Answer:
-1.555 and 1.555
Step-by-step explanation:
For a standard normal distribution:
P(- Ƶ ≤ Z ≤ Ƶ) = 0.88
The normal distribution on the curve is symmetrical about Z = 0
Thus
P( -Ƶ ≤ Z ≤ 0) = P( 0 ≤ Z ≤ Ƶ)
However;
This implies that:
P( -Ƶ ≤ Z ≤ 0) + P( 0 ≤ Z ≤ Ƶ) = 0.88
2P ( 0 ≤ Z ≤ Ƶ) = 0.88
P( 0 ≤ Z ≤ Ƶ) = 0.44
P(Z ≤ Ƶ) - P( Z ≤ 0) = 0.44
Since P(Z ≤ 0) = 0.50
P(Z ≤ Ƶ) = 0.44 + 0.50
P(Z ≤ Ƶ) = 0.94
From the probability value table
z = 1.555
Thus the endpoints are:
-1.555 and 1.555
-8(17-12)
What is the value of -2(8-(-2))?
0-4
0-2
O 2
O 4
Answer:
The first one is -40. The second one is -20.
Step-by-step explanation:
With the 1st one you do 17-12 which is 5 and 5*-8 is -40. With the 2nd one, 8-(-2) is 10 and 10*-2 is -20.
I WILL GIVE BRAINLIEST!!
Answer:
35
Step-by-step explanation:
Please help me with all 3, I will mark brainliest as long as u tell me how u got those answers
1- (2,7) x values are not repeated
2-(3,4) bc the x none of the x values are the same, so it makes a function
3-(7,1) the same ^^
Convert 40 miles per hour to feet per second.
Answer:
Step-by-step explanation:
58.6667
Answer:
The answer is 58.6667
A student has a class with four tests, each worth 100 points, and has earned these
scores on the first three tests: 75, 74, 71. What is her average now? What score must
she earn on the fourth test to get a B (80) in the class?
The student's average is 73.33.
The score on the fourth test to have a B is 100.
What is the average?The average can be determined by adding the scores and dividing it by the total scores.
Average on the first three scores : (75 + 71 + 74) / 3
220 / 3 = 73.33
Score on the fourth test to get an 80: 80 = (220 + x) / 4
80 x 4 = 220 + x
320 = 220 + x
x = 320 - 220
x = 100
To learn more about average, please check: https://brainly.com/question/25842202
#SPJ1
the inverse of the function
Answer:
B
Step-by-step explanation:
f^-1(x)=3x/7-9/7
Help me find the given
The perimeter of a triangle is 17x-5 units. One side is 3.x + 5 units and another is 8x-3 units. How many units long is the third side?
Answer:
C = 6x - 7 units
Step-by-step explanation:
Let the three sides of the triangle = A, B, and C respectively.
Given the following data;
Perimeter of triangle, P = 17x-5 units
Side A = 3x+5 units
Side B = 8x-3 units
To find side C?
The perimeter of a triangle is given by the addition of all its three (3) sides.
Mathematically, the perimeter of a triangle is given by the formula;
P = A + B + C
Making "C" the subject of formula, we have;
C = P - A - B
Substituting into the equation, we have
C = 17x - 5 - (3x + 5) - (8x - 3)
C = 17x - 5 - 3x - 5 - 8x + 3
Collecting the like terms, we have;
C = 17x - 3x - 8x - 5 - 5 + 3
C = 6x - 7 units
Therefore, the third side is 6x - 7 units long.
read the photo and please answer!! please someone help me answer this and please do give explanation to your answer!
w + 3 = 16
w/3 = 16
w-3 =16
3w = 16
Answer:
w + 3 = 16
Step-by-step explanation:
"w" is "how many more weeks" and ( + ) she already did her chores for 3 weeks straight.
w + 3 = 16
Remember that whole numbers that are next to each other, for example, 2 and 3, or 43, 44, and 45 are called consecutive numbers.
If n is the smallest of three consecutive integers, write an expression for the largest number.
Answer:
n +2
Step-by-step explanation:
If three numbers are consecutive, the 2nd number would be one more than the 1st number, and the 3rd number would be one more than the 2nd number.
Since the smallest number is n,
2nd consecutive number= n +1
3rd consecutive number
= n +1 +1
= n +2
Thus, the expression for the largest number is n +2.
Let's check!
If the smallest of the three consecutive number is 1, the 3rd consecutive number would be 3.
3rd consecutive number
= n +2
= 1 +2
= 3 (✓)
Thus, the expression is correct.
Draw a line representing the "rise" and a line representing the "run" of the line. State the slope of the line in simplest form.
Calculate the coefficient of
- 2a x (-3ry) x 17x+y25
Answer:
-2, -3, 17, 25.
Step-by-step explanation:
It's any number before a variable.
Need help i don't get it
-3
Step-by-step explanation:
It looks like they give us the x and want to know which other x has the same point on the same y
twice a number plus 7 is no more than 12. what is inequality
Answer:
2x + 7 ≤ 12
Step-by-step explanation:
You deposit $480 each week into an account earning 4.5% interest compounded weekly.
a) How much will you have in the account in 30 years?
b) How much total money will you put into the account?
c) How much total interest will you earn?
Answer:
Result:
The amount is $7763.37 and the interest is $4263.37.
Step-by-step explanation:
Problem:
If you deposit $3500 into an account paying 10% annual interest compounded monthly , how much money will be in the account after 8 years?
Write 50,000+1,000+200+60+3 in standard form
find the derivative of tan^-1 x
PLEASE HELP ME WITH MATH
( if you need a better view just comment your snap or instagram to get a better view )
Answer:
welp you asked me to answer but I don't do this stuff anymore. sorry I hlp you.
