Select the correct answer for when you evaluate the following function at f(5):

f(x)=−x2+2x−1

A

34

B

4

C

-16

D

14

A because (-5)^2 = 25 + 2(5) =35-1=34

A. 34

f(5)=5^2+2x-1

you replace all x with 5

5^2=25

2(5)= 10

f(5)=25+10-1

f(5)=34

f(5)=5^2+2x-1

you replace all x with 5

5^2=25

2(5)= 10

f(5)=25+10-1

f(5)=34

Which statements are true regarding the prism? Check

all that apply.

The prism has no vertices.

The prism has 9 edges.

The bases of the prism are triangles.

The bases of the prism are rectangles.

The prism has 5 faces.

**Answer:**

The prism has 9 edges, The bases of the prism are triangles, and the prism has 5 faces.

Would really appreciate a brainliest! Hope this helped! =)

**Answer: **B, C, E

**Step-by-step explanation: dude trust me c'mon **

There are 110 people at a meeting. They each shake hands with everyone else. How many handshakes were there?

A) Permutation

B) Combination

C) Circular permutation

Each of them shakes hands with 109 others.

109*110 = 11990 handshakes were done.

109*110 = 11990 handshakes were done.

Pleaaase help me out here im being timed!!

Really appreciate it if u did thank u.

The answer is 180. Or C.A triangle’s full angle is 180 so the answer is 180

I NEED HELP ASAP!!! Suppose a study shows that 1 out of 287 computers are hacked. If a company has 8,564 computers, how many are not likely to be hacked? Round your answer to the nearest whole number

**Answer: 30 computers.**

**Step-by-step explanation: Just divide the total amount of computer by the probability, which is 287. then you get 29.83, after that just round to the nearest whole number.**

**Answer:**

8534

**Step-by-step explanation:**

8564/287=29.8 rounded is 30 so 8564-30=8534 if i am wrong sorry

What is the direction of the vector [tex]r(t)=(1,\sqrt{3} )[/tex]?

1

[tex]\sqrt{2}[/tex]

pi/6

pi/3

**Answer:**

π/3

**Step-by-step explanation:**

The vector is in the first quadrant. The angle is:

tan⁻¹(√3 / 1) = π/3

please help immediately very confused

**Answer:**

4.5

**Step-by-step explanation:**

162/360=0.45

0.45*10=4.5

**Answer:**

4.5units

**Step-by-step explanation:**

arc length's formula:2πr(∆/360)

remember, 2πr: circumference of a circle:

10units according to diagram.

∆=162°

using formula, 10(162°/360)

10*162/360 : 162/36

:4.5 units.

1 point

Find the volume of the following pyramid. Round to the nearest tenth if

needed. *

O V= 60 in cubed

OV= 20 in cubed

V= 30 in cubed

picture above!

**Answer:**

V=20 in cubed

**Step-by-step explanation:**

The formula to find the volume of a pyramid is L×W×H÷3

L×W=15 or 5×3=15 15×H=60 or 15×4=60 60÷3=20 in cubedTherefore V =20 in cubed

Hope that helped! If you have any further questions please message me! Good luck!

A triangle has a side with length of 6 feet and another side with length of 8 feet. The angle between the sides measures 73°. Find the area of the triangle. Round your answers to the nearest tenth. Please show work.

a. 23.0 ft^2

b. 45.9 ft^2

c. 1752 ft^2

d. 7.0 ft^2

**Answer:**

Area = (1/2) * side 1 * side 2 * sine (73 degrees)

Area = (1/2) * 6 * 8 * .9563

Area = 22.9512 square feet

**Step-by-step explanation:**

Answer:

a

Step-by-step explanation:

Area = ½ a b sinC

= ½ × 6 × 8 × sin(73)

= 22.9513141431

To the nearest tenth: 23.0 ft²

????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

**Answer:**

the answer you are looking for is b=7

I have a test to do today and I need help with it, i don't understand any of it. I will copy and paste it here: IQ scores are normally distributed with a mean of 100 and standard deviation of 15. 1) About what percent of people would have IQ between 85 and 115? 2) About what percent of people would have IQ between 70 and 130? 3) About what percent of people would have IQ above 130? 4) If a school had 255 students, about how many would you expect to have an IQ less than 70? 5) If a school had 1531 students, about how many would you expect to have an IQ greater than 145? 6) If a school has 354 students with an IQ between 100 and 130, about how many students does the whole school have?

**Answer:**

68%

**Step-by-step explanation:**

IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. About 68% of individuals have IQ scores in the interval 100 ± 1 ( 15 ) = [ 85 , 115 ] .

Which is the net for this rectangular prism? ASAP

The 4th one i think

**Answer:**

The last 4th one is correct

Fourteen subtracted from the product of a number and -3 is 25

**Answer:**

5.5 is the number.

