2 years ago

Giving brainliest !! easy

Mathematics

2 answers:

lora16 [44]2 years ago

4 0

31.4 bc 3.14 x 2 x 5

aliina [53]2 years ago

4 0

Answer:

31.4

Step-by-step explanation:

You might be interested in

If c varies directly as (r + 1) and c = 8, when r= 3, calculate the value of r when c= 20.

Aneli [31]

Answer:

r = 9

Step-by-step explanation:

Given that c varies directly as (r + 1) then the equation relating them is

c = k(r + 1) ← k is the constant of variation

To find k use the condition c = 8 when r = 3, then

8 = k(3 + 1) = 4k ( divide both sides by 4 )

2 = k

c = 2(r + 1) ← equation of variation

When c = 20, then

20 = 2(r + 1) ← divide both sides by 2

10 = r + 1 ( subtract 1 from both sides )

9 = r

5 0

2 years ago

Read 2 more answers

Gavin earned $12.58 and Niko earned $9.35 last week doing chores. They

koban [17]

Answer:

13.07

Step-by-step explanation:

Subtraction dude.

7 0

1 year ago

Simplify the following <br> (-4r^5)(2r^8)

jolli1 [7]

Multiplying a - and a + equals a - , -8r18

8 0

2 years ago

PLEASE HELP ME WITH THIS

Nataly [62]

Answer:4/10

Step-by-step explanation:

6 0

2 years ago

The weights of college football players are normally distributed with a mean of 200 pounds and a standard deviation of 50 pounds

belka [17]

Answer:

$P(170$

And we can find this probability with this difference:

$P(-0.6$

Step-by-step explanation:

Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:

$X \sim N(200,50)$

Where $\mu=200$ and $\sigma=50$

We want to find the following probability:

$P(170$

And we can use the z score formula given by:

$z=\frac{x-\mu}{\sigma}$

And using this formula we got:

$P(170$

And we can find this probability with this difference:

$P(-0.6$

8 0

2 years ago

Giving brainliest !! *easy*

Giving brainliest !! easy