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butalik [34]
3 years ago
13

Branliest and 30 points

Mathematics
2 answers:
DedPeter [7]3 years ago
8 0
x^{2}
(\frac{3}{4})^{2}
\frac{3^{2}}{4^{2}}
\frac{9}{16}

x+y
11+6.4
17.4

w-z
9.5-2.8
6.7
nignag [31]3 years ago
3 0
1.
(3/4)^2 = (3/4)* (3/4)
(3/4)*(3/4)= 9/16

Final answer: 9/16

2.
11+6.4= 17.4

Final answer: 17.4

3.
9.5-2.8= 6.7

Final answer: 6.7
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10. If 9! is 362880, find 10!.
allochka39001 [22]

Answer:

  3628800

Step-by-step explanation:

10! = 10 × 9! = 10 × 362880

  = 3628800

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A number is multiplied by 10 by shifting the decimal point one place to the right. Here, that means appending a place-holder zero to the number.

4 0
3 years ago
A closed cylindrical can of fixed volume V has radius r.a) Find the surface area, S, as a function of r.b) What happens to the v
andrey2020 [161]

Answer:

Step-by-step explanation:

This question is incomplete; here is the complete question.

A closed cylindrical can of fixed volume V has radius r. (a) Find the surface area, S, as a function of r. (b) What happens to the value of S approaches to infinity? (c) Sketch a graph of S against r, if  V=10 cm³.

A closed cylindrical can of volume V is having radius r and height h.

a). Surface area of a cylinder is given by

S = 2(Area of the circular sides) + Lateral area of the can

S = 2πr² + 2πrh

S = 2πr(r + h)

b). Since surface area is directly proportional to radius of the can

S ∝ r

Therefore, when r approaches to infinity (r → ∞)

c). If V = 10 cm³ Then we have to graph S against r.

From the formula V = πr²h

10 = πr²h

h = \frac{10}{\pi r^{2}}

By placing the value of h in the formula of surface area,

S = 2\pi r(r+\frac{10}{\pi r^{2}})

Now we can get the points to plot the graph,

r       -2             -1         0       1            2

S    -13.72     -13.72     0    26.28    35.13

7 0
3 years ago
Alan washed 60 plates in 30 minutes. It took him 3 minutes to wash 6 plates. Is the number of plates washed in 3 minutes proport
timofeeve [1]

Answer:

Yes

Step-by-step explanation:

The numbers both multiplied by 10

3 -6

30-60

7 0
3 years ago
What does this expression mean when it says 2 less than five times a number
Zinaida [17]

Answer:

2 - 5x

Step-by-step explanation:

Answer is in the problem:

2 less than = 2 minus a number ( 2- )

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6 0
3 years ago
This assignment is due tomorrow please help :(
Mariulka [41]
The answer would be 9 units squared hope this helped(:
6 0
3 years ago
Read 2 more answers
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