2 years ago

66 is what percent of 55?

Mathematics

1 answer:

Gemiola [76]2 years ago

4 0

Answer: 66 is 120% of 55

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The variable q stands for a prime nnumber. Make a factor tree. Then write the prime factorization without expression

Deffense [45]

I have no clue sorry

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3 years ago

If f(x) = 5x + 40, what is f(x) when x = –5?

kakasveta [241]

First note that f(x) means the same thing as y. To solve for f(x) or y you need to plug in -5 for x and solve using the rules of PEMDAS

5(-5) + 40

-25 + 40

When x is -5 then y is 15

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3 years ago

The height of the tunnel at the center is 35ft, and the vertical clearance must be 21 ft at a point of 8ft from the center. Find

Zinaida [17]

Answer:

y=-0.215x^2+35

Step by Step:

Let, $h=0$ , $k=35$ , $x=8$ , $y=21$

We know that, the general equation of the parabola.

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

$\Rightarrow y=a(x-h)^2+k .........(i)$

Substitute the value of $h, k, x, y$ in equation $(i)$ and find the value of $a.$

$21=a(8-0)^2+35$

$\Rightarrow 21=a\times 8^2+35$

$\Rightarrow 21=64a+35$

$\Rightarrow 64a=21-35$

$\Rightarrow 64a=-14$

$\Rightarrow a=\frac{-14}{65}$

$\Rightarrow a=-0.215$

Hence, the equation of the parabola is:

$y=-0.215x^2+35$

8 0

3 years ago

-x=-15 Syep by step solution need

andrew-mc [135]

Answer:

x = 15

Step-by-step explanation:

-x = -15

x = -1 × (-15)

x = 15

6 0

2 years ago

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if the area of a triangular base prism is 11 cm² and the height of the prism is 12 cm, what is the volume of the prism?

Natasha2012 [34]

Answer:

132 cm²

Step-by-step explanation:

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2 years ago