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3 years ago

What is x=g/b2-4ac/2a

Mathematics

1 answer:

Alexandra [31]3 years ago

8 0

Hello there!

the answer is x= 2g/b-2a to the power 2 c

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Is urgent What is the equation of the line, in point-slope form, that goes through (2, -1)

Pavlova-9 [17]

Answer:

c. y + 1 = -⅕(x - 2)

Step-by-step explanation:

To write the equation in point-slope form, we need to know the slope (m) and coordinates of a point the line passes through.

The equation would be in the form of y - b = m(x - a).

(a, b) = (2, -1)

Since the line is perpendicular to y = 5x + 3, the slope will be the negative reciprocal of 5 which is -⅕

m = -⅕.

Substitute a = 2, b = -1, and m = -⅕ into y - b = m(x - a).

Thus:

y - (-1) = -⅕(x - 2)

y + 1 = -⅕(x - 2)

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3 years ago

Please help!<br> Am I right on part A and B?

Lera25 [3.4K]

Yes both are parts are correct

8 0

2 years ago

Read 2 more answers

A survey of 32 different gas stations in Texas found the average price of gasoline to be $3.19 a gallon with a sample standard d

Leni [432]

Answer:

The value of test statistic is -4.1247

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $3.26 a gallon

Sample mean, $\bar{x}$ = $3.19 a gallon

Sample size, n = 32

Sample standard deviation, σ = $0.096

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 3.26\text{ dollars a gallon}\\H_A: \mu < 3.26\text{ dollars a gallon}$

We use one-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{3.19 - 3.26}{\frac{0.096}{\sqrt{32}} } = -4.1247$

Thus, the value of test statistic is -4.1247

3 0

3 years ago

Select the correct answer.

Zigmanuir [339]

Answer:

E. 6

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Please help i will give brainliest to the first person that answers correctly

timurjin [86]

Answer:

From what i know your answer will be a.

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3 years ago