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2 years ago

Change a speed of 630 kilometres per hour to a speed in metres per second. Show your working

Mathematics

1 answer:

kupik [55]2 years ago

5 0

Answer:

1750 m/s

Step-by-step explanation:

1km = 1000m

1 hour = 60 minutes = 3600 seconds

( 630 * 1000 )/ (60 * 60)

= 1750 m/s

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Which angle number is adjacent to angle to IHL

wariber [46]

Answer:

Angle 8

Step-by-step explanation:

So, adjacent means next to each other, so angle 8 is also adjacent to angle 9 :)

5 0

3 years ago

Please help round to the nearest tenth

Romashka [77]

Answer:

a = 4.6

b = 4.2

Step-by-step explanation:

to find a, use cos:

⇒ cos = $\frac{adjacent}{hypothenuse}$

⇒ cos 30 = $\frac{13}{a}$

cos of 30 is 0.154

⇒ 0.154 = $\frac{13}{a}$

multiply 13 on both sides:

⇒ 0.154 x 13 = $\frac{13}{a}$ x 13

⇒ 4.62 = a

round to the nearest tenth:

⇒ 4.62 = 4.6

⇒ a = 4.6

to find b, use tan:

⇒ tan = $\frac{opposite}{adjacent}$

⇒ tan 60 = $\frac{b}{13}$

tan of 60 is 0.320

⇒ 0.320 = $\frac{b}{13}$

multiply 13 on both sides:

⇒ 0.320 x 13 = $\frac{b}{13}$ x 13

⇒ 4.16 = b

round to the nearest tenth:

⇒ 4.16 = 4.2

⇒ b = 4.2

6 0

3 years ago

Write the form of the partial fraction decomposition of the rational expression. Do not solve for the constants. 37 x2 − 6x

Dvinal [7]

Answer:

$\dfrac{A}{x}+\dfrac{B}{x-6}$

Step-by-step explanation:

Given the function $\dfrac{37}{x(x-6)}$ , to write the form of its partial fraction on decomposition, we will separate the two functions separated by an addition sign. The numerator of each function will be constants A and b and the denominator will be the individual factors of each function at the denominator. The partial fraction of the rational function is as shown below.