3x+4x-10-20=180
7x-30=180
7x=210
x=30
Answer:
Step-by-step explanation:
we know that
The volume of a pyramid is equal to
where
B is the area of the base of the pyramid
h is the height of the pyramid
Find the area of the base B
we have
substitute the values
Answer:
d=-9
Step-by-step explanation:
you simplify both side of the equation
d/3-9=-12
1/3d+-9=-12
add 9 both sides
1/3d-9+9=-12+9
1/3d=-3
then you multiply 3 both sides
3 x (1/3d)=(3) x(-3)
d=-9
Hopes this helps :)
Answer:
<h2>
</h2>
Step-by-step explanation:
To find g-¹( 2) we must first find g-¹(x)
To find g-¹(x) equate g(x) to y
That's
y = g(x)
We have
y = - 2x + 7
Now interchange the terms that's x becomes y and y becomes x
We have
x = - 2y + 7
Make y the subject in order to find g-¹(x)
Move 7 to the left side of the equation
- 2y = x - 7
Multiply both sides by - 1
We have
2y = 7 - x
Divide both sides by 2 to make y stand alone
That's
<h3>
</h3>
So we have
<h3>
</h3>
Now to find g-¹(- 2) substitute the value of x that's - 2 into the expression
We have
<h3>
</h3>
We have the final answer as
<h3>
</h3>
Hope this helps you