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Len [333]
3 years ago
9

If A and B are complementary angles and A = (8x+20), B = (7x-5) find A

Mathematics
1 answer:
Dima020 [189]3 years ago
8 0

Answer:

m∠A = 60°

Step-by-step explanation:

Complementary Angles add up to 90°

Step 1: Set up equation

8x + 20 + 7x - 5 = 90

Step 2: Solve for <em>x</em>

15x + 15 = 90

15x = 75

x = 5

Step 3: Find m∠A

m∠A = 8x + 20

m∠A = 8(5) + 20

m∠A = 40 + 20

m∠A = 60°

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The volunteers at a high school football team's concession stand are trying to decide on the price of the hot dogs they are sell
Dovator [93]

Answer:

The constant term in the polynomial is 140 and it represents the revenue when the price is not increased.

Step-by-step explanation:

To find: What is the constant term in the polynomial expression, and what does it represent?

The given expression is -8x^2 + 54x + 140.

To find the constant term we can simply put x=0 in the given equation where x represents the number of $1 increase in price.

=-8(0)^2 + 54(0) + 140

=140

The constant term is 140 and it represents the revenue when the cost of a hot dog is $2.

Hence, the constant term in the polynomial is 140 and it represents the revenue when the price is not increased.

8 0
3 years ago
What is his average speed for end the entire trip 280 miles<br> ?
-BARSIC- [3]

Answer:

20mph

Step-by-step explanation:

because when you divide the 280 it goes by 20 mph to get to 280 miles by quarters but in 20s

7 0
2 years ago
I have ₹355.50 in my pocket . i purchased a shirt for ₹ 235.50 and a pair of socks for ₹ 22.65. How much money is left with me n
Korolek [52]

Answer:

97.35

Step-by-step explanation:

355.5 - 235.5 -22.65

I am subtracting 235.5 and 22.65  from 355.5 because I am spending that much money on the things.

=> 355.5 - 235.5 - 22.65

=> 120 - 22.65

=> 97.35 rupees

So, 97.35 rupees is left

3 0
3 years ago
5*213 is a 5 digit number replace the * number by smallest digit to make them divisible by 3​
Elina [12.6K]

Answer:

1

Step-by-step explanation:

that is the answer

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7 0
2 years ago
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WILL GIVE BRAINLIEST
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You need to find circumference, so you would multiply the diameter by pi. So your answer is 212pi feet or 666.02 feet
6 0
3 years ago
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