What is the value of y? 13y+48=8y-47
y=-19
Add: (4x3-2x2+1) + (7x2+12x)
=4x3+5x2+12x+1
What is the cosine of 120 degrees?
What is -1/2.
(12x+7)/9 + 14x/9
= (26x+7)/9
If the formula for the volume of a cone is v=πr2h/3, what is the volume of a cone if the radius is 3 cm, and the height is 4 cm?
=37.7
Solve and graph: 2x+4>36
x>16
Subtract: (4z6-3z2+2z) - (-10z6+7z2-8)
=14z6-10z2+2z+8
What is the radian of 60 degrees?
(pi)π/3
Multiply: ((5r2-25r)/3r) ((3r)/30r2-5r)
(r-5)/(6r-1)
Using the Pythagorean theorem if one leg measures 5cm and the other leg measures 12 cm what is the hypotenuse?
=13 ft
What is the value of x? 3|x-5|=12
x=9, x=1
Multiply: 12y(3y4-7y2+1)
= 36y5-84y3+12y
Find the approximate value and round to the 2nd decimal place of Sin 77.
=0.97
Multiply: ((x+1)/3) ((x+3)/3)
= ((x+1)(x+3))/9
Using the formula for the volume of a cylinder is v=πr2h if the diameter is 16 cm and the height is 15cm what is the volume of the cylinder?
=3015.93
Solve: -2(x+3) <_ 54
= x>_ -30
Multiply: (x2+x-2)(3x2-8x-7)
= 3x4-5x3-21x2+9x+14
Draw 315 degrees and find the exact value for the cosine and sine. Round to the nearest tenth.
Sine value: -0.7
Cosine value: 0.7
(x2+8x+15)/9x divided by (x2+6x+5)/9x
= (x+3)/(x+1)
What does every angle measure in an equilateral triangle?
60 degrees
The high school band is expecting to take at least 120 students to a regional band competition. The school rents some passenger vans that can transport 8 students. Other students, in groups of 4, will need to ride in personal vehicles driven by parents. Write an inequality that shows all the possible combinations of vans and cars that could be used to drive students to the competition.
= 8x+4y >_ 120
Divide: (12x3y7-9x2y3+3xy2) / (-3xy2)
= -4x2y5+3xy-1
Draw 225 degrees and find the exact value for the cosine and sine, and find the radian of 225 degrees.
Sine value: -0.7
Cosine value: -0.7
Radian: 5π/4
(5x2+x)/x2-1 divided by (10x2+2x)/(4x2+x-5)
= (4x+5)/2(x+1)
Using the Pythagorean theorem if the hypotenuse is 13 ft and the adjacent leg equals 12 ft what is the remaining leg?
=5ft