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Jlenok [28]
3 years ago
15

Using synthetic division, find (2x4 - 3x3 - 20x - 21) = (x - 3).

Mathematics
1 answer:
andreev551 [17]3 years ago
4 0

Answer:

x= -9/11

or alternative form:

x= 0.81

Step-by-step explanation:

2x4-3x3-20x-21=x-3

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Select the correct answer.
givi [52]

Answer:

B

Step-by-step explanation:

The cube of twice a number =

{2m}^{3}

Decreased by 11 =

- 11

Hence, the cube of twice a number decreased by 11 =

{2m}^{3}  - 11

7 0
3 years ago
Simplify the square root of 320
Pavlova-9 [17]
17.89, is this an option?
5 0
3 years ago
What is the solution set of the equation 6/m +2= m+3/m−1 ?
laiz [17]

Answer:

m = (-3, 2) x = (-1)

Step-by-step explanation:

Just took this K12 test.

5 0
3 years ago
For what value of x must ABCD be a parallelogram? asap please!!
pochemuha
Parallelogram so
CD = AB
18x - 5 = 15x + 4
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answer
x = 3
3 0
3 years ago
Read 2 more answers
Determine the value of x to the nearest thousandth in the equation 8(2)^x+3=48
solong [7]

You probably mean either

8\cdot2^x + 3 = 48

or

8\cdot2^{x+3} = 48

Write 8 = 2³, so that in the first interpretation,

8\cdot2^x = 2^3 \cdot 2^x = 2^{x + 3}

and in the second,

8\cdot2^{x+3} = 2^3 \cdot 2^{x+3} = 2^{x + 6}

Then in the first interpretation, we have

2^{x + 3} + 3 = 48 \implies 2^{x + 3} = 45 \implies x + 3 = \log_2(45) \implies x = \log_2(45) - 3 \approx \boxed{2.492}

Otherwise, the second interpretation gives

2^{x + 6} = 48 \implies x + 6 = \log_2(48) \implies x = \log_2(48) - 6 \approx -0.415

8 0
3 years ago
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