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stich3 [128]
3 years ago
8

Can someone explain how to answer this

Mathematics
1 answer:
Murljashka [212]3 years ago
8 0

Answer:

You add up the perimeter and divide by how many sides there are

Step-by-step explanation:


You might be interested in
Which equation involves a prime quadratic and cannot be solved by factoring? A. x2 + 5x − 4 = 0 B. x2 − x − 6 = 0 C. x2 + 3x − 4
Damm [24]

Answer:

Option A

Step-by-step explanation:

We can try to factorize all the options one by one.

For A:

x^{2} +5x-4\\=> x^{2}+4x+x-4\\=>x(x+4)+1(x-4)

We can see that the quadratic expression cannot be solved by factorization as the factors at the end of factorization are not equal in both brackets. So Option A is the correct answer for the given question.

Moreover we can also note that all the other quadratic expressions can be factorized ..

8 0
3 years ago
What is the product of (5× + 1)(5x - 1)?
padilas [110]

we are given

(5x + 1)(5x - 1)

we can distribute it

5x*5x-1*5x+1*5x-1*1

25x^2-5x+5x-1

now, we can simplify it

25x^2-1...............Answer

6 0
3 years ago
Help Me please11111111
Y_Kistochka [10]

Answer:

The first option im pretty sure

Step-by-step explanation:

6 0
2 years ago
Help me please. im failing
Inessa05 [86]

Answer:

Area = 31.5 units^2

Step-by-step explanation:

7 x 3 = 21

Area of triangle is (height x base) / 2

(3 x 7) / 2 = 10.5

21 + 10.5 = 31.5

5 0
3 years ago
Read 2 more answers
Solve by taking the square root of both sides. 3(x+4)^2-24=0
VARVARA [1.3K]
<span>3(x+4)^2-24=0
</span>
<span>3(x+4)^2 = 24
</span>
<span>(x+4)^2 =  24/3
</span>
<span>(x+4)^2 = 8
</span><span>
</span><span>(x+4)² = (2√2)² ⇒ x+4 = 2√2 ⇒ x = 2√2 - 4
</span>


6 0
3 years ago
Read 2 more answers
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