All categories

3 years ago

What is the solution to the equation 4 + V2y = 6? O y= 1 O y = 4 O y= 500 O y= 2000

Mathematics

1 answer:

FrozenT [24]3 years ago

6 0

Answer:

y=1

Step-by-step explanation:

because 2×1=2 and when you add 4 to it you will get 6

You might be interested in

Can anybody help with this

iris [78.8K]

100 =d

your welcome lol

8 0

3 years ago

Find the standard deviation of the following data. Round your answer to one decimal place. x 0 1 2 3 4 5 P(X

lbvjy [14]

Answer:

$\sigma = 1.8$

Step-by-step explanation:

Given

$\begin{array}{ccccccc}x & {0} & {1} & {2} & {3} & {4}& {5} \ \\ P(x) & {0.2} & {0.1} & {0.1} & {0.2} & {0.2}& {0.2} \ \end{array}$

Required

The standard deviation

First, calculate the expected value E(x)

$E(x) = \sum x * P(x)$

So, we have:

$E(x) = 0 * 0.2 + 1 * 0.1 + 2 * 0.1 + 3 * 0.2 + 4 * 0.2 + 5 * 0.2$

$E(x) = 2.7$

Next, calculate E(x^2)

$E(x^2) = \sum x^2 * P(x)$

So, we have:

$E(x^2) = 0^2 * 0.2 + 1^2 * 0.1 + 2^2 * 0.1 + 3^2 * 0.2 + 4^2 * 0.2 + 5^2 * 0.2$

$E(x^2) = 10.5$

The standard deviation is:

$\sigma = \sqrt{E(x^2) - (E(x))^2}$

$\sigma = \sqrt{10.5 - 2.7^2}$

$\sigma = \sqrt{10.5 - 7.29}$

$\sigma = \sqrt{3.21}$

$\sigma = 1.8$ --- approximated

5 0

3 years ago

Jack collected 31.1 pounds of cans to recycle and plans to collect 5.9 more pounds each week. Write an equation in slope-interce

butalik [34]

Answer:36.10

Step-by-step explanation: add 31+5= 36 the other one 1 +9 = 10 that's the answer please mark me as brainlest

8 0

2 years ago

How are 1/4 of 12 and 12 divided by 4 related????

Jobisdone [24]

Both expressions are related because 12 divided by 4 equals to 3, and 1/4 of 12 equals to 3 too.

3 0

3 years ago

A popular ride-sharing app charges an

Nana76 [90]

Answer:

2.20

Step-by-step explanation:

2.20

6 0

3 years ago