What is 423.408 rounded to the neatest hundredth

Mathematics

2 answers:

Tatiana [17]3 years ago

5 0

423.408 = 423.41
0.08 is nearer to 0.1 than 0.001

xeze [42]3 years ago

4 0

The hundredth is the second decimal place. You know the rounding rules are where you look at the previous place and if it's 5 or above the number place your rounding to goes up. So the answer is 423.41

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<img src="https://tex.z-dn.net/?f=0%20%3D%20%20%20-%204.9t%20%7B%7D%5E%7B2%7D%20%20%2B%2027t%20%2B%202.4" id="TexFormula1" title

marta [7]

$0 = - 4.9t {}^{2} + 27t + 2.4$
Convert decimals to fractions

$0 = - \frac{49}{10} t {}^{2} + 27t + \frac{12}{5}$
Multiply both sides by 10

$0 = - 49t {}^{2} + 270t + 24$
Move expression to the left.

$0 + 49t {}^{2} - 270t - 24 = 0$
Remove zero.

$49t {}^{2} - 270t - 24 = 0$ Solve the quadratic equation.

$t = \frac{ - ( - 270) + - \sqrt{( - 270) {}^{2} - 4 \times 49 \times ( - 24) } }{2 \times 49}$
Remove parenthesis and calculate.

$t = \frac{270 + - \sqrt{72900 + 4704} }{98}$
Add the numbers

$t = \frac{270 + - 77604}{98}$
Separate the solutions

$t = \frac{270 + \sqrt{77604} }{98} \\ t = \frac{270 - \sqrt{77604} }{98}$
The final solution are
$t1 = \frac{270 - \sqrt{77604} }{98} , t2 = \frac{270 + \sqrt{77604} }{98}$

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3 years ago

What is the probability of flipping heads on a coin and then spinning a number greater than 6 on a spinner that is divided into

gavmur [86]

P(H) = 1/2
P(>6) = 9/15 = 3/5

P(Both H AND >6) = 1/2 * 3/5 = 3/10

3 0

3 years ago

Read 2 more answers

The solution to 6x = 48 is x = ___. A. 5 B. 6 C. 7 D. 8

blsea [12.9K]

D.8
Multiply something to 6 that makes 48! So 6•8 would be 48!

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