All categories

3 years ago

Evaluate each expression for a = -4, b = 3, and c = 2. 4a²b-23

Mathematics

1 answer:

aleksklad [387]3 years ago

4 0

Answer: -215

Please give brainliest

You might be interested in

What is the name of the regular polygon that measures 140ﾟ

andrezito [222]

Answer:

The regular polygon is a nonagon

Step-by-step explanation:

The correct question is

What is the name of the regular polygon that each interior angle measures 140ﾟ?

we know that

The formula to find the sum of the interior angles in a regular polygon is equal to

$n(a)=(n-2)180\°$

where

n is the number of sides of the regular polygon

a is the measure of each interior angle of the regular polygon

we have

$a=140\°$

substitute in the formula and solve for n

$n(140\°)=(n-2)180\°$

$140n=180n-360$

$180n-140n=360$

$40n=360$

$n=9\ sides$

The regular polygon has 9 sides

therefore

The regular polygon is a nonagon

5 0

3 years ago

There are 640 apples in the box if 20% of apples are found to be rotten . How many are good apples ?

Whitepunk [10]

640x.2=128
640-128=512

6 0

3 years ago

Which graph represents a proportional relationship? A. B. C. D.

eimsori [14]

Answer:

Step-by-step explanation:

A straight diagonal line going the middle of the graph is a proportianal relationship.

4 0

3 years ago

Read 2 more answers

What is the reciprocal

weqwewe [10]

Answer is C. 7/12 has the reciprocal of 12/7. When You multiply by a reciprocal, you just switch the numerator and denominator. The answer does NOT become negative. It would change the fraction itself.
Example:
3/6= 6/3
5/7= 7/5

3 0

3 years ago

Read 2 more answers

Solve. check for extraneous solutions sqrt x+7-x=1

leva [86]

Answer:

i belive the answer should be x = 0

Step-by-step explanation:

Since two opposites add up to zero, remove them from the expression

and then 7=1 the statement is false for any value of x

3 0

3 years ago