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nordsb [41]
2 years ago
14

It costs 30 dollars per month for a cell phone plus 10 dollars for every GB of data.Which expression can be used to represent th

e cost of a cell phone bill when x is the number of GB of data used?
a.30 + 10

b.30x + 10

c.10x + 30

d.10x + 30x
Mathematics
1 answer:
Oksanka [162]2 years ago
7 0

Answer: I Think Its C.( 10x ) + 30

Step-by-step explanation: Hoped This Helped! Thx For The Points!

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Answer:

im just answering because my name is marcus.

Step-by-step explanation:

-56.3015% change

56.3015% decrease

8 0
3 years ago
You observe the heights of two plants for an experiment. Plant A has a height of 8 centimeters and grows 1 centimeter each week.
saveliy_v [14]

Answer:

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8 0
3 years ago
2x^3-x^2+x-2 factorize​
bekas [8.4K]

Answer:

(x-1)(2x^2+x+2)

Step-by-step explanation:

Factorize:

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

<u>Factor Theorem</u>

If f(a) = 0 for a polynomial then (x - a) is a factor of the polynomial f(x).

Substitute x = 1 into the function:

\implies f(1)=2(1)^3-1^2+1-2=0

Therefore, (x - 1) is a factor.

As the polynomial is cubic:

\implies  f(x)=(x-1)(ax^2+bx+c)

Expanding the brackets:

\implies  f(x)=ax^3+bx^2+cx-ax^2-bx-c

\implies  f(x)=ax^3+(b-a)x^2+(c-b)x-c

Comparing coefficients with the original polynomial:

\implies ax^3=2x^3 \implies a=2

\implies (b-a)x^2=-x^2 \implies b-2=-1 \implies b=1

\implies -c=-2 \implies c=2

Therefore:

\implies  f(x)=(x-1)(2x^2+x+2)

Cannot be factored any further.

4 0
2 years ago
Read 2 more answers
1 of what number is 7
Kamila [148]
I hope this helps you



1=?.7


?=1/7
3 0
2 years ago
Use the zero product property to find the solution to the equation x^2 +12=7x
pochemuha
X2 + 12 = 7x x2 – 7x + 12 = 0factor the equation (x – 3 ) ( x – 4 ) = 0 Then equating both factor to 0 X – 3 = 0 X = 3 And X – 4 = 0 X = 4 So the answer is X = 3 X =4 
6 0
3 years ago
Read 2 more answers
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