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klio [65]
2 years ago
7

What is 4× 10 in standard notation

Mathematics
2 answers:
Nutka1998 [239]2 years ago
8 0
4 × 10×10×10×10×10
4×100000
400000
stiv31 [10]2 years ago
4 0
400000 since you move the decimal 5 places to the right
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A water storage tank is in the shape of a hemisphere​ (half a​ sphere). If the radius is 20 ​ft, approximate the volume of the t
otez555 [7]

Answer:

The approximate volume of the tank is V=16,747\ ft^{3}

Step-by-step explanation:

we know that

The volume of a hemisphere (water storage tank) is equal to

V=\frac{4}{6}\pi r^{3}

we have

r=20\ ft

assume

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substitute

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3 years ago
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2 years ago
Find all roots.<br> 11) x^3 + 6x² + 5x = 0
Dmitrij [34]

Answer:

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x=-1

x=-5

Step-by-step explanation:

To find the roots, we set the equation equal to zero and factor.

x(x²+6x+5)=0           [factor]

x(x+1)(x+5)=0            [set each factor equal to 0]

x=0

x+1=0                       [subtract both sides by 1]

x=-1

x+5=0                      [subtract both sides by 5]

x=-5

Now, we have found three roots, x=0, x=-1, x=-5.

5 0
2 years ago
Solve for u.<br><br> 10 + 6u = 7u<br><br> u =
slega [8]

Answer:

u = 10

Step-by-step explanation:

10 + 6u = 7u

10 = u

Just subtract 6u on both sides.

8 0
3 years ago
Read 2 more answers
Bradley is 27 years older than Madison. Seven years ago, the sum of their age was 59. How old are they now?
Valentin [98]

Answer:

bradley is 50 and madison is 23

Step-by-step explanation:

m + 27 = b

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[(m + 27) - 7] + (m - 7) = 59

m + 20 + m -7 = 59

2m + 13 = 59

2m = 46

m = 23, b = 23 + 27 = 50

6 0
2 years ago
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