Answer:
11hrs babysitting
Step-by-step explanation:
No error - A and B are completely right, and using the subtraction law D is right
Answer:
Not a possible math equation, sorry.
Answer:
B 7
Step-by-step explanation:
Since the triangles are similar by AAA
We can use ratios to find the length x (which is PR)
5 15
-------- = ------------
x 21
Using cross products
5 * 21 = 15 *x
Divide each side by 15
5/15 * 21 = 15x/15
1/3 * 21 =x
7 =x
ABC is a right triangle right-angled at B.
AC is the hypotenuse, length 96cm
Angle C=30 degrees, therefore AB is the short leg opposite angle C.
sin(30)=opp/hyp=AB/AC=AB/96
=>
AB=96sin(30)=96(1/2)=48 cm.