**Step-by-step explanation:**

14-(-2x)=25

Solve the equation.

2x=11

x=5.5

The **value **of **number **is -13.

A branch of mathematics known as** algebra **deals with **symbols **and the mathematical **operations **performed on them.

Variables are the name given to these symbols because they lack set values. . In order to **determine **the **values**, these **symbols **are also **subjected **to various addition, subtraction, multiplication, and division **arithmetic operations**.

Given:

Fourteen subtracted from the product of a number and -3 is 25

let the **number **be x

**product **of a **number **and -3= -3x

and, Fourteen **subtracted **from the product of a number and -3

= -3x- 14

So, -3x -14 = 25

-3x = 25+14

-3x = 39

x= -13

Hence, the **value **of x is -13.

Learn more about **Algebra **here:

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Mrs Andrews had 1 2/8 pizzas left after her pizza party.After giving some to mr.Andrews,she had 6/8 left.What fraction of the pizza did she give to mr.Andrews?Use the fraction models to help you solve the problem.

Answer: 4/8

Step-by-step explanation:

From the question, Mrs Andrews had 1 2/8 pizzas left after her party and after giving some to Mr Andrews, she then had 6/8 left.

To know the fraction given to Mr Andrews, we subtract 6/8 from 1 2/8. This will be:

= 1 2/8 - 6/8

= 4/8

She gave 4/8 to Mr Andrews.

can't figure this out.. please help if you can.

**Answer:**

1725 square feet

**Step-by-step explanation:**

[tex]area \: of \: yard = \frac{1}{2} (50 + 65) \times 30 \\ = 115 \times 15 \\ = 1725 \: {ft}^{2} \\ [/tex]

**Answer:**

1725 sq ft

**Step-by-step explanation:**

50+65=115

115/2=57.5

57.5*30=1725

Four students were asked to label angles in pairs of triangles. Their drawings are shown below. Tatyanna Triangle A B C. Angle B is 54.3 degrees and angle C is 61.2 degrees. Triangle X Y Z. Angle Z is 64.5 degrees and angle Y is 54.3 degrees.[Not drawn to scale] Simon Triangle A B C. Angle A is 63.2 degrees and angle B is 58.4 degrees. Triangle X Y Z. Angle Z is 63.2 degrees and angle Y is 58.4 degrees.[Not drawn to scale] Anders Triangle A B C. Angle A is 59.8 degrees and angle B is 60.6 degrees. Triangle X Y Z. Angle X is 59.8 degrees and angle Z is 60.6 degrees.[Not drawn to scale] Kai Triangle A B C. Angle B is 60.9 degrees and angle C is 57.7 degrees. Triangle X Y Z. Angle X is 61.4 degrees and angle Z is 57.7 degrees. [Not drawn to scale] Which student labeled the triangles such that Triangle A B C is similar to X Y Z? Tatyanna Simon Anders Kai

**Answer: **I’m confident with Kai being the correct answer

Kai **labeled **the **triangles **such that ΔABC is **similar **to ΔXYZ.

A **triangle **is a **two-dimensional geometrical figure** that has three **sides**, three **vertices**, and three** interior angles**.

As per Tatyanna:

In ΔABC, ∠B = 54.3°, ∠C = 61.2°

Therefore, ∠A = 180° - (54.3° + 61.2°) = 64.5°

In ΔXYZ, ∠Z = 64.5°, ∠Y = 54.3°

Therefore, ∠X = 180° - (64.5° + 54.3°) = 61.2°

As per Simon:

In ΔABC, ∠A = 63.2°, ∠B = 58.4°

Therefore, ∠C = 180° - (63.2° + 58.4°) = 58.4°

In ΔXYZ, ∠Z = 63.2°, ∠Y = 58.4°

Therefore, ∠X = 180° - (63.2° + 58.4°) = 58.4°

As per Anders:

In ΔABC, ∠A = 59.8°, ∠B = 60.6°

Therefore, ∠C = 180° - (59.8° + 60.6°) = 59.6°

In ΔXYZ, ∠X = 59.8°, ∠Z = 60.6°

Therefore, ∠Y = 180° - (59.8° + 60.6°) = 59.6°

As per Kai:

In ΔABC, ∠B = 60.9°, ∠C = 57.7°

Therefore, ∠A = 180° - (60.9° + 57.7°) = 61.4°

In ΔXYZ, ∠X = 61.4°, ∠Z = 57.7°

Therefore, ∠Y = 180° - (61.4° + 57.7°) = 60.9°

Therefore, the **sequence **and the **value **of the **angles **for ΔABC and ΔXYZ matches only with Kai's **drawings**.

Therefore, as per his **drawings**, ΔABC and ΔXYZ will look **similar**.

