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Amanda [17]
3 years ago
11

Please help I’ll mark you as brainliest if correct

Mathematics
1 answer:
Nina [5.8K]3 years ago
5 0

Answer:

2/7

Step-by-step explanation:

Find the seperate chances, those being 1/5 and 1/2 and add.

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5+(9+6×3-3)-3<br><br><br>I<br>using order of operations
mario62 [17]
Ur an idiot use a calculator
7 0
3 years ago
Read 2 more answers
Check the pic that i attatched
kykrilka [37]

Answer:

≈ £ 4584.38

Step-by-step explanation:

Firstly, we need to find the number of litres that Mr. Leonard needs to fill up his tank:

We know that there is already 450 litres in the 1200 litre tank, so he must need 1200 - 450 = 750 litres.

I'm not quite sure what the variable p means, but I'm going to assume that p represents the number of litres and that 81.5 is the price per litre in pounds.

So:

Total price = 81.5p

Total price = 81.5(750)

Total price = £61125

We have to remember though that the question is asking for the <em>discount</em> and not the <em>discounted price</em>, so:

61125 × 7.5%

61125 × 0.075 = 4584.375

≈ £ 4584.38

7 0
3 years ago
Rd
taurus [48]

Answer:

can you please write it differently cuz its kinda confusing

4 0
3 years ago
A cylindrical can, open at the top, is to hold 840 cm3 of liquid. Find the height and radius that minimize the amount of materia
ycow [4]

Answer:

the radius of the base is equal to x=2\sqrt[3]{\frac{105}{\pi } }

And the height is equal to:

y=\frac{840}{\pi(2\sqrt[3]{\frac{105}{\pi}})^{2} }

Step-by-step explanation:

We write the volume function

f(x,y)=840=\pi x^{2} y where x is the radius of the base and y is the height of the cylinder

y=\frac{840}{\pi x^{2} }

The surface of a cylinder is given by

S(x)=\pi x^{2} +2\pi xy=\pi x^{2} +\frac{1680}{x} on the interval from 0 to infinity

We now determine the critical values by differentiating and making the equation equal to 0

f'(x)=2\pi*x- \frac{1680}{x^{2}} =\frac{2\pi x^{3}-1680}{x^{2} } =0

This equation have 2 complex solutions and one real solution

x=2\sqrt[3]{\frac{105}{\pi } }

For x=0 and infinity the equation goes to infinity also so the radius of the base is equal to x=2\sqrt[3]{\frac{105}{\pi } }

And the height is equal to:

y=\frac{840}{\pi (2\sqrt[3]{\frac{105}{\pi } })^{2} }

y=\frac{840}{\pi(2\sqrt[3]{\frac{105}{\pi}})^{2} }

7 0
3 years ago
PLEASE HELP! AM BEGGING! IF I GET A 80 OR LOWER AM GOING TO FAIL! PLEASE DOUBLE CHECK YOU WORK!!!! :(( I used up all my points
Hoochie [10]

Answer:

question 1 is 22

question 2 is 122

ask your teacher why u got question 1 wrong

Step-by-step explanation:

90-68 is 22

180-58= 122

5 0
3 years ago
Read 2 more answers
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