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Korvikt [17]
3 years ago
10

Help me out please?

Mathematics
1 answer:
Andrej [43]3 years ago
3 0

Answer:

y=-7/5x+15

refer to image

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Please help <3 i have a F in math
ikadub [295]

Answer:

5/6

Step-by-step explanation:

The slope is y change over x change so...

-2-3 over 1-7 which is -5 over -6 which is simplified to 5/6.

Hope this helps :D

3 0
3 years ago
What is 12.28 as a mixed number
kicyunya [14]
12.28 = 12 and 28 hundredths so its 12 \frac{28}{100}
Hope I helped!
5 0
3 years ago
find the standard deviation for this data set 9, 15, 13, 9, 15 round your answer to the nearest tenth
KatRina [158]

Answer:

  • 3.0

Step-by-step explanation:

Sample standard deviation is found by steps below.

<u>Find the mean:</u>

  • μ = (9 + 15 + 13 + 9 + 15)/5 = 12.2

<u>Find deviations from the mean and their squares:</u>

  • 9 - 12.2 = - 3.2 ⇒ (-3.2)² = 10.24
  • 15 - 12.2 = 2.8 ⇒ 2.8² = 7.84
  • 13 - 12.2 = 0.8 ⇒ 0.8² = 0.64
  • 9 - 12.2 = - 3.2 ⇒ (-3.2)² = 10.24
  • 15 - 12.2 = 2.8 ⇒ 2.8² = 7.84

<u>Sum the squares:</u>

  • 10.24*2 + 7.84*2 + 0.64 = 36.8

<u>Divide by N - 1 (N - number of samples):</u>

  • 36.8/(5 - 1) = 9.2

<u>Square root is the sample standard deviation:</u>

  • σ = √9.2 = 3.0 (rounded)
7 0
3 years ago
You are 5.5 feet tall, go to the park and want to know the height of a nearby tree. Using the measurements found, calculate the
PolarNik [594]

Answer:

20.8 im not a 100% sure so please dont get mad if not

Step-by-step explanation:

3 0
3 years ago
How do you increase 160 by 4%
vfiekz [6]

Step-by-step explanation:

160 + Percentage increase =

160 + (4% × 160) =

160 + 4% × 160 =

104 ÷ 100 × 160 =

104 × 160 ÷ 100 =

8 0
3 years ago
Read 2 more answers
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