All categories

3 years ago

Find the value of 151 - 4(32 - 2). -11 -33 7 -23

Mathematics

1 answer:

egoroff_w [7]3 years ago

3 0

Steps to solve:

151 - 4(32 - 2)

~Distribute

151 - 128 - 8

~Subtract

23 - 8

Best of Luck!

You might be interested in

28 cookies out of 40 cookies are chocolate chip. What percent of the cookies are chocolate chip?

omeli [17]

Answer:

I’m pretty sure the answer would be 64%

7 0

2 years ago

Read 2 more answers

Which equation using x to represent time best represents the floor number of an elevator descending at a steady rate?

zepelin [54]

C. You'd be starting at a higher floor (positive number) and descending floors (negative number per x). If you assume x is time it's a little more logical and visual.

5 0

2 years ago

Read 2 more answers

Raquel has created a program for a robot. The robot travels 10 meters and stops. The program is designed for wheels that are 2.5

Grace [21]

Answer:

Raquel should adjust the number of rotations to 115.81 rotations

Step-by-step explanation:

step 1

Find the circumference of the wheels that are 2.5 cm in diameter

The circumference is equal to

$C=2\pi r$

we have

$r=2.5/2=1.25\ cm$

assume

$\pi =3.14$

substitute

$C=2(3.14) (1.25)$

$C=7.85\ cm$

step 2

Find the number of rotations

Divide 10 meters by the circumference

$10\ m=1,000\ cm$

$1,000/7.85=127.39\ rotations$

step 3

For a diameter of 2.75 cm find how should she adjust the number of rotations so that the robot travels the same distance

Find the circumference of the wheels

The circumference is equal to

$C=2\pi r$

we have

$r=2.75/2=1.375\ cm$

assume

$\pi =3.14$

substitute

$C=2(3.14) (1.375)$

$C=8.635\ cm$

step 4

Find the number of rotations

Divide 10 meters by the circumference

$10\ m=1,000\ cm$

$1,000/8.635=115.81\ rotations$

3 0

2 years ago

Graph 2x=2y plssssssss

yKpoI14uk [10]

Answer:

4xy

Step-by-step explanation:

2 x 2 = 4, then just plop the x and y down, and there's your answer

8 0

2 years ago

What is the surface area of a sphere with radius of 3.5? A. 12.25p B. 14p C. 24.5p D. 49p

Anuta_ua [19.1K]

S=4πr2 - this is the equation for the surface area of a sphere. We know that the radius (r) is 3.5 so here's how to solve this:

S = 4π r2
S = 4π (3.5)2
S = 4π 12.25
S = 49π

The surface area of a sphere with radius of 3.5 is 49π.

7 0

3 years ago