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3 years ago

14

What are the coordinates of the vertes of the parabola described by the equation below?

1 answer:

dangina [55]3 years ago

3 0

Answer: D. ( -7, - 2 )

Step-by-step explanation:

Rewrite this in vertex form and use this to find the vertex. ( h, k )

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What isx/2 = 2x/4 = 5 over 8

Mashutka [201]

X/2 the X is a secret number =2x/4 = 5/8. First find out what is 5 times 8=40 Now you have 40. Next multiply 2 times 4=8 Now 8 times what equals 40 or 40 divide by 8 and that equals 5 so X is 5 now it should look like 5/2=2 5/4=5/8 (Hope I helped if I didn't may God be with you for more help)

7 0

3 years ago

A regular square pyramid has base edges of length 16 and its lateral faces are inclined 30° to the base of the pyramid. What is

Helga [31]

Answer:

1) $h=\frac{8\sqrt{3}}{3}\ units$

2) $V=\frac{2,048\sqrt{3}}{9}\ units^3$

Step-by-step explanation:

Part 1) Find the height of the pyramid

we know that

$tan(30^o)=\frac{h}{(b/2)}$

where

h is the height of the pyramid

b is the length side of the square base

we have

$tan(30^o)=\frac{\sqrt{3}}{3}$

$b=16\ units$

substitute

$\frac{\sqrt{3}}{3}=\frac{h}{(16/2)}$

$\frac{\sqrt{3}}{3}=\frac{h}{8}$

$h=\frac{8\sqrt{3}}{3}\ units$

Part 2) Find the volume of the pyramid

we know that

The volume of the pyramid is equal to

$V=\frac{1}{3} Bh$

where

B is the area of the square base

h is the height of the pyramid

we have

$B=(16^2)=256\ units^2$

$h=\frac{8\sqrt{3}}{3}\ units$

substitute

$V=\frac{1}{3} (256)(\frac{8\sqrt{3}}{3})$

$V=\frac{2,048\sqrt{3}}{9}\ units^3$

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3 years ago

Rita deposits $800 into an account that pays simple interest at a rate of 3% per yearHow much interest will she be paid in the f

grin007 [14]

Answer: $72

Step-by-step explanation:

Simple interest (I) is calculated as Principal × Rate × Time.

From the question, Principal = $800

Rate =3% = 3/100= 0.03

Time =3 years

Slot in the values into the formula;

I = 800 x 0.03 x 3

I= $72

I hope this is clear

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3 years ago

How much is 1 in 100,000,000 as a percentage

Morgarella [4.7K]

Answer:

The answer is 0.000.000.01

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3 years ago

One day, Timmy works 4 hours and makes an additional $50 in tips. Another day, he works 6 hours and gets an additional $70 in ti

7nadin3 [17]

Answer:

$8.50/h

Step-by-step explanation:

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3 years ago

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