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MakcuM [25]
3 years ago
7

Ten times the number, x, is one-half the sum of the number and three

Mathematics
2 answers:
Mazyrski [523]3 years ago
7 0
10x=1/2x+3

I think it's right, but not 100% sure
Bess [88]3 years ago
5 0

Tyrrellcordel you were semi-right you just missed the parentheses, the answer was 10x = 1/2 (x + 3).

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What is the binomial expansion of (2x – 3)^5?
Tanya [424]

Answer:

C

Step-by-step explanation:

(2x + 3)^5 = C(5,0)2x^5*3^0 +

C(5,1)2x^4*3^1 + C(5,2)2x^3*3^2 + C(5,3)2x^2*3^3 + C(5,4)2x^1*3^4 + C(5,5)2x^0*3^5

Recall that

C(n,r) = n! / (n-r)! r!

C(5,0) = 1

C(5,1) = 5

C(5,2) = 10

C(5,3) = 10

C(5,4) = 5

C(5,5) = 1

= 1(2x^5)1 + 5(2x^4)3 + 10(2x^3)3^2 + 10(2x^2)3^3 + 5(2x^1)3^4 + 1(2x^0)3^5

= 2x^5 + 15(2x^4) + 90(2x^3) + 270(2x^2) + 405(2x) +243

= 32x^5 + 15(16x^4) + 90(8x^3) + 270(4x^2) + 810x + 243

= 32x^5 + 240x^4 + 720x^3 + 1080x^2 + 810x + 243

7 0
3 years ago
Read 2 more answers
Thank you to whoever helps me. I'm confused a little bit.
xeze [42]
The answer to this is 392
5 0
3 years ago
Round 82.265 to the nearest whole number.
Zinaida [17]
83.................................

7 0
3 years ago
Y varies directly with x, and y = 5 when x = 4. What is the value of x when y = 8?
Tomtit [17]
As y varies directly with x, there is a proportionality constant. As x increases by that certain constant, y also increases. We equate:
y = kx
where k = proportionality constant.
Given the condition, y = 5 when x = 4, then we solve for k:
5 = k(4)
k = 5/4 or 1.25
When y = 8, then
8 = (5/4)(x)
x = 8/(5/4) = (8)(4/5) = 32/5 or 6.4 (ANSWER)
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3 years ago
A radio station plays a winning song once per hour at a randomly selected time (in minutes). During an announcer’s four-hour sho
telo118 [61]

Answer:nrkrdjdjddjdjdjjdjdjdjdjdjd

Step-by-step explanation:

Hdhdhdhdhdhd

8 0
3 years ago
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