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madreJ [45]
2 years ago
11

Solve using substitution. X = -1 -8x + y = 14 Submit

Mathematics
1 answer:
Vesnalui [34]2 years ago
7 0
So given x=-1, you can substitute it for x in the second equation.

-8(-1)+y=14

y+8=14

y=6

So the solution is (-1,6)
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What is the z score
joja [24]

Step-by-step explanation:

z = (x − μ) / σ

z = (65 − 69) / 3.5

z = -1.14

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4 years ago
Which describes Myra's distance as time increases?
DaniilM [7]

Answer:

(A)increasing

Step-by-step explanation:

Given the time and total distance ran by Myra in the table below.

\left|\begin{array}{c|c}Time(minutes)&Distance(miles)\\--&--\\0&0.0\\2&0.4\\4&0.8\\6&1.2\\8&1.6\end{array}\right|

We observe that as time increases, Myra's distance also increases. It is the speed(0.2 miles per minute) which is constant.

Therefore Option A is the correct option.

3 0
3 years ago
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Assume the random variable x is normally distributed with mean u = 90 and standard deviation o=5. Find the indicated probability
Setler79 [48]

<u>Given</u>:

Let the random variable x is normally distributed with mean \mu=90 and \sigma=5

We need to determine the probability of P(X

<u>Probability of </u>P(X<u>:</u>

The formula to determine the value of P(X is given by

Z=\frac{X-\mu}{\sigma}

Thus, we have;

P(X

Simplifying, we get;

P(X

P(X

Using the normal distribution table, the value of -2 is given by 0.0228

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Thus, the value of P(X is 0.0228

6 0
3 years ago
List the following objects in order from lowest inertia to highest inertia: Earth, desk, baseball, fork, house, feather,
kirill115 [55]

Answer:

Feather, fork, baseball, desk, cow, tow truck, house, Earth, Sun

Step-by-step explanation:

The bigger the object, the more inertia it has, since it's harder to move a bigger object. So, since a feather is the smallest thing with the least amount mass, it should be the easiest to move, giving it the least amount of inertia. It's the opposite for the Sun, since it's the biggest object on the list.

3 0
3 years ago
The points (–2, 4) and (–2, –2) are vertices of a heptagon. Explain how to find the length of the segment formed by these endpoi
Scrat [10]

Answer:

The segment is 6 units long.

Step-by-step explanation:

The points (–2, 4) and (–2, –2) are vertices of a heptagon. We have to explain how to find the length of the segment formed by these endpoints.

If two points at the ends of a straight line PQ are P(x_{1},y_{1}) and Q(x_{2},y_{2}), then the length of the segment PQ will be given by the formula  

\sqrt{(x_{1} - x_{2})^{2} + (y_{1} - y_{2})^{2}}

Now, in our case the two points are (-2,4) and (-2,-2) and the length of the segment will be  

\sqrt{(- 2 - (- 2))^{2} + (4 - (- 2))^{2}} = 6 units. (Answer)

5 0
4 years ago
Read 2 more answers
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