Answer:
13
Step-by-step explanation:
Use PEMDAS
2(3+2x5)÷2
first you would do the parenthesis
2 times 5 is 10
so now you have:
2(3+10)÷2You still have parenthesis so you would add 3+10 because that is inside the parenthesis
2(13)÷3
next you would do 2 times 13 which is 26:
so now you have 26÷2 which is 13
so the answer is 13
Answer:
13
Step-by-step explanation:
First do the 2x5 in the parentheses, so 10, then add the 3. Multiply the 13 by 2 to get 26. Divide the 26 by 2 and you get 13
What is the approximate sector area.
which expression is equivalent to the given expression (3m^2n)^3/mn^4
Answer:
Step-by-step explanation:
[tex]\frac{(3m^2n)^3}{mn^4}\\ \\ \frac{27m^6n^3}{mn^4}\\ \\ \frac{27m^5}{n}\\ \\ \text{ or if you want to use negative exponents}\\ \\ 27m^5n^{-1}[/tex]
Six hundred six and six hundredths in standard form.
Answer:
666
Step-by-step explanation:
all the numbers will be in number form instead of word form.
What are the solutions of 3(x - 4)(2x - 3) = 0? Check all that apply.
-4
-3
- 를
c
3
4
Answer:
4 and 3/2
Step-by-step explanation:
[tex]x = 4 [/tex]
[tex]2x = 3 \\ x = \frac{3}{2} [/tex]
Helpppp pleaseeee I need help
Answer:
The answer is D because it is closer to zero so it is greater in value. For example if the number is further away from zero (and is negative) the value is less but if it’s closer it is greater and in positive numbers the rules are opposite
Step-by-step explanation:
Can please some help me out with this 3 question
Answer:
8) x=6.93 y=3.46
9) x=16.9 y=24
An ecologist studying differences in populations of a certain species of lizards on two different islands collects lizards in live traps, weighs them, and then releases them again. (She marks them so she won’t weigh the same lizard twice). During one study period, she collects the data below. All weights are in grams. Is there convincing evidence of a difference in the mean weights of the lizards on the two different islands? Use α = 0.05.
Sample Size Mean (gm) Standard Deviation (gm)
Bear Island 34 43.5 5.33
Goat Island 40 45.9 6.21
Answer:
The correct solution is "[tex]t=\frac{43.5-45.9}{\sqrt{\frac{5.33^2}{34} +\frac{6.21^2}{40} } }[/tex]".
Step-by-step explanation:
The given values are:
Bear island:
n1 = 34
[tex]\bar{x_1}[/tex] = 43.5
S₁ = 5.33
Goat island:
n2 = 40
[tex]\bar{x_2}[/tex] = 45.9
S₂ = 6.21
Now,
⇒ [tex]t=\frac{\bar{x_1}-\bar{x_2}}{\sqrt{\frac{S_1^2}{n_1} +\frac{S_2^2}{n_2} } }[/tex]
On substituting the given values, we get
⇒ [tex]t=\frac{43.5-45.9}{\sqrt{\frac{5.33^2}{34} +\frac{6.21^2}{40} } }[/tex]
Given triangle ABC where
Please help me I really need it. Thanks!
What is the difference between the number of the students who prefer history to English?
Favorite Class
50
40
Number of Students
20
10
Math English Science History
Class
Pick one of these
55
35
45
10
Please help me
Will give you brainly
Answer:
They are 45 history students and 10 English students the difference is 35 students
35
86 49 63 90 82 98 36
What is the variance of the data set?
Answer:
→ Mean of given data = xi = (86 + 49 + 63 + 90 + 82 + 98 + 36) / 7 = 504 / 7 = 72 .
→ variance of the set of data = 525
Step-by-step explanation:
Hope it is helpful....
Answer:
525
Step-by-step explanation:
(86 + 49 + 63 + 90 + 82 + 98 + 36) / 7 = 504 / 7 = 72 . → variance of the set of data = 525
The question above...
Answer:
B,C,D are all isocele triangles
Step-by-step explanation:
Given the equation of a circle, (x - 6)^2 + (y + 7)^2 = 64, what would the
center and radius of the circle be?
