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3 years ago

Can some one please help me and explain how you got the answer?

Mathematics

2 answers:

podryga [215]3 years ago

7 0

Answer:

Yes number 5 is, they are proportional because y is coresponding to x by multiplying by 1/5

No number 6 isn't, you can't go from 3 to 1 and 7 to 3

yulyashka [42]3 years ago

4 0

Answer:

5. Proportional & 6. Not Proportional

Step-by-step explanation:

Proportional relationships = x and y increase at the same rate

5. all increases by x2

6. increases at different rates

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The area of the base of a cylindrical container is defined by b(x) = x*2 - x + 12. Find

vagabundo [1.1K]

Answer: $V=x^3-2x^2+13x-12$

Step-by-step explanation:

Given

The area of the base is given by $b(x)=x^2-x+12$

The height of the container is $h(x)=x-1$

The volume of the cylindrical container is

$V=Area\times height$

Insert the values

$\Rightarrow V=\left( x^2-x+12\right)\cdot \left(x-1\right)\\\Rightarrow V=x^3-x^2+12x-x^2+x-12\\\Rightarrow V=x^3-2x^2+13x-12$

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2 years ago

Evaluate the expression when x = 3 and y = 5 6y/x

kondaur [170]

If x=3 and y=5 then you just substitute.
6(5)/3
30/3
=10
10 is your answer.

5 0

3 years ago

Read 2 more answers

Simplify the expression 5(n+3)+4n

Xelga [282]

Answer:

9n + 15

Step-by-step explanation:5XN + 5X3 + 4N = 5n + 15 + 4n = 9n + 15

6 0

3 years ago

Marina paid $2,000 for a tablet PC after receiving a 25 percent discount. What was the price of the tablet before the discount?

tensa zangetsu [6.8K]

The price of the tablet before the discount is $ 2667

<h3><u>Solution:</u></h3>

Given that Marina paid $2,000 for a tablet PC after receiving a 25 percent discount

To find: The price of the tablet before the discount

Let "a" be the price of the tablet before the discount or original price

After receiving a 25 percent discount means 25 percent discount in original price

Discount = 25 % of original price

Discount = 25 % of "a"

$\begin{array}{l}{\text {discount}=\frac{25}{100} \times a} \\\\ {\text {discount}=0.25 a}\end{array}$

Now we can say that,

<em>price of tablet after discount = price of the tablet before the discount - discount</em>

2000 = a - 0.25a

0.75a = 2000

a = 2666.67 ≈ 2667

Thus the price of the tablet before the discount is $ 2667

4 0

3 years ago

Please guys help me with this question.

Neko [114]

Answer:

120 m east & straight i think

7 0

3 years ago