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NeTakaya
3 years ago
7

Solve 3(k−4)=18.(1 point)

Mathematics
2 answers:
Lena [83]3 years ago
8 0

Answer:

K=10

Step-by-step explanation:

So first distribute

3x-12=18

add 12 on both sides

3x=30

Divide 3 on each side

x=10

myrzilka [38]3 years ago
8 0

Answer:

10

Step-by-step explanation:

1. 3(k-4)=18

2. 3k-12=18

3. 3k=30

4. k=10

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Find the slope and the y- intercept of the line y=2x-6
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Answer:

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Step-by-step explanation:

we know that

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y=mx+b

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b is the y-intercept or initial value (value of y when the value of x is equal to zero)

In this problem we have

y=2x-6

therefore

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<u><em>Verify</em></u>

For x=0

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3 years ago
Rewrite the quadratic function in vertex form.<br> Y=2x^2+4x-1
Fantom [35]

Answer:

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Step-by-step explanation:

The vertex form of an equation of a parabola:

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

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We have

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We must use the formula: (a+b)^2=a^2+2ab+b^2\qquad(*)

2\left(x^2+2(x)(1)-\dfrac{1}{2}\right)=2\bigg(\underbrace{x^2+2(x)(1)+1^2}_{(*)}-1^2-\dfrac{1}{2}\bigg)\\\\=2\left((x+1)^2-1-\dfrac{1}{2}\right)=2\left((x+1)^2-\dfrac{3}{2}\right)

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5 0
3 years ago
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Minchanka [31]
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5 0
3 years ago
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Natasha2012 [34]
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</span><span>
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3 years ago
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Keith_Richards [23]
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