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Oksanka [162]
3 years ago
8

Find the surface area of the pyramid. The side lengths of the base are equal.

Mathematics
1 answer:
Phantasy [73]3 years ago
5 0

Answer:

251.6

Step-by-step explanation:

triangle= 1/2bh

1/2(8)14 times 4

224

1/2(6.9)8

27.6

now you add them

224+27.6= 251.6

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A muffin recipe calls for 3 times as much flour as sugar.
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f=3s

f = the amount of flour

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7 0
2 years ago
What is 265,200 rounded to the nearest hundred thousand
MaRussiya [10]

265,000

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6 0
3 years ago
Read 2 more answers
(5x^2 - 2x^3 + x) - (6x^3 - 8x^2 - x)
pashok25 [27]

Answer:

-8x^3+13x^2+2x

8 0
3 years ago
Read 2 more answers
Whats the answer to that question?
gavmur [86]

Answer:

-0.9090... can be written as \frac{10}{11}.

Explanation:

Any <em>repeating </em>decimal can be written as a fraction by dividing the section of the pattern to be repeated <em>by </em>9's.

We can start by listing out

0.909090... = 9/10 + 0/100 + 9/1000 + 0/10000 + 9/100000 + 0/1000000 + ...

Now. we let this series be equal to x, that is

x = 9/10 + 0/100 + 9/1000 + 0/10000 + 9/100000 + 0/1000000 + ...

Now, we'll multiply both sides by 100 .

100x = 90 + 0 + 9/10 + 0/100 + 9/1000 + 0/10000 + ...

Then, subtract the 1st equation from the second like so:

100x = 90 + 0 + 9/10 + 0/100 + 9/1000 + 0/10000 + 9/100000 + 0/1000000 + ...

-x = - 9/10 - 0/100 - 9/1000 - 0/10000 - 9/100000 - 0/1000000 - ...

And we end up with this:

99x=90

Finally, we divide both sides by 99 in order to isolate x and get the fraction we're looking for.

x=\frac{90}{99}

Which can be reduced and simplified to

x=\frac{10}{11}

Hope this helps!

4 0
3 years ago
A biologist is researching a newly-discovered species of bacteria. He puts 1,000 bacteria into what he has determined to be a fa
Masteriza [31]
The bacteria grow from 1,000 bacteria into 12,500 bacteria in 12 hours.  The exponent function would be
:an= ao(1+r)^t12.500= 1,000(1+r)^121,000(12.5)= 1,000(1+r)^1212.5= (1+r)^121+r= 1.23427r= 0.23Number of bacteria after 20hr would be:an= ao(1+r)^tan= 1,000(1+0.23)^20an= 1,000(62.821 )an= 62,821
8 0
2 years ago
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