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3 years ago

Please someone help me please!I'm struggling and I'll give extra point's!

Mathematics

1 answer:

zheka24 [161]3 years ago

6 0

Calculate the zero function using the location of the x-intercept.

Plot the point of the linear functions.

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26. Write the equation of the line passing through 2.-4) and parallel to the line y = 3x -2

harina [27]

Hey there! :)

Answer:

y = 3x -10

Step-by-step explanation:

An equation being parallel to the line y = 3x - 2 must contain the same slope, or 3.

Therefore:

Plug in the coordinate points into the formula y = mx + b along with the slope:

-4 = 3(2) + b

-4 = 6 + b

Subtract 6 from both sides:

b = -10.

Rewrite the equation in slope-intercept form:

y = 3x -10. This is the line that is parallel and passes through (2, -4).

6 0

3 years ago

Your bill at a restaurant is $35.00. There is an 8% meals tax (sales tax).

Alekssandra [29.7K]

Answer:

8/100×35.00=2.8

20/100×35.00=7

total is 9.8

5 0

3 years ago

2 1/4 X 1 2/3 x 1/6<br>calculate and write as a mixed number<br>will mark brainliest

cestrela7 [59]

Step-by-step explanation:

everything can be found in the picture

3 0

3 years ago

Suppose that the speeds of cars travelling on California freeways are normally distributed with a mean of 61 miles/hour. The hig

cricket20 [7]

Answer:

The standard deviation of the speeds of cars travelling on California freeway is 6.0088 miles per hour.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by

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

After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we This p-value is the probability that the value of the measure is greater than X.

In this problem, we have that:

Suppose that the speeds of cars travelling on California freeways are normally distributed with a mean of 61 miles/hour. This means that $\mu = 61$ .

The highway patrol's policy is to issue tickets for cars with speeds exceeding 75 miles/hour. The records show that exactly 1% of the speeds exceed this limit. This means that the pvalue of Z when $X = 75$ is 0.99. This is $Z = 2.33$