All categories

3 years ago

Evaluate the expression 3.14(a2 + ab) when a = 4 and b = 3.

Mathematics

2 answers:

TiliK225 [7]3 years ago

8 0

3.14((4)2+(4)(3))
3.14(8+12)
3.14 (20)
=62.8

yuradex [85]3 years ago

6 0

I think the ansewer is 25.55 but am not 100% sure

You might be interested in

Write a single transformation that maps ABC onto A' B' C'

blsea [12.9K]

9514 1404 393

Answer:

Either of ...

(x, y) ⇒ (-x, -y)
Rotation 180° about the origin

Step-by-step explanation:

There are at least two ways to express the transformation that maps each coordinate to its opposite.

1. reflection across the origin: (x, y) ⇒ (-x,-y)

2. rotation 180° (either direction) about the origin.

Take your pick.

4 0

3 years ago

30 POINTS

lesantik [10]

Answer: (26996, 42744)

Step-by-step explanation: N/A

5 0

3 years ago

A hemisphere has a curved surface area of 364.5*22/7. Find its radius.

Stella [2.4K]

Answer:

nkvndkfhbkbhjbdhbhbfdhbkxcx

Step-by-step explanation:

vchdksbkfgbkbkhbdhbbhbshbfhklkgfsfg

6 0

3 years ago

Read 2 more answers

Suppose Lin labels the books at a constant speed of s books per minute. There can be several equations written that represent th

Alla [95]

Answer:

$S = \frac{b}{m}$

Step-by-step explanation:

Given

$Speed = s$

Required

Determine the expression for s

The speed is calculated as:

$Speed = \frac{Number\ of\ books}{Time}$

Substitute S for speed

$S= \frac{Number\ of\ books}{Time}$

Let the number of books be b and the time be m.

The expression becomes

$S = \frac{b}{m}$

Hence, the expression for the scenario is:

$S = \frac{b}{m}$

4 0

3 years ago

Factor out the greatest common factor. 10a3b−6a2b2

podryga [215]

Answer:

2a^2b(5a-3b)

If not then the other way is

5a-3b

Step-by-step explanation:

The GCF of 10a^3b and -6a^2b^2 is 2a^2b

So divide by that you will get

2a^2b(5a-3b)

4 0

3 years ago