Mr jones does not have enough string to place around the chalkboard
Answer: D
Step-by-step explanation:
if you replace x with -2 and y with -3 you should get it right
<em>FIRST QUESTION:</em>
The slide is 21 ft long. You can imagine that this slide is actually the <u>hypotenuse</u> of a right angled triangle.
To get to the top of the slide you must climb up a vertical 9 foot ladder. You can imagine that this ladder is the <u>opposite</u> side of the right angled triangle.
Now, the distance between the bottom of the ladder and the bottom of the slide can be thought of as the <u>adjacent</u> side of this right angled triangle.
We know, thanks to Pythagoras that:
A²+O²=H²
A = Adjacent length = b
O = Opposite length
H = Hypotenuse
Therefore:
b²+9²=21²
b²=21²-9²
b²=360
b=√360=18.97 (2dp)
So the answer you are looking for is <u>19 feet</u> to the nearest tenth (answer: B).
<em>SECOND QUESTION:</em>
18²+24²=30² (Yes)
Therefore the answer to the second question is YES (answer: A).
Well I think if I was a boy I would be a
Answer:
Technically he isn't, but he is off by only 0.5 cm.
Step-by-step explanation:
To check, we can use pythagorean theorem:
22.8^2 + 13.82^2 = about 22.6
However, Mr. Lim got it as around 26.1
