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4 years ago

14

Geometry question 3, Thanks if you answer or help!

1 answer:

shepuryov [24]4 years ago

4 0

Answer:

67°

Step-by-step explanation:

Angles on a straight line add to 180, so:

A + D = 180

D = 180 - A

D = 180 - 113

D = 67

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Why is 21/100 greater than 1/5

storchak [24]

Because 21 is more than 1

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3 years ago

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g Suppose you wish to perform a hypothesis test for a population mean. Suppose that the population standard deviation is known,

NikAS [45]

Answer:

z-test.

Step-by-step explanation:

We want to perform an hypothesis test for a population mean.

In the case that the <u>standard deviation of the population is known</u> and the population distribution is normal, even if the sample is small, <u>we will use a z-test</u>.

The usual case is to not know the standard deviation of the population, in which case a t-test is adequate instead of a z-test, taking into account the degrees of freedom of the sample.

5 0

3 years ago

What is the answer???

vagabundo [1.1K]

Answer:

3. $\displaystyle x-intercept: [-4\frac{1}{2}, 0] \\ y-intercept: [0, -9] \\ Slope-Intercept\:Form: y = -2x - 9$

2. $\displaystyle x-intercept: [5, 0] \\ y-intercept: [0, 1] \\ Slope-Intercept\:Form: y = -\frac{1}{5}x + 1$

1. $\displaystyle x-intercept: [4, 0] \\ y-intercept: [0, -3] \\ Slope-Intercept\:Form: y = \frac{3}{4}x - 3$

Step-by-step explanation:

−2x - y = 9

x-intercept → Plug in 0 for <em>y</em><em> </em>to get −4½ for <em>x</em>

y-intercept → Plug in 0 for <em>x</em><em> </em>to get −9 for <em>y</em>

−2x - y = 9

+ 2x + 2x

_________

$\displaystyle \frac{-y}{-1} = \frac{2x + 9}{-1}$

$\displaystyle y = -2x - 9 →$ <em>Slope-Intercept</em><em> </em><em>Form</em>

_______________________________________________

x + 5y = 5

x-intercept → Plug in 0 for y to get 5 for x

y-intercept → Plug in 0 for x to get 1 for y

x + 5y = 5

- x - x

_________

$\displaystyle \frac{5y}{5} = \frac{-x + 5}{5}$

$\displaystyle y = -\frac{1}{5}x + 1 →$ <em>Slope-Intercept Form</em>

_______________________________________________

3x - 4y = 12

x-intercept → Plug in 0 for y to get 4 for x

y-intercept → Plug in 0 for x to get −3 for y

3x - 4y = 12

- 3x - 3x

_________

$\displaystyle \frac{-4y}{-4} = \frac{-3x + 12}{-4}$

$\displaystyle y = \frac{3}{4}x - 3 →$ <em>Slope-Intercept Form</em>

I am joyous to assist you anytime.

4 0

4 years ago

Square root of 1.9321

Ann [662]

The answer to square root of 1.9321 is - 1.39

6 0

4 years ago

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Lena took a total of 10 quizzes over the course of 2 weeks. How many weeks of school will

monitta

The answer would be 3 weeks

8 0

3 years ago