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vfiekz [6]
2 years ago
15

What is the value of the expression when n = 3? -2n(5+n - 8 -3n)

Mathematics
2 answers:
DIA [1.3K]2 years ago
6 0

Answer:

54

Step-by-step explanation:

kogti [31]2 years ago
3 0

Answer:54

Step-by-step explanation:

-2(3)(5+3 - 8 -3(3)=54

Hope I helped:D

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A satellite makes 4 revolutions of the earth in one day. How many revolutions would it make in 6 1/2 days?
koban [17]
26. 
1 day/24 hours, makes 4 revolutions. 
4 x 6 = 24, 
1/2 of 4 = 2.
24+2 = 26. 
26 revolutions, if my answer is wrong someone please correct me.
8 0
2 years ago
Alvin and Bala has 26 stickers.Alvin had 8 more stickers thab Bala.How many stickers did Bala have?​
Brilliant_brown [7]
Bala had 9 stickers

You could set this up as a equation. Because there was a total of 26 you would for sure put =26. Next you are told Alvin has 8 MORE than Bali, therefore you would be adding the unknown value of Bala by 8. This could be represented as x+8=26. Now that you have x added to 8 you need to add another x to the equation to fully represent the problem since Alvin has 8 more stickers than Bala does. The new equation would become 2x+8=26.

You must now isolate x by first subtraction 8 from both sides which will leave you with 2x=18. Then you divide on both sides by 2 and will leave you with x=9
3 0
2 years ago
Which real numbers are zeros of the function? f(x)=2x3−x2−8x+4 Select each correct answer. −2 −1 −12 0 12 1 2
Ede4ka [16]

Answer:

Step-by-step explanation:

Given is a function in x as

f(x)=2x^3-x^2-8x+4

We have to find the zeroes of the function

Since this is a cubic function this function has three zeroes.

Let us try to factorise this function by grouping two terms together.

x^2(2x-1)-4(2x-1)\\= (2x-1)(x^2-4)

=(2x-1)(x-2)(x+2)

Equate each factor to 0 to find zeroes as

-2,2,\frac{1}{2}

4 0
2 years ago
A local city collects 8% sales tax. If the total purchase was $216.00, then how much was collected for sales tax?
Phantasy [73]
$216 x 0.08 = $17.28.
Therefore $17.28 was collected for sales tax.
4 0
1 year ago
On babylonian tablet ybc 4652, a problem is given that translates to this equation: x (x/7) (1/11) (x (x/7)) = 60 what is the so
Yanka [14]
Thanks for posting your question here. The answer to the above problem is x = <span>48.125. Below is the solution:
</span>
 x+x/7+1/11(x+x/7)=60 
x = x/1 = x • 7/7
x <span>• 7 + x/ 7 = 8x/7 - 60 = 0
</span>x + x/7 + 1/11 <span>• 8x/7 - 60 = 0
</span>8x <span>• 11 + 8x/ 77 = 96x/ 77
</span>96x - 4620 = 12 <span>• (8x-385)
</span>8x - 385 = 0
x = 48.125


5 0
2 years ago
Read 2 more answers
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