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3 years ago

What’s the answer? Please!!

Mathematics

2 answers:

gogolik [260]3 years ago

8 0

Answer:

Step-by-step explanation:

Sholpan [36]3 years ago

4 0

1 I agree with the person above

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A right triangle has a hypotenuse of 8 feet. One leg has a length of 5 feet. How long is the other leg?

posledela

THEOREM:

<u>Pythagorean theorem</u>:– In a right angled triangle, the sum of squares of two legs is equal to the square of hypotenuse.

ANSWER:

Let the other leg be p, by pythagorean theorem

p² = h² - b²

p² = (8)² - (5)²

p² = 64 - 25

p² = 39

p = √39 ft.

So, <u>Correct choice</u> - [B] √39 ft.

7 0

3 years ago

Read 2 more answers

Plz help due tomorrow

Softa [21]

Answer:

$2.50+$1.25m

Step-by-step explanation:

hope this helps

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3 years ago

The cereal box is a rectangular prism find the surface of the box when the hight is 30cm width is 5cm length is 20cm

AfilCa [17]

Answer:1700

Step-by-step explanation:

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4 years ago

Find the sum of the geometric series: 6+12+24+48+...+12,288. Show your work

slava [35]

The first answer is 1310
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3.and im sorry i cant help u with this one

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4 years ago

Read 2 more answers

The life in hours of a 75-watt light bulb is known to be normally distributed with standard deviation σ = 25 hours. A random sam

irina [24]

Answer: a) (1008.34,1019.658) b) (1009.24,1018.76)

Step-by-step explanation:

Since we have given that

n = 75

mean = 1014 hours

Standard deviation = 25 hours

At 95% two sided , z = 1.96

So, confidence interval would be

$\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=1014\pm 1.96\dfrac{25}{\sqrt{75}}\\\\=1014\pm 5.658\\\\=(1014-5.658,1014+5.658)\\\\=(1008.34,1019.658)$

(b) Construct a 95% lower confidence bound on the mean life.

z = 1.65

So, confidence interval would be

$\bar{x}\pm z\times \dfrac{\sigma}{\sqrt{n}}\\\\=1014\pm 1.65\times \dfrac{25}{\sqrt{75}}\\\\=1014\pm 4.76\\\\=(1014-4.76,1014+4.76)\\\\=(1009.24,1018.76)$

Hence, a) (1008.34,1019.658) b) (1009.24,1018.76)

4 0

4 years ago