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What are the solutions of 2x2 + 3x= −8? (6 points) Select one: a. the quantity negative 3 plus or minus i square root of 41 all over 4 b. the quantity negative 3 plus or minus i square root of 55 all over 4 c. the quantity negative 3 plus or minus i square root of 21 all over 4 d. the quantity negative 3 plus or minus i square root of 15 all over 4

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general 11 months ago 4748

A red car is traveling at 55 mph. A blue car is traveling at 65 mph. The cars are 305 miles apart. The cars started at the same spot at different times. The total driving time for the two cars is 5 hours. Which system of equations could be used to solve for the total driving time of the red car (r) and the total driving time of the blue car (b)?algebra 1

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general 11 months ago 3865

The cooler at a picnic contained 4 apple juice boxes, 8 orange juice boxes, and 6 fruit punch juice boxes. A juice box is selected at random. What is the probability of the complement of choosing an orange juice box?1/184/95/917/18

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general 11 months ago 7191

A. f(x) = x2 – 11x – 12 B. f(x) = x2 – 4x –12 C. f(x) = x2 + x – 12 D. f(x) = x2 – x – 12 Match each quadratic function given in factored form with its equivalent standard form listed on the left. f(x) = (x + 2)(x – 6) f(x) = (x – 4)(x + 3) f(x) = (x – 12)(x + 1) f(x) = (x – 3)(x + 4

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general 11 months ago 8370

Use the formula a2 – b2 = (a + b)(a – b) to factor completely. What are the factors of 36x8 – 49?A. (9x4 – 1)(4x2 + 49)B. (36x4 – 7)(x2 + 7)C. (6x4 – 7)(6x4 + 7D. (6x8 – 7)(6x + 7)

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general 11 months ago 6726

SAT scores are normally distributed, with a mean of 500 points and a standard deviation of 100 points. Suppose you take the SAT. Several weeks later, you receive your results, which show that you reached the 95th percentile for the math portion. Recalling that SAT scores are always expressed as multiples of 10, how many points did you get on the test? A. 165 B. 590 C. 690 D. 630 E. 670

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general 11 months ago 3552

A set of data has a normal distribution with a mean of 50 and a standard deviation of 8. What percent of the data should fall between 42 and 58?

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general 11 months ago 6056

A playground is shaped like a rectangle with a width 5 times it’s length. What is the simplified expression for the distance between opposite corners of the playground?

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general 11 months ago 4402

Tia bought a sweater that was discounted for 20% of the original price. She saved $4.60 with the discount. What was the original price of the sweater?

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general 11 months ago 8466

It costs a flat fee of $3.15 to make an international call plus $0.05 for every minute that you talk. If you were charged $5.10 for making an international call, for how many minutes did you talk? minutes

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general 11 months ago 2475

Please help. I don't understand where to start with this one. If the slope of a strictly decreasing function at the point (a, b) is –4, what is the slope of the inverse of the function at the point (b, a)? a. -1/4 b. –4 c. –1 d. The slope cannot be determined without knowing the equation of the function.

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general 11 months ago 7149

Which of the following is the graph of ƒ (x ) = x 2?Click on the graph until the correct graph appears.

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general 11 months ago 4954

Which set of values could be from a direct proportion?

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general 11 months ago 7432

Which absolute value function has a graph that is wider than the parent function, f(x) = |x|, and is translated to the right 2 units?Which absolute value function has a graph that is wider than the parent function, f(x) = |x|, and is translated to the right 2 units?f(x) = 1.3|x| – 2f(x) = 3|x – 2|f(x) = 3/4 |x – 2|f(x) = 4/3 |x| + 2

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general 11 months ago 5066

student purchased 7 binders for a total of $8.61. Write or type an equation that can be used to find the cost of each binder, n , in dollars. What is the cost in dollars, of each binder?

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general 11 months ago 5977

Amos, peter, and Carlos begin running around a circular track the same time, from the same start line. It takes Amos 12 minutes to complete the lap around the track. It takes peter 9 minutes, and it takes Carlos 8 minutes to complete 1 lap around the track. If the three boys continue running around the track their same rate of speed, in how many mi utes will the three boys pass one another?

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general 11 months ago 5724

Two students are selected, without replacement from a group of 8 male and 5 female students. what is the probability exactly one female is selected?

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general 11 months ago 3826

I KNOW IT'S LATE, BUT PLEASE HELP.Sam is building an enclosure with recycled cardboard for his collection of model cars. His design is as shown below:What is the length of side A F in inches?a. 12b. 24c. 30d. 42

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general 11 months ago 9996

What is the measure of an exterior angle in a regular polygon with 15 sides?

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general 11 months ago 7502

Instructions:Select the correct answer from each drop-down menu.The equation of the graphed line in slope-point form using the point (2, -1) is a) [tex]y+1=4x-8[/tex]b) [tex]y+1= \frac{1}{4}(x-2)[/tex]and its equation in slope-intercept form is _a) [tex]y= \frac{x}{4}- \frac{3}{2} [/tex]b) [tex]4y=x-6[/tex]

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general 11 months ago 7190