Learn more about a **triangle **here: https://brainly.com/question/22483552

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plzzzzzzzzzzzzaaaaaaaa

**Answer:**

A

**Step-by-step explanation:**

[tex]y^2-11y=-28\\y^2-11y+28=0\\(y-7)(y-4)=0\\y=4, 7[/tex]

The correct answer choice is A. Hope this helps!

8+16÷4·3+5·4·25·2 =

solve the equation

**Answer:**

1020

**Step-by-step explanation:**

8+16÷4·3+5·4·25·2

PEMDAS

Multiply and divide from left to right

8+4·3+5·4·25·2

8+12+5·4·25·2

8+12+1000

Then add

1020

Simplify the polynomial expression

(-2m2 + m - 15) - (4m2 + 7m - 2)

**Answer:**

-6m^2-6m-13

**Step-by-step explanation:**

(-2m^2+m-15)-(4m^2+7m-2)

-2m^2+m-15-4m^2-7m+2

-6m^2-6m-13

A little boy goes shopping and purchases 12 tomatoes. On the way home, all but 9 get mushed and ruined. How many tomatoes are left in a good condition?

**Answer:**

3

**Step-by-step explanation:**

its so easy all you have to do is 12-9=3

**Answer:**

9

**Step-by-step explanation:**

he has 12 tomatoes in total

all but 9 get mushed and ruined.

that means that he has 9 left and the other 3 are ruined

hope this helped :D

Vijay's family needs a new microwave. There is one on sale that measures 20 inches by 14 inches by 11 inches. What is the volume of the microwave?

Answer:3080”

Step-by-step explanation:

What is the equation of a line with a slope of 6 and y intercept of -2

**Answer:**

6x-y=2 is the equation

**Step-by-step explanation:**

The formula is y= mx+c where m= slope and c = y-intercept

so replacing their values,

y = 6x -2

y+2= 6x

6x-y = 2 is the required equation.

**Answer:**

y=6x-2

**Step-by-step explanation:**

Answer: to write an equation it has to be y=mx+b

The slope is 6, so you substitute the 6 in for the m. M is always the slope.

You also keep the x there.

The y intercept, also know as b, is -2 so you substitute that in for b.

Then you get the equation on the line.

y=6x-2!

Hope this helps. :)

What is the equation

**Answer:**

76

**Step-by-step explanation:**

-4x + 104 = -200

-4x = -304

4x = 304

x=76

Can someone please help me? I keep losing points...

CORRECT ANSWERS ONLY PLEASE!!!!

Use the formula i = prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.

Round your answer to the nearest dollar.

**Answer:**

14,400

**Step-by-step explanation:**

i=prt

p=40,000

r=0.09 have to turn percent to decimal

t=4

(40,000)(0.09)(4)

**Answer:**

Well, this is simple.

I=PRT

(Interest= Principle*Rate*Time)

So, simply divide both sides by PR

T=I/PR

Your answer is C: T = I divided by the quantity P times R

(This should have been represented as: T= I/PR)

~Hope this helps

**Step-by-step explanation:**

I will mark brainliest if you are correct!

When solving the equation, which is the best first step to begin to simplify the equation?

-2 (x + 3) = -10

A. (-2) (-2) (x + 3) = -10 (-2)

B. -1/2 (-2) (x + 3) = -10 (-1/2)

C. -2/2 (x + 3) = -10/2

-2/-10 (x + 3) = -10/-10

**Answer:**

i think the answer is C

**Step-by-step explanation:**

**Answer:**

Look below.

**Step-by-step explanation:**

Uh here's what I did:

-2x-6= -10

Add 6 to both sides.

-2x=-4

Divide both sides by -2

x=2

If a cylinder with height 9 inches and radius r is filled with water, it can fill a certain pitcher. How many of these pitchers can a cylinder with height 9 inches and radius 2r fill?

Answer:

Step-by-step explanation:

First, calculate the volume of the first cylinder

V= pi * r^2 * h

= pi * r^2 * 9 = 9 pi r^2

Volume of the second cylinder

V = pi * (2r)^2 * 9 = 36 pi r^2

the number of pitcher that can be filled is volume of second pitcher divided by volume of smaller 36 pi r^2 / 9 pi r^2 = 4

The number of **cylinders **that can be filled is given by the equation A = 4

A **cylinder **is a three-dimensional shape consisting of two parallel circular bases, joined by a curved surface. The center of the circular bases overlaps each other to form a right cylinder. The volume of a cylinder is

