Answer:$18
Step-by-step explanation: You subtract 30 minus 12 and you get 18
Answer:
2.8 + 2x = 0.6
______
8
multiply by 8 to both sides
x8 x8
2.8 + 2x = 4.8
subtract 2.8 from both sides
-2.8 -2.8
2x = 2
divide by 2 from both sides
/2 /2
x = 1
Answer:
23.3 cm
Step-by-step explanation:
use Pythagoras Theorem
length BD= 16²+10²= 356
√356= 18.9 cm
length DH= 30²-18.9²= 542.8
√542.8= 23.3 cm
DH=AE
Hence, AE= 23.3 cm
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Knowing the roots first write the equation in factored form:
(X - 3/4)(x +5) = 0
Now use the FOIL method ( multiply each term in one set of parentheses by each term the other set:
X•x + x•5 -3/4•x -3/4•5
Simplify:
X^2 + 5x -3/4x -3 3/4
Combine like terms:
X^2+ 4 1/4x - 3 3/4
Answer:


Use F.O.I.L, (First Outer Inner Last) to multiply. Start with -3x^y * 5xy^2
Start with similar terms

Move onto the xy portion of the problem

Start with similar terms

Combine the two together

The answer is Option A