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Black_prince [1.1K]
3 years ago
7

Can someone help me on these ???

Mathematics
2 answers:
krok68 [10]3 years ago
8 0
Multiply 81.5p and divide 7.5% you get the answer
Serjik [45]3 years ago
8 0
It can take 1200 liters....and it already has 450 liters.....so it needs (1200 - 450) = 750 liters to fill it up to full capacity.

and the price is 81.5 pounds per liter......for 750 liters...
81.5 * 750 = $ 61125 pounds

and he gets a 7.5% discount...
so his discount would be : 0.075 * 61125 = 4584.375 rounds to 
$ 4584.38 pounds <== ur answer
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A circle with radius 9 has a sector with a central angle of 120°.
Vitek1552 [10]

120º is 1/3 of a complete revolution of 360º. So the area of this sector should be 1/3 the area of the complete circle.

A circle with radius 9 has area 9^2 π = 81π.

So the sector has area 81π/3.

Put another way: The area <em>A</em> of a circular sector and its central angle <em>θ</em> (in degrees) occur in the same ratio as the area of the entire circle with radius <em>r</em> according to

<em>A</em> / <em>θ </em>º = (π <em>r </em>^2) / 360º

==>  <em>A</em> = π/360 <em>θ r</em> ^2

In this case, <em>r</em> = 9 and <em>θ</em> = 120º, so

<em>A</em> = π/360 * 120 * 81 = 81π/3

8 0
3 years ago
Joe's boat rental rents paddle boats for $8.00 and the paddles rent for $5.00 for the day. If David has $45, what is the least a
Lisa [10]

Answer:

Minimum hour = 177 hour

Step-by-step explanation:

Given:

Paddle boats rent = $8

Paddles rent = $5 Per 24 hours

Total amount = $45

Find:

Number of hour David rent paddle boat

Computation:

8 + (5/24)n = 45

(5/24)n = 37

n = 177.6 hour

Minimum hour = 177 hour

6 0
3 years ago
What is the area of the triangle? A. 26.91 cm² B. 28.98 cm² C. 53.82 cm² D. 57.96 cm²
Masteriza [31]
A= hᵇb
       2
hope that helped at all.

8 0
3 years ago
Please please help 100 points
stiks02 [169]

We're given

\displaystyle \int_4^{-10} g(x) \, dx = -3

which immediately tells us that

\displaystyle \int_{-10}^4 g(x) \, dx = 3

In other words, swapping the limits of the integral negates its value.

Also,

\displaystyle \int_4^6 g(x) \, dx = 5

The integral we want to compute is

\displaystyle \int_{-10}^6 g(x) \, dx

which we can do by splitting up the integral at x = 4 and using the known values above. Then the integral we want is

\displaystyle \int_{-10}^6 g(x) \, dx = \int_{-10}^4 g(x) \, dx + \int_4^6 g(x) \, dx = 3 + 5 = \boxed{8}

7 0
2 years ago
What is the slope of the line shown?
eimsori [14]
Answer is D slope -3
6 0
3 years ago
Read 2 more answers
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