Answer:serval cats and 21
Step-by-step explanation:
See https://web2.0calc.com/questions/help_29603.
1/√2
Step-by-step explanation:
Imagine a right-angled triangle, for e.g. Triangle ABC,
Where
B = 90°
Remember your Toa Cah Soh.
sin 45° = opposite / hypotenuse
If theta = 45°
Angles A and C = 45° (Sum of angles in a triangle equal = 180°)
Since theta are the same, we can also deduce that the length AB and BC are the same.
Take for example AB = BC = 1 = opposite
By the Pythagorean theorem,
AB² + BC² = AC²
1² + 1² = AC²
2 = AC²
AC = √2 = hypotenuse
Therefore:
sin 45° = opposite / hypotenuse
sin 45° = 1/√2
Answer: 1100 boys
Step-by-step explanation:
45% students are girls
45% girls in number = 900
1% be = 900x45= 20
55% students are boys
55% boys in number= 55x20= 1100 boys
1. First do 18,000 times .20 to get 3,600. Next minus 18,000 by 3,600 and you get $14,400 which is the answer.
2. First do 125 times .15 to get 18.75. Next minus 125 minus 18.75 to get 106.25. Then you do 106.25 times .05 to get 5.31. Finally, add 5.31 to to 106.25 and you get $111.56.
3. 17/39 as a decimal is .4358
4. First you do 45 times .06 to get 2.7. Finally you add 2.7 back onto 45 to get $47.7
5. true (i’m 99% sure on this question)
hope dis helped
