Answer:
y = 1
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
y = 1/7(x + 5)
x = 2
Step 2: Evaluate
Substitute in x: y = 1/7(2 + 5)(Parenthesis) Add: y = 1/7(7)Multiply: y = 1The distribution of the amount of money spent by first-time gamblers at a major casino in Las Vegas is approximately normal in shape with a mean of $600 and a standard deviation of $120. According to the standard deviation rule, almost 84% of gamblers spent more than what amount of money at this casino?
A. $360
B. $480
C. $600
D. $720
E. $840
Answer:
$720
Step-by-step explanation:
Given :
Mean, m = 600
Standard deviation, s = 120
Z = (x - m) / s
P(Z > x) = 84%
P(Z > x) = 0.84
Zscore corresponding to P(Z > x) = 0.84 will be -0.994
Hence,
-0.994 = (x - 600) / 120
120 * -0.994 = x - 600
119.28 = x - 600
119.28 + 600 = x
719.28 = x
Hence,
X = $720
Compare using <, >, or =. 72 ___ 26
Answer:
72 > 26
Step-by-step explanation:
72 is bigger than 26
On Monday, a museum had 350 visitors. On Tuesday, it had 550 visitors. Estimate the percent change
in the number of visitors to the museum. Use pencil and paper. Estimate how many people would
have to visit the museum on Wednesday to have the same estimated percent change between
Tuesday and Wednesday as between Monday and Tuesday. Explain your answer.
Which of these is the best estimate for the percent change in the number of visitors to the museum?
OA. 75% decrease
OB: 100% decrease
OC. 25% increase
OD. 50% increase
Answer:
50% increase and approximately 825 people on Wednesday
Step-by-step explanation:
the amount of change = 550 - 350 = 200
Therefore, the percent of change is 200/350 = .5714 = 57.1%
Best estimate is 50%
Using 50% as the percent of change, then 1.50(550) = 825 people is the estimated number of people on Wednesday.
Answer:
50% increase
Step-by-step explanation:
Whitney starts the engine on her small private airplane. The engine drives a propeller with a radius of 6.5 feet and its centerline 10.5 feet above the ground. At idle, the propeller rotates at a constant speed of approximately 850 revolutions per minute. The height of one propeller tip as a function of time is given by h = 10.5 + 6.5 sin(850t), where h is the height in feet and t is the time in minutes. Find h when t = 2 minutes.
a.
4.1 ft
b.
9.4 ft
c.
16.9 ft
d.
11.6 ft
Answer:
4.1 ft
Step-by-step explanation:
All we need to do is substitute "t" as 2 minutes to determine the height:
h = 10.6 + 6.5 sin(850*2),
Remove full rotations of 360 until the angle is between 0 and 360° :
h = 10.6 + 6.5 sin(1700) = 10.6 + 6.5 sin(260)
Now evaluate sin(260) :
h = 10.6 - 6.40125... = 4.1987496
Your solution should be 4.1 ft (though it actually should be 4.2 ft)
Given f (x) = 2x3 + 5x2 – 3x and g(x) = 8x – 7, find (f X g)(x).
Step-by-step explanation:
I don't know what you really mean by 2x3 and 5x2 but if the x there's is multiplication sign then your answer is 149x - 24x^2 - 112.
Plzzz help....I am timed...There will be a picture provided....You will get 30 points!!! MATHH
Answer:
It should be the last one, She made a sign error when multiplying.
Answer: The last answer
Step-by-step explanation:
She made a mistake with her signs and put -256 instead of 256
Find the slope of the line that passes through these two points: (- 4, - 4) and (4, - 1)
Answer:
Step-by-step explanation:
( -1 + 4)/(4 + 4)= 3/8
three fractions equivalent to 24/32
Answer:
12/16, 48/64, 72/96
Step-by-step explanation:
Multiply or divide the numerator and denominator by the same number.
2y - 2x = 8
y + 6x = 11
If (1,5) is the solution to the system of equations above, what is the value of 5y?
Answer:
25
plz mark brainliest
Step-by-step explanation:
Answer:
25
Step-by-step explanation:
What is the value of the missing angle? The options are: 129, 153, 169, and 720 degrees.
PLEASE HELP!!!!! I uploaded a picture to hope you can see.
Answer:
Value of x = 169°
Step-by-step explanation:
Given:
Number of side = 6
Angles = 151°, x°, 75°, 135°, 115°, 75°
Find:
Value of x
Computation:
Angle sum of Hexagon = 720°
So,
151° + x° + 75° + 135° + 115° + 75° = 720°
x° = 169°
Value of x = 169°
In ΔQRS, q = 50 cm, s = 27 cm and ∠S=110°. Find all possible values of ∠Q, to the nearest 10th of a degree. PLS
Answer:
2000
Step-by-step explanation:
2hwhjfwftwrd ggg gggggg gggggggggg ggggg
The probability of event A is P(A) = 0.25. What is the probability that event A does NOT occur?
