Answer: $1.75
Step-by-step explanation:
Assume hamburgers are x and French fries are y.
Use a simultaneous equation to solve;
2x + y = 4.75
3x + 3y = 9.00
Using substitution;
2x + y = 4.75
y = 4.75 - 2x
Solving it;
3x + 3y = 9
3x + 3 * (4.75 - 2x) = 9
3x + 14.25 - 6x = 9
-3x = 9 - 14.25
-3x = -5.25
x= -5.25/-3
x = 1.75
y = 4.75 - 2x
= 4.75 - 2 * 1.75
= 1.25
Hamburgers are x so they cost $1.75 each.
Csc (pi/2) or the cosecant of (pi/2) can be obtained by using a calculator.
In terms of degrees, pi/2 is equivalent to 90 degrees. Cosecant is also the reciprocal of sine. Since sin 90 is equal to 1, obtaining the reciprocal of 1 should yield csc (pi/2). Since the reciprocal is simply equal to 1, then:
<span>csc (pi/2) = 1</span>
Answer:
x= 4 inches
Step-by-step explanation:
<u>Surface Area Of A Square Pyramid
</u>
It can be computed by adding the area of the base plus 4 times the area of the sides. The area of the base (a square) is
The area of each lateral side (a triangle) is
The total area of the pyramid is
It must be equal to 84, so
Solving for x
Answer:
Step-by-step explanation:
All triangles have 180 degrees when the 3 angles are added together.
The angles are x , 33, and the small square is 90
So you have x + 33 + 90 = 180 Combine
x + 123 = 180 Subtract 123 from both sides.
x = 180 - 123
x = 57