Answer:
Step-by-step expla
B) y-intercept (0, 2)
Eliminate
C) x-intercept (-3, 0)
D) x-intercept (-1, 0)
Answer:
B
Step-by-step explanation:
x-intercepts:
factor the function
f(x)=(x+3)(x+1)
zeros at x=-3,-1
x-intercepts --> (-3,0),(-1,0)
y-intercepts:
set x=0 in f(x)
f(0)=(0)^2+4(0)+3=3
y-intercept --> (0,3)
find minimums and maximums
The max or min of a quadratic function occurs at x=-b/(2a). If a is negative, the max value of the function is f(-b/(2a)). if a is positive, the minimum value of the function is f(-b/(2a)).
f(x)=ax^2+bx+c
f(x)=x^2+4x+3
here a is positive so you are looking for a minimum,
x=-b/(2a)
x=-4/(2*1)
x=-2 ----> plug into f(x), f(-2)=(-2)^2+4(-2)+3=-1
Answer:B
Step-by-step explanation:
4(a + 3) = 18 – 2(3 – 2a)
–3
–1
all real numbers
no solution
Question 9
Kersha has two jobs. During the day she works as an office clerk, and in the evening she works as a cashier. Her office job pays her $12.00 per hour. Her cashier job pays her $8.25 per hour. In one week, Kersha worked 55 hours. She earned a total of $585.
How many hours did Kersha work in each job?
Office clerk: 35 hours; cashier: 20 hours
Office clerk: 20 hours; cashier: 35 hours
Office clerk: 31 hours; cashier: 24 hours
Office clerk: 28 hours; cashier: 27 hours
Sandy's pitchers can hold a total of 320 ounces of lemonade. This is calculated by multiplying the number of pitchers by the ounces each can hold, and then adding the totals for each group of pitchers.
To find the total amount of lemonade Sandy's pitchers can hold, you first need to calculate how much each group of pitchers can hold. Two pitchers can hold 64 ounces each, so for these two pitchers, the calculation is 2 pitchers * 64 ounces/pitcher = 128 ounces.
Similarly, four pitchers can hold 48 ounces each. So, for these four pitchers, the calculation is 4 pitchers * 48 ounces/pitcher = 192 ounces.
Finally, to find the total amount of ounces all pitchers can hold, you add the totals from each group of pitchers. The calculation is 128 ounces + 192 ounces = 320 ounces. Therefore, Sandy's pitchers can hold a total of 320 ounces of lemonade.
#SPJ2
Answer:
Ken has 1 of his money. He spends 1/5 so he still has 4/5 of the original amount of money. He has 4/5 and he spends $21and ends up with 1/2 of his money. 4/5 = 8/10 and 1/2 = 5/10.This means that $21 is 8/10-5/10 of his original amount of money. so $21 is 3/10 of his original amount of money. 21/3*10=70. His original amount of money is $70. This means that 1/2 of his money is $35. So Ken has $35 left.
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Step-by-step explanation: