Pls help I don’t get this one (:

Mathematics

1 answer:

Korolek [52]3 years ago

5 0

Answer:

That is an alternate exterior angle.

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Simplify this expression (5)^ -5 (5)^ 7 please explain how you got the answer

Rina8888 [55]

Answer:

$( {5}^{ - 5} ) \times ( {5}^{7} ) \\ \\ \frac{ {5}^{7} }{ {5}^{5} } = {5}^{7 - 5} = {5}^{2}$

the answer is b. 25

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3 years ago

Sandy has several pitchers to hold lemonade for The School bake sale two pitchers can hold 64 ounces each and four pitchers can

anastassius [24]

320 is the total ounces her pitchers can hold.

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3 years ago

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The mother's age is 8 times her son's age. After 6 years, the age of the mother will be 9/2 times her son's age. The present age

Yakvenalex [24]

Answer:

son = 6 mother = 48

Step-by-step explanation:

Mother = m

son = s

m = 8s

m+6 = 9/2 * (s+6)

2(8s + 6) = 9(s +6)

16s + 12 = 9s + 54

16s - 9s = 54 - 12

7s = 42

s = 42/7 = 6 years old

so the mother is 8s = 8*6= 48 years old

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3 years ago

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Which equation is equivalent to √x^2+81 = x+10

jeka57 [31]

Keywords:

<em>equation, operations, equivalent, binomial, square root </em>

For this case we have an equation in which we must apply operations to rewrite it in an equivalent way. We must start by raising both sides of the equation to the square. Thus, we eliminate the square root of the left side of equality and finally solve the binomial of the right side of equality.

So we have:

$\sqrt {x ^ 2 + 81} = x + 10\\(\sqrt {x ^ 2 + 81}) ^ 2 = (x + 10) ^ 2\\x ^ 2 + 81 = (x + 10) ^ 2$