Question

3. A rectangular pasture has a fence around the perimeter. The length of the fence is 16x7 and the width is 48x4. What is the area of the pasture?

Answer 1

So, the length is 16 * 7 and width is 48 *4?

Answer 2

I think this is \[768x ^{11}\]

Answer 3

And yes it is. I just worked the problem. Not sure if I did it right or not.

Answer 4

Well, just multiply those two numbers together. So (16*7) * (48*4) = l*w = 112*192=21504 is area in w/e unit. so ft^2, m^2, cm^2, yd ^2)

Answer 5

Oh im so confused.

Answer 6

so my answer wasnt right?

Answer 7

Is it an x? or a multiply sign???

Answer 8

its an x not a multiply sign

Answer 9

Okay then, it's different, please use the equation editor okay?\[ 16x^7 * 48x^4 = 768x^{11}\]

Answer 10

okay this is my whole problem.
\[The length of the fence is 16x ^{7} and the width is 48x ^{4}\]

Answer 11

I just solved it above. Anyhow, next time. Just use normal text. But when you need ONLY the math part, use the equation editor.

Answer 12

okay i will. heres another one.

4. What is the simplified form of written in scientific notation?

\[(3.25 × 10^{3})(7.8 × 10^{6})\]

Answer 13

Just expand it out: You can do this on any calc. Even google. 25350000000

Answer 14

what do you mean? these are my options.
\[2.535 × 10^{10}\]
\[2.535 × 10^{18}\]
\[2.535 × 10^{19}\]
\[25.35 × 10^{9}\]

Answer 15

Oh, just convert it to the appropriate scientific notation then, which is: option 1.

Answer 16

can you tell me how you got option 1? cause I got option 2. because I multipled the exponents.

Answer 17

You can't do that for this. You have to expand them out, multiply those numbers, and then put the answer in scientific notation.

Answer 18

oh goodness, I did not know that. But I do now. Okay now all I have is one more problem and I'll be done. Can you help me with it??

Answer 19

nvm. I got the answer :)