MATHEMATICS MIDDLE SCHOOL

PLEASE HELP I GIVE THANKS What is the measure of the complement of an angle that measures 21°?


A.
24°


B.
69°


C.
111°


D.
159°

Answers

Answer 1
Answer: 90-21= 69 B A COMPLEMENTARY ANGLE IS 90 
Answer 2
Answer:

Answer:

c.111°

Step-by-step explanation:

Related Questions

How many ounces is in 1/2 of a gallon?
Estimate to the nearest doallar , the total cost $23.45+$3.98+$16.66+$12.08 (answer with suggesting work please)
2. Kelsea needs a test average of at least 90 to get an "A-" this marking period in math. Her three test gradesare 87,91 and 86. What score must she get on her fourth test to receive at least an A- ?Define variable:Equation:Solution:can someone check this please :)
Plz help asap!!!!!!!!!!!​
A few sentences with the word strive?

Please help
will mark brainlyest

Answers

Answer: 56

Step-by-step explanation: Since to other connecting degrees is 124, then you just need to take that away from 180 to get your answer.

What fractional part of a pound is an ounce

Answers

1/16 th of a pound is an ounce. In other words 16 ounces per pound
An ounce is 1/16th of a pound.

Sarita showed the steps to solving the equation. 5 (x minus 3) + 7 (x + 4) = 73 Steps Sarita’s Solution Sarita’s Verification 1 5 x minus 15 + 7 x + 28 = 73 5 (5 minus 3) + 7 (5 + 4) = 73. 5 (negative 2) + 7 (9) = 73. Negative 10 + 63 = 73. 53 not-equal-to 73. 2 (5 + 7) x + (negative 15 + 28) = 73 3 12 x + 13 = 73 4 12 x + 60 5 x = 5 When Sarita tried to verify her answer, she found it was wrong. Which explains her mistake? Sarita’s solution is correct. She made an error in her verification. Sarita was supposed to add the 5 and 7 in the first step. Sarita added +13 instead of Negative 13 in the fourth step. Sarita was supposed to use the division property of equality in the third step.

Answers

Answer: First option.

Step-by-step explanation:

The complete exercise is attached.

Given the following equation:

5 (x-3) + 7 (x + 4) = 73

The steps to solve it are:

1. Apply the Distributive property:

5x-15+7x+28=73

2. Add the like terms:

12x+13=73

3. Subtract5 13 from both sides of the equation:

12x+13-(13)=73-(13)\n\n12x=60\n\n

4. Divide both sides of the equation by 12:

(12x)/(12)=(60)/(12)\n\nx=5

To verify it, let's substitute x=5 into the equation:

5 (5-3) + 7 (5 + 4) = 73

Evaluating, we get:

5 (2) + 7 (9) = 73\n\n10+63=73\n\n73=73

Based on this, we can determine that Sarita's solution is correct, but she made an error in her verification (Observe that  5-3\neq -2)

Answer:A

Step-by-step explanation:

How are exponents and powers different?
(DON'T GOOGLE IT!)

Answers

Answer:

The power is larger than the exponet

Step-by-step explanation:
A power is the product of multiplying a number by itself. A power is represented with a base number and an exponent. The base number tells what number is being multiplied. The exponent, a small number written above and to the right of the base number, tells how many times the base number is being multiplied.

What is 9 times as many square feet as 81

Answers

 I think you multiply 81 and 9 then divide 3 then it = 243
81•9= 729 divide by 3= 243

The measures of the angels of ΔRST are in the ratio 2.4.9 What are the measures of the angels

Answers

Sum of interior angle of a triangle is 180 degrees.
2x + 4x + 9x = 180
15x = 180
x = 180/15 = 12
2x = 2 x 12 = 24
4x = 4 x 12 = 48
9x = 9 x 12 = 108
the measures of the angles are : 24 degrees, 48 degrees ,108 degrees
Other Questions
The sum of 4 twelve and 3 twelves
What is the square root of 81
What is 1 and 3/4 + 1 and 5/8?
A flight attendant has a hand cart in the shape of a rectangular prism that is filled with boxed snacks. The hand cart has a volume of 70/3ft cubed. Each snack box is in the shape of a cube with an edge length of 1/3 ft. How many snack boxes could fit in the hand cart?