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Vesnalui [34]
3 years ago
6

The surface area of a triangular pyramid is 1836 ft2.

Mathematics
1 answer:
mojhsa [17]3 years ago
8 0
1836 ÷ 4 = 459 ft^2   B
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The measure of <1 = 20x + 21 and the measure of <2 = 30x - 29.
geniusboy [140]

Answer:

Both equal 121 degrees

Step-by-step explanation:

Vertical angles are equal, and  and 2 are indeed vertical angles.  They are the "top" and "bottom" of the x formed.  So you can use this.

angle 1 = angle 2

20x + 21 = 30x - 29

50 = 10x

5 = x

So just plug this in.

20x + 21

20(5) + 21

121

30x - 29

30(5) - 29

121

So both are 121.

8 0
3 years ago
PLEASE HELP!!!!! Lines BC and EF meet at A. Set up an equation to find the value of x. Find the measurements of EAH and HAC
allsm [11]

Answer:

Value of X = 21

EAH = 63

HAC = 84

Step-by-step explanation:

6 0
2 years ago
Sam says 90 ÷ (–9) = 10. Is he correct? Use the drop–down menus to explain your answer.
SashulF [63]

Answer:

No.

Step-by-step explanation:

Sam is incorrect because if you look at the original problem, you'll see that he has missed the negative sign!

90 / 9 does equal 10, but 90 / -9 equals -10.

The only way to get a positive answer is if both the divisor and dividend are positive or if they are both negative.

Thus, the correct answer should be -10.

3 0
3 years ago
A grocery store has 18 cartons of yogurt for sale, of which 6 are vanilla.
kicyunya [14]

Answer:

1/3

Step-by-step explanation:

If 6/18 of the cartons are vanilla that means that those are the odds of you picking a vanilla at random

6/18=1/3

8 0
3 years ago
Read 2 more answers
Your friend works as a salesman in a shop were she earns $200 a week. She is paid a commission of 5% of her sales. How much did
Jet001 [13]
4500/100 = 45 x 5 = $225
6 0
3 years ago
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