Answer:
C. Underroot(108/185)(1 − 108/185)185 + (92/165)(1−92/165)165.
Step-by-step explanation:
Sample size, n1 = 185
x1, = 108
P1 = x1 / n1 = 108 / 185 =
Sample size, n2 = 165
x2, = 92
P2 = x2 / n2 = 92/165
Standard Error = sqrt[(p1(1-p1))/n1 + (p2(1-p2))/n2]
sqrt[(108/185(1 - 108/185)) /185 + (92/165(1 - 92/165)) / 165]
Lisa mows her neighbor’s lawns to earn money. She charges $8.75 per hour. She mows 8 lawns per month, and each lawn takes her 3.5 hours to complete. How much does Lisa earn each month for her lawn mowing services?
If one pair of supplementary angles is a right angle, the other angle must also be a right angle true or false?
Answer: True
Step-by-step explanation:
A supplementary angle refers to the angles that has a sum of 180° when they're added together.
We should note that a right angle equals to 90°, therefore the other angle in the supplementary angle will be:
= 180° - 90°
= 90°
Since a right angle equals 90°, then the other angle must be a right angle.
Therefore, the answer is TRUE.
The ratio of adults to children at a museum is 2:7 which table represents this ratio.
refer to pictures
Answer:
D
Step-by-step explanation:
Find the graph that has equivalent ratios to 2:7 make sure your order is right.
2:7 equals 6:21 for example; 2 x 3=6 7 x 3=21
D
factor the expression 6+27
Answer:
1, 2, 3, and 6 are factors of 6 while 1, 3, 9, and 27 are factors of 27. Notice that the product of the outer elements equal what your factoring as well as the inners.
1x6=6, 2x3=6, 1x27=27, and 3x9=27. Notice the GCF in this case is 3, so factor that out of your initial expression.
Therefore 3(2+9) = 6 +
Step-by-step explanation:
HELP I HAVE A TEST TOMORROW!!! Two of the angles in a triangle measure 19° and 83°. What is the measure of the third angle?
Answer:
78
Step-by-step explanation:
19 + 83+ x = 180
102 + x = 180 - 102
x= 78
What is the distance between -2 1/2, 4 1/2 and 4 3/4, 4 1/2
A. 2 1/4 units
B. 4 1/2 units
C. 7 1/4 units
D. 9 1/4 units
Please help this is due tomorrow :(
9514 1404 393
Answer:
C. 7 1/4 units
Step-by-step explanation:
It can be useful to plot the points on a graph.
The two points are on the same horizontal line, so the distance between them is the difference of their x-coordinates.
4 3/4 -(-2 2/4) = (6 +2) +(3/4 +2/4) = 6 5/4 = 7 1/4 . . . . units
__
Some folks find it easier to do the arithmetic by converting to decimal numbers.
4.75 -(-2.50) = 4.75 +2.50 = 7.25 = 7 1/4 . . . . units
Can someone help me? I’ll reward points + brainalist
Step-by-step explanation:
the question of your answer is d
Answer:
Step-by-step explanation:
Sally told Joe that if you are reducing an image, the scale factor is less than 1, and if you are enlarging an image, the scale factor is greater than 1. Is Sally correct? Explain.
Answer:
YES!
Step-by-step explanation:
if its less than 1, then ur reducing
ex. = 1 x 0.5 = 0.5
If its greater than 1, then ur increasing
1 1.5 = 1.5
Works with any number
i dont know how do i delete this
A movie theater has been charging $10.00 per person and selling about 500 tickets on a typical weeknight. After surveying their customers, the theater management estimates that for every 50 cents that they lower the price, the number of moviegoers will increase by 50 per night. Find the demand function. (Let x represent the number of tickets sold and p represent the price.)
Answer:
[tex]p(x) = -0.01x + 15[/tex]
Step-by-step explanation:
Given
Let x represent the number of tickets, and p the charges
[tex](x_1,p_1) = (500,10)[/tex]
A reduction of 50c gives an increment of 50 tickets.
This gives:
[tex](x_2,p_2) = (500+50,10-0,5)[/tex] ---- [tex]50c = \$0.5[/tex]
[tex](x_2,p_2) = (550,9.5)[/tex]
Required
Determine the demand function
First, calculate the slope:
[tex]m = \frac{p_2 - p_1}{x_2 - x_1}[/tex]
[tex]m = \frac{9.5 - 10}{550-500}[/tex]
[tex]m = \frac{-0.5}{50}[/tex]
[tex]m = -0.01[/tex]
So, the equation is:
[tex]p = m(x - x_1) + y_1[/tex]
[tex]p = -0.01(x - 500) +10[/tex]
[tex]p = -0.01x + 5 +10[/tex]
[tex]p = -0.01x + 15[/tex]
Hence, the function is:
[tex]p(x) = -0.01x + 15[/tex]
Brian buys 5 cookies and 1 bottle of water. The total cost is $8.75. If the bottle of water costs $1.25, which equation can be used to determine the cost of 1 cookie?
A bag contains eight batteries, all of which are the same size and are equally likely to be selected. Each battery is a different brand. If you select two batteries at random, use the counting principle to determine how many points will be in the sample space if the batteries are selected without replacement.
Answer:
7*6*5*4*3 = 7P5 = 2520
Step-by-step explanation:
There will be 56 points in the sample space when two batteries are selected without replacement from the bag.
To determine the number of points in the sample space when selecting two batteries without replacement, we can use the counting principle.
The counting principle states that if there are m ways to do one task and n ways to do another task, then there are m * n ways to do both tasks together.
In this case, the first battery can be selected in 8 ways (since there are 8 batteries in the bag).
