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PolarNik [594]
3 years ago
12

Simplify by using the distributive property. -4(x+2)

Mathematics
2 answers:
Vilka [71]3 years ago
6 0

Answer:

-4x - 8

Step-by-step explanation:

-4 ( x + 2 )

( -4 * x ) + ( -4 * 2 )

-4x + ( -8 )

-4x - 8

bagirrra123 [75]3 years ago
4 0

Answer:

-4x-8

Step-by-step explanation:

-4(x+2)

-4(x)=-4x

-4(2)=-8

-4x-8

Hope this helps!

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Renting a movie costs $ 5.99. What is the dependent variable in this situation?
dimaraw [331]

Answer:

B. price

Step-by-step explanation:

The equation is linear and looks like this:

C(x) = 5.99x

where C(x) is the cost of x number of movies.  The cost is the dependent variable, since it is dependent upon how many movies you rent at 5.99 each.

5 0
3 years ago
Read 2 more answers
What is the y-intercept of the function f(x)=4 - 5x? (Hint: use the commutative property)
Tom [10]

Answer:

Therefore the y-intercept of the function is 4.

Step-by-step explanation:

Intercepts:

The line which intersect on x-axis and y-axis are called intercepts.

y-intercept: The line or function which intersect at y-axis. So when the line intersect at y-axis, X coordinate is zero.

So in the given Function Put x = 0 we will get the y-intercept

f(x)= 4-5x

Put x =0

f(0)= 4-5\times 0

f(0)= 4-0=4

Therefore the y-intercept of the function is 4.

7 0
3 years ago
4km in9hr, then 24 km in
Morgarella [4.7K]
If you ran 4km in 9 hours.
Then you'll run 24 km's in.

4km per 9 hours
8km per 18 hours.
12km per 26 hours.
16km per 34 hours.
20km per 40.
24km per 46.
5 0
3 years ago
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In a recently administered iq test, the scores were distributed normally, with mean 100 and standard deviation 15. what proporti
iragen [17]

To solve for proportion we make use of the z statistic. The procedure is to solve for the value of the z score and then locate for the proportion using the standard distribution tables. The formula for z score is:

z = (X – μ) / σ

where X is the sample value, μ is the mean value and σ is the standard deviation

 

when X = 70

z1 = (70 – 100) / 15 = -2

Using the standard distribution tables, proportion is P1 = 0.0228

 

when X = 130

z2 = (130 – 100) /15 = 2

Using the standard distribution tables, proportion is P2 = 0.9772

 

Therefore the proportion between X of 70 and 130 is:

P (70<X<130) = P2 – P1

P (70<X<130) = 0.9772 - 0.0228

P (70<X<130) = 0.9544

 

Therefore 0.9544 or 95.44% of the test takers scored between 70 and 130.

6 0
3 years ago
2y to the power of 2x - 3xz = ?
MrRissso [65]

Answer:

x•(2xy-3z)

Step-by-step explanation:

2x²y -3xz== x(2xy-3z)

6 0
4 years ago
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