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Viefleur [7K]
3 years ago
15

Question 2

Mathematics
1 answer:
DENIUS [597]3 years ago
8 0

9514 1404 393

Answer:

  1.05

Step-by-step explanation:

Following instructions, we have ...

  Z = (X -μ)/σ

  Z = (180 -159)/20 = 21/20

  Z = 1.05

The Z-score associated with the value 3 minutes is 1.05.

_____

<em>Additional comment</em>

About 14.7% of customers will be getting free coffee.

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- what is the circumference of a circle with radius of 14.6 cm? (Round to the nearest tenth.)
wlad13 [49]

   

c = 2 × 14.6 × π = 29.2 × 3.141592 = 91.7344864 ≈ 91.7

Correct anawer:  B



6 0
3 years ago
If a line falls on the points (3, 1) and (9,5), what is its slope? Enter your
Anvisha [2.4K]
<h3>Answer:  2/3</h3>

============================================================

Use the slope formula to get that answer

m = (y2-y1)/(x2-x1)

m = (5-1)/(9-3)

m = 4/6

m = 2/3

We have a rise of 2 and a run of 3.

In other words, we move up 2 and over to the right 3.

7 0
2 years ago
Scan domain, range and graph of the following functions:
FinnZ [79.3K]
Sorry can't include the graphs, just subsitute y for f(x) and graph by subsituting values


so domain is the set of numbers you are allowed to use
range is the set of number you get from inputing the numbers from the domain into the function


so normally the domain is all real numbers
you must exclude number from the domain that make mathematical  undifined impossible stuff exg dividing by zero so
not sure about the ranges so I will leave that out


a. denomenator is x-2
cannot be zero
x-2=0
add 2
x=2

domain: all real numbers except for 2




b. x+2=deomenator
x+2=0
subtract 2
x=-2
x acannot be -2

domain: all real numbers except for -2

c
x cannot be 0
domain: all real numbers except for 0


d. x cannot be -1
domain: all real numbers except for -1


e: x cannot be a negative number or 0
domain: all real numbers greater than zero


f: x cannnot be -2
domain: al real numbers except -2

g: x cannot be 0
domain: all real number except 0

h: x cannot be zero
domain: all real numbers except 0

i: x cannot be 1
doman: all real number except 1

j: 5x-2=0
add 2
5x=2
divide 5
x=2/5

x cannot be 2/5
domain: all real numbers except for 2/5


5 0
3 years ago
The equation for the line is y=mx+b, solve the equation for x instead of y. Then solve for x given that y=5,b=1, and m=2
love history [14]

Answer:

2

Step-by-step explanation:

5=2x+1 4=2x 2=x

4 0
3 years ago
2t + 8 is greater than or equal to -4 ( t + 1 ), whats the answer to the equation?
Natali [406]

Step-by-step explanation:

2t + 8 <u>></u> - 4( t + 1)

2t + 8 <u>></u> - 4t - 4

2t + 4t <u><</u> - 4 +8

6t <u><</u> 4

Divide both sides by 6

T <u><</u> <u>4</u><u> </u>

6

t <u><</u> <u>2</u><u> </u>

3

I think that is the answer

Hope it helps :)

Please be careful about the sign

7 0
3 years ago
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