Answer:
.75
Step-by-step explanation:
75%
because it will give 100
Question 18
5 pts
Find the slope of the line perpendicular to the line with the given
information:
y = -7
Answer:
Undefined
Step-by-step explanation:
[tex]y=-7[/tex] has a slope of [tex]0[/tex], since it is a horizontal line. The only types of lines that are perpendicular to horizontal lines are vertical lines, which are usually in the form [tex]x=a[/tex] (where [tex]a[/tex] is any real number). Vertical lines have an undefined slope, so the answer is undefined. Hope this helps!
definition of a rhombus
search nyo na lng po atsaka bagohan pa ako dto sorry
a parallelogram whose all sides are equal is called a rhombus a rhombus is four sided quadrilateral
PROPERTIES
all sides are equal length each pair of opposite side is equal opposite angles are equal diagonal of a rhombus are perpendicular bisector of each otherLEARN FORMULA
[tex]area \: of \: rhombus \: = \frac{1}{2} \: \times product \: of \: diognal \: \\ \\ \\ = \frac{1}{2} \times ac \times bd \\ \\ side \: of \: rhombus \: = \frac{1}{2} \sqrt{(ac {}^{2} + bd {}^{2} } [/tex]
If two negative integers are multiplied together, the product will be
F
negative
G
positive
H
both positive and negative
J
neither positive or negative
Answer: A
Step-by-step explanation:
Answer:
negative
Step-by-step explanation:
-x*-y=z
A total of 5.9 percent of the prime time viewing audience watched shows on ABC, 7.6 percent watched shows on CBS, 5.5 percent on Fox, 6.0 percent on NBC, 2.0 percent on Warner Brothers, and 2.2 percent on UPN. A total of 70.8 percent of the audience watched shows on other cable networks, such as CNN and ESPN. You can find the latest information on TV viewing from the following website:
Develop a pie chart or a bar chart to depict this information. Write a paragraph summarizing your findings.
Answer:
Step-by-step explanation:
Given the data :
ABC = 5.9%
CBS = 7.6%
FOX = 5.5%
NBC = 6.0%
Warner Brothers = 2%
UPN = 2.2%
Other Cable network = 70.8%
From. The piechart distribution, it could be seen that majority of prime time audience watched on other cable network such as CNN and ESPN which Is more than 2 times the percentage that watched on channels such as Fox, ABC, CBS, NBC, Warner Brothers, and UPN which polled about 30% of viewers.
What is 72 divided by 12
Answer:
6
xmxnznfnsmfbxdkdjdjf
Answer:
6
Step-by-step explanation:
72 ÷ 12 =6
Have a nice dayyy
How many 5-digit numbers can be formed using the digits 0,1,2,3,4,5,6,7,8,9, if
repetitions of digits are allowed?
Select one:
a. 3125 five-digit numbers
b. 89,999 five-digit numbers
c. 90,000 five-digit numbers
о
d. 100,000 five-digit numbers
Answer:
The first one!!!!
Step-by-step explanation:
Can someone please help me.
PLEASE HURRY HELP ME DUE IN 5 MIN WILL MARK BRANCH
9514 1404 393
Answer:
parallel
Step-by-step explanation:
We can put both equations into slope-intercept form to make comparison easier.
-3x = 3 - y ⇒ y = 3x +3
3 +y = 3x -2 ⇒ y = 3x -5
These lines have the same slope, but different y-intercepts.
The lines are parallel.
Anne is giving 20 cupcakes to her 5 best friends. How many cupcakes does each friend get? A addition B subtraction C multiplication D division
Answer:
division
Step-by-step explanation:
20:5=4 each .............
Division because your dividing the amount of cupcakes among the friends
Help and explain
===============
Answer:
8 ft = d
Step-by-step explanation:
C = π * d
C = Circumference
π = Pi
d = diameter
C = π • d
25.12 = 3.14 * d
3.14 3.14
8 = d
8 ft = d
In two shipments of fruit, A and B, the proportions of fruit that are apples are and , respectively. Suppose that independent random samples of 50 fruit from A and 100 fruit from B. Let be the sample proportion of apples from shipment A and be the sample proportion of apples from shipment B. What is the mean of the sampling distribution of -
This question is incomplete, the complete question is;
In two shipments of fruit, A and B, the proportions of fruit that are apples are [tex]P^"_{A}[/tex] and [tex]P^"_{B}[/tex] , respectively. Suppose that independent random samples of 50 fruit from A and 100 fruit from B. Let [tex]P^"_{A}[/tex] be the sample proportion of apples from shipment A and [tex]P^"_{B}[/tex] be the sample proportion of apples from shipment B. What is the mean of the sampling distribution of [tex]P^"_{A}[/tex] - [tex]P^"_{B}[/tex] ?
