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monitta
2 years ago
7

Use substitution to solve the system of equations. y=-4x+11 3x+y=9

Mathematics
1 answer:
Sloan [31]2 years ago
7 0

Answer:

(2,3)

Step-by-step explanation:

(Brainliest please)

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An arcade holds a game night. Of the 120 customers who visit during the game night, 30 customers are offered free games. What pe
lilavasa [31]

Answer:

75% of customers are not offered free games.

7 0
3 years ago
13+26 [(2.8 x 5) divided by 7]<br> HELPPP
Katen [24]
65
1. you work in the parentheses and multiply 2.8 by 5 which is 14
2. you divide 14 by 7 which is 2
3. you follow PEMDAS and multiply 26 by what is in the parentheses (2) which is 52
4. you add 13 with 52 which is 65
hope this helped!!
4 0
2 years ago
The radius is 3 so what is the circumference
jonny [76]
The formula for circumference of a circle
=
2
π
r
The radius
=
3
c
m
(assuming units to be in cm)
2
π
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=
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×
22
7
×
3
=
132
7
=
18.86
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3 0
2 years ago
Read 2 more answers
5. When choosing a movie to watch on Netflix, 45% of them are comedies, 30%
baherus [9]

The probability of choosing a horror movie or a comedy is 75%.

<h3>What are probabilities?</h3>

Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.

<h3>What is the probability of choosing a horror movie or a comedy?</h3>

45% + 30% = 75%

To learn more about probability, please check: brainly.com/question/26321175

4 0
2 years ago
Find the equation of the parabola that has zeros of x = –1 and x = 3 and a y-intercept of (0,–9). Question 1 options: A) y = 3x2
andrey2020 [161]

Answer:

A

Step-by-step explanation:

Given the zeros are x = - 1 and x = 3 then the factors are

(x + 1) and (x - 3) and the parabola is the product of the factors, that is

y = a(x + 1)(x - 3) ← where a is a multiplier

To find a substitute (0, - 9) into the equation

- 9 = a(0 + 1)(0 - 3) = a(1)(- 3) = - 3a ( divide both sides by - 3 )

3 = a, thus

y = 3(x + 1)(x - 3) ← expand the factors using FOIL

  = 3(x² - 2x - 3) ← distribute by 3

  = 3x² - 6x - 9 → A

7 0
3 years ago
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