MATHEMATICS MIDDLE SCHOOL

Which equation could be used to solve problems involving the relationships between the angles?A) 90 + (8a + 9) = (11 + 2a)
B) 90 − (8a + 9) = (11 + 2a)
C) (11 + 2a) − 90 = (8a + 9)
D) (8a + 9) − (11 + 2a) = 90
Which equation could be used to solve problems involving the - 1

Answers

Answer 1
Answer:

Answer:

B

Step-by-step explanation:

Seeing the above angles we conclude that

(11+2a)+(8a+9)=90 (since they are complementary angles)

So

Subtracting (8a+9) to both sides we get

90-(8a+9)=11+2a
Answer 2
Answer:

Answer:

The answer is B.) 90 - (8a + 9) = (11 + 2a)

Step-by-step explanation:

90 − (8a + 9) = (11 + 2a)

Complementary angles add to 90°

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Answers

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Please I need help can someone help me it’s urgent

Answers

Answer:

When the numbers are giving us magnitude relative to a fixed point.

Step-by-step explanation:

In cases where the sign of the numbers are just telling us magnitude.

For instance the sign of the slope tells whether the line moves forward or backward.

But when we are considering the steepness of the line, it makes sense if we compare the absolute value of the numbers.

The greater the absolute value, the greater the steepness.

Also distance below or above sea level.

When two angles areadded together, they
form a 90° angle. One
of the angles is 1/2 the
other. How large Is the
smaller angle?

Answers

Answer:

30 degrees

Step-by-step explanation:

this can be expressed by x+y=90.

1/2y=x

multiply both sides by two to isolate y

y=2x

now sub in 2x for y in the first equation

x+2x=90, 3x=90, divide both sides by 3 to isolate x,

x=90/3=30

now subtract the value of x from 90 to find y

90-x=y, 90-30=y, 60=y

the smaller angle is 30 degrees.

The difference of two numbers is 8 their sum is 26 find the numbers

Answers

17 and 9 :) i found it by dividing 26 by 2 which is 13
I added 4 which is 17
I subtracted 4 which is 9

PLEASE HELP!!a basketball has a volume of 5600cm^3. what is the approximate radius?

A. 10 cm
B. 11 cm
C. 9 cm
D. 8 cm

Answers

Answer:

Sphere Volume = (4/3) * PI * radius^3

radius = cube root (Sphere Volume) / (4/3)*PI

radius = cube root (5,600) / (4/3)*PI

radius = 11.016 cm

radius = 11 cm (rounded)

Answer is B

Step-by-step explanation:

Which of the following equations results in no solutions?A 3(u + 5) = 2u + 15
B 3(u + 5) = 2u + 15 + u
C 3(u + 5) = 2u - 4 + u
D 3(u + 5) = 2u - 4
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Answers

It will be B because Problem A,C,D is wrong not Problem B
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