Answer:
the mean of the sampling distribution is [tex]P^"_{A}[/tex] - [tex]P^"_{B}[/tex]
Step-by-step explanation:
Given the data in the question;
let [tex]X_{A}[/tex] be number of apples from the shipment A
and [tex]X_{B}[/tex] be number of apples from shipment B
[tex]P^"_{A}[/tex] = [tex]X_{A}[/tex] / [tex]n_{A}[/tex] = [tex]X_{A}[/tex] / 50 { x ¬ Bin(np )
{ [tex]X_{A}[/tex] = 50[tex]P^"_{A}[/tex] )
[tex]P^"_{B}[/tex] = [tex]X_{B}[/tex] / [tex]n_{B}[/tex] = [tex]X_{B}[/tex] / 100
( [tex]X_{B}[/tex] = 100[tex]P^"_{B}[/tex] )
E( [tex]P^"_{A}[/tex] - [tex]P^"_{B}[/tex] ) = E( [tex]X_{A}[/tex] / [tex]n_{A}[/tex] - [tex]X_{B}[/tex] / [tex]n_{B}[/tex] )
= E( [tex]X_{A}[/tex] / 50 - [tex]X_{B}[/tex] / 100 )
= E([tex]X_{A}[/tex]) / 50 - E([tex]X_{B}[/tex]) / 100
= 50[tex]P^"_{A}[/tex] / 50 - 100[tex]P^"_{B}[/tex] / 100
= [tex]P^"_{A}[/tex] - [tex]P^"_{B}[/tex] { E(X) = np ]
Therefore, the mean of the sampling distribution is [tex]P^"_{A}[/tex] - [tex]P^"_{B}[/tex]
please help me asap!!!
HI=37. it's a lot to explain
A Ferris wheel can accommodate 60 people in 20 minutes. How many people could ride the Ferris wheel in 2 hours ? What was that rate per hour?
Answer:
360 total
60×3×2=360
180 per hour
PLEASE ANSWER
Rectangle ABCD is shown below with a line EF drawn through its center. If the rectangle is dilated using a scale factor of 2 and a line is drawn through the center of the new dilated figure, what relationship will that line have with line EF in the drawing below?
Answer:
The new line will be perpendicular to line EF because both the lines are drawn through the center of the figures (rectangle ABCD and rectangle A'B'C'D') causing both of the lines to intersect each other. Rectangle ABCD will get bigger causing to form rectangle A'B'C'D' because it is dilated with a scale factor of 2. Rectangle A'B'C'D' will contain the new line and line EF.
Hope this helps and stay safe, happy, and healthy, thank you :) !!
What is the perimeter?
7 km
7 km
8 km
kilometers
Submit
Answer:
i think it is
8km
i THINK .
Step-by-step explanation:
sorry if its wrong .
3 Simplify the expression: 5! 2:3! 4. Simplify the expression:
Answer:
10
Step-by-step explanation:
[tex]5! 2:3! 4 \\ \\ = \frac{5! \: .2}{3! \: . 4} \\ \\ = \frac{5.4. \cancel{3!} \: . 2}{\cancel{3!} \: .4} \\ \\ = \frac{40}{4} \\ \\ = 10[/tex]
simplify 3(x-y)+3x+2
Answer:
6x-3y+2
Step-by-step explanation:
I AM BIG BRAIN
Christine Wong has asked Dave and Mike to help her move into a new apartment on Sunday morning. She has asked them both, in case one of them does not show up. From past experience, Christine knows that there is a 47% chance that Dave will not show up and a 37% chance that Mike will not show up. Dave and Mike do not know each other and their decisions can be assumed to be independent. a. What is the probability that both Dave and Mike will show up
Answer:
0.3339 = 33.39% probability that both Dave and Mike will show up
Step-by-step explanation:
Probability of independent events:
If A and B are independent events, the probability of both happening at the same time is given by:
[tex]P(A \cap B) = P(A)P(B)[/tex]
In this question:
Event A: Dave shows up.
Event B: Mike shows up.
Christine knows that there is a 47% chance that Dave will not show up and a 37% chance that Mike will not show up.
This means that [tex]P(A) = 1 - 0.47 = 0.53, P(B) = 1 - 0.37 = 0.63[/tex].
a. What is the probability that both Dave and Mike will show up
[tex]P(A \cap B) = P(A)P(B) = 0.53*0.63 = 0.3339[/tex]
0.3339 = 33.39% probability that both Dave and Mike will show up