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3 years ago

Help plzzzz!!!!!!!!!!!!

Mathematics

2 answers:

wlad13 [49]3 years ago

7 0

Answer:

the first one on the right

Step-by-step explanation:

lianna [129]3 years ago

7 0

Answer:

The bottom one on the right.

Step-by-step explanation:

The explanation is correct. -9 is less then -3, because -3 is closer to 0 than -9.

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Please help! i can’t write the equation on here so look at the picture.

Anvisha [2.4K]

Answer:

So if x= 1 , y= -20 , z = -5 , we just have to replace those values on the equation

$\frac{\sqrt{yz}}{(z-x)^{2} + y } =$ $\frac{\sqrt{(-20) * (-5)}}{(-5-1)^{2} + (-20) } =$ $\frac{\sqrt{100}}{(-6)^{2} -20 }$ $= \frac{10}{16} =\frac{5}{8}$

7 0

3 years ago

Read 2 more answers

V=4/3? r^2 Suppose that, for the sphere in the video, instead of being told how fast the radius is changing, we're told that the

grigory [225]

Answer:

$\frac{dr}{dt}=0.01$ cm per second

$\frac{dS}{dt}=320 square centimeter per secondStep-by-step explanation:We are given that volume of sphere [tex]V=\frac{4}{3}\pi r^3$

Volume of sphere is increasing at a constant rate

$\frac{dV}{dt}=4$ cubic centimeters per second

We have to find the rate of radius at which increasing

when r= 10 cm

Differentiating w.r.t time

$\frac{dV}{dt}=\frac{4}{3}\pi\cdot3r^2\frac{dr}{dt}$

$4=4 r^2\frac{dr}{dt}$

$\frac{dr}{dt}= \frac{1}{r^2}=\frac}{1}{(10)^2}=0.01$ cm per second

Now ,we are given that surface area of sphere

$S=4\pir^2$

Differentiate w.r.t time then we get

$\frac{dS}[dt}=8\pir\frac{dr}{dt}$

$\frac{dS}{dt}=8\pi\times 20\times 2$

$\frac{dS}{dt}=320$ cm per second

5 0

3 years ago

Calculate the area of rectangle if the area of the shaded triangle is 2.6cm

bagirrra123 [75]

Answer:

Step-by-step explanation:

3 0

3 years ago

What is the volume of the following rectangular prism 5/2 27/5

OleMash [197]

Answer:

13.5

Step-by-step explanation:

if im not mistaken there must be one more number because to find volume its length x breath x height

hope this helps

6 0

3 years ago

Find AREA fast pls ASAP

Leto [7]

The area of the whole figure is 92.1
the area of the rectangle is 78
the area of the half circle is 14.13
add them together, you get 92.1

hope this helps :D

8 0

3 years ago