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4 years ago

In a survey, 480 people, or 75%, said they attended a movie at least once a month. How many people were surveyed?

2 answers:

8 0

You put 75 over 100 because that's 75% and you put 480 over x and then cross multiply and solve for x. so it would D. 640 people

harkovskaia [24]4 years ago

3 0

480 people is 75 %
x people is 100 %
--------------------------
480 : x = 75 : 100
75 x = 48,000
x = 48,000 : 75
x = 640
Answer:
D ) 640 people

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Express your answer as a polynomial in standard form.

lana [24]

9514 1404 393

Answer:

f(g(x)) = -3x^2 -2x -3

Step-by-step explanation:

Given:

f(x) = -x-7

g(x) = 3x^2 +2x -4

Find:

f(g(x))

Solution:

Substitute per the function definitions.

f(g(x)) = f(3x^2 +2x -4) = -(3x^2 +2x -4) -7

f(g(x)) = -3x^2 -2x -3

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3 years ago

I could rlly use sum help - Brainliest!!!!!

atroni [7]

Answer: The answers are 4x^2(x^2+5x+3), (x–6) (x+2), (x–9), 3(x–7)(x–4), (9x–10) (9x+10), 3(y^2+2)(x^2+4), (5x+2), 2(x–4)(6x+1), 2(x + 4)(y - 4), and the factored form is (3x–4)(x–3).

Step-by-step explanation: To solve all the factoring equations, factor using the AC method or factoring the polynomials, the 3 steps are Grouping: using the sum-product pattern, common factor from the two pairs, and

rewrite the expression in factored form.

4 0

3 years ago

P(A) = .6, P(B) = .3, P(

In-s [12.5K]

Answer:

0.4

Step-by-step explanation:

P(A)=0.6

P(B)=0.3

P(B∩A)=0.5

P(A∪B)=P(A)+P(B)-P(A∩B)

P(A or B)=P(A∪B)=0.6+0.3-0.5=0.9-0.5=0.4

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2 years ago

Which shapes can be made from a planar cross section of a triangular pyramid? More than one can be correct: trapezoid, pentagon,

Jlenok [28]

Answer:

Triangle in isosceles, scalene or equilateral forms and

quadrilateral in trapezoid, rectangle or square forms

Step-by-step explanation:

Refer to pictures attached

Shapes can be formed are:

Trapezoid,

when perpendicular to base

Rectangle or square,

when angle cross section to base

Isosceles triangle,

when base is isosceles triangle and parallel cross section to base,

or angle cross section

Scalene triangle,

when base is scalene triangle and parallel cross section to base,

or angle cross section

Equilateral triangle,

when base is equilateral triangle and parallel cross section to base,

or angle cross section

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3 years ago

For the given solid figure, find the value of the variable

Ivahew [28]

Answer:

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Step-by-step explanation:

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3 years ago