Answer:
-14
cuz sqrt of -16 is -4 and sqrt of -64 is -8 but there is an - sign there so it is positive
then 3+-4 is -1 and 6+8 is 14
lastly multiply and you get negative 14
Answer:
Step-by-step explanation:
The formula of an area of a parallelogram:
b - base
h - height
We have:
base₁ = 9.8 in
base₂ = 10 in
height₁ = 5.6 in
height₂ = h
The area of a parallelogram:
and 
Therefore we have the equation:
Substitute:
<em>divide both sides by 10</em>
Answer:
33.75 or rounded to the nearest tenth: 33.8
Using factorization method;
x²+13x+40=0
x²+13+40
Find two numbers that you can add together to give the co-efficient of variable x. (I.e 13 for this question). Also, you'll find two numbers that you can multiply with each other to give you the whole number as an answer. (I.e 40 in this question). The two numbers must be the same (i.e the two numbers that will be added to give the co-efficient of x and the two numbers that will be multiplied to give the whole number must be the same two).
The two numbers are +5 and +8
The equation will therefore be = x²+5x+8x+40
You'll then factorize (I.e use a common factor of both values to bracket them)
x(x+5)+8(x+5)
(x+8)(x+5)
x is therefore (x+8=0) or (x+5=0)
x=(x=0-8) or (x=0-5)
x= -8 or x= -5
1.5 is the answer for the question <span />
