Answer:
? = 7.
Step-by-step explanation:
The two triangles are similar because of the AA Theorem.
The larger triangle's side that is equal to 9 + 3 corresponds to the smaller triangle's side length of 9, while the larger triangle's 21 + ? side corresponds to the smaller triangle's 21 side. Now, we can set up a proportion!
? + 21 = 7 * 4
? + 21 = 28
? = 28 - 21
? = 7
Hope this helps!
14. The answer is A; 8 is the opposite reciprocal of -1/8, which is what you need for perpendicular slope.
15. The answer is C; you can guess and check by plugging points into the equation.
Divide $15.40 and 60% (15.40/0.6)
And you should get &25.67.
The answer is $25.67
(I'm not totally sure but there may be someone else with a more accurate/correct answer.)
Here is what I got (Red represents my work, blue represents to follow which steps and highlighter represents what the answer is):
Answer:
Step-by-step explanation:
#1
SA=2(LW+LH+WH)
SA=2(5+4+3)
SA=2(12)
SA=24
#2
SA=bH+2LS+bL
SA=4+2x7+8
SA=4+14+8
SA=25
#3
SA=2(LW+LH+WH)
SA=2(13+17+2)
SA=2x32
SA=64
(the rest of the shapes
i can't see but you can use that formula to do it <3 GL!)
