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navik [9.2K]
2 years ago
15

Y=-3x + 7? what is slope of line y

Mathematics
1 answer:
ipn [44]2 years ago
4 0

Answer:

-3

Step-by-step explanation:

coefficent of x enough to understand slope

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If the diameter of a circle is 12 cm, what is the area to the nearest tenth.
atroni [7]

Answer:

A≈113.1cm²

Step-by-step explanation:

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3 years ago
A swimming pool had 2.5 million liters of water in it. Some water evaporated, and then the pool only had 2million liters of wate
dimulka [17.4K]

First you would subtract 2.5 by 2 and you get .5. Next you would find the percentage of .5 out of 2.5, you would then get 0.0125%

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3 years ago
Table B: Garden-Type Frequencies by Row
Alborosie

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table a , have a nice day

5 0
3 years ago
The amount of time it takes to see a doctor a CPT-Memorial is normally distributed with a mean of 33 minutes and a standard devi
Eva8 [605]

Answer:

a) <em>Z-score = 0.75</em>

b) <em>Z-score = -32.833</em>

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that mean of the Population = 33

Given a standard deviation of the Population = 12

Let 'X' be a random variable in a normal distribution

Let 'X' = 42

<u><em>Step(ii):-</em></u>

<em>      </em>Z = \frac{x-mean}{S.D}<em></em>

<em>     </em>Z = \frac{42-33}{12} = 0.75<em></em>

<u><em>Step(iii):-</em></u>

<em>Given that mean of the Population = 89</em>

Given a standard deviation of the Population = 1

Let 'X' be a random variable in a normal distribution

Let 'X⁻ = 82

<em>   </em>Z = \frac{x^{-} -mean}{\frac{S.D}{\sqrt{n} } }<em></em>

<em>     </em>Z = \frac{82-89}{\frac{1}{\sqrt{22} } } =  -32.833<em></em>

<em>Z-score = -32.833</em>

<em></em>

7 0
3 years ago
How do you determine the area of a circle? Could you give an example please?
pickupchik [31]
To determine the area if the circle, you must know the diameter or the radius of a circle.

If you know the radius of a circle, use this as your formula. Remember: Pi (the greek symbol thingy) is equal to 3.1415. (A is equal to area of the circle and r represents the radius)
a = \pi {r}^{2}
If you know the diameter, just divide the diameter to get the radius then use the same equation.

7 0
3 years ago
Read 2 more answers
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