Volume of **Cylinder **= πr²h

Surface area of **cylinder **= 2πr ( r + h )

where r is the radius of the cylinder

h is the height of the cylinder

Given data ,

Let the volume of the first **cylinder **be V₁

The radius of cylinder 1 = r

The height of the cylinder 1 = 9 inches

Let the volume of the second **cylinder **be V₂

The radius of cylinder 1 = 2r

The height of the cylinder 1 = 9 inches

Now , the volume of **cylinder **1 is V₁ = πr²h

Substituting the values in the equation , we get

V₁ = 9πr²

Now , the volume of **cylinder **2 is V₂ = πr²h

Substituting the values in the equation , we get

V₂ = 9π ( 2r )²

V₂ = 36πr²

And , the number of cylinders that can be filled is A = V₂ / V₁

On simplifying the equation , we get

The number of cylinders that can be filled is A = 36πr²/9πr²

The number of **cylinders **that can be filled is A = 4 cylinders

Hence , the number of **cylinders **is 4

To learn more about **cylinders **click :

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Archaeology students are constructing a replica of the Great Pyramid of Giza that they will then fill with sand. The replica is to be the size of the original pyramid. The Great Pyramid is approximately meters tall and each side of the base is approximately meters long. Based on these measurements, how many cubic meters of sand will the students need? Round your answer to the nearest whole number.

Archaeology students are constructing a replica of the Great Pyramid of Giza that they will then fill with sand. The replica is to be 120the size of the original pyramid. The Great Pyramid is approximately 147 meters tall and each side of the base is approximately 230 meters long. Based on these measurements, how many cubic meters of sand will the students need? Round your answer to the nearest whole number.

Answer: 972 m^3 of sand

Step-by-step explanation:

Height of original pyramid = 147 meters

Each side of the base = 230 meters (that is both the base length and base width).

If replica pyramid is to be 1/20 the size of the original pyramid :

Size dimension of replica pyramid will therefore be,

Height = 1/20 × 147 = 7.35metres

Each Base = 1/20 × 230 = 11.5 metres

To calculate the amount of sand required, we can get these by Calculating the volume of the pyramid which us the amount of space occupied by an object.

The volume of a pyramid is given by:

(Base length × base width × height) ÷ 3

( 7.35 m × 11.5 m × 11.5 m) / 3

972.0375 m^3

That means the volume of the pyramid is 972.0375 m^3

Find the value of the variables for each set or similar figures

**Answer:**

3

**Step-by-step explanation:**

What is the value of 9x - 4y if x = 3 and y = 2

**Answer:**

19

**Step-by-step explanation:**

plug both values in

**Answer:**

19

**Step-by-step explanation:**

*Since it gives you the values of x and y, all you need to do is plug in the numbers, like so:*

9x - 4y

9(3) - 4(2)

27 - 8

19

Will mark Brainliest please answer

**Answer:**

A. (-1,-2)

**Step-by-step explanation:**

hope this helps :) and can i ask is that a leg next to the screen?

Simplify 8^2/3 -√9×10^0+(1/144)^-1/2

**Answer:**

13

**Step-by-step explanation:**

We have the following expression:

[tex]8^{\frac{2}{3} } -\sqrt{9}*10^{0} + (\frac{1}{144}) ^{-\frac{1}{2} }[/tex]

If we do part by part, we have remains:

[tex]8^{\frac{2}{3} }[/tex] = 4

8 = 2^3

Therefore, the exponents 3 * 2/3 = 2 are multiplied

2^2 = 4

[tex]\sqrt{9}*10^{0}[/tex] = 3

We know that the root of 9 is equal to 3 and that every number raised to 0 is equal to 1, therefore 1 * 3 = 3

[tex](\frac{1}{144}) ^{-\frac{1}{2} }[/tex] = 12

When the exponent is negative, the fraction can be inverted and at the end there is 144 ^ 1/2, which would be the root of 144, which is equal to 12.

So, we have:

4 - 3 + 12 = 13

Which ideas in this paragraph support the idea that it is important to achieve ones dreams and help others achieve theirs? Check all that apply.Pausch played football as a child.His coach taught him about enthusiasm.His coach tried new ways of making the team successful.It is important for people to not always be where they are supposed to be.Pausch learned that enthusiasm can come from creativity.
Evaluate the extent to which various ideologies contributed to the development of European and American imperialism from the late 1800s to the early 1900s.
Which section BEST supports the inference that Georgia's geography varies widely from place to place?(A)Why's It Called That?(B)Geography and Landforms(C)Wildlife(D)Natural Resources
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A shirt is priced at $24.95. If you have a coupon for 30% off, how much does the shirt cost after the coupon is applied?
AWARDING BRAINLIEST! PLEASE HELP!!!
whats the solution
Solve the system using elimination and describe your steps.3x + y = 95x + 4y = 22-------------------
Which of the following is NOT TRUE about Judaism. Women can be rabbis They worship in temples or synagogues They celebrate Easter Many Jews keep a kosher diet
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Prodigy math i will mark you brainliest if you get it right