3 years ago

You moved 7 units left, 8 units up, and ended at point W

Mathematics

1 answer:

Alenkinab [10]3 years ago

6 0

Answer:

C. (8,1)

Step-by-step explanation:

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Find the slope of the lines graphed please help

Andre45 [30]

Answer:

Slope is -8/5

Step-by-step explanation:

You can count from the dot at (-1, 4) to the dot at (4, -4), using rise over run, and get 8 down and 5 right.

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3 years ago

A function has the function rule y = x - 7. If the input is 4, what is the output?

Alex_Xolod [135]

If you want to evaluate a function at a specific input, you have to substitute the generic variable with that specific value.

So, if you substitute "x" with "4", your function will output

$y=4-7=-3$

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3 years ago

Can someone help me please?

Oksana_A [137]

Hello again
It’s B I think sorry if it’s wrong

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3 years ago

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1. The formula for the volume of a cone is

Andre45 [30]

Answer:

$r=\sqrt{\frac{3V}{\pi\ h}}$

Step-by-step explanation:

The volume of cone is given by:

$V=\frac{1}{3}\pi\ r^2\ h$

where $r$ is the radius of the base and $h$ is the height of the cone.

We need to solve for $r$

we have $V=\frac{1}{3}\ \pi\ r^2\ h$

Multiplying both sides by 3 to remove $\frac{1}{3}$

⇒ $3\times V=3\times \frac{1}{3}\ \pi\ r^2\ h$

⇒ $3V=\pi\ r^2\ h$

dividing both sides by $\pi\ h$

⇒ $\frac{3V}{\pi\ h}=\frac{\pi r^2 h}{\pi\ h}$

⇒ $\frac{3V}{\pi\ h}=r^2$

Taking square root both sides:

⇒ $\sqrt{\frac{3V}{\pi\ h}}=\sqrt{r^2}$

⇒ $\sqrt{\frac{3V}{\pi\ h}}=r$

∴ $r=\sqrt{\frac{3V}{\pi\ h}}$

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3 years ago

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You are standing 350 feet away from a skyscraper that is 750 feet tall. What is the angel of elevation from you to the top of th

ipn [44]

$tan\ \alpha = \frac{350}{750} = \frac{7}{15} \approx0.4667\ \ \ and\ \ \ \alpha$

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3 years ago