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A student was asked to use grouping to solve 3x^2+5x−2=0. Select the step where the student first made an error. Given: 3x^2+5x−2=0 Step 1: I need two numbers that multiply to -6 and add to 5. The numbers are -1 and 6. S...
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A student was asked to solve 8x^2−28x=0 by factoring out the GCF. At what step did the student first make an error? Given: 8x^2−28x=0 Step 1: 4x(2x−7)=0 Step 2: 4x=0 and 2x−7=0 Step 3: x=0 and x=14 (1 point) Step 1 Step...
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Solve x^2−25=0 using square roots.(1 point) x=5 and x=−5 x=1 and x=−25 x=−1 and x=25
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Solve by inspection. Which two are solutions for 2x^2−2x−12=0 ?(2 points) x=−2 x=−12 x=3 x=2
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A volleyball is served from a height of 6 feet with an initial velocity of 41 feet per second. The situation is modeled using the equation h=−16t^2+41t+6 , where h is the height of the ball in feet at t seconds. Which of...
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A football is kicked from ground level at an initial upward velocity of 90 feet per second. The equation h=−16t2+90t gives the height h of the football after t seconds. Using the equation, what is the domain when the max...
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ydney bought a new car for $43,000. If the car depreciates in value by 10% each year, the situation can be modeled by the function f(x)=43,000(0.90)^x. Complete the table to find the value of the car after three years. x...
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Bacteria is known to grow exponentially. The function B(h)=82(1.25)^h represents the number of bacteria, B(h), as a function of hours, h. How many bacteria will there be at 7.5 hours to the nearest whole bacteria? (1 poi...
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A scientist is observing a particular species of bacteria growing in a petri dish. The number of bacteria can be represented by the function n(t)=50(1.2)t , where n is the number of bacteria after t hours. When graphing...
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Tyler went to the park to work out. Here is his routinge: He started with a slow jog at a constant rate for five minutes. He then increased his speed to a faster, constant pace for seven minutes. He took a three-minute b...
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Tyler went to the park to work out. Here is his routinge: He started with a slow jog at a constant rate for five minutes. He then increased his speed to a faster, constant pace for seven minutes. He took a three-minute b...
1 answer
Evaluate the piecewise function for the given values. f (x) = 2x - 3, when x ≤ -2 f (x) = -3x, when -2 < x < 4 f (x) = x/6 - 1, when x ≥ 4 (3 points) f(6) = f(-6) = f(3) =
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A city's water company charges a fee of $50 a month in addition to $0.25 per every gallon used. The total cost per month for water services c is represented by the function c=0.25g+50 , where g is the number of gallons u...
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Match the function with its name. Not all answer options will be used. (1 point) exponential function linear function quadratic function f (x) = ax^7 + bx f (x) = ab^x f (x) = mx + b f (x) = x^5 + b f(x) = ax^2 + bx + c
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Find the range of the function using the given domain. f(x)=3x+2 Domain: {-1,0,1} (1 point) {-3, 0, 3} {-1, 2, 5} {-2, 1, 4} {1, 3, 5}
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The drama club is having a bake sale selling cupcakes to raise money. They spend $32 on supplies and sell each cupcake for $5. Let n represent the number of cupcakes they sell and m represent the money earned. If the dra...
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The drama club is having a bake sale selling cupcakes to raise money. They spend $32 on supplies and sell each cupcake for $5. Let n represent the number of cupcakes they sell and m represent the money earned. Which equa...
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The drama club is having a bake sale selling cupcakes to raise money. They spend $32 on supplies and sell each cupcake for $5. Let n represent the number of cupcakes they sell and m represent the money earned. Which vari...
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What is f(−4) for the function f(x)=2x+6? show all steps
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What does repetition accomplish in a presentation? Select the two correct answers.(1 point) It restates the main idea. It emphasizes certain ideas. It holds the audience’s attention. It makes sure the audience understand...
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What are the elements of delivery style? Select the three correct answers.(2 points) argument pace question gesture tone repetition
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Which statement is the most clear and concise?(1 point) Teaching computer literacy to kids is important because many future careers will require computer use, and because computers can be fun and engaging learning tools....
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What is a presentation type?(1 point) the form in which information is presented to an audience the reason why a presentation is given the importance or seriousness of information the structure of main ideas and supporti...
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Which of the following is true about gross income? Select all that apply. (1 point) It is a person’s income before taxes and deductions. It is a person’s income after taxes and deductions. It is a person’s combined incom...
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Matthew is a non-exempt worker. Which of the following does he have the right to earn? (1 point) commission overtime pension salary
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