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Lunna [17]
2 years ago
8

Evaluate the expression 3x^2+4x^3 when x=4.

Mathematics
1 answer:
larisa [96]2 years ago
6 0

Step-by-step explanation:

304

plug 4 in for x

3(4)^2 + 4(4)^3 = 304

48 + 256 = 304

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Answer correclty PLZZZ
ioda

Answer: option C is the correct answer

Step-by-step explanation:

The system of linear equations is

10x + 7y = 12 - - - - - - - 1

8x + 7y = 18 - - - - - - - 2

Since the coefficient of y is the same in equation 1 and equation 2, we will eliminate y by subtracting equation 2 from equation 1, it becomes

10x - 8x + 7y - 7y = 12 - 18

2x = -6

x = - 6/2 = - 3

Substituting x = - 3 into equation 1, it becomes

10×-3 + 7y = 12

-30 + 7y = 12

Let the constants be on the right hand side and the term containing y be on the left hand side. It becomes

7y = 12 + 30

7y = 42

y = 42/7

y = 6

C) (−3, 6)

6 0
2 years ago
Read 2 more answers
A total of 279 tickets were sold for the school play. they were either adult or student tickets. the number of student tickets s
Mice21 [21]
A + s = 279
s = 2a

a + 2a = 279
3a = 279
a = 279/3
a = 93 <=== adult

s = 2a
s = 2(93)
s = 186 ....students
6 0
3 years ago
Read 2 more answers
ILL MARK BRAINLIEST IF FAST
nignag [31]

Answer:

D

Step-by-step explanation:

A unit rate is basically which one increases more as time goes on. Now. to make it easier let me explain visual.

You have 50 apples at the start and every hour you get 200 more apples, sweet!

Now let's look at the chart.

The first one is 200x+100, this is wrong since this has a better start but you don't get as much apples.

Same goes for the B and C. The only one that would make sense is D since you're also adding 10 more apples for each one you increase.

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2 years ago
Help ASAP! 50 Points and brainlest!
DaniilM [7]
2 over 5 tho yes it’s also 3x + 1 over 4y2
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2 years ago
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the angle of elevation of a jet plane from a point P on the ground is 60 degree after a flight of 15 seconds the angle of elevat
Nana76 [90]

Answer:

200m/s

Step-by-step explanation:

Please see the attached pictures for full solution.

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3 years ago
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