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Stella [2.4K]
3 years ago
9

4 / 500 in scientific notation would be?

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
3 0
4/500=0.008

scientific notation form = 8 x 10^9
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A swimming pool can be filled in 18 hours if water enters through a pipe​ alone, or in 25 hours if water enters through a hose a
pychu [463]
I am not sure, but this is what I got:
 <span>Pipe ALONE = 18 hours 

Pipe ALONE in 1 hour = 1/18 of the pool 

Hose ALONE in 1 hour = 1/25 of the pool 

TOGETHER in 1 HOUR = 1/18 +1/25 = 43/450 

TOGETHER they will fill the pool in 450/43 hours 

So 5/6 of the pool will take 5/6 X 450/43 = 2250/ 258 = 8.7209302 hours OR 

8 hours AND 43.26 minutes ANSWER
</span>
Hope this helps!


6 0
3 years ago
PLS HELP!!
lord [1]

Answer:

The height of the cone-shaped cup is 6 inches and the diameter at the top is 3 inches. ... To find the volume of the cone, you use a formula similar to that of a pyramid, ... \begin{align*}V & = \frac{1}{3} \pi r^2 h \\ V & = \frac{1}{3} (3.14)(5^2 )(7) ... The answer is the volume of the cone is 183.16 cubic inches.

Step-by-step explanation:

i think thats it it was right on gogle

5 0
3 years ago
Building and reduce<br><br>1/2 = / 10​
Vladimir [108]

Answer: 5/10

Explanation: Compare the denominators. Since 2 ⋅ 5 = 10, multiply the numerator 1 by 5 to get 5.

7 0
2 years ago
Find angles b,c and d
Mazyrski [523]

Answer:

B = 73°, c = 107°, d= 107°

Step-by-step explanation:

b + 107 \degree = 180 \degree..(straight \: line \:  \angle s) \\ b = 180 \degree - 107 \degree \\  \huge \red{ \boxed{b = 73 \degree}} \\  \\ \huge \purple{ \boxed{c = 107 \degree }}\\..(vertical \:  \angle s) \\  \\ \huge \orange{ \boxed{d = 107 \degree }}\\..(corresponding \:  \angle s) \\  \\

8 0
3 years ago
Mary wants to fill in a cylinder vase. At the flower store they told her that the vase should be filled 3/4 for the flowers to l
Nimfa-mama [501]

Answer: 376.98192 mL

Step-by-step explanation:

We are going to use this equation.

V  = π  *  r²  * h

according to the question we have the value for r and h, if you replace the values into the equation we will get  following product:

note: also keep in mind that value of π is 3.141516

V  = π  *  r²  * h

V  = π  *  (4in)²  * (10in)

V = 502.64256 in³

after we can divide this value in 4 equals parts

then  we get the following equation:

502.64256 in³ / 4 = 125.66064 in³

after that that you can multiply this value by 3 to get the 3 parts of the cylinder vase for example:

125.66064 in³ * 3 = 376.98192 in³

and this result is the volume of water that we have to pour into the vase

8 0
3 years ago
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