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3 years ago

What is the slope in this equation? y = 3x - 5

Mathematics

2 answers:

nikdorinn [45]3 years ago

4 0

Answer:

Step-by-step explanation:

The equation is y=Mx+b where m is the slope and b is the y intercept so m=3 so the slope is 3

DanielleElmas [232]3 years ago

4 0

Answer:

Step-by-step explanation:

the slope is : 3

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The Department of Transportation would like to test the hypothesis that the average age of cars on the road is less than 12 year

puteri [66]

Answer:

$z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29$

Step-by-step explanation:

information given

$\bar X=10.6$ represent the sample mean

$\sigma=4.1$ represent the population standard deviation

$n=45$ sample size

$\mu_o =12$ represent the value that we want to test

$\alpha=0.05$ represent the significance level for the hypothesis test.

z would represent the statistic

$p_v$ represent the p value for the test

Hypothesis to test

We want to test if the true mean is less than 12, the system of hypothesis would be:

Null hypothesis: $\mu \geq 10$

Alternative hypothesis: $\mu < 10$

The statistic is given by:

$z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}$ (1)

Replacing the info given we got:

We can replace in formula (1) the info given like this:

$z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29$

8 0

3 years ago

Mark made a scale drawing of a soccer field, using a scale of .5 cm=1m. The actual length of the field is 110 m. What is the len

VikaD [51]

Answer:

The length of the field on the drawing is 55 cm that is option D.

Step-by-step explanation:

Given:

Mark made a scale drawing of a soccer field, using a scale of .5 cm=1 m.

The actual length of the field is 110 m.

Now, to find the length of the field on the drawing.

Let the length of the field on drawing be $x\ cm.$

As given,

Drawing of a soccer field, using a scale of 0.5 cm=1 m.

So, 0.5 cm is equivalent to 1 m.

Thus, $x\ cm$ is equivalent to 110 m.

Now, to get the length of the field on the drawing by using cross multiplication:

$\frac{0.5}{1} =\frac{x}{110}$

By cross multiplying we get:

$55=x$

$x=55\ cm$

Therefore, the length of the field on the drawing is 55 cm that is option D.

7 0

3 years ago

What is the slope of the line represented by the equation y = x – 3?

lyudmila [28]

What is the slope of the line represented by the equation?
C. 4/5

5 0

3 years ago

Read 2 more answers

May you all help me.I need to find this answer to help me study for my midterm test.I will give Brainliest.

Slav-nsk [51]

9514 1404 393

Answer:

x = 17
y = 26

Step-by-step explanation:

In the left problem, you use the fact that the sum of the segment lengths is equal to the overall length.

AC +CB = AB

(3x -4) +(x -2) = 62

4x -6 = 62 . . . . . collect terms

4x = 68 . . . . . . . add 6

x = 17 . . . . . . . . . . divide by 4

In the right problem, you use the fact that the sum of the angles is equal to the overall angle. Here, that overall angle is a linear angle, so measures 180°.

∠DFG +∠GFE = ∠DFE

(5y +3) +(2y -5) = 180

7y = 182 . . . . . . . . . . . . . . collect terms, add 2

y = 26 . . . . . . . . . . . . . . . .divide by 7

4 0

3 years ago

PLEASEE HELPPPP WILL GIVE BRAINLEAST IT IS URGENT!!!!

Alinara [238K]

Sorry if it’s wrong but i think it’s B
sorry if i got it wrong

6 0

3 years ago

Read 2 more answers