Answer:
i
(or no solution if you haven't learned about imaginary numbers yet)
Step-by-step explanation:
The first thing you want to do is isolate x, or get x alone.
7x²+46=32
=> 7x²+46-46=32-46
=>7x²=-14
=>7x²÷7=-14÷7
=>x²=-2
If you have learned about imaginary numbers read on. If not, you have to realize that squaring any number can't result in a negative number. This means that there is no solution.
If you have learned about imaginary numbers, read on.
Now that you have x^2=-2, you can take the square root of both sides.
x=
Using a property about square roots (I don't know what it's called)
the equation becomes:
x=
And since 
=i, you can substitute in this value in to get x=i.
There’s no photo attached or anything
Answer:
1) 2.6 ft³
Step-by-step explanation:
for the first one, multiply height times width times depth divided by two, since it is a triangle. Area of a triangle is always height times width divided by two.
So
(1.3 × 1 × 4)/2 = 2.6 ft³
The second one you can see as 6 of those triangle bars glued together, can you calculate the volume then?
Answer:
h=16/15 or 1 1/15
Step-by-step explanation:
4/5 +3/2h = 4/3 +h
-4/3 -4/3
4/5-4/3 +3/2h = h
-3/2h -3/2h
4/5-4/3 =h-3/2h
convert to same denominators (left side):
12/15-20/15 = h-3/2h
-8/15 = -5/2h
h=16/15
