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2 years ago

PLEASE HELP!!! URGENT!!!!

Mathematics

2 answers:

kifflom [539]2 years ago

7 0

Answer:

80 degrees

Step-by-step explanatibecause its congruent to a suplementary angle

Naddika [18.5K]2 years ago

5 0

The size of angle x is 80.

reason:
angle CBD and ABC are a linear pair. this means u have to do 180-100, which is 80. angle ABC becomes 80 and since angle x and angle ABC are corresponding angles, this makes them congruent to each other. which means angle x is 80

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To run 12 miles, how many times must you run around a park that is 2 miles long and 1 mile wide?

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2 years ago

What is the quotient of d − 2 √ d 4 − 5 d 3 + d + 17

Tcecarenko [31]

Answer: $d^3 - 3d^2-5$

Step-by-step explanation:

For finding the quotient of the given division,

In the long division method, we will follow the following steps.

Step 1 : Here the divisor is d-2 and dividend is $d^4-5 d^3 + d + 17$

Multiply (d-2) by $d^3$ and subtract the dividend by the resultant.

We get $-3d^3+d$

Step 2: Multiply (d-2) by $-3d^2$ and subtract the remaining dividend by the resultant.

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2 years ago

The endpoints of a diameter of a circle are (-4,

aliya0001 [1]

<u>Answer:</u>

<u>Explanation:</u>

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2 years ago

What is the best definition of marginal cost?

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2 years ago

Read 2 more answers

In order to estimate the difference between the average hourly wages of employees of two branches of a department store, two ind

liberstina [14]

Answer:

Step-by-step explanation:

Hello!

You have two populations of interest and want to compare them. If you define the study variables as:

X₁: average hourly wages of an employee of the Downtown store.

n₁= 25

X[bar]₁= $9

S₁= $2

X₂: average hourly wages of an employee of the North Mall store.

n₂= 20

X[bar]₂= $8

S₂= $1

Both samples taken are independent, assuming that both populations are normal and that their population variances are equal I'll use the Student's-t statistic with a pooled sample variance to calculate the Confidence interval:

95% CI for μ₁ - μ₂

(X[bar]₁-X[bar]₂) ± $t_{n_1+n_2-2; 1-\alpha /2} * (Sa*\sqrt{\frac{1}{n_1} +\frac{1}{n_2} } )$