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aleksley [76]
3 years ago
14

Please answer this, i will give brainliest. lol

Mathematics
1 answer:
Mila [183]3 years ago
4 0

Answer:

Step-by-step explanation:

10-43:

A. To get the area of a circle, multiply the diameter (20cm), by pi. (3.14)

B. Area=314.16cm²

10-45:

A. 30%.

B. The waterpark and the amusement park.

C. I would recommend doing another survey between the waterpark and the amusement park.

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5Y+8 -ly-8-8y-1"<br>Your answer​
gulaghasi [49]

Answer:

-4y-1

Step-by-step explanation:

(5y+-y+-8y)+(8+-8+-1)

-4y-1

7 0
3 years ago
Read 2 more answers
The inverse variation equation shows the relationship between wavelength in meters, x, and frequency, y.
Vaselesa [24]

<u>Answer:</u> The wavelength for X-rays with the given frequency is 1\times 10^{-10}m

<u>Step-by-step explanation:</u>

To calculate the wavelength of light, we use the equation:

\lambda=\frac{c}{\nu}

where,

\lambda = wavelength of the light  

c = speed of light = 3\times 10^8m/s

\nu = frequency of light = 3\times 10^{18}s^{-1}

Putting the values in above equation, we get:

\lambda=\frac{3\times 10^8m/s}{3\times 10^{19}s^{-1}}=1\times 10^{-10}m

Hence, the wavelength for X-rays with the given frequency is 1\times 10^{-10}m

7 0
3 years ago
Read 2 more answers
I suck at this stuff can someone help me out? thank you!
avanturin [10]
A) h=9.9
if that's not correct, i've done these before, i don't know why it wouldn't work?
3 0
3 years ago
Plzz help me im giving 12 points
Serggg [28]
This Is very simple.

30m + 50 = 20m + 100

This is the new equation needed to solve for m.
first we must isolate "m".

30m + 50 = 20m + 100
        - 50             - 50

30m = 20m + 50
-20m   -20m

10m = 50

divide both sides by 10 to isolate "m".

m = 5

hope this helps!





3 0
3 years ago
The cost of Samantha's 15th birthday party depends on the number guest. The hall charges $250 for the use of the hall plus $12 p
Scorpion4ik [409]

Answer:

Equation: y=x(12)+250

Total cost: $550

3 0
3 years ago
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