distribute
-3y -9 = 2y+3
add 3y to each side
-9 = 5y +3
subtract 3 from each side
-12 = 5y
divide by 5
-12/5 = y
y = -2 2/5
Answer:
27
Step-by-step explanation:
if you do the triangle formula bxh/2
9x6/2=27
ANSWER
D) 10
EXPLANATION
We want to solve the radical equation,

Square both sides,

Expand brackets on right hand side,

Rewrite in general quadratic equation form,

Factor to obtain,

Apply the zero product principle to get,

We put n=2 into the equation to get,


This statement is false, hence 2 is an extraneous solution
We put n=10, to get



This is true, hence the only solution is
Answer:
<u>She needs 40.4 feet of wood.</u>
Step-by-step explanation:
➾ She had 8 pieces of wood that are 6.2 feet each, so <u>total length of wood she had</u> = 8×6.2
= <u>49.6feet</u>.
➾She needs total 90feet. of wood and she had already 49.6 feet of wood.
So, now wood she needed = 90-49.6
= <u>40.4feet</u><u>.</u>
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Hope it helps you:)