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nataly862011 [7]
3 years ago
12

I need help anybody ?

Mathematics
1 answer:
nasty-shy [4]3 years ago
6 0

Answer and Step-by-step explanation:

Simply use the Pythagorean Theorem to solve.

The Pythagorean Theorem is used to solve for a side in right triangles.

A^{2} +B^{2}= C^{2}

<u>Plug the sides values into the equation.</u>

A^{2} + 13^2 = 20^2\\\\A^2 + 169 = 400\\\\A^2 = 231\\\\A = 15.1987<- This is the answer.

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

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A deadly bacteria doubles in size every 3 hour. If there were initially 14 spores present, how long will it take for the number
Len [333]
1792=3x+14
I’m not sure that’s all the way correct
7 0
2 years ago
Please answer asap! show work!<br> 11. What is (f.g)(x)?<br> f(x) = x3 +3<br> g(x) = 2x2 + x - 1
Ksenya-84 [330]

Answer:

<u>2x⁵ + x⁴ - x³ + 6x² + 3x - 3</u>

Step-by-step explanation:

Given :

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Finding (f × g)(x) :

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6 0
2 years ago
Solve for m. 2= m/2 - 7 whats the answer?
xz_007 [3.2K]
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Here, the variable is
- divided by 2
- has -7 added.

In reverse order, we undo these operations by
- adding 7
- multiplying by 2.

Whatever we do to one side of an equation, we must also do to the other side. That is how the equal sign remains valid.

2 = m/2 -7
2 +7 = m/2 -7 +7 . . . . . add 7
9 = m/2 . . . . . . . . . . . . simplify
2*9 = 2*m/2 . . . . . . . . multiply by 2
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The answer is m = 18.

_____
Check:
.. 2 = 18/2 -7
.. 2 = 9 -7 . . . . . . . true. The answer checks OK.
7 0
3 years ago
The angle of elevation of the top of the tower from a point on the ground is 30 degree, If the height of the tower is 40 space m
kiruha [24]

Answer:

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So, the distance between the tower and the point is equal to 40\sqrt3\ m.

7 0
3 years ago
Tanya opened a savings account with a deposit of 550.she deposited 450 in the first week and withdrew $120in the second week of
Afina-wow [57]
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8 0
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