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seropon [69]
3 years ago
11

Explain why 9^4 = 3^8.

Mathematics
2 answers:
olga55 [171]3 years ago
6 0

<em> </em><em>9</em><em>^</em><em>4</em><em>=</em><em>3</em><em>^</em><em>8</em>

<em>It</em><em> </em><em>is</em><em> </em><em>bcoz</em><em> </em><em>if</em><em> </em><em>we</em><em> </em><em>multiply</em><em> </em><em>9</em><em>*</em><em>9</em><em>*</em><em>9</em><em>*</em><em>9</em><em> </em><em>then</em><em> </em><em>the</em><em> </em><em>result</em><em> </em><em>will</em><em> </em><em>be</em><em> </em><em>6</em><em>5</em><em>6</em><em>1</em><em> </em><em>and</em><em> </em><em>if</em><em> </em><em>we</em><em> </em><em>multiply</em><em> </em><em>3</em><em> </em><em>to</em><em> </em><em>8</em><em> </em><em>times</em><em> </em><em>then</em><em> </em><em>the</em><em> </em><em>result</em><em> </em><em>will</em><em> </em><em>be</em><em> </em><em>6</em><em>5</em><em>6</em><em>1</em><em>.</em>

<em>so</em><em> </em><em>both</em><em> </em><em>are</em><em> </em><em>same</em><em>.</em><em>T</em><em>h</em><em>u</em><em>s</em><em>,</em><em>9</em><em>^</em><em>4</em><em>=</em><em>3</em><em>^</em><em>8</em>

DiKsa [7]3 years ago
4 0

Answer:

9^4 = [3^2]^4 = 3^8

Step-by-step explanation:

9^4 can be re-written with 3 as the base:

9^4 = [3^2]^4 = 3^8

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Help!!!! Please just number 11 worth 90 points!!!!!
timurjin [86]

Answer:

6.75 hrs are missing

Step-by-step explanation:

First, change all fractions into decimals:

8 = 8

7 1/4 = 7 + 0.25 = 7.25

8 1/2 = 8 + 0.50 = 8.50

Next, add all numbers gotten together:

8 + 7.25 + 8.50 = 23.75

Subtract the number gotten from the total

30.5 - 23.75 = 6.75

~


3 0
3 years ago
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an ice cream factory makes 220 quarts of ice cream in 5 hours how manoy quarts could be made in 36 hours?what was that rate per
mrs_skeptik [129]
In 36 hours you'll have 1,584 in a entire day you'll end up with 1,056
8 0
3 years ago
Joe is finding the length of a rectangular prism. The volume of the prism is 204 ft3. The width is 3.5 ft, and the height is 5 f
zmey [24]

Answer:

B. He added 3.5 and 5 when he should have multiplied them.

Step-by-step explanation:

Let's observe Joe's steps:

- V = lwh

- 204 = 3.5 * (5) * l

Here, * means to multiply, so we're supposed to multiply 3.5 to 5, which would give you the answer 17.5. Unfortunately, look what Joe got: he obtained the value of 8.5, and if we observe, 3.5 + 5 = 8.5.

That's how we know that Joe added instead of multiplied, as he should have done. Thus, the answer is B.

8 0
3 years ago
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HELP ASAP TIMED !!!! What is the exact value of cos(c + d), given Sine c = StartFraction 24 Over 25 EndFraction for c in Quadran
Keith_Richards [23]

9514 1404 393

Answer:

  D

Step-by-step explanation:

In the second quadrant, ...

  c = 180° -arcsin(24/25) ≈ 106.26°

In the third quadrant, ...

  d = 360° -arccos(-3/4) ≈ 221.41°

Then cos(c+d) = cos(327.67°) ≈ 0.84498

This is a positive irrational number, greater than 21/100, so the only reasonable choice is the last one:

  \dfrac{21+24\sqrt{7}}{100}\approx 0.84498

_____

Perhaps you want to work this out using the trig identities.

  cos(c) = -√(1 -sin(c)²) = -7/25

  sin(d) = -√(1 -cos(d)²) = -(√7)/4

Then the desired cosine is ...

  cos(c+d) = cos(c)cos(d) -sin(c)sin(d)

  cos(c+d) = (-7/25)(-3/4) -(24/25)(-√7/4)

  cos(c+d) = (21 +24√7)/100 . . . . matches choice D

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2 years ago
Someone help pls:)))))))))
timama [110]
The side b = 136 as I think it’s the two equal sides
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