Answer:
2x+4
Step-by-step explanation:
Answer:
4 + 5i
Step-by-step explanation:
To calculate this you have to combine the like terms until they cannot be combined any further:
7 + 10i + 4 - 10i - (7 - 5i)
11 + 0i - 7 - 5i
7 & 4 are liked terms so add them together + subtract 10i and 10i
4 + 5i <--- Final answer
Hope this helps!
Answer:
18
Step-by-step explanation:
Do you see a pattern? Each time it decreased by 3. 33-3=30, 30-3=27, the pattern goes on, just do the same with the last shown number. 21-3=18
Answer:

Step-by-step explanation:
We have two congruent right triangles and three rectangles.
First, calculate the length of the hypotenuse using the Pythagorean theorem:

We have

Substitute:

The formula of an area of a right triangle:

Substitute:

The formula of an area of a rectangle:

w - width
l - length
Rectangle 1:
w = 15, l = 22

Rectangle 2:
w = 17, l = 22

Rectangle 3:
w = 8, l = 22

The Surface Area of the triangular prism:

Substitute:

Answer:
C = 3.14... x d
Step-by-step explanation:
To calculate the circumference do pie times the diameter of the circle