3 years ago

Erin received the following scores on her past four spelling test

Mathematics

1 answer:

Mice21 [21]3 years ago

4 0

Not sure either I need the question

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Simplify: 64 ÷ 8 + 6 (2) A. 23 B. 20 C. 17

Iteru [2.4K]

Answer:

B. 20

Step-by-step explanation:

64 ÷ 8 + 6(2)

64 ÷ 8 + 12

8 + 12

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3 years ago

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Factor the expression completely. 25x2-65x - 30

Anton [14]

Answer:

$\large\boxed{25x^2-65x-30=5(x+3)(5x-2)}$

Step-by-step explanation:

$25x^2-65x-30=5(5x^2-13x-6)\\\\=5(5x^2-15x+2x-6)=5\bigg(5x(x-3)+2(x-3)\bigg)\\\\=5(x-3)(5x+2)$

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3 years ago

2x+8=y if x=6 then what is the value of y?

Norma-Jean [14]

Answer:

Step-by-step explanation:

If x = 6 the problem should look like this:

2 (x) + 8 = y -> place the 6 where x is.

2 (6) + 8 = y -> remember () means to multiply.

2 times 6 , add 8 , equals y

12 + 8 =y -> 12 +8 equals 20

20 = y

I hope this helps!!

7 0

2 years ago

What is the quadratic formula??

Ahat [919]

Hello!

The quadratic formula is

$x = \frac{-b + and - \sqrt{b^{2} - 4ac } }{2a}$

the + and - means that for one solution you add them and for the other you subtract them

Hope this helps!

3 0

4 years ago

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Please help me 60 points

djyliett [7]

I am 1000000% certain it is option C.

4 0

4 years ago

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