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SIZIF [17.4K]
3 years ago
14

Line 1 y= -5/2x Line 2 y= -5/2x +8 Which statement about the graph of the line is true

Mathematics
1 answer:
Pavel [41]3 years ago
5 0

Answer:

They have the same slope

Step-by-step explanation:

Given

y = -\frac{5}{2}x

y = -\frac{5}{2}x + 8

Required

Determine the true statement about both lines

An equation has a general format of:

y = mx + b

Where

m = slope

By comparing this to the equations of both lines, we have that:

For line 1:

m = -\frac{5}{2}

For line 2:

m = -\frac{5}{2}

Compare the slopes of both lines, we have that:

m = m = -\frac{5}{2}

<em>Hence, we can conclude that both lines have the same slope</em>

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Identify the ‘false’ statement.
Bingel [31]

Answer:

the false statement would be option b) (-333) < (-777).

Step-by-step explanation:

in negative numbers, the smallest negative number would be considered larger when compared to a large negative number. additionally, when you plot these numbers on a number line, it is evident that -333 would be closest to 0, and -777 would be the farthest. thus, -333 is larger than -777.

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3 years ago
Help plz :((<br> I'll give brainliest
Marina CMI [18]

Answer:

A. The source of energy for the water cycle is the sun.

B. Condensation would be the process that changes the water vapor into water droplets that form the cloud.

C. Arrow X would be runoff

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3 years ago
Ive been stuck for so long. pls help
astra-53 [7]

Answer:

B

Step-by-step explanation:

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3 years ago
The U.S. Energy Information Administration (US EIA) reported that the average price for a gallon of regular gasoline is $2.94. T
Anit [1.1K]

Answer:

a) 25

b) 67

c) 97

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample. In this problem, \sigma = 0.25

(a) The desired margin of error is $0.10.

This is n when M = 0.1. So

M = z*\frac{\sigma}{\sqrt{n}}

0.1 = 1.96*\frac{0.25}{\sqrt{n}}

0.1\sqrt{n} = 1.96*0.25

\sqrt{n} = \frac{19.6*0.25}{0.1}

(\sqrt{n})^{2} = (\frac{19.6*0.25}{0.1})^{2}

n = 24.01

Rounding up to the nearest whole number, 25.

(b) The desired margin of error is $0.06.

This is n when M = 0.06. So

M = z*\frac{\sigma}{\sqrt{n}}

0.06 = 1.96*\frac{0.25}{\sqrt{n}}

0.06\sqrt{n} = 1.96*0.25

\sqrt{n} = \frac{19.6*0.25}{0.06}

(\sqrt{n})^{2} = (\frac{19.6*0.25}{0.06})^{2}

n = 66.7

Rounding up, 67

(c) The desired margin of error is $0.05.

This is n when M = 0.05. So

M = z*\frac{\sigma}{\sqrt{n}}

0.05 = 1.96*\frac{0.25}{\sqrt{n}}

0.05\sqrt{n} = 1.96*0.25

\sqrt{n} = \frac{19.6*0.25}{0.05}

(\sqrt{n})^{2} = (\frac{19.6*0.25}{0.05})^{2}

n = 96.04

Rounding up, 97

8 0
3 years ago
What is 0.00000802 in scientific notation
salantis [7]
0.00000802=8.02 \cdot 10^{-6}
8 0
3 years ago
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