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Taya2010 [7]
2 years ago
7

Find the area of the given triangles.

Mathematics
1 answer:
vovikov84 [41]2 years ago
5 0

154 yd ²

the formula is (b • h) / 2 = A

so plug it in (14 • 22) / 2 = 154

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How many unique triangles can be made with 3,5,8
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Answer

2 or 3

Step-by-step explanation:

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Each day, the human heart pumps about 7500 liters of blood. As a simple approximation, assume that the work done by the heart is
erik [133]

Answer with Step-by-step explanation:

We are given

Volume of blood=V=7500 L=7500\times 0.001=7.5 m^3

1 liter=0.001 m^3

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P=\frac{1.16\times 10^5}{86400}=1.34 Watt

7 0
3 years ago
By law, an industrial plant can discharge no more than 500 gallons of waste water per hour, on the average, into a neighboring l
lisabon 2012 [21]

Answer:

P = 0.0438 ; We reject the Null and conclude that there is significant evidence that the discharge limit per gallon of waste has been exceeded.

Due to the small sample size.

Step-by-step explanation:

H0: μ = 500

H1 : μ > 500

Test statistic :

(xbar - μ) / S.E

Tstatistic = (1000 - 500) / 200

= 500 / 200

= 2.5

Pvalue from Test score ; df = 4 - 1 = 3 ; using calculator :

Pvalue = 0.0438

At α = 0.05

Pvalue < α ; We reject the Null and conclude that there is significant evidence that the discharge limit per gallon of waste has been exceeded.

The test above has a very small sample size, and for a distribution to be approximately Normal, the sample size must be sufficiently large enough according to the Central limit theorem.

For a two sided analysis ; the Pvalue is twice that for the one sided, hence, Pvalue = (0.0438 * 2) = 0.0876 yielding a less strong evidence against the Null.

3 0
2 years ago
An ice cream sundae costs $1.75 plus an additional $0.35 for each topping. If the total
laiz [17]

Answer:

3

Step-by-step explanation:

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1) Move the constant to the right side and change its sign: 0.35x=2.8-1.75

2) Substract the numbers: 0.35x=1.05

3) Divide the both sides of the equation by 0.35

4) x=3

5 0
3 years ago
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