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Illusion [34]
3 years ago
5

Steps with answers please

Mathematics
2 answers:
BartSMP [9]3 years ago
5 0
8: D
9: A

Look at the line
olga55 [171]3 years ago
4 0

Answer:

8.D

9.A

Step-by-step explanation:

/

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The depth of a lake is 15.8 m.
lesya692 [45]

Answer:

16 m

Step-by-step explanation:

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3 years ago
Read 2 more answers
a home improvement store advertised 60 sq ft of flooring for $287 including an $80 installation fee write an equation to represe
Leno4ka [110]
60c+80=287

Let c stand for the cost of one square foot. with 60 square feet you get 60c. then add 80 for the installation fee.
6 0
3 years ago
Suppose that 200 students are randomly selected from a local college campus to investigate the use of cell phones in classrooms.
serious [3.7K]

Answer:

It would change to 0.04802

Step-by-step explanation:

from this question we have that n became 400

40% of 400

= 160

p* = 160/400

= 0.4

1 - p* =

= 1 - 0.4

= 0.6

at confidence level,

1 - 0.95

= 0.05

alpha/2 = 0.025

z= 1.96

<u>margin of error. E</u>

= 1.96 x √[(0.4 x 0.6)/400]

= 1.96 x 0.0245

= 0.04802

M.E = 0.04802

6 0
3 years ago
What changes when the parent function <img src="https://tex.z-dn.net/?f=f%28x%29%3Dx%5E2" id="TexFormula1" title="f(x)=x^2" alt=
Karolina [17]

9514 1404 393

Answer:

  • vertical stretch: the function value (f) is multiplied by the stretch factor
  • horizontal stretch: the variable (x) is divided by the stretch factor

Step-by-step explanation:

A stretch can be vertical, horizontal, or both.

Multiplying the function value by a factor greater than 1 will stretch the graph vertically.

Dividing the variable value by a factor greater than 1 will stretch the graph horizontally.

__

The graph is stretched by the factor according to how it is applied.

6 0
3 years ago
A triangle has angles in the ratio 3:10:2 what is the size of the largest angle x?
Annette [7]

Answer:

B

Step-by-step explanation:

let the angles be 3k,10k,2k

then 3k+10k+2k=180

15k=180

k=180/15=12

x=10k=10×12=120°

5 0
3 years ago
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