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gulaghasi [49]
3 years ago
7

Consider the following pair of equations:

Mathematics
1 answer:
dimulka [17.4K]3 years ago
4 0
First substitute y = x - 1 in  y = 3x + 3 , so

3x + 3 = x - 1

2x = -4

x = -2

Now substitute for x in the first equation:-

y =3(-2) + 3 = -6 + 3

y = -3 


Answer is  (-2, -3)
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The distance from Earth to Mars is 136,000,000 miles. A spaceship travels at 31,000 miles per
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136,000,000/31,000= how many hours for the spaceship to reach mars
136,000,000/31,000/24= how many days for the spaceship to reach mars
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3 years ago
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Write the equation of the line graphed below
zimovet [89]

Answer:

y = 5/8x + 12

Step-by-step explanation:

Slope = change in y/change in x

slope = 5/8

Using y = mx + b find b.

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3 0
2 years ago
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lawyer [7]
If you would like to know how far is Julian from his starting position, you can calculate this using the following steps:

First, you have to make a right triangle, where the hypotenuse of this triangle will actually be the distance we are looking for. The distances of the other two sides are 444 kilometers, and 777 kilometers - 222 kilometers; to be exact: 444 kilometers and 555 kilometers.

The distance we are interested in ... d:
d^2 = 444^2 + 555^2
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</span>
The correct result would be <span>710.7 kilometers.</span>
7 0
3 years ago
A random sample has been selected from a population. The point estimate = 78.65 and margin of error E = 8.24 for a 90% confidenc
fiasKO [112]

Answer:

90% confidence interval: (70.41,86.89)

Step-by-step explanation:

We are given the following in the question:

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Margin of error, E = 8.24

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Formula:

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Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.10} = \pm 1.64

78.65 \pm 8.24 = (70.41,86.89)

(70.41,86.89) is the required 90% confidence interval.

5 0
3 years ago
What's 50 x 50. please help please
lukranit [14]
It is 2500 use a calculator
3 0
2 years ago
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