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Snowcat [4.5K]
4 years ago
9

Geometry(please help on 1 and 2)

Mathematics
1 answer:
wel4 years ago
8 0

Answer:

1. C

2. B

Step-by-step explanation:

1. Remember your rules for rotating. When you're rotating 180 degrees (x,y) --> (-x,-y), this means that you flip your signs. So for example, (10, -3) turns into (-10, 3) the only thing you're changing are your signs.

2. Once again, remember your rules for rotating. When rotating 90 degrees clockwise flip your x and y, and change the sign of x. So (x,y) --> (y, -x). So for example, (13, 5) --> (-5, 13)

At the end of the day, this all comes down to knowing your rules and practicing. I promise you it gets easier. Good luck!

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How does the job satisfaction score for weeks 5-8 compare to weeks 1-4?
MrRa [10]

The correct comparison for Weeks 5-8 is higher than Week 1-4, hence, the job satisfaction for Week 5-8 is 17% higher.

<u>Job Satisfaction Score</u> :

  • Week 1 = 3.50
  • Week 2 = 3.40
  • Week 3 = 3.30
  • Week 4 = 3.60
  • Week 5 = 4.20
  • Week 6 = 4.00
  • Week 7 = 4.10
  • Week 8 = 3.90

<u>Job Satisfaction for week 1 - 4</u> :

  • Week 1 + Week 2 + Week 3 + Week 4
  • (3.50 + 3.40 + 3.30 + 3.60) = 13.80

<u>Job Satisfaction for Week 5 - 8</u> :

  • Week 5 + Week 6 + Week 7 + Week 8
  • (4.20 + 4.00 + 4.10 + 3.90) = 16.20

<u>Difference</u><u> between the two categories</u> :

[(Week 5 - 8) - (Week 1-4)] / Week 1-4] × 100%

(16.20 - 13.80) / 13.80 × 100%

(2.4 / 13.80) × 100%

0.1739 × 100%

= 17.39%

Therefore, the job satisfaction for Week 5 - 8 is about 17% higher than Week 1 - 4

Learn more :brainly.com/question/13218948

8 0
3 years ago
A true-false examination was constructed with the answers running in the following sequence: T F F T F T F T T F T F F T F T F T
julia-pushkina [17]

Answer:

yes

Step-by-step explanation:

lets use a significance level of = 0.1

<u> Determine if the sequence indicates randomness </u>

First step :

H0 : pattern is random

H1 : pattern not random

n1 ( number of true answers ) = 10

n2 ( number of false answers ) = 10

also number of runs for T = 5

       number of runs for F = 5

Total number of runs = 5+ 5 = 10

Given that critical value at 0.05 = 23

we will reject the null hypothesis ( i.e the sequence departs from randomness )

3 0
3 years ago
PLease answer!!! 30 points!!!
Agata [3.3K]

Answer:

a

Step-by-step explanation:

They make a right angle. A right angle adds up to 90.

7 0
3 years ago
Read 2 more answers
Two angles are vertical angles. One measures 39.2 degrees. What is
Zarrin [17]

Answer:

39.2°

Step-by-step explanation:

Vertical angles are always congruent.

7 0
3 years ago
Read 2 more answers
Please help, Thanks.
Evgen [1.6K]

Answer:

C

Step-by-step explanation:

49x² + 28xy + 4y² ← is a perfect square of the form

(ax + by)² = a²x² + 2abxy + b²y²

49 = 7² ⇒ a = 7 and 4 = 2² ⇒ b = 2

2ab = 2 × 7 × 2 = 28

Hence

49x² + 28xy + 4y² = (7x + 2y)²

with factor 7x + 2y ⇒ C

8 0
3 years ago
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