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WITCHER [35]
2 years ago
11

It is customary to give a 15% tip for a meal at a restaurant. what is 15% of $64.40

Mathematics
1 answer:
alex41 [277]2 years ago
7 0

Answer:

$9.66 isb15% of $64.40

Step-by-step explanation:

64.40×15%

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11. 6.2 m B 1.8m Calculate the value of x. NOT TO SCALE​
soldier1979 [14.2K]

Answer:

24.19

Step-by-step explanation:

\tan(x)  =  \frac{6.2}{13.8}  \\  x =   {  \tan}^{1}  \frac{6.2}{13.8}  \\ x = 24.19320899

or the value of x can be 24.20

3 0
2 years ago
A data value is considered​ _______ if its​ z-score is less than minus2 or greater than 2.
elena-14-01-66 [18.8K]

Answer:

Unusual

Step-by-step explanation:

we know that

The z-score is a measure of how close the given data point is to the mean of the values given with the standard deviation

so

if its z-score is greater than or equal to -2, or less than or equal to 2., then the data value is considered ordinary

if its z-score is less than -2 or greater than 2, then the data value is considered unusual

5 0
3 years ago
Find the average rate of change of each function over the interval [0, 2]. Match each representation with its respective average
marishachu [46]
Average rate of change over interval [a,b]: r=[f(b)-f(a)]/(b-a)
In this case the interval is [0,2], then a=0, b=2
r=[f(2)-f(0)]/(2-0)
r=[f(2)-f(0)]/2

1) First function: h(x)
r=[h(2)-h(0)]/2
x=2→h(2)=(2)^2+2(2)-6
h(2)=4+4-6
h(2)=2
x=0→h(0)=(0)^2+2(0)-6
h(0)=0+0-6
h(0)=-6
r=[h(2)-h(0)]/2
r=[2-(-6)]/2
r=(2+6)/2
r=(8)/2
r=4

2) Second function: f(x)
A function, f, has an
x-intercept at (2,0)→x=2, f(2)=0
and a y-intercept at (0,-10)→x=0, f(0)=-10
r=[f(2)-f(0)]/2
r=[0-(-10)]/2
r=(0+10)/2
r=(10)/2
r=5

3) Third function: g(x)
r=[g(2)-g(0)]/2
From the graph:
g(2)=6
g(0)=2
r=(6-2)/2
r=(4)/2
r=2

4) Fourth function: j(x)
r=[j(2)-j(0)]/2
From the table:
x=2→j(2)=-8
x=0→j(0)=4
r=(-8-4)/2
r=(-12)/2
r=-6

Answer:
Pairs
1) h(x)     4
2) f(x)      5
3) g(x)     2
4) j(x)     -6
8 0
4 years ago
What is 5 -( -9) = ?
aleksandr82 [10.1K]
14 because a negative minus a negative is a positive; you add a line and change the sign
8 0
3 years ago
Read 2 more answers
I need help on this! ASAP
strojnjashka [21]

Answer:

-2

Step-by-step explanation:

Good luck! :)

3 0
3 years ago
Read 2 more answers
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