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Trava [24]
3 years ago
13

Simplify the polynomial: 2(x+8)-5(x-3)

Mathematics
1 answer:
jarptica [38.1K]3 years ago
3 0

Answer:

-3x + 31

Step-by-step explanation:

First distribute

2x + 16 -5x +15

Collect like terms

-3x + 31

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Calculate the diameter of circle j if the circumference is 100.48
shtirl [24]
31.98, I am not 100% sure. 
6 0
3 years ago
Rewrite as a simplified fraction.<br>2.3 = ?​
zubka84 [21]

Answer:

23/100 or 23/10

Step-by-step explanation:

2.3/1

(2.3 x 10) / (1 x 10) =23/10

find lcm (lowest common multiple) for 23 and 10

1 is the lcm for 23 and 10

23/10 is a simplest fraction for the decimal point number 2.3

7 0
3 years ago
I need help please?!):
motikmotik

Answer:

Option C:   $ \sqrt{\textbf{121}} $

Step-by-step explanation:

Given the side length of a square is 11 units.

Note that $ \sqrt{121} = \pm 11 $

Since, length cannot be negative, we can eliminate - 11.

Hence, the length of the side of the square is 11 units = $ \sqrt{11^2} = \sqrt{121} $.

Hence, the answer.

7 0
3 years ago
Don’t know how to solve, help ?
yawa3891 [41]
I believe the answer is 88 because the 120 will create a straight angle which is 180. Then you do 180-120=60. This is the measure I the left angle. Now your answer will be 88
8 0
2 years ago
Read 2 more answers
Evaluate the expression (-4+4i)(1+4i)(1+4i) and write the result in the form a+bi
allsm [11]

Answer:

Step-by-step explanation:

Since 2 of the 3 binomials are identical I would start the distribution there.

(1 + 4i)(1 + 4i) = 1+8i+16i^2

I'm sure you have learned in class by now that i-squared is = to -1, so we can make that substitution:

1 + 8i + 16(-1) which simpifies to

1 + 8i - 16 which simplifies further to

-15 + 8i.  Now we need to FOIL in the last binomial:

(-15 + 8i)(-4 + 4i) = 60-60i-32i+32i^2

Combine like terms to get

60-92i+32i^2

Again make the substitution of i-squared = -1:

60 - 92i + 32(-1) which simplifies to

60 - 92i - 32 which simpifies, finally, to a solution of:

28 - 92i

8 0
3 years ago
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