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Bezzdna [24]
3 years ago
11

1. Factor. 4x2 + 20x

Mathematics
1 answer:
Assoli18 [71]3 years ago
4 0
1.
4x^2 + 20x
= 4x(x + 5)

2.
x^2 - 12x = 64
x^2 - 12x - 64 = 0
(x - 16)(x + 4) = 0
x - 16 = 0 or x + 4 = 0
x = 16 or x = -4
x = {-4, 16}
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Which is the slope of the line y= -3x + 2?​
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7 0
3 years ago
mr. larsen's third grade class has 22 students, 12 girls and 10 boys. two students must be selected at random to be in the fall
faust18 [17]

The probability that no boys will be chosen is 0.2857

What is probability?

The area of arithmetic called likelihood deals with numerical representations of the chance that an incident can occur or that a press release is true.

Main Body:

Total students =22

total boys = 10

total girls =12

Now we have to chose 2 girls from 12 , so combination is used to select ,

⇒¹²C₂

Also, We have to chose 2 girls from 22 students

so it can be represented as ,

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Probability of choosing 2 girls = ¹²C₂/²²C₂

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brainly.com/question/13604758

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5 0
1 year ago
A traffic helicopter descends at 127 m to be 338 m above the ground what was the original height of the helicopter let h be the
Agata [3.3K]

Answer:

Step-by-step explanation:

If the new height is 338m and the helicopter decended 127m to get to that new height then the original height is simply the sum of them both.

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4 0
2 years ago
I Really Need Help With This Please.
Flura [38]
ABC=DBC

(This will probably be a way more complex explanation than you need but it’s what I did.)

Okay so you know B=B because they’re both right angles. You know A=D because of the isosceles triangle theorem- if two sides of a triangle are congruent, then the angles opposite those sides are congruent. That leaves C=C. If B=B and A=D and all triangles add up to 180 degrees, C and C need to be the same.
6 0
2 years ago
Read 2 more answers
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