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Helen [10]
3 years ago
7

Please help fast please please​

Mathematics
2 answers:
konstantin123 [22]3 years ago
8 0

Answer:

27

12

3

0

3

12

27

Step-by-step explanation:

y=3x^2

JUST PLUG IN X

PSYCHO15rus [73]3 years ago
5 0
I got

81,36,9,0,3,6,9
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Look at the linear equation below.
RoseWind [281]
(-5,1) hope this helps you
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3 years ago
Solve this equation for X. If necessary, round your answer to the nearest integer<img src="https://tex.z-dn.net/?f=%282x%20%2B%2
Hatshy [7]

Answer

x = 1

Explanation:

Given the following equation

\begin{gathered} (2x+2)^{\frac{1}{2}}=\text{ -2} \\ \text{According to the law of indicies} \\ x^{\frac{1}{2}}\text{ = }\sqrt[]{x} \\ (2x+2)^{\frac{1}{2}}\text{ = }\sqrt[]{(2x\text{ + 2)}} \\ \text{Step 1: Take the square of both sides} \\ \sqrt[]{(2x\text{ + 2) }}\text{ = -2} \\ \sqrt[]{(2x+2)^2}=-2^2 \\ 2x\text{ + 2 = 4} \\ \text{Collect the like terms} \\ 2x\text{ = 4 - 2} \\ 2x\text{ = 2} \\ \text{Divide both sides by 2} \\ \frac{2x}{2}\text{ = }\frac{2}{2} \\ x\text{ = 1} \end{gathered}

Therefore, x = 1

5 0
1 year ago
Read 2 more answers
Write the equation of a sine function that has the following characteristics.
slava [35]

Answer:

\displaystyle y = 7\sin(9\pi(x +   {1}/{4}) )

Step-by-step explanation:

we are given

  • Amplitude:7
  • Period:9π
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remember that,

\displaystyle y = A \sin(B(x + C) )+ D

where A is the Amplitude

B is the Period

C is the Phase shift

D is the vertical shift

note that, since D isn't given we'll take it 0

altogether substitute:

\displaystyle y = 7\sin(9\pi(x +   {}^{1}/_{4}) )+ 0

hence,

our equation is

\displaystyle y = 7\sin(9\pi(x +   {}^{1}/_{4}) )

and we are done!

5 0
3 years ago
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Simplify:<br> 4(4y-7y^{2})-9(5y+2)
Simora [160]

Answer:

Hello! -28 y ^2 -29y -18 should be your simplified answer :)

Step-by-step explanation:

Hope this helps!

Have a nice day!♥

4 0
3 years ago
What is 13 9/2 ÷ 2 9/12 = ?
anyanavicka [17]

Answer:

6 4/11

Step-by-step explanation:

4 0
2 years ago
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