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2 years ago

What is the vertex of the graph of the function f(x) = x2 + 8x − 2 ?

Mathematics

2 answers:

yan [13]2 years ago

8 0

It’s -4,-18 the is for sure the right answer

scoundrel [369]2 years ago

7 0

Thé vertex of the graph of the following function f(x)=x2+8x-2 is (-4,-18).

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Rosa made a mosaic wall using 42 black tiles, 35 blue tiles, and 23 red tiles. Write a percent to represent the number of red ti

sergejj [24]

First you have to figure out the total.
42+35+23= 100
So plug it in.
23/100
23%
Your answer is 23%.
Hope this helped ^-^

8 0

2 years ago

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A sphere has a diameter of 24 units. What is its volume in cubic units?

DiKsa [7]

Hello!

The equation to find the volume of a sphere you use the equation

$\frac{4}{3} \pi r^{3}$

r is radius which is half the diameter

put in 3.14 for pi and 12 for r

$\frac{4}{3} *3.14* 11^{3}$

This gives us the answer of 7234.56 cubic units

Hope this helps!

4 0

2 years ago

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A hole the size of a photograph is cut from a red piece of paper to use in a picture frame.

mario62 [17]

Answer:

D. 47 square units

Step-by-step explanation:

The area of the piece of red paper after the hole for the photograph has been cut is the difference between the area of large square and are of small square.

Area of large square:

The length of the side of large square is

$EF=|-4-4|=8\ units$

Area of large square $=8^2=64\ un^2.$

Area of small square:

The length of the side of large square is

$AB=\sqrt{(-3-(-2))^2+(-2-2)^2}=\sqrt{(-1)^2+(-4)^2}=\sqrt{1+16}=\sqrt{17}\ units$

Area of small square $=\sqrt{17}^2=17\ un^2.$

Difference:

$64 \ un^2-17\ un^2=47\ un^2$

6 0

2 years ago

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What is the daily periodic rate for a credit card with an APR of 14.99%? Leave your answer as a percent rounded to 4 decimal pla

Cerrena [4.2K]

Answer:

the daily periodic rate is 0.0411%

Step-by-step explanation:

Given that

The Annual percentage rate is 14.99%

We need to find out the daily periodic rate for the credit card

As we know that

Daily periodic rate = annual percentage rate ÷ 365 days

= 14.99% ÷ 365 days

= 0.0411%

Hence, the daily periodic rate is 0.0411%

8 0

2 years ago

Which ratio is proportional to 18/28 ? Help me plzzzz i will give brainliest

maks197457 [2]

Answer:

18/21 = 30/35

Step-by-step explanation:

so the problem says 18/21 so if that's the correct ratio to proportion to the answer would be. 30/35. the reason is that you can divide 18 and 21 by 3 to get 6/7 then if you multiply by 5 you get 30/35. Dividing and multiplying both the denominator and numerator keeps the ratio proportional.

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2 years ago