Helpppppp pleaseee this is timed. NO LINKS OR I WILL REPORT YOU please help I will mark you brainliest. Also please give an explanation please pretty please
Answer:
whats the question??
Step-by-step explanation:
One satellite is scheduled to be launched from Cape Canaveral in Florida, and another launching is scheduled for Vandenberg Air Force Base in California. Let A denote the event that the Vandenberg launch goes off on schedule, and let B represent the event that the Cape Canaveral launch goes off on schedule. If A and B are independent events with P(A) > P(B), P(A ∪B) = 0.626, and P(A ∩B) =0.144.
Required:
Determine the values of P(A) and P(B).
Answer:
[tex]P(A) = 0.45[/tex]
[tex]P(B) = 0.32[/tex]
Step-by-step explanation:
Given
[tex]P(A) > P(B)[/tex]
[tex]P(A\ u\ B) = 0.626[/tex]
[tex]P(A\ n\ B) = 0.144[/tex]
Required
Find P(A) and P(B)
We have that:
[tex]P(A\ u\ B) = P(A) + P(B) - P(A\ n\ B)[/tex] --- (1)
and
[tex]P(A\ n\ B) = P(A) * P(B)[/tex] --- (2)
The equations become:
[tex]P(A\ u\ B) = P(A) + P(B) - P(A\ n\ B)[/tex] --- (1)
[tex]0.626 = P(A) + P(B) - 0.144[/tex]
Collect like terms
[tex]P(A) + P(B) = 0.626 + 0.144[/tex]
[tex]P(A) + P(B) = 0.770[/tex]
Make P(A) the subject
[tex]P(A) = 0.770 - P(B)[/tex]
[tex]P(A\ n\ B) = P(A) * P(B)[/tex] --- (2)
[tex]0.144 = P(A) * P(B)[/tex]
[tex]P(A) * P(B) = 0.144[/tex]
Substitute: [tex]P(A) = 0.770 - P(B)[/tex]
[tex][0.770 - P(B)] * P(B) = 0.144[/tex]
Open bracket
[tex]0.770P(B) - P(B)^2 = 0.144[/tex]
Represent P(B) with x
[tex]0.770x - x^2 = 0.144[/tex]
Rewrite as:
[tex]x^2 - 0.770x + 0.144 = 0[/tex]
Expand
[tex]x^2 - 0.45x - 0.32x + 0.144 = 0[/tex]
Factorize:
[tex]x[x - 0.45] - 0.32[x - 0.45]= 0[/tex]
Factor out x - 0.45
[tex][x - 0.32][x - 0.45]= 0[/tex]
Split
[tex]x - 0.32= 0 \ or\ x - 0.45= 0[/tex]
Solve for x
[tex]x = 0.32\ or\ x = 0.45[/tex]
Recall that:
[tex]P(B) = x[/tex]
So, we have:
[tex]P(B) = 0.32 \ or \ P(B) = 0.45[/tex]
Recall that:
[tex]P(A) = 0.770 - P(B)[/tex]
So, we have:
[tex]P(A) = 0.770 - 0.32 \ or\ P(A) =0.770 - 0.45[/tex]
[tex]P(A) = 0.45 \ or\ P(A) =0.32[/tex]
Since:
[tex]P(A) > P(B)[/tex]
Then:
[tex]P(A) = 0.45[/tex]
[tex]P(B) = 0.32[/tex]
5 The regular price of a kite is $9.60. Today it is on sale at 1/3 off the regular price. What is the sale price of the kite? $
Answer:
its 6.40
Step-by-step explanation:
What is the 12th term of the geometric sequence where *
A7 = 7 and 10 = -56
O-448
0-224
O -112
0 -96
Answer:
-224
Step-by-step explanation:
Geometric sequence is given by An = A*R^(n-1)
Given A7 = 7 and A10 = -56
A10/A7 = -8 = R^(10-7)
R^3 = -8
R = -2
A12 = A10*R^2
= -56*-2^2
= -224
Answer:
Step-by-step explanation:
A7 = 7
A10 = -56
7xRxRxR = -56
R = -2
A12 = A10xRxR
= -56 x -2 x -2
= 224
453-44:6*7/2-678
Heeeeeeelp
Answer:
[tex]\frac{-752}{3}[/tex]
Step-by-step explanation:
Classify the slope of the line shown:
Answer:
Its a positive slope since its going up.
What is the exponential form of the expanded form below?
10 times 10 times 10 times 10 times 10
5 times 10
5 superscript 10
10 superscript 1
10 superscript 5
Answer:
b
Step-by-step explanation:
Answer:
it's D (10^5)
Step-by-step explanation:
What's is 25/6 as an mixed number
Answer:
4 1/6
Step-by-step explanation:
6 goes into 25 4 times with one leftover converting to the extra 1/6th
Answer:
4 R 1
Step-by-step explanation:
in angle RST, the measure of
Answer:
Angle RST is a straight angle, or 180°.
