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creativ13 [48]
3 years ago
11

-2.6f + 0.7f - 15 - 9

Mathematics
1 answer:
blsea [12.9K]3 years ago
5 0

Answer is

-2.6f + 0.7f - 15 - 9= -1.9f-24

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Please help with geometry
Mamont248 [21]
A regular decagon has 10 equal sides. An apothem is a perpendicular bisector to the side.  This means 2 equal right triangle are formed on each side (20 equal right triangles) or 10 equal isosceles triangles.

Using the 10 equal isosceles triangles and A = .5(base)(height)
Base is a side and height is apothem
Area of regular decagon = 10 × .5 × 8 × 12.3 = 492.0 yd²

Answer: 492.0 yd²
6 0
4 years ago
What’s the answer for this question
Masteriza [31]

Answer:

x=28

Step-by-step explanation:

degrees of a triangle is always 180

2x+3x=5x

5x - 10 + 50

5x + 40

180 - 40 = 140

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5 0
3 years ago
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3×2=6<br> 4×2=8+6=14<br> 5×2=10+14=24<br> 6×2?
Alex Ar [27]
I don’t know if this is a trick question but 6 times 2 is 12.
4 0
3 years ago
128x³y⁴-56x²y²-72x⁴y² by 16x²y
nekit [7.7K]

Answer:

Step-by-step explanation:

yhgvuvuvuynfyftfjtgfyjgfftyf

3 0
3 years ago
What is the first step in solving the system shown using the shown using the elimination method? (3x - 12y = 5 | 3y - x = 9 A. M
sashaice [31]

Answer: OPTION C.

Step-by-step explanation:

Given a System of equations, you can use the Elimination Method to solve it by transforming the system in order to cancel out one of the variables. But first, the terms of both equations must be written in the same order.

To cancel out one of the variables, the coefficients must be opposites, which means that one must be positive and the other one must be negative.

Given the following  System of equations:

\left \{ {{3x - 12y = 5} \atop {3y - x = 9} \right.

You can notice that the order of the terms is not the same, so, if you want to use the Elimination Method to solve the system of equations,  the first step you must apply is to rewrite the equations so like variable terms are in the same order.

Then:

\left \{ {{3x - 12y = 5} \atop {-x+3y = 9} \right.

5 0
3 years ago
Read 2 more answers
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