Answer:
=10√5 or 22.36068 as a decimal
the ^ is to the power of
Step-by-step explanation:
2^2 x 5^3
= (you don't need the x it just did not let me put it in otherwise)
apply the exponent rule 2^2 x 5^3= 5^2 x 5 = √2^2x5^2x5
√2^2x5^2x5= √2^2 √5^2 √5= √2^2√5^2√5
next, apply the radical rule
√2^2=2 =2√5^2 √5
√5^2=5 = 2x5√5
=10√5 which is also 22.36068 as a decimal
Answer:
A. x=10
B. x=-19
C. x=53
D. x=-1/28
Step-by-step explanation:
A.
2x+3=23
2x=20
x=10
B.
-3(x+9)=30
x+9=-10
x=-19
C.
0.75x-12.75=27
0.75x=39.75
x=53
D.
1/2x+6=-8
1/2x= -14
1=-28x
x=-1/28
Answer:
Congruent
Step-by-step explanation:
∠3 and ∠7 are Complementary Angles. This means that they are congruent angles.
2x - y = 2
<u>6x - y = -2</u>
<u>-4x</u> = <u>0</u>
-4 -4
x = 0
2x - y = 2
2(0) - y = 2
0 - y = 2
<u>+ 0 + 0</u>
<u>-y</u> = <u>2</u>
-1 -1
y = -2
(x, y) = (0, -2)
Answer:
(2x + 5)(2x + 1).
(6x - 5)(2x + 1).
Step-by-step explanation:
4x^2 + 12x + 5.
Use the 'ac' method:
a * c = 4 * 5 = 20 so we need 2 numbers whose product is 20 and whose sum is +12.:- 2 and 10 look good, so we write:
4x^2 + 2x + 10x + 5
Now we factor by grouping:-
= 2x(2x + 1) + 5(2x + 1)
= (2x + 5)(2x + 1) (answer).
12x^2 - 4x - 5
ac = 12*-5 = - 60 and we need 2 numbers sum to -4 . these numbers could be -10 and + 6:
12x^2 + 6x - 10x - 5
= 6x(2x + 1) - 5(2x + 1)
= (6x - 5)(2x + 1) (answer).