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3 years ago

The difference of two numbers is 57. the larger number is three less than six times the smaller number. find the numbers.

Mathematics

1 answer:

Sauron [17]3 years ago

6 0

The smaller number is twelve the larger number is 69

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Ik it seems easy but can someone help

White raven [17]

What are you suppose to find i feel like it doesn't really say

5 0

3 years ago

Find the volume of the wedge-shaped region contained in the cylinder x2 + y2 = 49, bounded above by the plane z = x and below by

fiasKO [112]

$\displaystyle\iiint_R\mathrm dV=\int_{y=-7}^{y=7}\int_{x=-\sqrt{49-y^2}}^{x=0}\int_{z=x}^{z=0}\mathrm dz\,\mathrm dx\,\mathrm dy$

Converting to cylindrical coordinates, the integral is equivalent to

$\displaystyle\iiint_R\mathrm dV=\int_{\theta=\pi/2}^{\theta=3\pi/2}\int_{r=0}^{r=7}\int_{z=r\cos\theta}^{z=0}r\,\mathrm dz\,\mathrm dr\,\mathrm d\theta$
$=\displaystyle\int_{\theta=\pi/2}^{\theta=3\pi/2}\int_{r=0}^{r=7}-r^2\cos\theta\,\mathrm dr\,\mathrm d\theta$
$=-\displaystyle\left(\int_{\theta=\pi/2}^{3\pi/2}\cos\theta\,\mathrm d\theta\right)\left(\int_{r=0}^{r=7}r^2\,\mathrm dr\right)$
$=\dfrac{2\times7^3}3=\dfrac{686}3$

4 0

3 years ago

If f and g are functions of time, and at time t = 2, f equals 5 and is rising at a rate of 6 units per second, and g equals 7 an

Yuliya22 [10]

Answer:

f/g at t =3 will be 9/8

d/ddx(f(x)/g(x))=f'(x)d(x)-f(x)g'(x)/(g'(x))^2

rate of change=(6*8)+(9*9)/9^2

rate of change =43/27=1.5925

8 0

3 years ago

Read 2 more answers

7th Math Homework to<br> Parent Signature<br> 1. What is the value of the expression -9 x 2.22

____ [38]

Answer:

-19.98

Step-by-step explanation:

all you need to do is multiply 2.22 by -9 and you will get the answer -19.98

5 0

2 years ago

- 2(x-8)= 30<br> i need help with that one

beks73 [17]

Step-by-step explanation:

-2x + 16 = 30

-2x = 30 - 16

-2x = 14

- ( 2x = - 14

x = - 14 /2

x = - 7

6 0

2 years ago