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Anastaziya [24]
3 years ago
15

Find the required measurements of the following trapezoids.

Mathematics
1 answer:
Zinaida [17]3 years ago
7 0
The answer would be 36cm
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In a random sample of 520 adults, the mean was 150 and the standard deviation was 4.5. The study was reported with a 95% confide
kakasveta [241]
Given:
<span>random sample of 520 adults
mean was 150
standard deviation was 4.5.
reported with a 95% confidence level, and the confidence interval for the study was 150 ± 0.39.

The range of </span><span>values that shows the confidence interval for the study is </span><span>149.61 to 150.39

150 + 0.39 = 150.39
150 - 0.39 = 149.61</span>
8 0
3 years ago
Read 2 more answers
A company sells T-shirts for $11 each and sweatshirts for $19 each.The number of T-shirts sold was 10 fewer than three times the
Ghella [55]

Answer:

Number of T-SHIRT sold = x = 110

Number of sweatshirt = y = 40

Step-by-step explanation:

Let

Number of T-SHIRT sold = x

Number of sweatshirt = y

The number of T-shirts sold was 10 fewer than three times the number of sweatshirts sold.

x = 3y - 10

Cost of each T-SHIRT = $11

Cost of sweatshirt = $19

Total cost = $1,970

Total = x + y

1,970 = 11(3y - 10) + 19y

1970 = 33y - 110 + 19y

1970 + 110 = 33y + 19y

2080 = 52y

y = 2,080/52

y = 40

Substitute y = 40 into

x = 3y - 10

x = 3(40) - 10

x = 120 - 10

x = 110

Number of T-SHIRT sold = x = 110

Number of sweatshirt = y = 40

6 0
2 years ago
A sixth grade class has 12 boys and 24 girls Write two statements comparing the number of boys in the class to the number of gir
user100 [1]
12 boys and 24 girls...

There are half as many boys as there are girls.
There are 2 times as many girls as there are boys.
Is this what u mean ?
6 0
3 years ago
Read 2 more answers
Through: (4, 3), parallel to x = 0
riadik2000 [5.3K]
X=0 is a vertical line so, the only vertical line that passes (-4,4) is x = -4.
5 0
3 years ago
Find the amount of time. I=$70, P=$350, r=4%
Snowcat [4.5K]

Answer:

5years

Step-by-step explanation:

I=70

P=350

R=4

<h3>I=PRT/100</h3>

➜PRT=100 I

➜T=100 I/PR

➜100×70/350×4

➜7000/1400

➜5years

4 0
3 years ago
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