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Dvinal [7]
4 years ago
15

I need help with these two problems !!

Mathematics
1 answer:
wolverine [178]4 years ago
4 0

Not so sure about the second one, but the first one is pretty simple:

The area of a circle = pi x radius^2

Since you need to find the area of the entire dvd, I'm assuming they mean if the hole in the center wasn't there, so add that to the diameter.

12+1.5 = 13.5

Half of the diameter is the radius, so half of 13.5 = 6.75

Now, multiply pi (3.14) by the radius, but have the radius squared. You'd write the equation like this:

3.14 x 6.75^2 (or on paper, the ^2 would be a small two diagonal from the 5)

Actual answer: 143.06625

You can round that to 143.

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-3 on a number line​
babymother [125]

-3 on a number line would look like 3 right from 0.

Let's just say we have a number line. A number line is a line that represents numbers. I'll say the positive side is on the top/left and the negative side (-3) on the bottom/right. -3 is a negative number. There is the sign (-) before 3. That indicates it's a negative number. Since it's a negative and 3, we move 3 down or right.

6 0
3 years ago
I need the answer to number three please help !
gayaneshka [121]
The answer is C -5/16 is -0.3 which means -5/16 cant be greater than or less than -0.3 so A and D are wrong and -2/3 is less than -5/16 which leaves us with C!
8 0
3 years ago
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Help me. Two numbers have a sum of 30. Half of their difference is 7. Find the numbers.
igor_vitrenko [27]

Answer:

the correct answers are 22 and 8

7 0
3 years ago
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The figure below shows a parallelogram PQRS:
lawyer [7]

The figure below shows a parallelogram PQRS:


A parallelogram PQRS is shown with the diagonal SQ.


The flowchart shown below shows the sequence of steps to prove the theorem: Opposite angles of a parallelogram are equal:


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Answer - Triangle PQS is congruent to triangle RSQ

4 0
3 years ago
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Another house is sold for £283,392
Dmitry_Shevchenko [17]

Answer:

the price paid is  £288,000

Step-by-step explanation:

The computation of the price paid is shown below:

Sale of the another house is £283,392

Since the another house would be 1.6% less than the price paid

So, the price paid would be

=  £283,392 × 100 ÷ (100 - 1.6%)

=  £283,392 × 100 ÷ 98.4

=  £288,000

Hence, the price paid is  £288,000

8 0
3 years ago
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