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4 years ago

13

Is it A,B,C, or D? Please Help. MATH

1 answer:

Solnce55 [7]4 years ago

6 0

In figure B the tetra shape has been rotated 90 degreez

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Find the value of x in the parallelogram below.

scoundrel [369]

X+53=180
180-53=x
x=127

7 0

3 years ago

What is 780 in scientific notation?

Yuki888 [10]

Scientific notation is
x*10^y such that
1<u><</u>x<10

780=7.8 times 100=7.8 times 10^2

7.8*10^2

4 0

4 years ago

Read 2 more answers

How do you solve 13x+8-15x=6+x+11

AfilCa [17]

First you need to combine like terms

13x+8-15x=6+x+11

-2x+8=x+17
-x -8 -x -8

-3x=9
--- ----
-3 -3

x=-3

I hope I've helped!

4 0

3 years ago

Fill in the table using this function rule <br> y=- 10x + 2

wariber [46]

I’m not to sure if their should’ve been a picture included or not but if you’re talking about a table - table then just wrong the line diagonal. Starting with the line at the top left running in the middle (0) to the bottom right. Hope that helped a bit?? Sorry if it’s not correct, tried helping to the best of my abilities.

3 0

3 years ago

webassign If a snowball melts so that its surface area decreases at a rate of 6 cm2/min, find the rate at which the diameter dec

drek231 [11]

Answer:

The answer is $\frac{3}{10\pi } cm/min$

Step-by-step explanation:

Assuming the snowball is a perfect sphere, then if A denotes the surface area and D the diameter then:

$A=4\pi r^{2} = 4\pi (\frac{D}{2} )^{2} =\pi D^{2}$

Differentiating wrt r we have:

$\frac{dA}{dD} =2\pi D$

We are told that $\frac{dA}{dt}= -6$ and we want to find $\frac{dD}{dt}$

By the chain rule we have:

$\frac{dA}{dD}=\frac{dA}{dt}.\frac{dt}{dD}=\frac{\frac{dA}{dt} }{\frac{dD}{dt} }$

∴ $2\pi D=-\frac{6}{\frac{dD}{dt} }$

∴ $\frac{dD}{dt}=-\frac{6}{2\pi D}$

When D=10 then

$\frac{dD}{dt} =-\frac{6}{10*2\pi } =-\frac{3}{10\pi }$

The sign (-) shows that the D is decreasing.

3 0

3 years ago