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Sav [38]
2 years ago
11

Q. What is 40% of 230?

Mathematics
2 answers:
Alona [7]2 years ago
7 0

Answer: 92

Step-by-step explanation:

solniwko [45]2 years ago
3 0

Answer:

Its 92 :D

Step-by-step explanation:

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Divide 9x^2 by 3x help please
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Factor the numerator and denominator and cancel the common factors.
The answer is 3x.
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My 7th grade daughter is felling math. How can I help her get better?
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Step-by-step explanation:


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3 years ago
A survey team is trying to estimate the height of a mountain above a level plain. From one point on the plain, they observe that
aliya0001 [1]

Answer:

5507.79 feet

Step-by-step explanation:

To find the height of the mountain, we can draw triangles as in the image attached.

Let's call the height of the mountain 'h', and the distance from the first point (31 degrees) to the mountain 'x'.

Then, we can use the tangent relation of the angles:

tan(34) = h/x

tan(31) = h/(x+1000)

tan(31) is equal to 0.6009, and tan(34) is equal to 0.6745, so:

h/x = 0.6745 -> x = h/0.6745

using this value of x in the second equation:

h/(x+1000) = 0.6009

h/(h/0.6745 + 1000) = 0.6009

h = 0.6009 * (h/0.6745 + 1000)

h = 0.8909*h + 600.9

0.1091h = 600.9

h = 600.9 / 0.1091 = 5507.79 feet

8 0
3 years ago
Value of the expression when n=3<br>-2n(5+n-8-3n)<br>​
Semenov [28]

Answer:

54

Step-by-step explanation:

Substitute n into the equation:

-2(3)[5+3-8-3(3)]

-6[-9]

+54

7 0
3 years ago
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