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tia_tia [17]
3 years ago
12

I Need Help with my homework. It’s due tomorrow and i don’t know anything about algebra

Mathematics
2 answers:
UkoKoshka [18]3 years ago
8 0
For the first question, all you have to do is substitute the values. for example g(x)=-5x+2 becomes g(-1)=-5(-1)+2  
ValentinkaMS [17]3 years ago
7 0
1a) -5(-1) + 2 = 7
1b) -5(-2) + 2 = 12
1c) -5(0) + 2 = 2
1d) -5(5) + 2 = -23

2a) 2(-3) + 2 = -4
2b) 2(6) + 2 = 14
2c) 2(-1) + 2 = 0
2d) 2(4) + 2 = 10

3a) (-4)^2 + 4(-4) - 1 = -1
3b) (8)^2 + 4(8) - 1 = 95
3c) (-1)^2 + 4(-1) - 1 = -4
3d) (1)^2 + 4(1) - 1 = 4

4a) 3(2)^2 - 5(2) = 2
4b) 3(-8)^2 - 5(-8) = 232
4c) 3(7)^2 - 5(7) = 112
4d) 3(-1)^2 - 5(-1) = 8

Basically, whatever number they give to you in parenthesis replaces x in the equation you’re given. Hope this helped!
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The number is 8

Step-by-step explanation:

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Find the sum: 28,35,42,49,56,63,70
lianna [129]

Answer:

343

Step-by-step explanation:

Big brain calculator work

28 + 35 + 42 + 49 + 56 + 63 + 70 = 343

5 0
2 years ago
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A road bike has a wheel diameter of 622 mm. What is the circumference of the wheel? Use 3.14 for pi
Ghella [55]

Answer:

Circumference ≅ 195 mm

Step-by-step explanation:

The circumference of a circle is equal to: 2*\pi *radius

Since Diameter = 2*radius we can replace that in the circumference equation giving us:

Circumference = \pi *Diameter

We know Diameter = 622 mm and pi = 3.14 so:

Circumference = \pi *Diameter = 3.14 * 622 mm = 195.308 mm

7 0
2 years ago
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HELP ON TIMER!!!
Law Incorporation [45]
I’d say the second one, the fourth one and the fifth one.

Hope it works :)
4 0
3 years ago
At the beach, 11% of people have white towels and 53% have blue towels. If
telo118 [61]

Answer:

36 percent.

Step-by-step explanation:

We have been given that 11 percent of people of the peach have white towels, and 53 percent have blue towels.

With this information, we can find the remaining percentage of people that have red towels.

Recall that the total percentage is always 100 percent.

lets make r for the percentage of people that have red towels.

You can solve it by changing it to fraction, decimal, or just keep it at percent.

I will show you all of the possible ways.

Percent:

11 percent plus 53 percent plus r =100 percent

combine the like terms, or add 11 plus 53 to simplify the equation.

You have 64 percent plus r =100 percent Our goal is to isolate r, so subtract both sides by 64 percent.

100-64 is 36 percent.

r=36 percent of people who have red towels.

With fractions.

Write it as 11/100 plus 53/100 plus r/100= 100/100.

Combine the fractions.

64/100 plus r/100=100/100.

Subtract both sides by 64/100.

You are left with r=36/100, 9/25, or 36 percent.

With decimals.

11 percent as a decimal is 0.11. Just move the decimal spot 2 times. In 11, since you can write it as 11.0, you move it to the right twice.

53 percent is 0.53.

r is r.

100 percent is 1.

0.11 plus 0.53 plus r=100

Combine or add 0.53 and 0.11. That is 0.64.

Subtract both sides by 0.64.

You get r to be 0.36 or 36 percent.

I hope this helps, and I hope you have a good day!

8 0
3 years ago
Read 2 more answers
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