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3 years ago

15

Which expression gives the same result as????

1 answer:

zimovet [89]3 years ago

5 0

The answer is A.

You are raising the fraction 1/3 to the value of N then multiplying by 5, having the 5 in front of the sum is still multiplying it by 5.

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The axis of symmetry for a function in the form f(x) = x2 + 4x − 5 is x = −2. What are the coordinates of the vertex of the grap

Studentka2010 [4]

Answer:

D) $(-2,-9)$

Step-by-step explanation:

<u>Vertex Form of a Vertical Parabola:</u>

$y=a(x-h)^2+k$

Vertex -> $(h,k)$

Axis of Symmetry -> $x=h$

Vertical Scale Factor -> $a$

To turn $f(x)=x^2+4x-5$ into vertex form, we need to complete the square on the right side
Therefore, if $f(x)=0$ , then $0+9=x^2+4x-5+9$ completes the square on the right side
This becomes $9=(x+2)^2$
This means that our function in vertex form is $f(x)=(x+2)^2-9$

Therefore, the vertex of the graph is $(h,k)=(-2,-9)$ .

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3 years ago

Lisa’s dog has 4 squeaky toys. Two thirds of the dogs toys are squeaky. How many dog toys does Lisa’s dog have in all?

lys-0071 [83]

Answer:

6 dog toys.

Step-by-step explanation:

If 2/3 of the total dog toys are squeaky, 4 is two thirds of 6, meaning Lisa has 6 dog toys.

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3 years ago

Want Money. Answer thisss below.

Mashutka [201]

Answer: 2:3

Step-by-step explanation:

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3 years ago

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1/2(3/4n+ 9) and 2(12 + 8x) -3(4x -9) i need help with these two

Ghella [55]

I dont know if this is right but the answer to 2(12+8x)-3(4x-9) might be 4x+51?

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2 years ago

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elena-14-01-66 [18.8K]

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