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3 years ago

11

Sally and Natalia both drew a circle on their papers. Without looking, Sally said that her circle was similar to Natalia's circl

e. Explain why Sally is right.

1 answer:

kari74 [83]3 years ago

7 0

Because the radius is properly the same or the volume is the same

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Paula rows 6 miles upstream in 3 hours she returns downstream in 2 hours. Which is the rate Paula rows in still water? What is t

KiRa [710]

Answer:

Upstream - 2 miles per hour

Downstream - 3 miles per hour

Step-by-step explanation:

For the speed upstream, the answer would be 2 miles per hour (mph), because 6÷3=2.

For the speed downstream, the answer would be 3 miles per hour (mph), because 6÷2=3.

Both answers come in similar methods. Hope this helps you!

If you don't mind, please mark my answer brainliest!

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3 years ago

Read 2 more answers

the price of an item has been reduced by $2.72 . the new sale price is $96.09 . what was the original price?

stellarik [79]

You add the two numbers together and get $98.81

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3 years ago

What is the value of x? <br>10<br>15<br>30<br>45

DochEvi [55]

X is 0,in most situations,but could you provide a picture next time?

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3 years ago

Find the linear approximation of the function f(x, y, z) = x2 + y2 + z2 at (4, 4, 7) and use it to approximate the number 4.022

miss Akunina [59]

Answer:

80.66

Step-by-step explanation:

$L\left( x \right) = f\left( a \right) + f'\left( a \right)\left( {x - a} \right)$

$f(x, y, z) = x^2+y^2+z^2$

Since we have three variables,

$L(x, y,z) = f(a, b,c) + f_x (a, b,c) (x - a) + f_y (a, b,c) (y - b) +f_z(a,b,c)(z-c)$

$f(4, 4, 7) = 4^2+4^2+7^2=81$

$f_x (a, b,c)=2x=2*4=8\\f_y (a, b,c)=2y=2*4=8\\ f_z(a,b,c)=2z=2*7=14$

Therefore:

$L(x, y,z) = 81+ 8(x - 4) + 8 (y - 4) +14(z-7)$

Using the above:

f(4.02, 3.99, 6.97) =81+ 8(4.02 - 4) + 8 (3.99 - 4) +14(6.97-7)=80.66.

The approximation of $4.02^2 + 3.99^2 + 6.97^2$ is 80.66000.

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3 years ago

fias goal was to raise 5000 dollars to help protect to protect manatees she raised 5000 dollars what percennt of goal did she ac

zheka24 [161]

100 percent of her goal

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3 years ago