triangles what is the simplest ratio of circles to triangles?

Answers

The simplest ratio is 2:3
Maybe simplify 2:3, six can be divide by 3 and 9 too

in a parking lot with 200 cars, 50 cars are white, 30 cars are red, and 20 cars are silver. one car will be selected at random from the parking lot. if each car in the parking has only one color, which of the following cannot be the probability that the selected car will be green?

Answers

If each car in the parking has only one color , then the option which cannot be the probability that the selected car will be green is 0.6 , the correct option is (c) .

In the question ,

it is given that ,

total numbers of car in the parking lot = 200 cars

number of white cars = 50

number of red cars = 30

number of silver cars = 20

let the number of green cars be "x" ,

So , the number of green cars possible = 200 - 100 = 100

that means x ≤ 100 .

So , P(green) = x/200

Option(a)

p = 0.2 ,

So , x/200 = 0.2

x = 40

Option(b)

p = 0.1 ,

So , x/200 = 0.1

x = 20

Option(c)

p = 0.6 ,

So , x/200 = 0.6

x = 120

Option(d)

p = 0.5 ,

So , x/200 = 0.5

x = 100 ,

We can see that only option(c) gives the number of green cars as 120 , which is not possible .

Therefore , If each car in the parking has only one color , then the option which cannot be the probability that the selected car will be green is 0.6 , the correct option is (c) .

The given question is incomplete , the complete question

In a parking lot with 200 cars, 50 cars are white, 30 cars are red, and 20 cars are silver. one car will be selected at random from the parking lot. if each car in the parking has only one color, which of the following cannot be the probability that the selected car will be green ?

(a) 0.2

(b) 0.1

(c) 0.6

(d) 0.5

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Need help on algebra

Answers

The required value of the given equation when x = 5 is y = 585.5

What is an algebra ?

The area of mathematics known as algebra is used to help express issues or circumstances into mathematical expressions. We employ integers with definite or fixed values in algebra, such as 2, 7, 0.068, etc. In addition to integers, algebra uses variables like x, y, and z.

Given : y = 114.50x + 13

To find ; The value of this equation when x = 5

Thus to find this value we have to simply substitute the value of x in the given equation

Hence, we will get ,

y = 114.50 × 5 + 13

this implies y = 572.5 + 13

which is equal to y  = 585.5

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2) Ahmad had 15 coins in nickels and quarters. He knows he has a $2.95 in change. How many
quarters and nickels does he have?

Answers

Answer:

11 quarters and 4 nickels

Hope this helps! :3

Please mark brainliest! <3

what is the answer to 5=6h+5(h-5)

Answers

Answer: H = 30/11
Explanation:
Distribute the 5 to h and -5

Answer: the answer is  30/11

Step-by-step explanation:

hope it helps:)

suppose that pulse rates among healthy adults are normally distributed with a mean of 80 beats/minute and a standard deviation of 10 beats/minute. what proportion of healthy adults have pulse rates that are more than 86 beats/minute? round your answer to at least four decimal places.

Answers

The Proportion of healthy adults have pulse rates that are more than 86 beats/minute is 27.42%

Z- Score gives an idea how far a data point is from mean .

z = x- μ / σ where numerator is difference between the random variable and the actual mean dividing by the standard deviation .

Given , mean = 80beats/minute

standard deviation = 10 beats/minute

x = 86 beats/minute

Applying z score formula :

z-score = (x-mean)/standard deviation

P(x>86) = P(z > 86-80/10)

=P(z>6/10)

=P(z>0.6) = 1 - P(z<0.6)

= 1 -0.7257

= 0.2742

Hence, the proportion of healthy adults have pulse rates that are more than 86 beats/minute is 0.2742

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HELP! I WILL NAME YOU THE BRAINLIEST. Solve the system by graphing.
y = x + 4
-x + y = -3

Answers

Answer: There are no solutions to the system

Step-by-step explanation:
Not sure if this is meant to be a trick question, but there is no solution to this system of linear equations. Just by analyzing them in slope intercept form y=mx+b, it is evident that slope, m, of both is 1.

This is even easier to see by graphing the equations as straight lines. Rearranging the second to solve for y, we get y = x - 3. Graphing, we place a point at the y-intercept at (0,-3), and then plug in an arbitrary value for x, say x=4. According to the equation, y would be 1 when x is 4 - and we get the point (4,1). Likewise, for the equation y = x + 4, we plot the y-intercept at the point (0,4) and pick another arbitrary value for x. Say x=4 here as well. According to the equation, y would be 8 when x is 4 - and we get the point (4,8). We then draw a straight line between these two points for both equations.

The lines we drew are parallel and, by the definition of parallel, will never intersect. Geometrically, the intersection of a system of two equations provides the solution to the equation. In 2D this is a point with x and y coordinates. Here, there is no intersection and thus no solution to the system.

In other words, there are no real number x values where the difference of x and 3 is the same as the sum of x and 4. This should make intuitive sense, and the graph of the equations provides a visual proof for this intuition.

Hope this helps!

Evaluate the expression if a = −2, b = −3, c = 2, x = 2.1, y = 3, and z = −4.2.



4a−|3b+2c|

Answers

The value of the expression when evaluated is: -18.

How to Evaluate an Expression?

Evaluation of an expression involves plugging in the values of the given variables and then solving to determine the value of the expression in it's simplest form.

