What is the vertex of the quadratic function below?y = 2x2 - 4x+1
O A. (-1,-1)
O B. (1,-2)
O C. (1,-1)
O D. (2,1)

Answers

Answer 1

Answer:

Answer:D

Step-by-step explanation:

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How are the values of the two 4s related in .044

Answers

They are realated because you need 4 40s to make 40

they are both behind the decimal point

Please helpppppp!!!!

Answers

Answer:

A. -34.5>x

Step-by-step explanation:

The area is shaded below -34.5, so we know that x has to be less

Megan has already saved $18 and she earns $4 per hour working four hours on each Saturday and 3 hours on each Sunday. Rhoni has already saved $22 and she earns $3 per hour and works 6 hours each week. If they combine their money, in how many weeks will they be able to afford a $316 stereo?

Answers

In one week Megan makes 28 dollars
In one week Rhoni makes 18 dollars
Combined per week they make 46 dollars
you do 316/46
Which equals 6.86956521739
Basically in 7 weeks they can buy the stereo

Abbigail brought 47 bags of candy for the party. Each bag contained 21 pieces of candy. If there are 500 people at the party, does she have enough to give everybody 2 pieces of candy?

Answers

Answer:

Step-by-step explanation:

because you multiply 21 times 47 =987 and there is 500 people if Abbigali wants to give ereyone 2 he has to have 1,000

Answer: no

Step-by-step explanation:

47 bgs tims 21 in each bag gives

47 x 21 = 987 candies in all

if there are 500 people then lets divide the number of candies by the number of people to see how much each person gets

so 987/500 = 1.97

so NO there would not be enough candies for each person to get 2

as you see each person will get 1.97

Just rationalize and simplify

Answers

$\mathsf{Given :\;\;(√(a + 1) - 2)/(√(a + 1) + 2)}$

$\mathsf{Multiplying\;Numerator\;and\;Denominator\;with\;√(a + 1) - 2,\;We\;get :}$

$\mathsf{\implies ((√(a + 1) - 2)(√(a + 1) - 2))/((√(a + 1) + 2)(√(a + 1) - 2))}}$

$\mathsf{\implies ((√(a + 1) - 2)^2)/((√(a + 1))^2 - (2)^2)}}$

$\mathsf{\implies ((√(a + 1))^2 + (2)^2 - 2(√(a + 1))(2))/(a + 1 - 4)}}$

$\mathsf{\implies (a + 1 + 4 - 4√(a + 1))/(a + 1 - 4)}}$

$\mathsf{\implies (a + 5 - 4√(a + 1))/(a - 3)}}$

Answer:

(a+5)-4√(a+1) /(a-3)

Step-by-step explanation:

√(a+1) - 2 / √(a+1) + 2

={√(a+1) - 2 }{√{(a+1) - 2 } / {√(a+1) + 2} {√(a+1) - 2 }

={√(a+1) - 2 }² / {√(a+1)}² - 2²

=[ {√(a+1)}² -4√(a+1) +4 ] / a+1-4

=[a+1-4√(a+1)+4] / (a-3)

=(a+5)-4√(a+1) /(a-3)

Elevii clasei a IV-a au fost la patinoar. Stiind ca numarul baietilor reprezinta jumatate plus 3 din numarul copiilor si ca numarul fetelor este 10, afla cati copii au fost la patinoar.