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kaheart [24]
3 years ago
7

the temperature is dropping -3.75 degrees per hour. how many hours will the temperature drop for 4.5 hours

Mathematics
2 answers:
boyakko [2]3 years ago
5 0

Answer:

It will drop 16.875 degrees

Step-by-step explanation:

3.75 × 4 = 15

.5 × 3.75 1.875

Len [333]3 years ago
4 0

Answer:

-16.875

Step-by-step explanation:

This equation is quite simple and will only require one equation to solve. This is the equation,

-3.75×4.5=-16.875

The final answer is -16.875

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What is the distance between -3/7 and 2/8​
NISA [10]

Answer:

\frac{19}{28}

Step-by-step explanation:

distance between -3/7 and 2/8

=  \frac{2}{8}  -  \bigg( -  \frac{3}{7}  \bigg) \\  \\  =  \frac{2}{8}  +  \frac{3}{7} \\  \\ =  \frac{2 \times 7}{8 \times 7}  +  \frac{3 \times 8}{7 \times 8} \\  \\ =  \frac{14}{56}  +  \frac{24}{56} \\  \\  =  \frac{14 + 24}{56}  \\  \\  =  \frac{38}{56}  \\  \\  =  \frac{19}{28}

5 0
3 years ago
An English teacher has been teaching a sixth grade composition class for many years. He has the feeling that over the past sever
zhuklara [117]

We have here as \mu as \sigma, then the values are.

\mu = 80

s=8.7

For the resulting of the test by the teacher he had,

\bar{X}=80,s=8.7

With all of this dates to make the comparition we use the formula for Z values, that is

z=\frac{\bar{x}-\mu}{\frac{\sigma}{ \sqrt{n}}}

z=\frac{80-85}{\frac{10.9}{43}}

z=-3.008 = 3.01

We know moreover that \alpha= 0.052.

To find Z_{critic} we need to find 1-\alpha/2

1-\alpha/2=1-0.052/2 =0.974

Searching in the table of Normal Distribution for Z, and making the lecture we find that z_{critic} is, 1.95.

5 0
3 years ago
What is the difference written in scientific notation? 0.00067 - 2.3 x 10^5
shepuryov [24]
0.00067=67X10^5 so

67X10^5-2.3X10^5

64.7X10^5 which can be expressed as:

6.47X10^6

(not sure if it matters to you or not, but technically we only had two significant figures so it should be rounded to 6.5X10^6)


5 0
4 years ago
Janice is 2 years younger than 3 times her cousins age. The Sum of their ages is greater than 14. What is the youngest her cousi
Mice21 [21]
The youngest her cousin can be is 4.
4(3)=12
12-2=10
10+4=14
6 0
4 years ago
Answer choices <br>1) 84°<br>2) 168°<br>3) 192°<br>4) 88°<br>PLEASE HELP ASAP​
almond37 [142]

Answer:

2) 168

Step-by-step explanation:

4 0
3 years ago
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