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Lerok [7]
4 years ago
11

I WILL AWARD BRAINLIEST!! PLEASE HELP!!!

Mathematics
2 answers:
Firlakuza [10]4 years ago
5 0

Answer:

C. 120°

Step-by-step explanation:

Let angle A be x, then angle C is 2x

The sum of the angles in ABC is

A + B+ C = 180

x+90 +2x = 180

3x +90 = 180

3x= 90

Divide by 3

x = 90/3

x = 30

Angle A = 30,  Angle C = 2x = 60

AH = BH, so it is an isosceles triangle .  That means A and ABH are equal

A = 30 , ABH = 30

The sum of the angles in ABH must equal 180

A + ABH + BHA = 180

30 + 30 + BHA = 180

60 + BHA = 180

BHA = 180-60

BHA = 120

solong [7]4 years ago
3 0

Answer:

C

Step-by-step explanation:

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If about 1/40 of the earths water is fresh water. About 3/10 of the earths fresh water is ground water. What fraction of the ear
Alex17521 [72]

Answer:

3/400

Step-by-step explanation:

Let w represent earth's water

let f represent fresh water and let g represent ground water

f = \frac{1}{40}w

g =\frac{3}{10}f = \frac{3}{10}(\frac{1}{40}w)\\ \\g = \frac{3}{400}w

Therefore, fraction of earth's water,w, that is ground water = 3/400

6 0
3 years ago
Read 2 more answers
Hint: The exponent tells you how many spaces to move the decimal.
Softa [21]

Answer:

C

Step-by-step explanation:

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3 years ago
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A local hamburger shop sold a combined total of 575 hamburgers and cheeseburgers on Sunday. There were 75 fewer cheeseburgers so
lara31 [8.8K]

Answer:

250 Hamburgers

Step-by-step explanation:

575 is total

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x + (x-75) = 575

2x -75 = 575

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x = 250

<em>Feel free to mark this as brainliest! :D</em>

5 0
3 years ago
Plz help. w/ work or an explanation and get brainliest
mariarad [96]

Answer:

Step-by-step explanation:

The $2,000 upfront payment by Hank means that the relationship between the total amount paid and the number of months elapsed is NOT linear.  On the other hand, the girl's zero down payment indicates a linear, proportional relationship.

6 0
3 years ago
The popping-times of the kernels in a certain brand of microwave popcorn are normally distributed with a mean of 150 seconds and
RSB [31]
The z-score of the data can be calculated by the formula expressed as follows:

z = ( score - mean ) / standard deviation
z = (126 - 150 ) / 11 = <span>-2.18
</span>
A z-Score<span> is a statistical </span>measurement<span> of a </span>score's<span> relationship to the mean in a group of </span>scores<span>. A </span>Z-score<span> of 0 means the </span>score<span> is the same as the mean.</span><span>

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6 0
3 years ago
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