modpheairt
Calculators
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
Qna
Math
modpheairt
modpheairt
Home
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
Qna
Math
MATH SOLVE
Home
Factor –8x3 – 2x2 – 12x – 3 by grouping. What is the resulting expression?(2x2 – 3)(4x + 1)(–2x2 – 3)(–4x + 1)(2x2 – 3)(–4x + 1)(–2x2 – 3)(4x + 1)
General
4 months ago
Help please?!Lamont wants to determine his typical sprint time to run 100 meters. Which of the following methods will give him the most accurate measurement? A. Sprint the 100 meters several times throughout an hour and determine his average time to complete from the various runs. B. Sprint the 100 meters several times throughout the day and determine his fastest time from the various runs. C. Sprint the 100 meters several times throughout the week and determine his average time to complete from the various runs. D. Sprint the 100 meters several times throughout the month and determine his fastest time from the various runs.An electric company wants to determine the typical amount of energy usage for a 30-home neighborhood each month in the past year. Which of the following would give the company the most accurate measurement? A. Take the energy usage for one of the homes in the neighborhood for a year, and then multiply it by 30. B. Take the energy usage for all the homes in the neighborhood for a year, and then divide it by 12. C. Take the energy usage for three random homes in the neighborhood for the year, and then multiply it by 10. D. Take the energy usage for all the homes in the neighborhood for the year, and then divide it by 30.
General
4 months ago
Help please with algebra problem
General
4 months ago
Suppose that y varies directly as x, and that y = 12 when x = 3. When x = 10, y =
General
4 months ago
Please help, I can't figure this one out. It my last question for my homework and I'm stuck.
General
4 months ago
Equation 1:Ax+By=C Equation 2:Dx+Ey=F A, B, C, D, E, and F are non-zero real numbers. Which of the following could replace equation 1 and still have the same solution? Select all that apply.A. A multiple of Equation 1.B. The sum of Equation 1 and Equation 2C. An equation that replaces only the coefficient of x with the sum of the coefficients of x in Equation 1 and Equation 2.D. An equation that replaces only the coefficient of y with the sum of the coefficients of y in Equation 1 and Equation 2.E. The sum of a multiple of Equation 1 and Equation 2.
General
4 months ago
Which function represents the exponential function f(x)=3x after a vertical stretch by a factor of 8 and a reflection across the x-axis? A) g(x) =3-8xB) g(x) =-3 8xC) g(x) =8·3-xD) g(x) =-8·3x
General
4 months ago
The formula s= SA/6 squared gives the length of the side, s, of a cube with a surface area, SA. How much longer is the side of a cube with a surface area of 1,200 square inches than a cube with the surface area of 768 square inches?
General
4 months ago
Carolyn is making a quilt using blocks like the one shown below. All the shaded squares are the same size and all th shaded triangles are the same size. What is the total area of all the shaded pieces of the quilt block?
General
4 months ago
Gina wrote the following paragraph to prove that the segment joining the midpoints of two sides of a triangle is parallel to the third side: Given: ΔABC Prove: The midsegment between sides Line segment AB and Line segment BC is parallel to side Line segment AC. Draw ΔABC on the coordinate plane with point A at the origin (0, 0). Let point B have the ordered pair (x1, y1) and locate point C on the x-axis at (x2, 0). Point D is the midpoint of Line segment AB with coordinates at Ordered pair the quantity 0 plus x sub 1, divided by 2. The quantity 0 plus y sub 1, divided by 2 by the Midpoint Formula. Point E is the midpoint of Line segment BC with coordinates of Ordered pair the quantity x sub 1 plus x sub 2, divided by 2. The quantity 0 plus y sub 1, divided by 2 by the Midpoint Formula. The slope of Line segment DE is found to be 0 through the application of the slope formula: The difference of y sub 2 and y sub 1, divided by the difference of x sub 2 and x sub 1 is equal to the difference of the quantity 0 plus y sub 1, divided by 2, and the quantity 0 plus y sub 1, divided by 2, divided by the difference of the quantity x sub 1 plus x sub 2, divided by 2 and the quantity 0 plus x sub 1, divided by 2 is equal to 0 divided by the quantity x sub 2 divided by 2 is equal to 0 When the slope formula is applied to Line segment AC the difference between y sub 2 and y sub 1, divided by the difference of x sub 2 and x sub 1 is equal to the difference of 0 and 0, divided by the difference of x sub 2 and 0 is equal to 0 divided by x sub 2 is equal to 0, its slope is also 0. Since the slope of Line segment DE and Line segment AC are identical, Line segment DE and Line segment AC are parallel by the Parallel Postulate. Which statement corrects the flaw in Gina's proof? The coordinates of D and E were found using the slope formula. Segments DE and AC are parallel by definition of parallel lines. The coordinates of D and E were found using the Distance between Two Points Postulate The slope of segments DE and AC is not 0.
General
4 months ago
Mrs McDonald used 4 1/4 gallons of water to water her flowers .if she used 1/4 of the water on her flowers daisies , how many gallons of water did she use on the daisies?
General
4 months ago
A bathtub can hold 80 gallons of water. The faucet flows at a rate of 4 gallons per minute. What percentage of the tub will be filled after 6 minutes.
General
4 months ago
What is the length of z ?
General
4 months ago
Huey works 175 hours each month and earns $14.25 per hour after taxes. His monthly budget is shown. How much money is left over in his budget for unplanned expenses?
General
4 months ago
A rectangular plot of land measures 120 feet by 96 feet. Which dimensions could not represent the plot on a scale drawing?Options:A- 8 inches by 6 inchesB- 20 inches by 16 inchesC- 15 inches by 12 inchesD- 5 inches by 4 inches
General
4 months ago
The sale price of these items in a store is 85% of its usual price. A The usual price of a sweatshirt is $18, what is its sale price. B the usual price of a soccer ball is $24.80, what is its sale price. please answer both if you can.
General
4 months ago
Find the midpoint of side EF. Figure EFGH is shown. E is at negative 2, 3. F is at 1, 6. G is at 4, 3. H is at 1, 0. (−1, 4) (−0.75, 4.25) (−0.5, 4.5) (−0.25, 4.75)
General
4 months ago
A piece of solid, spherical glass has a circumference of 18.84 centimeters. The sphere is cut in half, creating two identical hemispheres. Using 3.14 for π, Tran computes the amount of paint needed to cover the sphere. Which statement about the amount of paint found by Tran is true?Tran found the minimum amount of paint needed to cover the curved surface of a hemisphereTran found the minimum amount of paint needed to cover the entire surface of one of the hemispheres.Tran found the minimum amount of paint needed to cover both hemispheres.Tran found the minimum amount of paint needed to cover the bases of both hemispheres.
General
4 months ago
A scientist finds that on one side of a mountain 35 cacti have purple flowers and 16 have white flowers. If he goes to the other side of the mountain, what is the experimental probability that the first cactus he comes across has white flowers?
General
4 months ago
Marvin lives in Stormwind City and works as an engineer in the city of Ironforge. In the morning, he has 333 transportation options (teleport, ride a dragon, or walk) to work, and in the evening he has the same 333 choices for his trip home. If Marvin randomly chooses his method of travel in the morning and in the evening, what is the probability that he teleports at least once per day?
General
4 months ago
Previous
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Next