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mina [271]
3 years ago
7

Help with this one!!! Show steps please:)

Mathematics
2 answers:
podryga [215]3 years ago
7 0

Answer:

$7.20

Step-by-step explanation:

18%·$40 =

= 18·$40/100

= $720/100

= $7.20

Ymorist [56]3 years ago
4 0
<h3>Answer:  7.20</h3>

Work Shown:

18% = 18/100 = 0.18

18% of 40 = 0.18*40 = 7.20

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What is the distance between (-3, 4) and (4, 4)
svetoff [14.1K]

Answer:

7 units

Step-by-step explanation:

\sqrt{|-3-4|^{2}-|4-4|^{2}}

=7

3 0
4 years ago
Read 2 more answers
?/? X 45 = 4/5 of ? = ?
Stells [14]

Step-by-step explanation:

\frac{4}{5} of \: x = 45 \\  \frac{4}{5}  \times x = 45 \\ cross \: multiply

\frac{4x}{5}  = 45 \\ 4x = 45 \times 5 \\ 4x = 225 \\ divide \: both \: sides \: by \: 4

\frac{4x}{4}  =  \frac{225}{4}  \\ x = 56.25

3 0
3 years ago
Can any one help me??????
stepan [7]
First One! All you have to do is count the example and see if there is a match!
4 0
3 years ago
I need help fast <br><br>given f(x)=+3and g(x)=13x-5,what is f(4)+g(-2)
Travka [436]
I hope this helps you



x=4


f (4)=4+3


f (4)=7


x= -2


g (-2)=13. (-2)-5


g (-2)= -26-5


g (-2)= -31


f (4)+g (-2)= 7 -31= -24
4 0
3 years ago
A sample of 30 distance scores measured in yards has a mean of 7, a variance of 16, and a standard deviation of 4. You want to c
Nikolay [14]

Answer:

21, 144, 12

Step-by-step explanation:

Given that a sample of 30 distance scores measured in yards has a mean of 7, a variance of 16, and a standard deviation of 4.

Let X be the distance in yard.

i.e. each entry of x is multiplied by 3.

New mean variance std devition would be

E(3x) = 3E(x) = 21

Var (3x) = 3^2 Var(x) = 9(16) =144

Std dev (3x) = \sqrt{144 } =12

Thus we find mean and std devition get multiplied by 3, variance is multiplied by 9

4 0
3 years ago
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