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2 years ago

X-1/2*1/8=1/8 Find the value of x.

Mathematics

1 answer:

MA_775_DIABLO [31]2 years ago

7 0

Answer:

x = 3 / 16

Step-by-step explanation:

Simplify first:

x - 1 / 16 = 1 / 8

x = 3 / 16

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Solve for x assume that lines appear tangent are tangent

Anuta_ua [19.1K]

Answer:

Step-by-step explanation:

? = 1/2(230)

A 115°

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3 years ago

What is f(x) = 7x2 + 42x written in vertex form?

amid [387]

Answer:

$\boxed{\boxed{y = 7(x+3)^2-63}}$

Step-by-step explanation:

The general vertex form of parabola is,

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

where,

(h, k) is the vertex of the parabola.

The given function is,

$\Rightarrow f(x) = 7x^2 + 42x$

$\Rightarrow y = 7x^2 + 42x$

$\Rightarrow y = 7(x^2 + 6x)$

$\Rightarrow y = 7(x^2 + 2\cdot x\cdot 3)$

$\Rightarrow y = 7(x^2 + 2\cdot x\cdot 3+3^3-3^2)$

$\Rightarrow y = 7(x^2 + 2\cdot x\cdot 3+3^3)-7\cdot 3^2$

$\Rightarrow y = 7(x+3)^2-7\cdot 9$

$\Rightarrow y = 7(x+3)^2-63$

This is vertex form the given function.

7 0

3 years ago

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72 is equal to 80% of a number n. Write and solve and equation to find n. Write the percent as a decimal.

valentina_108 [34]

Well I'm not sure what the answer would be since I'm not that smart but I did get the answer of 90, I did this by dividing 72 by 80 which equals .9 and I multiplied that by 100 and got 90.

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3 years ago

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144 coins are divided equally among some

nalin [4]

Answer:

Consider the number of children to be x.

So, 144 coins were divided amongst x children.

For x-3 children, each child would have 16 coins

So, (x-3)*16=144

Solving for x, x-3=144/16

or x-3=9

or x=9+3=12

Answer is 12

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3 years ago

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nikdorinn [45]

Answer:

60miles

Step-by-step explanation:

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3 years ago

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