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Gelneren [198K]
3 years ago
7

What effect does blocking by gender have on the standard deviation of recumbent length for each​ gender?

Mathematics
1 answer:
jek_recluse [69]3 years ago
3 0
The standard deviation is lower for each group than it is for the groups combined.
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A cone has a volume of 90ft3. The diameter of the cone is 6ft. What is the height of the cone? Round your answer to the nearest
Anvisha [2.4K]
V=πr²(1/3)(h)
d=6, therefore r=3 and 
90=(3)²(1/3)(h)  ... I didn't include the pi because it isn't in the answer
90=3h
h=30

8 0
3 years ago
Find the area of the triangle. MY GRADE PLEASE HELP!
Airida [17]

Answer:

B:21

Step-by-step explanation:

Area of parallelogram=315=base ×hight .

base =x

hight= 15

15 × x = 315

x= 315/15

=21

8 0
2 years ago
{2y-4}=12 what are the solutions?
Hatshy [7]

Answer:

y=8

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

7 0
4 years ago
Read 2 more answers
You purchase a music store for $115,000. The estimated monthly revenue is $5500 and you expect monthly costs are $3200. Let R re
Butoxors [25]

9514 1404 393

Answer:

  R = 5500t

Step-by-step explanation:

The estimated monthly revenue is said to be 5500 per month. Then for t months, the revenue R will be ...

  R = 5500t

_____

<em>Additional comment</em>

We expect costs to be C = 3200t, so profit is ...

  P = R -C

  P = 5500t -3200t

  P = 2300t

At that rate, it will be 50 months before enough profit is earned to pay for the initial cost of the store.

4 0
3 years ago
Square P and Sqare Q are similar squares. The ratio of the side length of square P to the side length of square Q is 2:7. If the
Sergeu [11.5K]

Answer:

Perimeter of square Q is 49 inches.

Step-by-step explanation:

Let x be the length of side of square P and y be that of square Q.

It is given in the question that :

\frac{x}{y}=\frac{2}{7}

Also it is given that x=3.5 inches.Hence

\frac{3.5}{y}=\frac{2}{7}

∴ y=12.25 inches.

Perimeter of square Q is 4y = 4\times12.25=49 inches.

4 0
3 years ago
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