3 years ago

Which answer choice is right

Mathematics

2 answers:

scoray [572]3 years ago

6 0

Answer:

Step-by-step explanation:

When solved for x= -1<x<1

valina [46]3 years ago

4 0

Answer:

Step-by-step explanation:

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Please tell fast plzzzzzz

Varvara68 [4.7K]

Answer:

72 degrees

Step-by-step explanation:

let the ratio be 2x and 3x

2x + 3x =180° ( co interior angles )

5x = 180°

x = 180 ÷ 5

x = 36°

And the smaller angle = 2 × 36° = 72°

5 0

3 years ago

To estimate the mean of a population with unknown distribution shape and unknown standard deviation, we take a random sample of

Naddika [18.5K]

Answer:

$t_{critical} = \pm 1.7793$

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 64

Sample mean = 22.3

Sample standard deviation = 8.8

We want to estimate 92% confidence interval.

92% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

Degree of freedom = n - 1 = 63

$t_{critical}\text{ at degree of freedom 63 and}~\alpha_{0.01} = \pm 1.7793$

$22.3 \pm 1.7793(\dfrac{8.8}{\sqrt{64}} ) = 22.3 \pm 1.95723 = (20.34,24.26)$

7 0

3 years ago

Need help ASAP. What is 4h-h divided by 6 = 7h-h pls HELP

Mariulka [41]

Answer:

h=0

Step-by-step explanation:

h=0

6 0

3 years ago

All insurance policies have a cash or loan value, True Folie

pishuonlain [190]

Answer:

false

Step-by-step explanation:

7 0

4 years ago

Read 2 more answers

Evaluate 4(x+5)(2+1) (2+3)(2-3) for x = 5.

zaharov [31]

Answer:

-600

Step-by-step explanation:

4 x 10 x 3 x 5 x -1

40 x 15 x -1

600 x -1 = -600

7 0

2 years ago

Which answer choice is right​

Which answer choice is right