MATHEMATICS HIGH SCHOOL

(Sorry I’m dumb)The day they got home, the thermometer at Janelle's house read -4°F. What does this temperature mean compared with 0°F?

Answers

Answer 1
Answer:

Answer:

It is 4 degrees less than 0

Step-by-step explanation:

The - means less so you just subtract

If this is not the correct answer I will be baffled

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Find the common ratio for the following sequence.

27, 9, 3, 1, ...

Answers

The following ratio would be 1/3. Its a fraction so you would also be able to say 1.3. :)

What is 1/2 of a 3/4 cup of milk?

Answers

1/2 × 3/4 = 3/8 ⇒ 1/2 of 3/4 cup of milk is 3/8

Forgot what I do next.

Answers

Answer:

you do subtraction than the plus and you got your answer!

Hope this helps :)

Answer:

7h - 15h + 40 = -72

-8h + 40 = -72

take +40 on the other side of equation

-8h = -72-40

-8h = -112

h = -112/-8

h = 14

Step-by-step explanation:

What multiplies to -900 and adds to 5?

Answers

xy = -900
x + y = 5

     x + y = 5
x - x + y = -x + 5
           y = -x + 5

                                                xy = -900
                                      x(-x + 5) = -900
                                  x(-x) + x(5) = -900
                                       -x² + 5x = -900
                             -x² + 5x + 900 = 0
               -1(x²) - 1(-5x) - 1(-900) = 0
                          -1(x² - 5x - 900) = 0
                                       -1            -1
                               x² - 5x - 900 = 0
                               x = -(-5) ± √((-5)² - 4(1)(-900))
                                                      2(1)
                               x = 5 ± √(25 + 3600)
                                                  2
                               x = 5 ± √(3625)
                                             2
                               x = 5 ± 5√(145)
                                           2
                               x = 2.5 ± 2.5√(145)

                          x + y = 5
   2.5 ± 2.5 √(145) + y = 5
- (2.5 ± 2.5√(145)       - (2.5 ± 2.5√(145)
                                y = 2.5 ± 2.5√(145)
                          (x, y) = (2.5 ± 2.5√(145), 2.5 ± 2.5√(145))

The two numbers that add up to 5 and multiply to -900 are 2.5 ± 2.5√(145).

If the measure of <5 = 102° then the measure of <8 = what

Answers

Answer: 163.2°

Step-by-step explanation:

125% of what number is 30

Answers

If 125% of a number (x) is 30, then:

1.25x = 30
x = 30/1.25
x = 24

The number is 24.
30/125 x100
24 is 125% of 30
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