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ss7ja [257]
3 years ago
15

What is 21% of 90 estiamate

Mathematics
1 answer:
Fittoniya [83]3 years ago
8 0
18.9

or 19 if u want natural number

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What is the perimeter P of △DEF to the nearest whole number?
inna [77]

Answer:

Can you please tell me what is the area of the given triangle?

3 0
2 years ago
A store pays $840 for an oil painting. The store marks up the price by 46%. What is the amount of the mark-up? please help!!!! I
Setler [38]

Answer:

A store pays $840 for an oil painting. The store marks up the price by 46%. What is the amount of the mark-up?

=

$386.40

3 0
2 years ago
Bob sets the price of the plants according to their height in inches. A plant that is 9.5 inches high costs $2.28 in his store.
wel

Answer: $0.24

Step-by-step explanation:

9.5 inches --> $2.28
1 inch--->X
now cross multiply it and get,

9.5X = 2.28*1
X = 2.28/9.5

so its $0.24 per inch

4 0
1 year ago
What is the exact volume of the sphere?
sasho [114]
We know, Volume of a Sphere = 4/3 πr³
V = 4/3 * π * (12.3)³
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V = <span>2481.156π cm³

In short, Your Answer would be Option A

Hope this helps!</span>
6 0
3 years ago
Read 2 more answers
Solve without a calculator log_4(20)-log_4(45)+log_4(144)
AfilCa [17]
Log₄20-log₄ 45+log₄144=
log₄(20/45)+log₄144=                        (log_a b- log_a c=log_a  (b/c) )
log₄[(20*144)/45]=                             (log_a b +log_a c=log_a (b*c) )
log₄(2880/45)=
log₄(64)=n     ⇔      4^n=64                (log_a x=n   ⇔ a^n=x)

4^n=4³      ⇒n=3                                 (64=4*4*4=4³)

Answer: log₄20-log₄ 45+log₄144=3

5 0
2 years ago
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