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tatiyna
3 years ago
5

(7x2 + 3x + 9) + (2x2 + 5x – 2)

Mathematics
1 answer:
Ludmilka [50]3 years ago
5 0

Answer:

8x + 25

Step-by-step explanation:

7 * 2 + 3x + 9 = 3x + 23

2 * 2 + 5x - 2 = 5x + 2

<u>3x + 23</u> + <u>5x + 2</u> = 8x + 25

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You are hiking and are trying to determine how far away the nearest cabin is, which happens to be due north from your current po
Natali [406]

Answer:

101.98 yards.

Step-by-step explanation:

Please refer to the diagram that I drew (sorry for the messiness; I do not own a stylus and so I was using my mouse to try to draw it).

Since the triangle is a right triangle, you can use SOH CAH TOA. In this case, you are trying to figure out the opposite length, but you are given the adjacent. So, we will use tangent to solve this (TOA = Tangent, Opposite over Adjacent).

The angle is 22.6 degrees, and the tangent of the angle is equivalent to the opposite length, x, divided by the adjacent length, 245 yards.

tan(22.6) = x / 245

x / 245 = tan(22.6)

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Hope this helps!

6 0
3 years ago
Multiply (2x+1)(6x^2+8+9)
spayn [35]

Answer:

12x3+6x2+34x+17

Step-by-step explanation:

(2x+1)(6x2+8+9)

=(2x+1)(6x2+8+9)

=(2x)(6x2)+(2x)(8)+(2x)(9)+(1)(6x2)+(1)(8)+(1)(9)

=12x3+16x+18x+6x2+8+9

=12x3+6x2+34x+17

6 0
3 years ago
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