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Andrews [41]
3 years ago
8

I've wasted 42 points already. Can someone PLZ just answer my Question and stop wasting my points. PLz, this is due. I need help

Mathematics
1 answer:
Misha Larkins [42]3 years ago
5 0

Step-by-step explanation:

You can put the value of x into the equation to solve for y. Hopes this works.

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Sweatshirts at the discount store are on sale for 30% off the original price. If a sweatshirt
kobusy [5.1K]
A.) the discount is $9
B.) the new price is $21

Work:
30% is turned to .30
so, $30 x .30 is $9.
that’s how much is taken off.
3 0
3 years ago
Help me and will give brainlessness
Vika [28.1K]

Rounding is simple:

  • If the previous digit is 5-9, round the number to the left of it up a number. If it is 4-0, leave the number to the left of it as it is.

For 82.98, we can round 82 to 83, since 82 is the whole number and the previous digit is 9 (so we round up).

For 169.645, we scratch off 45. Since 6 is in the tenth's place and the previous digit of it is 4, we leave it at 169.64.

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8 0
3 years ago
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If x= –4 and y= 3 , what is the value of x–3y2 ?
Tpy6a [65]

Answer:

-31

Step-by-step explanation:

(-4)-3(3)^2

-4-3(9)

-4-27=-31

5 0
3 years ago
Read 2 more answers
What is the answer to 4t−t+2
Alexeev081 [22]

Answer:

3t+2

Step-by-step explanation:

First, we focus on the part with the "t" variable. Then we subtract the values with variables which gets us 3t. Finally, we can't do anything with the +2, so our solution is 3t+2.

6 0
3 years ago
Please help me , at least do one and explain it please .
Len [333]

9514 1404 393

Answer:

  1. 113.0 cm²
  2. 2464.0 in²
  3. 95.0 ft²

Step-by-step explanation:

1. The area of a circle is given by the formula ...

  A = πr² . . . . . where r is the radius

The radius is shown as 6 cm, so the area is ...

  A = (3.14)(6 cm)² = 113.0 cm²

__

2. The radius is shown as 28 in. We note that this is a number divisible by 7, so we choose 22/7 for π.

  A = (22/7)(28 in)² = 2464 in² . . . . see comment

__

3. The radius is half the diameter, so is 11/2 = 5.5 ft. Then the area is ...

  A = (3.14)(5.5 ft)² = 95.0 ft²

_____

<em>Additional comment</em>

If you use a more exact value of π for problem 2, the area is 2463.0 in². If you use 3.14 as the value of π, the area rounds to 2461.8 in². For these values of pi (3.14 or 22/7), the answer is only good to about 3 significant digits. 2464 has more significant digits, so digits beyond the first 3 may be in error.

7 0
2 years ago
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