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jeka57 [31]
2 years ago
12

Factor. EXAMPLE: (a+2)(5-3) 2n^2 +6n-108

Mathematics
1 answer:
iVinArrow [24]2 years ago
5 0
(a+2)(5-3)2n^2+6n-108

4an^2 + 8n^2 + 6n - 108 is your answer I believe.
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A sound receiving dish used at outdoor sporting events is constructed in the shape of a paraboloid, with its focus 8 inches from
bixtya [17]

Answer:

w≅8.46ft

Step-by-step explanation:

Data

focus=8

vertex=(0,0)

width=?

depth (y)=3ft

parabola equation: (x-h)^{2}=4p(y-k); then for V=(0,0), x^{2} =4py, be focus(f)=8in;  x^{2} =4*8*y=32y → y=\frac{x^{2} }{32}

we have that y=3ft then 3=\frac{x^{2} }{32}; but 1in≅0.083ft so x^{2} =3*32*0.083=7.968 → x=±2.82, finally w=3*2.82≅8.46ft

6 0
2 years ago
Leah and Dan are trying to prove that the triangles below are congruent. Leah says they are congruent by the AAS congruence crit
Masteriza [31]
Answer: Leah is correct, it’s AAS

Explanation: angle C = angle N
angle B = angle M
AB = LM
ABC = LMN, alternate interior angles of parallel lines are congruent
4 0
2 years ago
Which expression is equivalent to −(4−3) ?
Fittoniya [83]

The answer would be B

5 0
3 years ago
Read 2 more answers
In the diagram below AFB is congruent to EFD if EFD = 5x + 6, DFC = 19x - 15, and EFC = 17x + 19, find AFE
yanalaym [24]

The angle m∠AFE is 128 degrees.

<h3>How to find angles?</h3>

∠AFB ≅ ∠EFD

∠EFD = 5x + 6

m∠DFC = (19x - 15)°

m∠EFC = (17x + 19)°

m∠AFE = ?

m∠AFB + m ∠EFD + m∠AFE = 180

Therefore,

5x + 6 + 5x + 6 + m∠AFE = 180

5x + 5x + 6 + 6 + m∠AFE = 180

10x + 12 + m∠AFE = 180

10x + m∠AFE = 180 - 12

10x + m∠AFE  = 168

m∠AFE = 168 - 10x

m∠EFC =  m ∠EFD + m∠DFC

17x + 19 = 5x + 6 + 19x - 15

17x - 5x - 19x = 6 - 15 - 19

-7x = - 28

x = 28 / 7

x = 4

Therefore,

m∠AFE = 168 - 10x

m∠AFE = 168 - 10(4)

m∠AFE = 168 - 40

m∠AFE = 128°

Therefore, the angle m∠AFE = 128°

learn more on angles here: brainly.com/question/13212279

#SPJ1

7 0
1 year ago
What is the answer for 7/5=g-6/5
Nataly [62]

Answer:

13/5

Step-by-step explanation:

g=7/5+6/5

g=13/5

8 0
3 years ago
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