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zaharov [31]
2 years ago
12

Fine the Slope, please explain!!

Mathematics
2 answers:
Rina8888 [55]2 years ago
5 0

Answer:

-3

Step-by-step explanation:

Because slope is rise over run.

Rise = -3

Run = 1

Rise/Run = -3/1 = -3

julia-pushkina [17]2 years ago
4 0

Answer:

Slope(m)= -3

Step-by-step explanation:

From the given graph, let's take two points,

(0,0) and (1,-3)

Slope=\frac{y_2-y_1}{x_2-x_1}

\left(x_1,\:y_1\right):\left(0,\:0\right)

\left(x_2,\:y_2\right):\left(1,\:-3\right)

m=\frac{-3-0}{1-0}

m=-3

Hope this helps!

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Solve the inequality x + 2 > 6.
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Answer:

x > 4

Step-by-step explanation:

x + 2 > 6

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Choose the equation that represents a line that passes through points (−1, 2) and (3, 1).
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You did not provide us with equations to select.

Find the slope m.

m = (1 - 2)/(3 - (-1))

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m = -1/4

Use the slope and one of the points and plug into the point-slope formula.

y - 1 = (-1/4)(x - 3)

Isolate y.

y - 1 = (-1/4)x + (3/4)

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Did you follow?

5 0
3 years ago
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A clinical trial was conducted to test the effectiveness of the drug zopiclone for treating insomnia in older subjects. Before t
aleksklad [387]

Answer:

We cannot say that the mean wake time are different before and after the treatment, with 98% certainty. So the zopiclone doesn't appear to be effective.

Step-by-step explanation:

The goal of this analysis is to determine if the mean wake time before the treatment is statistically significant. The question informed us the mean wake time before and after the treatment, the number of subjects and the standard deviation of the sample after treatment. So using the formula, we can calculate the confidence interval as following:

IC[\mu ; 98\%] = \overline{y} \pm t_{0.99,n-1}\sqrt{\frac{Var(y)}{n}}

Knowing that t_{0.99,15} = 2.602:

IC[\mu ; 98\%] = 98.9 \pm 2.602\frac{42.3}{4} \Rightarrow 98.9 \pm 27.516

IC[\mu ; 98\%] = [71.387 ; 126,416]

Note that 102.8 \in [71.384 ; 126.416] so we cannot say, with 98% confidence, that the mean wake time before treatment is different than the mean wake time after treatment. So the zopiclone doesn't appear to be effective.

7 0
3 years ago
Keiko deposits $6000 into an account that pays simple interest at a rate of 3% per year. How much interest will she be paid in t
irina1246 [14]

Answer:

540

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3 years ago
The number of tourists at the beach per weekend in July was 55,000, In November, the number of tourists per weekend was 18,000.
Ganezh [65]

Answer:

The percentage change from July to November is 67.27 %

Step-by-step explanation:

Given as :

The number of tourists at the beach per weekend in the month of July = x_1 = 55,000

The number of tourists at the beach per weekend in the month of November = x_2 = 18,000

Let the percentage change from July to November = A %

Or,  % decrease change = \dfrac{\tetxtrm new value - \textrm old value}{\textrm old value} × 100

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or, A % = \frac{55000 - 18000}{55000} × 100

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Or, A  = 67.27 %

So percentage change between two months = 67.27 %

Hence The percentage change from July to November is 67.27 % Answer

6 0
3 years ago
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