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Leokris [45]
3 years ago
7

Find x for the angles please!!! 20pts!

Mathematics
1 answer:
g100num [7]3 years ago
3 0

Answer:

X=53. X=38

Step-by-step explanation:

46+81+x=180

X=180-127

X=53 degrees

31+112+x=180

X=180-143

X=37 degrees

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A 16 ft ladder leans against the side of a house. The bottom of the ladder is 7 ft away from the side of the house. Find x , the
anzhelika [568]
Check the picture below.

make sure your calculator is in Degree mode.

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3 years ago
On a boat, a cabin's window is in the shape of an isosceles trapezoid, as shown below. What is the area of the window?
Luba_88 [7]

Answer:

The area of the window will be equal to 195 sq. inches.

Step-by-step explanation:

On a boat, a cabin's window is in the shape of an isosceles trapezoid.

The longer side parallel side is at the bottom.

The top side of the trapezoid is 10 inches and the height is 15 inches and the base of the triangle formed from the height on the right is labeled 3 inches.

So, the bottom parallel side has length of (10 + 3 + 3) = 16 inches.

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7 0
3 years ago
The first two terms in a geometric series are 20, 22. To two decimal places, the sum of the first k terms of the series is 271.5
Triss [41]

Answer:

k=9

Step-by-step explanation:

First find r=22/20=1.1

The sum of the first k terms formula is a1•(1-r^k)/(1-r)

a1=20 and the sum is 271.59

Now plug in these values in the formula and find k.

271.59=20(1-1.1^k)/(1-1.1)

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6 0
3 years ago
A population mean of 360, a standard deviation of 4, and a margin of error of 2.5%
Ad libitum [116K]

Answer:

(351.04, 368.96)

Step-by-step explanation:

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Std devitaion = 4

margin of error = 2.5%= 0.025

Since population std deviation is known we can use Z critical value

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2.24

Margin of error = ±Critical value*std deviation

= ±2.24(4)

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Confidence interval =(Mean - margin of error, mean + margin of error)

=(360-8.96, 360+8,.96)\\= (351.04, 368.96)

3 0
4 years ago
A restaurant has a profit of $13,000 in general the profit will increase by $150 each month for 11 months what will the total pr
OLga [1]

Answer:

14,650

Step-by-step explanation:

If the profit increases every month, and if the first month is 13,000, and then each subsequent month is 150, the answer is 13,000+(150*11) = 14,650

8 0
4 years ago
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