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2 years ago

Make r the subject of the formula V=Tr^2h

Mathematics

1 answer:

mariarad [96]2 years ago

4 0

Answer:

r = √V / Th

Step-by-step explanation:

V=Tr^2h

V / Th = r^2 ..........bring T and h on the other side as V

r = √V / Th ____ $\sqrt{V/Th}$

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If Johnny has 800 socks and John has 1000 more socks then Johnny how many socks do John has

melomori [17]

1,800 socks

Johnny has 800 and John has 1000 more, so you would add the two numbers to get the answer of 1,800 socks.

8 0

3 years ago

Ifx=−8, evaluate the following expression:(x−2)(x+4)x(x+9)

tekilochka [14]

Answer:

= 40

Step-by-step explanation:

so if you mean x = -8

$(x - 2)(x + 4) \times (x + 9) \\$

$( - 8 - 2)( - 8 + 4) \times ( - 8 + 9)$

$( - 10)( - 4) \times 1$

$40 \times 1$

$40$

4 0

3 years ago

The same style blanket in size B has width 2x + 10 and length 4x - 10. Write a polynomial

Umnica [9.8K]

Answer:A=8x^2 + 20x - 100

Step-by-step explanation:

The area of rectangle is:

A= length × width

A= (2x+10)(4x-10)

So now expand the bracket8

A=8x^2 - 20x + 40x - 100

A=8x^2 + 20x - 100

5 0

3 years ago

Which phrase does NOT describe a rational number?

kramer

Answer:

C. Non-repeating and non-terminating.

Step-by-step explanation:

We know that, rational numbers are of the form $\frac{p}{q}$ , where q≠0 and p,q are integers.

If we take q=1, then the rational number is $\frac{p}{1}$ = p, where p is an integer.

So, option B represents a rational number.

Let us consider, $\frac{25}{49}$ = 0.31645569620253.

So, we can see that a rational number can be written in the form of repeating and terminating decimals.

So, option A and D also represents a rational number.

Therefore, option C i.e. non-repeating and non-terminating does not represents a rational number as it represents an irrational number.

Hence, option C is correct.

3 0

4 years ago

How can i solve this

DedPeter [7]

Answer:

I think the answer is

because

2x+4=18

2x=18-4

2x=14

2x/2=14/2

x=7

4 0

3 years ago