MATHEMATICS HIGH SCHOOL

Find the circumference and area of each circle. PLEASE HELP!

Answers

Answer 1

Answer:

Answer:

There are so many!

For circumference use = 2 pi r

For area use = pi r²

I have told only formula, else you may lack practice. try to solve yourself

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Write expression in standard form 5x-(-4+-2x)

Answers

Answer: 5x+4+2

Step-by-step explanation:

5x-1(-4+2)

multiply the -1 by the -4 and 2

5x+4+2

An online media service offers video and music downloads. Each download of a song costs $1. Each download of a video costs 5 times as much as the song download. You have a credit of $70. How many songs can you purchase after buying 12 videos?

Answers

Answer:

6.3

Step-by-step explanation:

You want to add 1, 5, and 70 up. Then you would get 76. Next you want to divide 76 into 12. And there you go, 6.3 is the answer

(I hoped this helped. This was a bit confusing to me and difficult but i wanna try to be useful for once lol..)

Answer:

5.83

Step-by-step explanation:

70 / 12

I need helps please and ty

Answers

Answer:

y=7x+4

Step-by-step explanation:

Values of x and y satisfy the equation y=7x+4

Evaluate 4r(t – v) if r = 3, t = 5, and v = 2.

Answers

4r(t-v) r=3, t=5, and v=2
4*3(5-2)
12(3)
36

4r(t – v) if r = 3, t = 5, and v = 2.

4.3(5-2) = 12.3 = 36

Which of the number(s) below are potential roots of the function?p(x) = x4 + 22x2 – 16x – 12

Answers

$Potential\ roots\ of\ the\ function:\n\np(x)=x^4+22x^2-16x-12\ are:\n\n\{\pm1;\pm2;\pm3;\pm4;\pm6;\pm12\}$

Answer:

6,1,3

Step-by-step explanation:

Jeremy is 5 years younger than his older sister. His older sister is 9 years older than his younger sister. The total of their age is 49. Write and solve an equation to find the ages of Jeremy and his sisters. I need help please!

Answers

Jeremy=x
Older sister=x+5
younger sister=x+5-9 or x-4
x+(x+5)+(x-4)=49
combine like terms
3x+5-4=49
3x+1=49
subtract 1 from both sides
3x=48
divide both sides by 3
x=16
Jeremy=16
Older sister=16+5=21
younger sister =16-4 or 16+5-9=12
J=16
OS=21
YS=12

Jeremy - x
Older sister - x+5
Younger sister - x-4
3x+1=49
3x=48
X= 16

Jeremy: 16
Older sister: 21
Younger sister: 12

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