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Juliette [100K]
3 years ago
14

Nancy found that x = 1 is one solution to the quadratic equation (x + 2)2 = a. What is the value of a?

Mathematics
2 answers:
solniwko [45]3 years ago
4 0

ANSWER

a=9

EXPLANATION

The given quadratic equation is

{(x + 2)}^{2}  = a

If x=1 is a solution, then it must satisfy this equation:

{(1 + 2)}^{2}  = a

{3}^{2}  = a

a = 9

Therefore the value of 'a' is 9

Cerrena [4.2K]3 years ago
3 0

Answer:

answer is A

Step-by-step explanation:

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3 years ago
6th-grade math, fill out the table! :)
Svetradugi [14.3K]

Answer:

21 wins, table is attached.

Step-by-step explanation:

The ratio of 7 wins to 2 losses is 7:2. A ratio is just saying that every time one value is increased by 7, the other is increased by 2.

So we can fill out the table, in every iteration wins increases by 7 and losses increases by 2.

When we fill this out, we find that when losses is 6, wins is 21, so when you have 2 losses you have 21 wins.

Hope this helped!

4 0
3 years ago
Find the value of X. Write your answer in simplest form.<br>What does X equal? ​
drek231 [11]

<u>Given</u>:

Given that the figure of similar triangles.

The altitude of the triangle is x.

The length of the left part is 30.

The length of the right part is 15.

We need to determine the value of x.

<u>Value of x:</u>

The value of x can be determined using the geometric mean theorem.

Thus, we have;

\frac{\text { left }}{\text { altitude }}=\frac{\text { altitude }}{\text { right }}

Substituting the values, we have;

\frac{30}{x}=\frac{x}{15}

Cross multiplying, we get;

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Taking square root on both sides, we have;

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7 0
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Answer: 36 is the correct answer.

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Step-by-step explanation: I hope this helped you out.

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Step-by-step explanation:

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