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3 years ago

Please reply as soon as possible

Mathematics

2 answers:

aleksandr82 [10.1K]3 years ago

5 0

The answers are a) right b) acute & c) obtuse

Vlada [557]3 years ago

5 0

An acute triangle is one where all 3 angles are acute...less then 90
an obtuse triangle is one with 1 obtuse angle (greater then 90)
a right triangle has exactly one right angle (90)

30-60-90 = right triangle
67-76-37 = acute triangle
15-100-65 = obtuse triangle

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PLEASE HELP MEEEE!!!!!

loris [4]

Answer:

47.8

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

If the monthly cost for 14 HCF is $48.70, what is the monthly cost for 10 HCF?

Anton [14]

Answer:

$34.78

Step-by-step explanation:

first, we need to find the value of 1 HCF, so we divide $48.70 by 14, giving us the result of 3.47857143. (rounding that turns out to be 3.48.

next, we need to multiply the cost of 1 HCF by 10, so 3.48 * 10 = 34.78

7 0

3 years ago

Suppose you live 4.4 miles from a hill. From your home you see a plane directly above the hill. Your angle of elevation to the p

IrinaVladis [17]

█ Explanation █

Let's call the missing altitude 'x'.

✦ To find the plane's altitude, find the tan of 30 degrees. The side opposite is going to be x, while the side adjacent is going to be 4.4 miles.
✦ $Tan(30)= \frac{x}{4.4}$
✦ $5.7735= \frac{x}{4.4}$
✦ $x=4.4*.57735$
✦ $x=4.4*.55735$
✦ $x=2.54 mi$
✦ We usually write altitude in feet.

Answer: 2.54 * 5280 ~ 13,400 ft

Hope that helps! ★ If you have further questions about this question or need more help, feel free to comment below or leave me a PM. -UnicornFudge aka Nadia

4 0

3 years ago

I need help with my final, it’s my final grade

Stels [109]

Answer:

3.5°

Step-by-step explanation:

Subtract 82 and 54, to find the total change in temperature, 28.

7:00 am and 3:00 pm are 8 hours apart, so divide 28 by 8.

Your answer should be D, 3.5° per hour.

6 0

3 years ago

Suppose the number of residents within five miles of each of your stores is asymmetrically distributed with a mean of 25 thousan

ohaa [14]

Answer:

$P(\bar X\:>27.8\:thousand)=3.07\%$

Step-by-step explanation:

Since the number of residents within five miles of each of your stores is asymmetrically distributed, the distribution of the sample means will be approximately normal with a mean of 25 thousand.

The standard deviation of the sample means is:

$\sigma_X=\frac{\sigma}{\sqrt{n} }$

$\implies \sigma_X=\frac{10.6}{\sqrt{50} }=1.4991$

The z value is $z=\frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n}} }$

We plug in the values to get:

$z=\frac{27.8-25}{1.4991}=\frac{2.8}{1.4991}=1.87$

The area to the right of 1.87 is $1-0.96926=0.03074$ .

The probability that the average number of residents within five miles of each store in a sample of 50 stores will be more than 27.8 thousand is 3.07%

See attachment.

6 0

4 years ago