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vova2212 [387]
3 years ago
11

Hi Sonielis, when you submit this form, the owner will be able to see your name and email address.

Mathematics
1 answer:
Charra [1.4K]3 years ago
3 0

Answer: 1 cm = 3m

9 m

Step-by-step explanation:

1 cm = 3 m

2 cm = 6 m

3 cm = 9 m

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Kevin is taking a two-part test in social studies
Phantasy [73]

Answer:

He need to earn 32 points on part 2.

5 0
2 years ago
solve each problem.simplify your answer.One inch on a map equals 375 miles.what do 5 3/4 inches represent.
larisa [96]
1 inch × 375 = 375 miles
5³/₄ inches × 375 = 2156¹/₄ miles

If an inch on a map is equal to 375 miles, then 5³/₄ inches on an map is equal to 2156¹/₄ miles.
3 0
3 years ago
Math
lozanna [386]

Answer:

1. x=6

2. C <-26

3. p<6

4. -5x-44

Step-by-step explanation:

1. 2x = 3(x-2) - 3(x-6)

Distribute

2x= 3x-6 -3x+18

Combine like terms

2x =12

Divide by 2

2x/2 =12/2

x=6


2. C+6<-20

   Subtract 6 from each side

C+6-6 < -20-6

C <-26


3. -5p > -30  

Divide by -5.  Remember to flip the inequality when dividing by a negative

-5p/-5 < -30/-5

p<6


4. -4 - 5(X+8)

Distribute

-4 -5x-40

Combine like terms

-5x-44

6 0
3 years ago
A survey of 225 students showed the mean number of hours spent studying per week was 20.6 and the standard deviations was 2.7
LekaFEV [45]

Answer:

The margin of error is approximately 0.3

Step-by-step explanation:

The following information has been provided;

The sample size, n =225 students

The sample mean number of hours spent studying per week = 20.6

The standard deviation = 2.7

The question requires us to determine the margin of error that would be associated with a 90% confidence level. In constructing confidence intervals of the population mean, the margin of error is defined as;

The product of the associated z-score and the standard error of the sample mean. The standard error of the sample mean is calculated as;

\frac{sigma}{\sqrt{n} }

where sigma is the standard deviation and n the sample size. The z-score associated with a 90% confidence level, from the given table, is 1.645.

The margin of error is thus;

1.645*\frac{2.7}{\sqrt{225}}=0.2961

Therefore, the margin of error is approximately 0.3

5 0
3 years ago
Read 2 more answers
How do i do this <br> f(x) = -3(3) + 2
ANTONII [103]
The answer is given above

3 0
3 years ago
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