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g100num [7]
3 years ago
6

What is 2.8 x 10^-4 in standard form?

Mathematics
1 answer:
anzhelika [568]3 years ago
6 0
Here is your answer:

Its scientific notations:

Its negative so your going to the left:

2.8×10^-4
=0.000028
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A storage tank holds 235,500 in^3 of a chemical. The chemical is dispensed to completely fill 25 identical cylindrical container
ololo11 [35]
Volume of a cylinder is given by V = πr^2h

Since the content of the storage tank completely filled the 25 identical cylinders, this means that the volume of the 25 cylinders combined is equal to the volume of the storage tank.

25(πr^2h) = 235,500
πr^2h = 235,500/25 = 9,420
h = 9,420/(3.14 x 5^2) = 9,420/78.5 = 120.

Therefore, the height of the cylinderical containers is 120 in
8 0
3 years ago
Read 2 more answers
Write a trinomial whose binomial factors contain constant terms that sum to −11 and have a product of 18.
yaroslaw [1]

Answer:

The answer is (x - 9)(x - 2), or x2 - 11 + 18.

Step-by-step explanation:

Well, think about it. What two numbers add to -11 and multiply to get 18? -9 and -2 add to get -11 and multiply to get 18.

8 0
3 years ago
HELP ASAP!!!! simplify 3^2-4/5
My name is Ann [436]

Answer:

9-4/5

5/5 = 1

Step-by-step explanation:

6 0
3 years ago
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20% of the spectators at a tennis match were women. 10% of them were girls, 30% are boys, and the remaining 3,600 spectators are
Finger [1]
So 100% - 20% - 10% - 30% = 40%
40% of people were men. It says that there were 3600 men and in order to find the total amount of people, do 3600/40% or 3600/.4
Which equals 9000
4 0
4 years ago
Can somebody help me find the surface area of this
-Dominant- [34]

Answer:

G. 7600 cm^{2}

Step-by-step explanation:

Step 1: Deconstruct the shape

2 rectangles with dimension of 50 cm x 20 cm

2 rectangles with dimension of 40 cm x 20 cm

2 rectangles with dimension of 40 cm x 50 cm

Step 2: Find surface area of the shapes

2(50 x 20) = 2000 cm^{2}

2(40 x 20) = 1600 cm^{2}

2(40 x 50) = 4000 cm^{2}

Step 3: Add the surface areas together

2000 + 1600 + 4000 = 7600 cm^{2}

Therefore the surface area is 7600 cm^{2} and the answer is G.

4 0
3 years ago
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