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3 years ago

What is 276,431 rounded to the nearest ten thousand

Mathematics

1 answer:

viva [34]3 years ago

3 0

The answer is 280,000 rounded to the nearest ten thousand.

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5^(2x-1)+5^(x+1)=250 how do you solve? thank you

zepelin [54]

Answer:

x = 2

Step-by-step explanation:

Exponential Equations

Solve:

$5^{2x-1}+5^{x+1}=250$

Separate each exponential:

$5^{2x}5^{-1}+5^{x}5^{1}=250$

Operating:

$\displaystyle \frac{5^{2x}}{5}+5^{x}5=250$

Multiplying by 5:

$5^{2x}+25\cdot5^x=1250$

Rearranging:

$5^{2x}+25\cdot5^x-1250=0$

Recall that:

$5^{2x}=(5^{x})^2$

$(5^{x})^2+25\cdot5^x-1250=0$

Calling

$y=5^{x}:$

$y^2+25y-1250=0$

Factoring:

$(y-25)(y+50)=0$

There are two possible solutions:

y=25

y=-50

Since

$y=5^{x}$

y cannot be negative, thus:

$5^{x}=25=5^2$

The solution is:

x = 2

8 0

3 years ago

!!!! HELP PLEASE !!!! WILL GIVE BRAINLIEST!!!!!!!!!

AnnyKZ [126]

Answer:

Step 1 is incorrect because it was mutiplied. Instead, you should divide.

Step-by-step explanation:

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2 years ago

Solve v=1/3 bh for b

katovenus [111]

Answer:

3v/h = b

Step-by-step explanation:

1/3 is a given fraction and to get rid of it you must multiply by it's reciprocal of 3/1 or 3. You will also multiply the other side by 3

3 * v = (1/3 bh) * 3 --> 3v = bh

divde both sides by h and you get 3v over h = b

3v/h = b

Hope this helps!

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2 years ago

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2/3 minus 16/32 what’s the answer

antiseptic1488 [7]

Answer:

1/6

Step-by-step explanation:

LCD = 96

2(32) - 16(3)/ 3(32) = 64 - 48/96

= 16/96

Simplify:

16/ 16 = 1

96/16 = 6

2/3 - 16/32 = 1/6

Sorry if my work might seem confusing. If it is, then try searching "fraction calculator." It really helps :)

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3 years ago

Abby is constructing the inscribed circle for △JKL .

Nady [450]

Just took quiz. Correct answer is B

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2 years ago

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