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Ilya [14]
2 years ago
12

If you know the radius, r, of a circle, what do you multiply rby to get the circle's CIRCUMFERENCE?

Mathematics
1 answer:
KengaRu [80]2 years ago
7 0

Answer:

C=2 x pi x radius

Step-by-step explanation:

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3X-1=4 THEN 2X= ...?
strojnjashka [21]
3x=4+13x=5x=5/32x=2* 5/32x=10/3
8 0
2 years ago
The total cost, in dollars, to order x units of a certain product is modeled by C(x)=5x²+320 . According to the model, for what
lora16 [44]

Answer:

The minimum cost per unit is obtained for an order of 8 units.

Step-by-step explanation:

Since the total cost is modeled by;

C(x)=5x²+320

Then;

1 unit costs; C(x)=5(1)²+320 = 325

cost per unit 325/1 = 325

8 units costs; C(x)=5(8)²+320 = 640

cost per unit = 640/8 = 80

80 units costs; C(x)=5(80)²+320 = 32320

Cost per unit = 32320/80 = 404

The minimum cost per unit is obtained for an order of 8 units.

7 0
2 years ago
Reed is currently r years old. Which expression represents his age seven years from now
lyudmila [28]

Answer: r+7

Whatever his age is now, we add 7 to it. So we simply add 7 to r getting r+7.

Example: Say he is 10 years old now

r = 10

r+7 = 10+7 = 17

meaning he will be 17 seven years from now

7 0
2 years ago
Which of the following groups of terms can be used interchangeably when working with normal distributions?
BARSIC [14]

Answer:

The correct answer is D) areas, probability, and relative frequencies

Step-by-step explanation:

This is because each of these terms refers to an amount of space surrounding the mean on the normal distribution curve. Each of them let's us know how likely a spot is to have a value within it.

The z-score would not fit this as it identifies the value and how far away a single spot on the graph would be.

5 0
3 years ago
(-8+1.5)x4/5 <br><br> Help please
fenix001 [56]

Answer:

-5.2

Step-by-step explanation:

-8+1.5 = -6.5

-6.5 * 4/5 = -6.5 * 0.8 = -5.2

7 0
2 years ago
Read 2 more answers
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