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2 years ago

Find the value of 3x

Mathematics

1 answer:

Anni [7]2 years ago

5 0

Answer:

270

Step-by-step explanation:

Since you have the value of x as 90

3x=3*90

3x=270

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What is the volume of the cylinder? Round to the nearest 10th.

nata0808 [166]

Answer:169.7

Step-by-step explanation:

To find the volume of a cylinder you can use the math formula πr^2H where r is the radius and H is the height. If you plug in the values you get π3^2(6) simplify 3^2 to get (9π)(6), you can multiply 9 by 6 to get 54 then multiply that by 3.1415 to get 169.65 which rounds to 169.7

6 0

3 years ago

Two cards are selected from a standard deck of 52 playing cards the first card is not replaced before The second card is selecte

spin [16.1K]

Answer:

1/2652

Step-by-step explanation:

1/52*1/51=1/2652

4 0

2 years ago

Read 2 more answers

The scores for a certain test of intelligence are normally distributed with mean 85 and standard deviation 11. Find the 90th per

jonny [76]

Answer:

99.1 is the 90th percentile of these scores.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 85

Standard Deviation, σ = 11

We are given that the distribution of score is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.90

$P( X < x) = P( z < \displaystyle\frac{x - 85}{11})=0.90$

Calculation the value from standard normal z table, we have,

$P(z \leq 1.282) = 0.90$

Putting values, we get,

$\displaystyle\frac{x - 85}{11} = 1.282\\\\x = 99.1$

Thus, 99.1 is the 90th percentile of these scores.

5 0

3 years ago

Laree is buying a car that costs 4,155. she has 1,575 and will borrow the rest from her parents. will payments of 225 per month

Natasha_Volkova [10]

The car cost $4,155 and she has $1,575 so $4,155-$1,575=$2,580as the balanced owed if she borrows the rest from her parents and has a one year to pay it off it will be paid off because her payments are $225 a month for one year at 225x12=$2,700 its a little over but it will be paid off

5 0

2 years ago

The area of a rectangle rug is represented by an irrational number. If the width of the rug is 2725,

musickatia [10]

Answer:

It would be B hope this helped

7 0

1 year ago