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GuDViN [60]
2 years ago
6

Find the area from the this problem plz

Mathematics
2 answers:
Nuetrik [128]2 years ago
6 0
Area=370
Explantion:
find the area of the big rectangle first(15x30)
Find the area of the smaller rectangle (8x10)
Then subtract the big rectangle from the smaller(450-80=370) then u get ur answer
a_sh-v [17]2 years ago
4 0

Answer:

1

Step-by-step explanation:////

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Could someone answer this for me?​
MA_775_DIABLO [31]

Answer:

12 and 13 I believe

Step-by-step explanation:

12x12=144

13x13=169

4 0
3 years ago
450 high school freshmen were randomly selected for a national survey. Among survey participants, the mean grade-point average (
umka21 [38]

Answer:

The margin of error is of 0.01.

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 - 0.7}{2} = 0.15

Now, we have to find z in the Z-table as such z has a p-value of 1 - \alpha.

That is z with a pvalue of 1 - 0.15 = 0.85, so Z = 1.037.

The margin of error is of:

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

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

Standard deviation was 0.21.

This means that \sigma = 0.21

Sample of 450:

This means that n = 450

What is the margin of error, assuming a 70% confidence level, to the nearest hundredth?

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

M = 1.037\frac{0.21}{\sqrt{450}}

M = 0.01

The margin of error is of 0.01.

4 0
3 years ago
Frank is planting a flower garden. He plants 2 lilies for every 3 rose bushes. If Frank plants 12​ lilies, how many rose bushes
Alja [10]

Answer:

17 rose  bushes

Step-by-step explanation:

Add all of them together  to find the answer. HOPE this helps:> please mark brainliest

7 0
2 years ago
Read 2 more answers
Financial planners recommend that families save about 5% of their take-home pay. Ed and Sherrie save $90 each pay period from th
Ratling [72]

Answer:

Ed and Sheerie save 7.5%.

Step-by-step explanation:

This question can be solved using a rule of three.

Ed and Sherrie save $90 each pay period from their combined paychecks, which total $1200. What percent do Ed and Sherrie save?

How much of $1200 is $90? $1200 is 100% = 1, $90 = x. So

$1200 - 1

$90 - x

1200x = 90

x = \frac{90}{1200}

x = 0.075

Ed and Sheerie save 7.5%.

7 0
3 years ago
Will give brainliest to correct first answer
xxTIMURxx [149]
The answer is 24 two ways you can find it is one by dividing or two my multiplying the reciprocal
6 0
2 years ago
Read 2 more answers
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