Step-by-step explanation:
Subsequently, question is, what is RST measured in? Triangle RST is isosceles means that two of its angles are equal. (1) The measure of angle T is 100 degrees --> since no other angle can be equal to 100 degrees (because in this case the sum of the angles will be more than 180 degrees) then the other two angles, R and S, are equal: R=(180-100)/2=40.
Likewise, people ask, what is the measure of angle rst 94?
Then the measure of arc RST is 94° +96° = 190°.
What is the measure of arc rst?
— RT is a diameter, so RST is a semicircle, and m RST = 180°. The measure of a minor arc is the measure of its central angle. The expression m AB is read as “the measure of arc AB.” The measure of the entire circle is 360°.
44 points for answer
Answer:
30 m vertically and 10 horizontally for a rectangle in a corner of the warehouse.
HELP ME PLEASEEEEEEEEEEEEEEEE
Answer:
76
Step-by-step explanation:
Write log2 0.25 = -2 in exponential form
Answer:
0.25 = 2^-2
The "^" means that -2 is an exponent on top of 2.
PLEASE HELP! Image below
Answer:
1.6
Step-by-step explanation:
So, first, write down the number of jokers in each deck of cards.
That would be: 0, 1, 2, 2, 3
Then, add up all those numbers.
0+1+2+2+3=8
Now, divide that sum by the number of decks or cards shown in the data set, which would be 5.
8/5=1.6
So, the mean of the data in the dot plot shown is 1.6.
:L)
Sal is tiling his entryway. The floor plan is drawn on a unit grid. Each unit length represents 1 foot. Tile costs $1.05 per square foot. How much will Sal pay to tile his entryway? Round your answer to the nearest cent.
Sal will pay $77.78 to tile his entryway
SOLUTION:The image of the question is attached below.
Given each unit length = 1 foot
Tile cost per square feet = $1. 65
To find the area, split the floor shape into two shape.
One is trapezoid and the other is parallelogram.
Let's count the grid given.
The parallels sides of trapezoid are 7 ft and 4 ft, height is 7 ft.
The base and height of the parallelogram are 4 ft and 4 ft respectively.
Area of the trapezoid =1/2 ×(sum or parallel sides)× height
=1/2× (7+4)×5
=1/2×11×5
Area of the trapezoid = 27.5 sq.ft
Area of the parallelogram = base × height
= 4 ft × 4 ft
Area of the parallelogram = 16 sq. ft
Total area = 27.5 sq. ft + 16 sq. ft
= 43.5 sq. ft
Cost of area per sq. ft = $1.65
Cost of area 43.5 sq. ft = 43. 5 × 1.65
= $71.775
= $71.78
Hence Sal will pay $71.78 to tile his entryway.
Please help!!! Make up a word problem that the following equation could
represent:
5x + 9 = 44
Answer:
Marissa buys 5 bottles of soda which cost X, she also buys a 9 dollar meal. If her total cost was 44 dollars, how much does each bottle cost?
Step-by-step explanation:
Answer:
there was was 5 fish in the tank and a shipment of x amount plus nine recent babies were born? equaling to 44 in total?
Step-by-step explanation:
Use operations of decimal, fraction, and percent numbers to model the following scenarios. In your final answer, include only an equation or proportion modeling the scenario. Do not solve the problems.
A family dines in a popular franchise restaurant. At the end of the meal, they decide to leave their server a monetary tip that is equal to 20% of the total bill amount, $60.50. How much will the family leave their server as a tip?
A family dines in a popular franchise restaurant. They plan to use a coupon that will give them a discount of 15% off of their total dinner bill, not including applicable sales tax or their server’s tip. If the family’s dinner bill totaled $34.00 before tax and tip, how much money will they save by using the coupon?
A family dines in a popular franchise restaurant. They plan to use a coupon that will give them a discount of 10% off of their total dinner bill, not including applicable sales tax or their server’s tip. The bill totals $157.30 before tax and tip. What is the new total after the server applies the 10% off coupon?
A family of eight dines in a popular franchise restaurant. The restaurant has a policy of automatically including a standard tip to the final bill for parties larger than six people. The bill for the meal included a total of $58.25 in food and beverage sales, plus a standard tip of $10.49. What percent of the food and beverage sales does the restaurant consider to be a standard tip for parties larger than six?
A family dines in a popular franchise restaurant that has a policy of automatically including a 20% tip on all food and beverage sales before coupon discounts are applied. What is the family’s total bill amount if their food and beverages totaled $94.20 and they used a 15% off coupon? (HINT: Create more than one model.) DONT ANSWER THE QUESTION JUST PUT THE EQUATIONS
Answer:
A) t=0.2(60.5)
B) d=0.15(34)
C) t=0.9(157.3)
D) p=100(10.49/58.25)
E) t=0.85(94.2+0.2(94.2))
Step-by-step explanation:
A)
Let the tip be represented by t. The tip is 20% of $60.50:
t=0.2(60.5)
B)
Let the money they save be represented by d. Their discount is 15% of $34:
d=0.15(34)
C)
Let the new total be represented by t. Their discount is 10%, so they will only be paying 90% of $157.30t:
t=0.9(157.3)
D)
Let the percentage be represented by p. The tip is $10.49, to find this as a precent of the $58.25 bill, divide the tip by the bill and multiply by 100:
p=100(10.49/58.25)
E)
First find the total after the tip but before the coupon.