Random fact? If you cut off all your skin you could last up to 7 more hours?
I think
please help it's due today haha:/
Answer:
C
Step-by-step explanation:
The pool raises 30 inches every 4 secounds
Therefore the equations to find the answer is 30 divided by 4 which equals 7.5
Answer:
4 seconds = 30 inches
1 second = 30/4
= 7.5 inches
Hope it helped!!
Brainliest!!
Ricky Bobby wants to buy a new automobile for $55,000 in 8 years. How much money must Ricky's original investment be if he makes a single deposit into an account with monthly compounding and an annual interest rate of 3.90% in order to reach his goal? Round your answer to the nearest cent.
Answer:
PV= $40,279.36
Step-by-step explanation:
Giving the following information:
Number of periods= 8*12= 96 months
Interest rate= 0.039/12= 0.00325
Future value (PV)= $55,000
To calculate the initial investment, we need to use the following formula:
PV= FV/(1+i)^n
PV= 55,000 / (1.00325^96)
PV= $40,279.36
How can we multiply fractions
Answer:
There are three simple steps...
Step-by-step explanation:
Step 1: Multiply the numerators from each fraction by each other (the numbers on top). The result is the numerator of the answer.
Step 2: Multiply the denominators of each fraction by each other (the numbers on the bottom).
Step 3: Simplify or reduce the answer.
What is the y-intercept of y= 1/5x - 3
Answer:
-3
Step-by-step explanation:
Slope-intercept form:
y = mx + b
y = 1/5x - 3
m = slope = 1/5
b = y-intercept = -3
Plzz Due today!
The table below represents a linear function f(x) and the equation represents a function g(x): (See pic)
Part A: Write a sentence to compare the slope of the two functions and show the steps you used to determine the slope of f(x) and g(x).
Part B: Which function has a greater y-intercept? Justify your answer.
Answer:
Step-by-step explanation:
A.
slope of f(x) remember that m=rise /run and see how you get from point (0,0) to (1,3) for example
m= rise 3/ run 1= 3
slope of g(x) you find by comparing it to y=mx+b wher m is slope and b is intercept so g(x) slope is m = 7
Slope of f(x) is 3 and slope of g(x) is 7 so g(x) go upward faster.
B.
again compare g(x) =7x+2 with y=mx+b where b is the y-intercept
g(x) has y-intercept at (0,2)
we can see from the table that at x=0 the y-intecept is 0
f(x) has y-intercept at (0, 0)
g(x) has a greater y-intercept point
z varies jointly with y and the square of x.If z= 252 when y= -7 and x= -3 , find z when x = -2 and y= 2
Answer:
z varies jointly with y and the square of x.If z= 252 when y= -7 and x= -3 , find z when x = -2 and y= 2
69 athletes are running a race. A gold medal is to be given to the winner, a silver medal is to be
given to the second-place finisher, and a bronze medal is to be given to the third-place finisher.
Assume that there are no ties. In how many possible ways can the 3 medals be distributed?
Answer:
The order of finishing is important here, therefore you use permutations rather than combinations. Athlete A winning a gold medal, athlete B silver, and athlete C bronze is not the same as athlete A bronze, athlete B silver and athlete C gold for instance
69P3 = 69! / (69 -3!)
Step-by-step explanation:
Find the solution to the system -6×+8y=12 and -3×+4y=6
Answer:
hey can you please answer my biology question
Step-by-step explanation:
pleaseeeeeeeee
i really need
help.
Answer:
y = 3/4x + 3/2
x = 4/3y - 2
There are infinitely many solutions.
__________
To prove these equation are the same
multiply every quantity by 2 using the multiplication property of equality.
[ -6x + 8y = 12 ] = 2 [ -3x + 4y = 6 ]
2(-3x) + 2(4y) = 2(6) = 2(-3x) + 2(-4y) - 2(6) = -6x + 8y = 12 = -6x + 8y - 12
2(-3x) + 2(4y) - 2(6) = -6x + 8y - 12
-6x + 8y - 12 = -6x + 8y - 12
+6x -8y +12 +6x -8y + 12
(The general property of equality, what you do to one side, you must do to the other)
0 = 0 [always true]
HELP ME PLZZZZZZZZZZ I WILL GIVE MORE POINTS AT THE END
Answer: the answer is u [tex]\geq[/tex] 2
Which point-slope equation represents a line that passes through (3,-2) with a slope of -4/5?
y-3=(x+2)
y-2 = (2x - 3)
y+2=- (– 3)
y + 3 = 4(x + 2)
Answer:
y + 2 = -4/5 (x - 3)
Step-by-step explanation:
y - y1 = m (x - x1). Put in your points for y1 and x1, and always remember to flip your signs.
unfortunately, I don't know why that isn't one of your answers, so sticking with the positive 2 I would choose y+2=- (- 3) if I were you. Looks like the -4/5 disappeared somehow?
Hope this helps
You can run 10 miles in 80 minutes. How far can you run in 2.5 hours?
Answer:
18.75 miles
Step-by-step explanation:
1 hour = 60 minutes
2.5 Hours = 150 minutes
10 miles _____> 80 minutes
x_______> 150 minutes
x= ( 150 * 10) / 80
= 1500/80
x= 18.75 miles
easy
Answer:
Step-by-step explanation:
10 miles- 80 minutes
?- 150 minutes
1500+80x
X= 10.75 miles
8 less than the length L
Answer:
L-8=?
Step-by-step explanation:
