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4 years ago

Everyday at lunchtime at least 53 people buy food from a food truck, write an inequality

Mathematics

1 answer:

Flauer [41]4 years ago

8 0

X is equal or greater than 53.

x CAN BE:
x = 53
x > 53

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10. The length of the radius of a bicycle wheel is 14 inches. Which of the following is closest to the circumference of the whee

Elina [12.6K]

Answer:

87.92

Step-by-step explanation:

you have your radius 14 inches to get the answer is

1: pie is 3.14

2: circumference is 2× 3.14×14

3: 3.14×14

4: 43.96 × 2

5 0

3 years ago

Suppose the population standard deviation is σ = 5 , an SRS of n = 100 is obtained, and the confidence level is chosen to be 98%

beks73 [17]

Answer:

1.165.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.98}{2} = 0.01$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.01 = 0.99$ , so $z = 2.33$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

In this problem, we have that:

$\sigma = 5, n = 100$ . So

$M = z*\frac{\sigma}{\sqrt{n}}$

$M = 2.33*\frac{5}{\sqrt{100}} = 1.165$

So the correct answer is:

1.165.

6 0

4 years ago

A bag of marbles had 18 green marbles and the rest were blue. For a game, 5/6 of the 18

stepan [7]

Answer:

A 5 B 2 C3

Step-by-step explanation:

6 0

4 years ago

Sierra’s ice cream shop made $45 before she had to close early when the power went out. She realized she lost Two-thirds of a do

lozanna [386]

Answer:

Sierra's profit was $41.

Step-by-step explanation:

Sierra realized she lost two-third of a dollar each hour when the shop was closed.

The expression that models this situation is, ............. (1)

Now, we have to calculate Sierra's profit if the shop was closed for 6 hours.

So, putting h = 6 hours in the equation (1) we get,

dollars.

So, Sierra's profit was $41. (Answer)

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

The ratio of the sides of a triangle is 8:15:17. Its perimeter is 480 inches. Find the length of each side of the triangle.

andreev551 [17]

Answer:

96:180:204 inches

Step-by-step explanation:

4 0

3 years ago