Their tip is 20% of $94.20, and their total before the coupon is $94.20 plus the tip: 94.2+0.2(94.2)
Now find their final total.
Let the final total be represented by t. The discount is 15%, so they will only be paying 85% of the total after tip:
t=0.85(94.2+0.2(94.2))
Who ever answers gets to be brainlist anyways tell me how to mark you as brainlist?
Answer:
part W
you tap the person and it gives you that option
hope that helps I don't answer things for points I like to help and maybe
Henry is recording what kind of shoes people are wearing at
the mall. Out of the 12 people he has seen, 4 are wearing high
heels. What is the experimental probability that the next
person Henry sees will be wearing high heels?
Answer:
1/4
Step-by-step explanation:
if you subtract 12 - 4 you get 8 and 4/8 = 1/4
WHATS THE ANGLE MEASUREMENTS ?? & TELL HOW YOU GOT IT !!
PLEASE HELP !! ILL GIVE BRAINLIEST!! 100 POINTS !! NO FAKE ANSWERS.
Answer:
a=42 b=71.5 c=42.5 (lemme know if this is wrong)
Step-by-step explanation:
7x+4x+5x=16x
2+10=12
180-12= 168 degrees.
168/16=x
x=10.5
b= 71.5
a=42
c=42.5
A person invested $810 in an account growing at a rate allowing the money to double
every 10 years. How long, to the nearest tenth of a year would it take for the value of
the account to reach $1,690?
Answer:
i dont know bro
Step-by-step explanation:
Answer:
10.6
Step-by-step explanation:
PLEASE HELP ASAPPP!!
Answer:
A.
D: x [tex]\geq[/tex] -7
R: y [tex]\geq[/tex] -9
B.
D: x [tex]\geq[/tex] -3
R: All real numbers
C.
D: -10 < x < 10
R: -20 < y < 10
if i have 12 apples, and then sally takes one, and billy takes 8, then i go pick 18 more apple but i eat 14, how many apples do i have? ANSWER THIS FAST!!
Answer:
7 apples is the correct answer I believe.
A hoodie normally costs $35. There is a 25% discount. What is the sale price of the hoodie ?
Answer:
The new sale price is $26.25 dollars.
Step-by-step explanation:
Answer: $26.25
Step-by-step explanation:
multiply 35.00 by .25 or 25% and you get 8.75 and then subtract that from 35 to get $26.25
Hope this helps ! :)
Use the following probabilities to answer the question. It may be helpful to sketch a Venn diagram.
P(A) = 0.44, P(B) = 0.36 and P(A and B) = 0.20 .
P(B ∣ not A)=
Answer:
0.2857
Step-by-step explanation:
P(B | not A)
Recall :
P(A | B) = P(A n B) / P(B)
Hence ;
P(B | not A) = P(B and not A) / P(not A)
P(not A) = 1 - P(A) = 1 - 0.44 = 0.56
P(B and not A) = P(B) - P(A and B) = 0.36 - 0.20 = 0.16
Hence,
P(B | not A) =P(B and not A) / P(not A) = 0.16 / 0.56
= 0.2857
Find the equation of a line perpendicular to 4x - 5y = -1 that contains the point (5, -4)
Answer:
y = -5/4x + 2 1/4
Step-by-step explanation:
you would start by changing the equation to point intercept form
4x + 1 = 5y
4/5y + 1/5 = y
then you fill in the points and change the slope to -5/4 (reciprocal and opposite sign)
-4 = -5/4(5) + b
-4 = -6.25 + b
2.25 = b
What is the y-intercept in the equation y = 4x - 3?
answer: -3
remember the equation y = mx + b
m is the slope, and b is the y-intercept
so in the equation y = 4x - 3,
4 replaces the m as the slope and -3 replaces b for the y-intercept
so -3 is your answer
Answer:
-3
Step-by-step explanation:
Triangle LMN has the vertices shown on the coordinate grid.
What is the length of LM?
I’ll give BRAINLIEST
9514 1404 393
Answer:
d. √74 units
Step-by-step explanation:
The distance formula is useful for finding the length of a line segment.
d = √((x2 -x1)^2 +(y2 -y1)^2)
Filling in the point coordinates L(-5, -3) and M(0, 4), we find the length of LM to be ...
LM = √((0-(-5))^2 +(4 -(-3))^2) = √(25 +49)
LM = √74 . . . units
what the surface area of the cube
Answer:
sum of area of All six faces of cube is it's total surface area
Step-by-step explanation:
surface area of a cube =6*area of faces =6*(side) square
The population of a town is increasing by 647 people Per year if the population is 1400 today what will the population be in three years?
What is the correct order of the functions from least to greasiest according to the average rate of change on the interval from x-1 to x =3