3 years ago

HELP ME PLS

Mathematics

1 answer:

PSYCHO15rus [73]3 years ago

3 0

Answer:

A=30

Step-by-step explanation:

You might be interested in

What is the value of 2x^3+7x^2-19x-6 if the value of x is -1

Paul [167]

Answer:

-40

Step-by-step explanation:

Let's input x into all of the slots.

$-2^{2}+-7^{2}+19-6$

Now, let's solve!

$-4-49+19-6$

$-40$

So, the answer is -40!

5 0

3 years ago

|-25.6|+|-11.4| What is the answer to this

12345 [234]

37. The absolute value symbol turns any negative number positive if it's within those brackets, so that's why the answer is positive. Hope this helped!

3 0

3 years ago

A rectangle has a height of k^2+3k 2 +3k, squared, plus, 3 and a width of k^2+7k 2 +7k, squared, plus, 7. Express the area of th

vlada-n [284]

Answer: $k^4+10k^3+21k^2$

Step-by-step explanation:

Given

Height of rectangle is $h=k^2+3k$

Width is $w=k^2+7k$

The area of the rectangle is given by the multiplication of the height and width

$\Rightarrow A=\left(k^2+3k\right)\left(k^2+7k\right)\\\\\Rightarrow A=k^2k^2+k^2\cdot \:7k+3kk^2+3k\cdot \:7k\\\\\Rightarrow A=k^4+10k^3+21k^2$

Thus, the area of the rectangle is $k^4+10k^3+21k^2$ .

3 0

3 years ago

The expression that is equal to -10(4x – 5).

notka56 [123]

The best answer to your question would have to be -40x - 50

4 0

3 years ago

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre

Margaret [11]

In getting the area of and equilateral triangle, you must first consider that all of its sides are congruent and that is 3 inches, so the formula in getting the area is height form its base so in getting its height you must use the pythagorean theorem by dividing the triangle so the hypotenuse of it is 3 and the base of 1.5inches, so the height is 4.77 inches then the area is 7.15 sqr.inch

4 0

3 years ago