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Anastaziya [24]
3 years ago
6

The outside temperature is -20° F and rising at a rate of 5 degrees per hour. How long will it be before the temperature reaches

0 F?
Mathematics
2 answers:
Elenna [48]3 years ago
6 0

Answer:

Pretty sure it would take 4 hours.

xz_007 [3.2K]3 years ago
6 0

Answer:

4 hours

Step-by-step explanation:

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Can some on help me please??
erma4kov [3.2K]

Answer:

Frequency is 2, 2 and 3.

Step-by-step explanation:

Temp in 101 to 106 - In this range only 2 temperature is there 104 and 104 in 2 cities. so frequency is 2.

Temp in 107 to 112 - In this range only 2 temperature is there 107 and 112 in 2 cities. so frequency is 2.

Temp in 113 to 118 - In this range only 3 temperature is there 114, 117 and 118 so frequency is 3.

5 0
2 years ago
Read 2 more answers
The scores on the entrance exam at a well-known, exclusive law school are normally distributed with a mean score of 200 and a st
ruslelena [56]

Answer:

the lowest passing score would be x = 298

Step-by-step explanation:

School wishes that only 2.5 percent of students taking test pass

We are given

mean= 200,

standard deviation = 50

We need to find x

The area under the curve can be found by:

2.5 % = 0.025

So, 1- 0.025 = 0.975

We need to find the value of z for which the answer is 0.975

Looking at the z-score table, the value of z is: 1.96

Now, using the formula:

z = x - mean/standard deviation

1.96 = x - 200/50

=> 1.96 * 50 = x-200

98 = x - 200

=> x = 200+98

x = 298

So, the lowest passing score would be x = 298

8 0
3 years ago
Estimate a 15% tip on a dinner bill of $49.35 by first rounding the bill amount to the nearest ten dollars.
inysia [295]

9514 1404 393

Answer:

  $7.50

Step-by-step explanation:

Rounded to the nearest $10, the $49.35 bill becomes $50.

We can find 10% of that amount by moving the decimal point to the left. 10% of $50 is $5.00.

Then 5% of $50 is half of 10%, so is $5/2 = $2.50.

The estimated tip of 15% is the sum of 10% and 5% of the bill, so is ...

  15%($50) = 10%($50) +5%($50) = $5.00 +2.50 = $7.50

The estimated 15% tip is $7.50.

3 0
3 years ago
Which shows how to solve the equation 3 over 4 x= -6 for x in one step?
masya89 [10]

Answer:

-8

Step-by-step explanation:

multiply for on both sides then divide by 3

I think its B because

your multiply 4 on both sides

and then you divide by 3

8 0
3 years ago
Read 2 more answers
What is the height of the antenna?
ira [324]

Answer:

14 feet.

Step-by-step explanation:

Use the tangent function:

tan\alpha = \frac{opposite}{adjacent}

a = length of antenna:

tan\70 = \frac{a}{15}

a = 15tan\70

a = 14.09538931 ≈ 14

7 0
3 years ago
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