Answer:
<h2>(-1) + (+8) = 7</h2>
Step-by-step explanation:
(+)(+) = (+)
(-)(+) = (+)(-) = (-)
(-)(-) = (+)
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(-1) + (+8)= (-1) + 8 <em>use the commutative property a + b = b + a</em>
= 8 + (-1) = 8 - 1 = 7
Answer:
(3x - 5)²
Step-by-step explanation:
When we expand (3x - 5)², we get:
(3x - 5) (3x - 5)
When we multiply, we get:
9x² - 30x + 25
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Have a great summer :)
Answer:
8 1/4
Step-by-step explanation:
Solution by Formulas
converting mixed numbers to fractions, our initial equation becomes,
−11 -9
3×4
Applying the fractions formula for multiplication,
−11×−9
3×4
=99
12
Simplifying 99/12, the answer is
=814
The ratio 21:14 when divided by 7 on each side, is the smallest ratio that has the same value as 21:14. this becomes 3:2
then multiply both sides by a few different numbers on both sides each ,
for example, 3:2 is the same as
6:4 (3:2 times 2)
9:6 (3:2 times 3)
12:8 (3:2 times 4)
15:10 (3:2 times 5) and so on
the ratio of the right number I
divided by the left on all of them is 1.5
so,
14/10 equals 1.4 (nope)
8/4 equals 2 (nope)
9/6 equals 1.5 (yay)
12/21 equals 0.57 (Lol)
So your answer is 9:6
Answer:
-7
Step-by-step explanation:
8x - 2 = 7x - 9
8x - 2 - 7x = 7x - 9 - 7x
x - 2 = -9
x - 2 + 2 = -9 + 2
x = -7