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zheka24 [161]
3 years ago
5

Find x in the following right triangle

Mathematics
1 answer:
FrozenT [24]3 years ago
4 0

a squared + b squared = c squared

576+100=c squared

676=c squared

c squared = 26

hope it helps

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Nick bought apples at a farmers market where 5 apples cost $4.45.
Gwar [14]

Answer:

$0.89/apple

Step-by-step explanation:

$4.45

-------------- = $0.89/apple

5 apples

7 0
3 years ago
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lorasvet [3.4K]

Answer:

ok put me brainliest  please

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Step-by-step explanation:

6 0
3 years ago
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Construct the indicated confidence interval for the difference between the two population means. Assume that the two samples are
Kruka [31]

Answer:

Step-by-step explanation:

The formula for determining the confidence interval for the difference of two population means is expressed as

Confidence interval = (x1 - x2) ± z√(s²/n1 + s2²/n2)

Where

x1 = sample mean of type A paint

x2 = sample mean of type B paint

s1 = sample standard deviation type A paint

s2 = sample standard for type B paint

n1 = number of samples of type A paint

n2 = number of samples of type B paint

From the information given,

x1 = 75.7

s1 = 4.5

n1 = 11

x2 = 64.3

s2 = 5.1

n2 = 9

x1 - x2 = 75.7 - 64.3 = 11.4

√(s1²/n1 + s2²/n2) = √(4.5²/11 + 5.1²/9) = √4.709

Degree of freedom = (n1 - 1) + (n2 - 1)

df = (11 - 1) + (9 - 1) = 18

For the 98% confidence interval, the z score from the t distribution table is 2.552

Margin of error = 2.552√4.709 = 5.55

The upper boundary for the confidence interval is

11.4 + 5.55 = 16.95 hours

The lower boundary for the confidence interval is

11.4 - 5.55 = 5.85 hours

The correct option is

B. 5.85 hrs < μ1 - μ2 < 16.95 hrs

4 0
3 years ago
Please help meeeeedeededdesesseeeee
Rudiy27

Answer:

78.5

Step-by-step explanation:

A=πr^2 is the formula. Since you're using pi as 3.14, 3.14 times 5^2 is 78.5 (5^2 is 25 because 5x5=25)

4 0
3 years ago
Read 2 more answers
Question 2<br> Answer<br><br> Solve
Lelu [443]

<u>Answer:</u>

  • Option B is correct.

<u>Step-by-step explanation:</u>

<u>To subtract fractions, we must check if the denominators of both fractions are the same.</u>

  • 2/5 - 1/7
  • => 2 x 7/5 x 7 - 1 x 5/7 x 5
  • => 14/35 - 5/35

<u>Now, let's subtract for the result.</u>

  • => 9/35

Hence, <u>Option B is correct.</u>

Hoped this helped.

BrainiacUser1357

8 0
2 years ago
Read 2 more answers
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