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3 years ago

Can somebody help me?

Mathematics

1 answer:

dusya [7]3 years ago

3 0

A) is the answer ( 3x-y)

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A car can travel 208 kilometers on 26 liters of gasoline . how far can it travel on 14 liters ?

fenix001 [56]

Answer:

112 kilometers

Step-by-step explanation:

the reason why is because if you divide 208 by 26 you get 8 then multiply it by 14 to get the answer

8 0

3 years ago

Martina jarred 25 liters of jam after 5 days. How many days does Martina need to spend making jam if she wants to jar 50 liters

Zina [86]

Answer:

Martha needs 10 more days

Step-by-step explanation:

25 Liters = 5 days

25*2=50 so double equation

25*2=5*2

50 Liters =10 days

it takes 10 days to jar 50 Liters of jam

3 0

3 years ago

Find the area of a triangle with base of 6m and height of 15m

dusya [7]

Answer:

45 meters

Step-by-step explanation:

$Area=\frac{1}{2}bh\\ A=\frac{1}{2}(6)(15)\\ A=3(15)\\A=45$

7 0

2 years ago

Read 2 more answers

NEED HELP FAST!!! picture is attached.

yuradex [85]

I think the answer could be C

6 0

3 years ago

Find the volume V obtained by rotating the region bounded by the curves about the given axis.

BartSMP [9]

Using the disk method, the volume is given by the integral

$\displaystyle \pi \int_{\pi/2}^\pi (9\sin(x))^2\,\mathrm dx = 81\pi \int_{\pi/2}^\pi \sin^2(x)\,\mathrm dx$

That is, each disk has a radius of y = 9 sin(x) and hence area = π (9 sin(x))². Add up infinitely many such disks by integrating. Then the volume is

$\displaystyle 81\pi \int_{\pi/2}^\pi \sin^2(x)\,\mathrm dx = \frac{81\pi}2 \int_{\pi/2}^\pi (1-\cos(2x))\,\mathrm dx \\\\ =\frac{81\pi}2 \left(x-\frac{\sin(2x)}2\right)\bigg|_{\pi/2}^\pi \\\\ = \frac{81\pi}2 \left( \left(\pi-\frac{\sin(2\pi)}2\right) - \left(\frac\pi2 - \frac{\sin(\pi)}2\right) \right) \\\\ = \boxed{\frac{81\pi^2}4}$

8 0

3 years ago