After selecting the first battery, there are 7 remaining batteries in the bag. For the second battery, there are 7 ways to select it (one less than the previous selection).
Therefore, the number of points in the sample space is given by multiplying the number of possibilities for the first selection (8) by the number of possibilities for the second selection (7):
8 * 7 = 56
There will be 56 points in the sample space when two batteries are selected without replacement from the bag.
To know more about "replacement." here
https://brainly.com/question/13572039
#SPJ2
What is the minimum value of h(x)?
h(x) = (x - 5)^2 + 6
Answer:
see in pdf the solution is there.
Step-by-step explanation:
The question is in this link (please fast):
Answer:
a) 190
b)-189
Step-by-step explanation:
4a)
-2y+7(4+8y)=
-2y+(7·4)+(7·8y)=
-2y+28+(7·8y)=
-2y+28+(7·24)
-2y+28+168=
-6+28+168=
22+168 solve
4b)
-5w-4(6t+5)
-5w-4(36+5)
-5w-(4·41)
-5w-164
-25-164 solve
-14 is less than or equal to x.
Question options:
-14 > x
-14 ≥ x
-14 ≤ x
-14 < x
Answer:
C
Step-by-step explanation:
This sign "≤" has both the less sign and the equal sign so it indicates that -14 is less than or equal to x.
HElP ME 5th grade math
Answer:
(4.80 x 0.05) + 4.80
Step-by-step explanation:
Help please! Thanks to anyone who answers. I’ll give brainiest!
Answer:
A
Step-by-step explanation:
Question 4
1
Justin regularly eats in the Cafeteria at work. On Monday
Justin bought 2 hamburgers and 1 carton of milk for $2.85.
On Tuesday Justin purchased 3 hamburgers and 2 cartons of
milk for $4.45. How much does a carton of milk cost?
a. $0.35
b. $0.50
c. $0.75
d. $0.85
Does the relation in the table represent direct variation, inverse variation, or neither? If it is director
inverse variation, write an equation to represent the relation. Explain your answer.
9514 1404 393
Answer:
inverse
y = 10/x
Step-by-step explanation:
Inverse variation is described by an equation of the form ...
y = k/x
The value of k is a constant equal to ...
k = xy = 5·2 = 10·1 = 15·2/3 = 20·1/2 = 10
__
Here, the products of the x- and y-values are all 10, so the inverse variation equation is ...
y = 10/x
Pls help
Kari and Julie are practicing for basketball tryouts. Kari makes 3 less than twice as many baskets as Julie.
Part A
Write an expression with two terms for the number of baskets that Kari makes. Explain how you found your expression.
Answer:
Step-by-step explanation:
K=2J-3
Answer:
2x-3
Step-by-step explanation:
Twice as much as Julie: 2 x ? = 2x
3 less than: -3
What acceleration will result when a 12 N force is applied to a 6 kg object?
If you know please include the equation, it would really help me out, thanks so much!
Hi there!
[tex]\large\boxed{2 m/s^{2}}[/tex]
Use the equation F = m · a where:
F = Force (N)
m = mass (kg)
a = acceleration (m/s²)
Plug in the given values:
12 = 6a
Divide both sides by 6:
12/6 = a
a = 2 m/s²
Pls help no links pls pls pls
Answer:
x=20
it told me the answer is too short but that answer is right
8. A pyramid has a volume of 8 cubic feet. The height is 2 feet. The base is rectangular. Give possible dimensions for the length and width of the base.
Answer:
base = 12 ft²
The base could be 3 ft x 4 ft, 6 ft x 2 ft, etc. (any numbers multiplied together = 12)
Step-by-step explanation:
volume = 1/3bh
8 = 1/3b(2)
multiply both sides of the equation by 3:
24 = 2b
b = 12 ft²
How many square feet of outdoor carpet will
we need for this hole?
Answer:
This is your answer ☺️☺️☺️
What type of number is 1/3?
Select each correct answer.
real
rational
natural
whole
integer
irrational
Answer:
1/3 is a rational number
Find the volume for the regular pyramid
A) 6 cu. units B)12 cu. units C)4 cu. units
Answer:
i found the volume it next to the power button on my keyboard
Step-by-step explanation:
Describe the translation from the red figure to the blue figure
Answer:
whattt do I have to do translate what???
Answer:
The blue image is a translation to the red image
Step-by-step explanation:
PLease help good afternoon
Answer: 75
Step-by-step explanation:
[tex]\frac{a}{15}=\frac{5}{1}[/tex]
a*1= 15*5
a= 75
Which answer best describes the shape of this distribution? skewed left skewed right uniform bell-shaped
Answer:
Skewed right
Step-by-step explanation:
Most of the data is to the right, so it's not skewed left.
Uniform is mostly even, so not that either.
Bell shape is centered and vaguely triangular, so incorrect, hence the only remaining option is skewed right.
Hope this helps :)
Stay Cold,
Brook
Paul owns a gym and needs to replace the carpeting on the floor. The gym's floor plan is shown.
8 yd
3 yd
4 yd
المة
How many square yards of carpeting is needed to cover the entire gym?
O 18 square yards
O 24 square yards
O 36 square yards
44 square yards
Answer:
24 square yards
Step-by-step explanation:
Find the diagram attached.
The area of the diagram = Area of rectangle + Area of triangle
Area of rectangle = 3 * 4
Area of rectangle = 12 square yards
Area of triangle = 1/2 * base * height
Area of triangle = 1/2 * 6 * 4
Area of triangle = 12 square yards
Area of the diagram = 12 + 12
Area of diagram = 24 square yards
Hence 24 square yards of carpeting is needed
HELP!!! DUE IN 8 MINS!!
Answer:
Step-by-step B. is your answer
explanation: