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Andrew [12]
3 years ago
13

It was a very freaky weather day. The temperature started out at 9 in the morning and went to -13 at noon. It stayed at that tem

perature for six hours and then it rose 7. How far below the freezing point (0) was the temperature at 6pm?
Mathematics
1 answer:
Lady_Fox [76]3 years ago
4 0

Answer:

6

Step-by-step explanation:

At 6pm, which is 6 hours after the noon, the temperature was:

-13 + 7

= -6

6 below the freezing point

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If g left parenthesis x right parenthesis equals 36 x squared minus 36 and h left parenthesis x right parenthesis equals 65 x​,
love history [14]
Given
g(x) = 36x² -36
h(x) = 65x

Find
x such that g(x) > h(x)

Solution
We can start by substituting the given information into the required relation.
  36x² -36 > 65x
Subtracting the right side and factoring gives
  36x² -65x -36 > 0
  (9x +4)(4x -9) > 0

The product of these factors will be greater than zero when both factors are negative or both are positive. They change sign at x = -4/9 and x = 9/4. Hence, the solution is
  x < -4/9 or 9/4 < x

4 0
3 years ago
A square has a side length of x inches. Each side of the square will be increased by 8 inches to create a larger square. If the
Norma-Jean [14]
X = 2

A square has 4 sides. To get the perimeter of a square, you could multiply the length of one side by 4.

One side of the larger triangle is x inches plus an additional 8 inches, which can be written as (x+8)

To get the perimeter of the larger square, multiply the expression (x+8) by 4. The question states the larger square’s perimeter is 40 inches.

You end up with this equation: 4(x + 8) = 40

To solve first distribution 4 into (x + 8).
4x + 32 = 40 | subtract 32 from both sides
4x = 8 | divide each side by 4
x = 2 inches

So the side length of the original square is 2 inches. To check your work, go back and plug x = 2 into the original equation. 8 in + 2 in = 10 inches, and 10 inches x 4 = 40 inches, so x = 2 is the solution
3 0
3 years ago
Each picture shows how a mapping, f, maps elements of a domain onto a range.
deff fn [24]

Answer:

Top left

Step-by-step explanation:

If an x value (domain) leads to more than one y-value (range), it is not a function. In other words, if each input value leads to only one output value, it is a function. It's still a function if the y-value leads to multiple x-values.

6 0
3 years ago
How do you multiply 40 7 /16?
nadya68 [22]
40 X 7/16?
I dont competly under stand becouse you just multaply it and the anser is 17.5

6 0
3 years ago
Read 2 more answers
An unopened cereal box contains `15/28` cubic foot of cereal. If the box is full, and the length and height of the box are `5/7`
VikaD [51]

Answer:

1/2ft

Step-by-step explanation:

15/28=(5/7)(1 1/2)(w)

15/28=(5/7)(3/2)w

15/28=(15/14)w

(15/28)/(15/14)=w

(15/28)*(14/15)=w

w=14/28

w=1/2 ft

4 0
3 years ago
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