A.
To solve, you need to get the variable by itself.
Order of operations:
Square root both sides.
(x-5)= plus/minus root 3, as 3 is not a perfect square.
Now you need to add 5 to both sides to get it to disappear on the side with the x.
x=root3 +or - 5, which can be rearranged so that 5 is the first term.
Answer:
x = -10
Step-by-step explanation:
Answer:
137.5 in^2
Step-by-step explanation:
So, this is basically a rectangle and two right-sides triangles.
First the rectangle: Formula is A=wl
Replace the Values: A = 14*7 98 in^2
Then we solve for the two right-sides triangles.
A= 1
/2a
h=
1
/4
b
^2
sin
(2
θ
)
Top trinangle= A = 25.5 in^2 (height 7 in base 7 in)
Bottom Trinagle A = 14 in^2 (height 7 in base 4 in)
Add results:
98+25.5+14 = 137.5 in^2
Answer:
20.4 pounds
Step-by-step explanation:
Given that:
Weight of a coin = 7^-2 pounds
Weight of 1000 coins will be :
Weight per coin * number of coins
7^-2 * 1000
0.0204081 * 1000
= 20.408 pounds
= 20.4 pounds
Answer:
B.
Step-by-step explanation:
81x - 36 (divide by 9)
9(9x - 4)
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