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3 years ago

0.0432 in scientific notation

Mathematics

1 answer:

maksim [4K]3 years ago

8 0

The answer in scientific notation is: 4.32 x 10^-2

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Someone please solve. I keep getting 66 but it's wrong.

sashaice [31]

The unlabeled part of the right angle is complementary to 68 degrees, so 22 degrees. y is supplementary to 78 degrees, so 102 degrees. z as the third angle in the small triangle is 180 less than the sum of the other two,

z = 180 - 22 - 102

Answer: 56 degrees

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3 years ago

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LOTS of points due today!!!!! 8-10

Karolina [17]

Answer:

they are 10 ppl in the crew

$12800×15/100=$1920

$10×100/80=$12.50

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2 years ago

1 + 5sin^2x= 7sin^2x solve trig equation. Can you show me how to solve this trig equation?

pantera1 [17]

Answer: $x = \frac{\pi}{4}\pm k\frac{\pi}{2}\,\,\,\,\,\,k=\{0,1,2,...\}$

Step by step:

$1 + 5\sin^2x= 7\sin^2x\\\sin^2 x\rightarrow z\\1 + 5z = 7z\\2z = 1\\z = \frac{1}{2}\implies \sin^2 x = \frac{1}{2}\\|\sin x| = \frac{1}{\sqrt{2}}\\\sin x = \pm\frac{1}{\sqrt{2}}=\pm\frac{\sqrt{2}}{2}\\\implies x = \frac{\pi}{4}\pm k\frac{\pi}{2}\,\,\,\,\,\,k=\{0,1,2,...\}$

(Used a table of common angles)

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3 years ago

Ms Ramos’s thumb measures 4 centimeters. Express the length in meters.

viva [34]

Answer:

1.1%

Step-by-step explanation:

it goes to meters and this is the answer

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3 years ago

PLS HELP TIMED QUESTION!!!

ser-zykov [4K]

Answer:

About 5043.58

Step-by-step explanation:

The standard form for an exponential decay after t time is:

$\displaystyle f(t)=a(r)^{t/d}$

Where a is the initial value, r is the rate decay, t is the time that has passed, and d is the amount of time it takes for 1 cycle.

The initial value is 9800. So a = 9800.

The quantity cuts in half. So, r = 1/2.

And it cuts in half every 6 days. For this question, we will convert this to hours. 6 days = 144 hours. So, we can let d = 144, where t will be in hours.

Therefore, our function is:

$\displaystyle f(t)=9800\Big(\frac{1}{2}\Big)^{t/144}$

Where t is the amount of time that has passed, in hours.

Then the quantity left after 138 hours will be:

$\displaystyle f(138)=9800\Big(\frac{1}{2}\Big)^{138/144}\approx 5043.58$

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2 years ago