Given the expression, 4a - |3b + 2c|, to evaluate, substitute a = -2, b = -3, c = 2 into the expression and solve:

4(-3) - |3(-3) + 2(2)|

-13 - |-9 + 4|

-13 - |-5|

-13 - 5

= -18

The value of the expression is: -18.

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an airplane flying at an elevation of 3,500 ft., directly above a straight highway. two motorists are driving cars on the highway on opposite sides of the plane. the angle of depression to one car is 31 degrees and to the other is 53 degrees. how far apart are the cars?

Answers

The first and second cars are 7724 feet apart from each other.

The angle of depression is the angle we have to move your eyes downwards to look at the car from the plane. Let's start with the first car, with the 31° angle of depression. Draw an upside-down right triangle with vertices at the plane, the car, and the point 3500 feet in the air above the car (level with the plane). The vertex at the plane is 31° and the right angle is the vertex in the air above the car. The length of the leg from the car to the point in the air above the car is 3500 feet. We like to find the length of the leg from the plane to the point in the air above the car. Since the two sides involved are the legs of the triangle, use tangent:

     tan = opposite/ adjacent

⇒  tan(31°) = 3500/x

⇒ 0.60086 = 3500/x

⇒ 0.67 x = 3500            [ rounding up 0.60086 = 0.67]

⇒ x = 5223.88

That means the first car is 5223.88 feet from the point on the highway below the plane.

We can do something similar with the second car, which has an angle of depression of 53° from the plane. Again, the leg from the car to the point in the air above the car (level with the plane) is 3500 feet, the right angle is at the vertex at the point in the air above the car, and the 53° angle is at the vertex at the plane. We are looking for the length of the other leg, which runs from the plane to the point in the air above the car. Use tangent:

    tan(53°) = 3500/x

⇒ 1.327 = 3500/x

⇒ 1.4x = 3500            [ rounding 1.327 = 1.4]

⇒ x = 3500/1.4
⇒ x = 2500

That means the second car is 2500 feet from the point on the highway below the plane.

Add the two distances together to get the total distance from car to car:

5223.88 + 2500.00 = 7723.88

So, rounded to the nearest foot, the cars are 7724 feet apart.

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Tiffany’s allowance is reduced $1. 25 every time she forgets to clean her room. If she forgets to clean her room 7 times this month, by how much money is tiffany’s allowance reduced?.

Answers

The amount of money that is reduced from Tiffany's allowance is $8.75

The amount of allowance reduced every time she forget to clean her room = $1.25

Number of times that she forgets to clean her room = 7 times this month

The amount of money is reduced from Tiffany's allowance =  Number of times that she forgets to clean her room × The amount of allowance reduced every time she forget to clean her room

Here we have to use the multiplication to find the amount

Substitute the values in the equation

The amount of money is reduced from Tiffany's allowance = 7 × 1.25

Multiply the terms

= $8.75

Hence, the amount of money that is reduced from Tiffany's allowance is $8.75

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a college believes that 28% of applicants to that school have parents who have remarried. how large a sample is needed to estimate the true proportion of students who have parents who have remarried to within 6 percentage points with 95% confidence?

Answers

The sample size required for the true proportion of students who have parents who have remarried is 607.

What is termed the Confidence Interval?

The confidence interval is indeed the range of values within which you expect your forecast to fall a certain proportion of the time if you repeat your experiment or re-sample a population in the same manner.

The alpha value determines the confidence level, which is the percentage of times you anticipate reproducing an approximate between both the upper and lower limits of the confidence interval.

The above problem is based on the use of determining sample size to estimate the true percentage of students given the constraints.

We may also need to consult the table to determine the Z value.

For the given question,

α = 0.5

Consider the Z-table,

Zα/2 = Z (0.1/2)

Z (0.025) = 1.96

Let 'n' be the sample size required for the true proportion of students who have parents who have remarried.

For calculating the margin error 'E' is given 3%.

n = Z² (α/2) / E² × (P°(1 - P°))

Put the given values.

n = (1.96)² / (0.03)²  × (0.28(1 - 0.28))

On solving,

n = 4268.444(0.2016)

n = 860.51

n ≈ 860.51

Thus, the sample size required for the true proportion of students who have parents who have remarried is 860.

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Find the value of 49^-1/2
Find the value of (27/125)^2/3

Answers

The value of [tex]49^{-1/2}[/tex] is 1/7 and the value of [tex](\frac{27}{125}) ^{2/3}[/tex] is 9/25.

According to the question,

We have the following expressions:

[tex]49^{-1/2}[/tex]

Now, we will convert the base of these expressions in exponential form in such a way the denominator of powers will get divided:

[tex]7^{2*(-1/2)}[/tex]

[tex]7^{-1}[/tex]

Or it can be 1/7 because we have positive exponents.

Now, we have another expression:

[tex](\frac{27}{125}) ^{2/3}[/tex]

We will follow the same steps to solve this expression:

[tex](\frac{3}{5}) ^{3*2/3}[/tex]

[tex]\frac{3}{5} ^{2}[/tex]

Now, expanding the numerator and denominator of the fraction by multiplying them two times, we have the following fraction:

9/25

Hence, the value of [tex]49^{-1/2}[/tex] is 1/7 and the value of [tex](\frac{27}{125}) ^{2/3}[/tex] is 9/25.

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