Answer:
51 cm²
Step-by-step explanation:
rectangle = 6x12=72
triangle = 1/2(7)(6)=21
Non-shaded=72-21=51 cm²
Answer:
28
Step-by-step explanation:
the triangles are congruent, so we know that 2x + 10 = 3x + 1
using basic algebra we find that x is equal to 9
to find angle q, just plug the x value, 9, to 3x + 1, which gives us 3 × 9 + 1, or 28
Hope this helps! :)
Answer:
B
Step-by-step explanation:
First, we have to find the rate of change for this problem. To do this, we subtract any two numbers of days and the coordinating two total questions. Let's just use the first two rows. 8-4=4, and 40-20=20. For every 4 days, he answers 20 questions. We can further simplify this by dividing both sides by 4. 4/4=1, and 20/4=5. For every 1 day, he answers 5 questions. Now, to find 16 days, we just multiply both sides by 16. 16*1=16 and 16*5=80. For every 16 days, he answers 80 questions. 80 is our answer.
Hope this helps!
Answer:
Step-by-step explanation:
x + y = 4 ---------------(i)
x = 4-y
7x + 9y = 42 -----------(ii)
Plug in x = 4-y in equ (ii)
7*(4 - y) + 9y = 42
28 - 7y +9y = 42
28 + 2y = 42
2y = 42 - 28
2y = 14
y = 14/2
y = 7
x = 4 - y
x = 4 - 7
x = -3
Answer: first one (-4,1) and the second is (0,1)
Step-by-step explanation:
