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Artemon [7]
2 years ago
8

Simplify the following expression: 7y + 2x − 10y + 3x2 − 10x

Mathematics
1 answer:
Tpy6a [65]2 years ago
5 0
What is the sign of the 2?
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Can someone please help me????? Please I'm not good with Geometry
Otrada [13]

The hurdle and runner form a right triangle (see attached picture) such that

sin(30°) = <em>h</em> / (5 ft)

and

cos(30°) = <em>x</em> / (5 ft)

where <em>h</em> is the height of the hurdle and <em>x</em> is the horizontal distance from where the runner jumps to the hurdle. So

<em>h</em> = (5 ft) sin(30°) = 5/2 ft = 2.5 ft

<em>x</em> = (5 ft) cos(30°) = (5√3)/2 ft ≈ 4.33 ft

6 0
2 years ago
Question 5 (1 point)
riadik2000 [5.3K]

Answer:

The area of sector AOB is 75.36 unit²

Step-by-step explanation:

Consider the provided information.

Circle O with minor arc AB=60 degrees and OA =12.

We need to find the area of sector.

Area of the sector: A=\frac{\theta }{360} \times \pi r^2

Substitute \theta=60 and r =12 in above formula.

A=\frac{60}{360} \times 3.14\times (12)^2

=\frac{1}{6} \times 3.14\times 144

=24\times 3.14

=75.36

Hence, the area of sector AOB is 75.36 unit²

8 0
3 years ago
Factor this trinomial.<br> x2 + 2x-3
andre [41]

Answer:(x-1) (x+3)

Step-by-step explanation:

Hope this helps!

4 0
3 years ago
5. Solve y = ab - x for b.
ivanzaharov [21]
Here is your answer ⬇️
7 0
3 years ago
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I want to cancel my subscription effective immediately !!!
krok68 [10]

Lol, wydm???????????????????

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