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coldgirl [10]
3 years ago
10

Please answer and explain

Mathematics
1 answer:
Soloha48 [4]3 years ago
5 0

30 degrees and x are complementary angles, which means that they're adjacent angles that add up to 90 degrees. How you know they add up 90 degrees is because of the supplementary angles, which are angles that have a sum of 180 degrees. x + 30 + 90 = 180, using algebraic steps you get x = 60. There are other ways of getting to x = 60, but that's the quickest.

x = 60

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Answer:

(1/117). decimal is 0.008547(6 decimal places)

Step-by-step explanation:

Ok here u go

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3 years ago
What is the mode of the data set?<br> a. 90<br> b. no mode<br> c. 85.5<br> d. 49
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Step-by-step explanation:

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3 years ago
A baseball is hit and its height is given by h = 29.4t – 4. 9t^2, where h is the
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Answer:

44.1m

Step-by-step explanation:

we are given a quadratic function which represents the height and time of a baseball

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recall that,

\displaystyle \rm t= \frac{ - b}{  2a}

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notice that, our given function is not in standard form i.e

\displaystyle f(x) = a {x}^{2}  + bx + c

let's make it so

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therefore we got

our <em>a</em> is -4.9 and <em>b </em>is 29.4

so substitute:

\displaystyle\rm t=  \frac{ -( 29.4)}{  2 \cdot - 4.9}

remove parentheses and change its sign:

\displaystyle\rm t=  \frac{ -29.4}{  2 \cdot - 4.9}

simplify multiplication:

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simplify division:

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\displaystyle H_{\text{max}}=29.4\cdot 3-4.9\cdot {3}^2

simplify square:

\displaystyle H_{\text{max}}=29.4\cdot 3-4.9\cdot 9

simplify mutilation:

\displaystyle H_{\text{max}}=88.2-44.1

simplify substraction:

\displaystyle H_{\text{max}}=44.1

hence,

the maximum height of the baseball is 44.1 metres

4 0
3 years ago
Read 2 more answers
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Diano4ka-milaya [45]

Answer:

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You might want to check what I did just in case cause it's been a few years but it should be good. I hope this helps!

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