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ira [324]
2 years ago
11

Paul says that (3.14 x 10^5) + (2.53 x 10^4) = 5.67 x 10^5. Is Paul correct? i need a explaining

Mathematics
1 answer:
sdas [7]2 years ago
6 0

Answer: It’s not correct, the equality is false. The reasoning behind this is the equality is the left-hand and right-hand side are different when you do the math.no

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The area of a playground is 216 yd^2. The width of the playground is 6 yd longer than its length. Find the length and width of t
zvonat [6]

Let the length of the playground be x, then the width is 6 + x.

Area = length * width = x * (6 + x) = 6x + x^2 = 216

Solving the quadratic equation x^2 + 6x - 216 = 0, we have x = 12 or -18

i.e length = 12 and width = 6 + 18 = 18

5 0
3 years ago
The table below shows the weekly change in the price of one gram of gold for four weeks.
Sonja [21]

Answer:

THEY DIDN'T IT WAS BECAUSE THEY MADE UP A FAKE RUMER AND HAD TO MAKE IT LOOK REAL

Step-by-step explanation:

8 0
3 years ago
A circle has a circumference of 28π centimeters. In terms of π, what is the area of the circle to the nearest square centimeter?
Vadim26 [7]

Hi there!

The formula to find the are of a circle is :

a = \pir²

The formula to find the circumference of a circle is :

c = 2\pir


In order to use the area formula, you need to figure out what the radius (r) is.

If we solve for "r" in the circumference equation, we have :

r = c ÷ (2\pi)


Now we use this to replace "r" in the area formula :

a = \pi ( c ÷ (2\pi))²


When we simplify this we get :

a = c² ÷ 4\pi


Now you can put your value of "c" into this equation and find "a".

*Remember, \pi is about 3.1416.


Solving for "a" :

a = c² ÷ 4\pi

a = 28² ÷ 4\pi


28² = 28 × 28 = 784


a = 784 ÷ 4\pi


4\pi = 4 × \pi = 12.56637061435917


a = 784 ÷ 12.56637061435917

a = 62.38873769202297cm²


You need to round to the nearest square centimeter, which means that you need to round to the nearest whole number :

a = 62cm²


There you go! I really hope this helped, if there's anything just let me know! :)

8 0
3 years ago
7/4 as a whole number
Ne4ueva [31]
1 1/4?? because 7/4 cant be a whole number its a mixed number when simplified
5 0
3 years ago
Lisa bought four candles. The candles cost $7.00, $8.00, $19.00, and $13.00. If she only had $50 to spend and wants to buy a fif
gizmo_the_mogwai [7]

Answer:

B

Step-by-step explanation:

I added all of then and then subtracted 47 from the 50.

5 0
3 years ago
Read 2 more answers
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