7th grade math help me plzzzzzzz

2 answers:

6 0

Answer:

1. -60

2. 32

Step-by-step explanation:

Oksanka [162]3 years ago

6 0

1) 6 x -10 = -60
2)-8 x -4 = 32 positive because two negatives makes it positive

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Rom4ik [11]

Answer:

(5x + 2) - (-9x - 2)

O 11x2 – 5x + 8

14x + 4

–6x2 + 8x 7

-X2 + 6

Step-by-step explanation:

7 0

3 years ago

solong [7]

Answer:

Step-by-step explanation:

A (+) and a (-) will always be a minus, so 48+(-22) becomes 48 - 22, which equals 26.

7 0

3 years ago

gregori [183]

Answer:

$\frac{18√2}{√3}$

Step-by-step explanation:

The lengths of the sides of a 30-60-90 triangle are in the ratio 1:2:√3.
The lengths of the sides of a 45-45-90 triangle are in the ratio 1 : 1 : √2
We can get the length of the longest side of the bottom triangle is 9×2÷√3 = $\frac{18}{√3}$
And based on the theory shown on the 2nd step, we can get x (the length of the longest side of the upper triangle) is $\frac{18}{√3}$ x√2