01/24/24

I need help on solving for the zeros from a quadratic equation with really big numbers
Here is my equation R = (2400 - 80x)(8 + 0.5x)I need to solve for the zeros.I tried using the formula but when I tried to square root it it gave me an undefined number. I'm not sure what to do.
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01/24/24

Consider the following probability.

Consider the following probability.P(−1.24 ≤ z ≤ 2.73)Let z be a random variable with a standard normal distribution. Find the indicated probability. (Round your answer to four decimal... more
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01/24/24

Answer the following.

Suppose the heights of 18-year-old men are approximately normally distributed, with mean 67 inches and standard deviation 6 inches.(a)What is the probability that an 18-year-old man selected at... more
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01/24/24

(-2,-2) and (0,0)
Write the slope-intercept form of the equation of the line through the given points.
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01/24/24

How to determine the length of a line given its endpoints?
My line has the endpoints (0,0) and (-7, 6). I graphed it so I know it is a line. However, when I went to plug it into the distance formula, the answer on my calculator was undefined. I'm not sure... more
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01/24/24

General equations as functions (proportional, inverse, or linear)
Identify each of the following general equations as functions that are: proportional, inverse, or linear In the following functions "x" and "y" are variables (x is the independent variable; y is... more
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01/24/24

write the equation of the line in slope-intercept form that is perpendicular to the graph of 3x+y=5 and goes through the point (-9,3)
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01/24/24

write the equation of the line in slope-intercept form that is parallel to the graph of 2x-3y=5 and goes through the point (-3,4)
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01/24/24

write the equation of the line in slope-intercept form that is perpendicular to the graph of x-6y=-2 and goes through the point (0,-5)
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01/24/24

write the equation of the line in slope-intercept form that is perpendicular to the graph of y=-2x+1 and goes through the point (2,-1)
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01/24/24

Volumes of cylinders and composite objects
a. This cake is made of three cakes, each 15 cm high, and with diameters 20 cm, 30 cm and 40 cm. Calculate the total volume of the cake.b. How many litres of liquid concrete were used to make this... more
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01/24/24

Volume and surface area
a. The length of each edge of a cube is 5 cm. Calculate its surface area and its volumeb. If the length of each edge triples to 15 cm, by what factors do its surface area and its volume increase?
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01/24/24

Particle Motion from Equation
A particle moves along the x-axis so that at time t≥0 its position is given by x(t)=t^5−5t^4. Determine all intervals when the acceleration of the particle is negative.
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01/24/24

Related Rates (Two Formulas)
The volume of a sphere is increasing at a constant rate of 198 cubic feet per second. At the instant when the volume of the sphere is 18 cubic feet, what is the rate of change of the surface area... more
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01/24/24

The cable is 245.9 feet long and connects to the road at a point 200.7 feet away from the center of the bridge tower. how tall is the tower?
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01/24/24

Let U = {1, 2, 3, 4, 5, 6, 7}, A = {2, 4, 6}, B = {1, 2, 3, 5, 7}, and C = {1, 3, 6, 7}. Find (A B)’
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01/24/24

What are the equivalent expressions of -15+6x
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01/23/24

Making sense of algebra
Simplify (3125x3125)1/5
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01/23/24

A woman walks due west on the deck of a ship at 3 mi/h.

A woman walks due west on the deck of a ship at 3 mi/h. The ship is moving north at a speed of 24 mi/h. Find the speed and direction of the woman relative to the surface of the water. (Round your... more
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01/23/24

The sum of 2 and c is less than 29
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01/23/24

Areas of rectangles, squares and triangles
a. A triangle has a base of 14 m and an area of 39.2 m2 . What is the perpendicular height from the given base? b. A rectangle with area 1512.5 cm2 is twice as long as it is wide. Find its length.
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01/23/24

Areas of composite shapes - Subtract areas
The side of a square piece of cloth is 2 m long. How much cloth will remain after a parallelogram of base length 1.75 m and height 1.2 m has been cut from the cloth?
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01/23/24

Problems with perimeter
A farm has three boundary lines. Three farm workers each measured a different boundary. John found one boundary measured 1.72 km, Kim noted that her assigned boundary is 2 km 55 m long and Ali... more
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01/23/24

Problems with perimeter
A quadrilateral has an area of 100 cm2 . What is the minimum perimeter this shape could have? Explain your reasoning.
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01/23/24

Express the ratios in simplest form
Express the following ratios in simplest form.1. 6 :15 =2. 22:67=3. 25:55 =4. 45:165=5. 33/54 =
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