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2 years ago

8

The total surface area of a hemisphere is 300cm2. What is the surface area of the sphere having equal radius to the hemisphere.

1 answer:

raketka [301]2 years ago

7 0

Answer:

400cm²

Step-by-step explanation:

the surface area of the sphere =

4/3 x The total surface area of a hemisphere

=> 4/3 x 300 = 400cm²

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A researcher records the odometer reading and age of used Hondas. What kind of correlation is likely to be obtained for these tw

tresset_1 [31]

Using the concept of correlation, it is found that a strong positive correlation is expected between these two variables.

When two variables are direct proportional, that is, both increase together, there is a <em>strong positive correlation.</em>

In this problem, <u>the older the car</u>, the more it should have traveled, that is, the <u>higher the read on the odometer</u>, hence, there is a <em>direct proportional</em> relationship, which means that the variables have a strong positive correlation.

A similar problem is given at brainly.com/question/15468813

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2 years ago

Chester has less than $25 to spend at the county fair. The entrance fee is $5, and each ride costs $3. The number of rides, r, t

padilas [110]

Answer:

6 rides

Step-by-step explanation:

3r+5<25

3r<20

r<6.67

rides=6

check answer

3r+5<25

3(6)+5<25

18+5<25

23<25

4 0

3 years ago

A square has a perimeter of 36 cm.<br> What is the length of each side?

larisa [96]

9 cm i hope this helps

5 0

2 years ago

Read 2 more answers

Marco need to buy some dog food at the nearest store six bags of dog food cost $25.50 how much would Marcos bag of five bags of

julsineya [31]

Answer:

Five bags of dog food costs $21.25.

Step-by-step explanation:

We can solve using proportions.

$\frac{6 \: bags}{25.50 \: dollars} = \frac{5 \: bags}{x} \\ \\ \frac{127.5}{6} = \frac{6x}{6} \\ \\ 21.25 = x \\ 21.25 \: dollars = x$

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3 years ago

Karen is buying pens and pencils for the new school year. She wants to have no more than 25 writing utensils in all. She also wa

bezimeni [28]

For this case, the first thing we must do is define variables.
We have then:
x: number of pens
y: number of pencils
We now write the system of inequations:
$x + y \leq 25

y \geq (x - 3) ^ 2
$
The solution to the system of inequations is given by the shaded region.
Note: see attached image.

3 0

3 years ago