Kong took 15\%15%15, percent fewer seconds than Nolan took to complete his multiplication timed test. Kong took 858585 seconds.
1 answer:
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Answer:
C) 12.5
The length of BC = 12.5cm
Step-by-step explanation:
<u><em>Step(i):-</em></u>
<em>Given that ΔABC</em>
<em>Given that AB = 15cm and ∠A = 40°</em>
<em>we will use trigonometric function</em>
<em> </em><em></em>
<em> </em><em></em>
<u><em>Step(ii):-</em></u>
we know that tan40° = 0.83909
BC = 15 × tan 40°
BC = 12.58649
BC = 12.5cm
<u><em>Final answer:-</em></u>
The length of BC = 12.5cm
<em></em>
Answer:
In standard form 42=
In unit form, 42 as 4 tens 2 ones
Step-by-step explanation:
<u>Standard form</u>: It is the way of writing down the numbers easily in a very large or small numbers.
Rules for writing a number in standard form is that first you write down a number between 1 and 10, then multiply the number with 10(to the power of a number).
Now, to write
42 in standard form: .
Unit form: it is a form that express the number by giving the number of place value within the number.
Unit form of 42:
42 is written as 4 tens , 2 ones.