Please help me on #37. I know for A you would use the quadratic equation but I got the wrong answer.
Please help me on #37. I know for A you - 1

Answers

Answer 1
Answer: Δ = (8i)^2 - 4*(-25) => Δ = -36 +100 => Δ = 64 => x1 =(-8i + 8)/2 => x1 = -4i +4;
x2 = (-8i - 8)/2 => x2 = -4i-4; in this case, your solutions are complex conjugates.

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Teresa recorded the number of drinks of each type that she sold on Monday and Tuesday. She sold 300 drinks each day.Which drink represents of the sales for the day? Two two-column tables titled Drinks Sold on Monday and Drinks Sold on Tuesday. In the Monday table, data are Orange juice 150, Grape juice 34, Water 100, Apple juice 16. In the Tuesday table, data are Orange juice 50, Grape juice 65, Water 85, Apple juice 100. A. Orange juice sold on Monday B. Orange juice sold on Tuesday C. Water sold on Monday D. Grape juice sold on Tuesday
Please look at photo and solve for y

Could someone help me understand how to solve questions like these? Thank you!

Answers

Answer:

  y=-(1)/(4)x+(5)/(4)

Step-by-step explanation:

You solve a question like this by finding the slope and intercept of the desired line and putting those values into the answer form.

__

The relationship between slopes of perpendicular lines is that one is the negative reciprocal of the other.

The slope-intercept form of the equation for a line is ...

   y = mx + b . . . . . . where m is the slope and b is the y-intercept

The given line is in "slope-intercept form," so you can identify the slope as 4 and the y-intercept as 6. (For this question, the y-intercept of the given line is irrelevant.)

Using the relationship between slopes of perpendicular lines, you now know the slope of the line you want is m = -1/(slope of given line) = -1/4. This is the coefficient of x in the slope-intercept form, so fills the blanks on the left.

To make the line go through the point (1, 1), you need to choose a y-intercept that makes (x, y) = (1, 1) a solution to the equation. For a y-intercept of "b", that means ...

  y = -1/4x + b

  1 = -1/4·1 + b . . . . . . . . fill in the values of x and y at the given point

  1 + 1/4 = b = 5/4 . . . . . add 1/4 to both sides of the equation

Now you know the equation you want is ...

  y=-(1)/(4)x+(5)/(4)

WHAT IS THE GREEN BLANK???






PLEASE HELP ME ASAPPPP

Answers

Answer:

23

Step-by-step explanation:

Answer:

23

Step-by-step explanation:

N = number of nickels

D = number of dimes

N + D is the total number of coins which we are told is 23

The number in the green box is 23.

To figure this out, fill in the blanks and do the math:x _____ seconds in a minute
x _____ minutes in an hour
x _____ hours in a day
x _____ days in a year
x __________ miles per second (speed of light) =
______________ miles in one light-year.

Answers

1 is 60. 2 is 60. 3 is 24. 4 is 365.25. 5 Is 186282. 6 is 5879000000000 or 5.879 X 10^12.

What is the sum of the first five terms of the geometric sequence in which a1=5 and r=1/5?

Answers

Sum of series of G.P. = Sn = a(1-rⁿ) / 1-r
Here, a = 5
r = 1/5

Substitute their values into the expression:
Sn = 5(1-1/5⁵) / 1 - 1/5
Sn = 5*5/4 [1-1/3125]
Sn = 25/4 [ 3124/3125]
Sn = 781 / 125

In short, Your Answer would be 781/125 in fraction form 
or 6.248 in decimal form

Hope this helps!

At a dental office, the probability a patient needs a cleaning is 0.89. The probability a patientneeds a filling is 0.44. Assuming the events "needs a cleaning" and "needs a filling" are
independent, then what is the probability a patient needs a filling given that he/she needs a cleaning?
A. 0.83
B. Additional information is required to determine the probability.
C.0.39
D. 0.89
E. 0.44

Answers

Answer:  0.44

Reason:

The events "needs a cleaning" and "needs a filling" are independent. Therefore, we can immediately conclude that the prior condition "needs a cleaning" does not affect "needs a filling". That's why we go for the answer of 0.44 which is stated in the instructions.

In terms of symbols:

  • C = patient needs a cleaning
  • F = patient needs a filling
  • P(C) = 0.89 = probability the patient needs a cleaning
  • P(F) = 0.44
  • P(F given C) = P(F) .... since F and C are independent
  • P(F given C) = 0.44

The knowledge about event C happening does not change the value of P(F). Now if events F and C were dependent somehow, then P(F given C) would be different from P(F).

5^2= (-5)^2
true or false

Answers

It’s True because of 5 square is equal to 25
Than (-5) square is also get the same value as 5^2