Answer:
a)8
b)13
Step-by-step explanation:
a) ar = c
a^2+b^2=c^2
4^2+7^2=c^2
16+49 = c2
c =
~8
b) sa= c
a2+b2=c2
7^2 + (15-4)^2
49+121 = c2
c=
= 13
I hope im right!!
Answer:
78
Step-by-step explanation:
help me with mine pls your smart
<span>From the problem, you can get this equation:
Jane is 2 years older than Sally
J=z+2
David is 4 times older than Jane.
D=4J
</span>Write two equivalent expressions that represent David’s age in terms of Sally’s age, z, and explain how the two expressions relate to one another.<span>Sally is z years old.
From the 2 equation above, you can get:
</span>D=4J
D=4(z+2)
D=4z+8
D-8=4z
(D-8)/4=z
The two equivalent expression would be D=4z+8 and (D-8)/4=z
The expression that more usefull would be D=4z+8 if you want to determine David age.
Answer:
Step-by-step explanation:
<u>Find the volume of cylinder:</u>
<u>Convert the dimensions into yards:</u>
- d = 24 inches = 24/36 yards = 2/3 yards ⇒ r = 1/2d = 1/2*2/3 = 1/3 yards
- h = 6 feet = 6/3 yards = 2 yards
<u>Find the volume by substituting the values:</u>
- V = 3.14*(1/3)²*2 = 0.69777 ≈ 0.7 yd³
Correct choice is C
H is 6. If you are not familiar with /3 you could time the whole equation by 3