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padilas [110]
3 years ago
6

Aubrey tried to prove that sin(θ)=cos(180°−θ) using the following diagram. Her proof is not correct.

Mathematics
1 answer:
alexira [117]3 years ago
4 0

Answer:

Angles ∠B and ∠C are complementary, not supplementary.

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he ratio of your monthly allowance to your friend’s monthly allowance is 5 : 3. Both of your monthly allowances total $40. How m
Elena-2011 [213]

Answer:

your allowance is $25 and your friends is $15

Step-by-step explanation:

40/8*3=15

40/8*5=25

6 0
2 years ago
Read 2 more answers
In the book Business Research Methods, Donald R. Cooper and C. William Emory (1995) discuss a manager who wishes to compare the
S_A_V [24]

Answer:

Null hypothesis is: U1 - U2 ≤ 0

Alternative hypothesis is U1 - U2 > 0

Step-by-step explanation:

The question involves a comparison of the two types of training given to the salespeople. The requirement is to set up the hypothesis that type A training leads to higher mean weakly sales compared to type B training.

Let U1 = mean sales by type A trainees

Let U2 = mean sales by type B trainees

Therefore, the null hypothesis (H0) is: U1 - U2 ≤ 0

This implies that type A training does not result in higher mean weekly sales than type B training.

The alternative hypothesis (H1) is: U1 - U2 > 0

This implies that type A training indeed results in higher mean weekly sales than type B training.

4 0
3 years ago
Solve for x: 2x + 3 + (-1) = x + 5
faust18 [17]

Answer:

x=3

Step-by-step explanation:

2x-x=5-3+1

x=3

I think that's it

5 0
3 years ago
1 millimeter on the map represents 1 meter on the ground. What is the ratio
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1mm:1m

since its just one to one, thats the ratio 
3 0
3 years ago
1. (10 points) Explain how to factor the following:
kap26 [50]

Answer:

A. 3m² + 4m + 1 = 0

3m² + 3m + m + 1 = 0

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( 3m + 1 ) (m + 1) = 0

B. 16n - 25

16n = 25

n = 25/16

6 0
2 years ago
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