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svet-max [94.6K]
3 years ago
9

Which is the more reasonable temperature for a snowy day: 30° C or 30° F?

Mathematics
2 answers:
andrew-mc [135]3 years ago
6 0
The more reasonable temperature is 30°F
melisa1 [442]3 years ago
4 0

Answer:

30° F

Step-by-step explanation:

30° F is the more reasonable temperature for a snowy day.

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Something divide -7 = -14
Zina [86]

Answer:

98

Step-by-step explanation: Inverse operations

-14 x -7 = 98

98 / 7 = 14

98 / -7 = -14

7 0
3 years ago
The length of a rectangle exceeds its breadth by 7cm. if the length is decreased by 4cm and the breadth is increased by 3cm, the
riadik2000 [5.3K]

Answer:

16cm

Step-by-step explanation:

Let the breadth = x

The length exceeds = x + 7

The breadth increased = x + 3

Because it said the length decreased by 4 so, the length would be:

x + 7 - 4 = x + 3

Original area:

We learn that:

area = length * breadth

x*(x+7) = (x+3)*(x+3)

x^2 + 7x = (x+3)^2

x^2 + 7x = x^2 + 6x + 9 (We also learn that (a+b)^2 = a^2 + 2ab + b^2

x^2 - x^2 + 7x - 6x = 9

x = 9 (so the breadth = 9)

The length = x + 7 = 9+7 = 16(cm)

Hope this help you :3

7 0
3 years ago
A wall with a height of 20 feet is braced with a support post that forms a 30 degree angle with the top of the wall. What is the
dexar [7]

The length of the support post is 40 ft.

<u>Solution:</u>

Given, the height of the wall is 20 ft; support post forms 30 degree

Refer the attached image

Let us name the triangle as ABC where AB is the wall (opposite side) of 20 ft and \angle A is 30 degree (\theta) and AC is the length of the post.

To find: The length of the post (AC)

we know the formula, sin\theta=\frac{opp}{hyp} (trigonometric formula)

On substituting the values we get,

\Rightarrow sin(30^{\circ})=\frac{20}{AC}

The value of sin 30 degree is 0.5

\Rightarrow 0.5=\frac{20}{AC}\rightarrow AC=\frac{20}{0.5}\rightarrow AC=40 ft

3 0
3 years ago
Y=-1\2+1 with a slope intercept that contains (5,6)
Semenov [28]

Answer:

y - 1/2x + 7/2

Step-by-step explanation:

y = 1/2x + 1

6 = 1/2 (5) + b

6 = 5/2 + b

7/2 = b

8 0
3 years ago
Which of the following correctly uses absolute value to show the distance between -80 and 15?
SSSSS [86.1K]

Answer:

C

Step-by-step explanation:

|-80 - 15| = 95

The distance between -80 and 15 is 95

80 to 0 plus 15.

8 0
2 years ago
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