A: (6,-7); r = 64
B: (6,-7); r = 8
C: (-6, 7); r = 8
D: (6,-7); r = 32
Answer:
B
Step-by-step explanation:
Set x-6 and y+7 equal to zero to find the center
[tex]x - 6 = 0[/tex]
[tex] = 6[/tex]
[tex]y + 7 = 0[/tex]
[tex]y = - 7[/tex]
So the center is (6,-7)
Take the square root of the right side to find the radius.
[tex] \sqrt{64} = 8[/tex]
The answer is B
Enrique collects miniature cars. He has one large case that holds 20 cars and 3 same-size, smaller cases to hold his cars.
Let n be the number of cars in each smaller case. Write an algebraic expression to represent how many total cars Enrique can fit in his cases.
Answer:
C = 3n + 20Step-by-step explanation:
There is one large case with 20 cars and 3 small cases with n cars in each.
Possible number of cars C is:
C = 3n + 20An automobile dealer can sell 12 cars per day at a price of $17,000. He estimates that for each $300 price reduction he can
sell two more cars per day. If each car costs him $14,000, and fixed costs are $1000, what price should he charge to
maximize his profit? [Hint: Let x = the number of $300 price reductions.]
How many cars will he sell at this price?
Answer:
$ 1100
Step-by-step explanation:
Let p(x) be the price he charges for a car after x price reductions.
Since car costs him $10,000, and fixed costs are $1000
p(x) = 13000-10000-1000-300x = 2000 - 300x
Let q(x) = 12 + 2x the quantity of cars sold after x price reductions.
and the profit he can make are given by:
Profit = R(x) = (12+2x)(13,000 - 10,000 - 1,000 - 300x) dollars.
As you can see, maximizing profit , we have to check where P'(x) = 0
And P''(x)<0.
So we get x = 3.
Replacing the value we get we get 2000 - 300 X 3 = 2000 - 900
= $ 1100
]
Consider the case where Apple computer tracks online transactions at its iStore and is interested in learning about the purchase patterns of its customers in order to provide recommendations as a customer browses its Web site. A sample of the shopping cart data in binary matrix format resides in the file AppleCart. Each row indicates which iPad features and accessories a customer selected. Using a minimum support of 10 percent of the total number of transactions and a minimum confidence of 50 percent, use XLMiner to generate a list of association rules.
a. Interpret what the rule with the largest lift ratio is saying about the relationship between the antecedent item set and consequent item set.
b. Interpret the support count of the item set involved in the rule with the largest lift ratio.
c. Interpret the confidence of the rule with the largest lift ratio.
d. Interpret the lift ratio of the rule with the largest lift ratio.
e. Review the top 15 rules, and summarize what they suggest.
Answer:
Hello attached below is the sample of the shopping cart data in binary matrix format resides in the file AppleCart
answer :
a) Antecedent : Retina display, stand; Consequent : speakers
b) The support count of that item set which is convoluted in the rule having the largest life ratio = 204 from the output of the " list of Rules "
c) 62.77%
d) The lift ratio = 2.27
e) The top 15 rules have features that are common and this makes apple to put interest on the assortments. as seen an iPad with a retina is always purchased with other accessories, Also an iPad with retina is always paired with memory upgrade as well.
Step-by-step explanation:
steps:
i) generate a list of association rules
ii) update the minimum support to 200 and the required minimum confidence to 50% ( on the dialog box )
a) using the output of the list of association rules
The rule expression for the largest life ratio can be written as
Antecedent : Retina display, stand; Consequent : speakers
This means that if an iPad with retina display is acquired with stand then the speakers are also acquired ( Rule with largest lift ratio )
b) Interpret the support count of the item set involved in the rule with the largest lift ratio
The support count of that item set which is convoluted in the rule having the largest life ratio = 204 from the output of the " list of Rules "
i.e. all items ( 3 ) purchased where purchased 204 times \
c) Interpret the confidence of the rule with the largest lift ratio.
confidence of the rule with the largest lift ratio can be interpreted as
= 204 / 325 = 62.77% i.e. speakers where acquired 204 out of 325 times of acquiring the retina display and stand together
d) Interpret the lift ratio of the rule with the largest lift ratio.
The lift ratio = 2.27
this means that a customer that has acquired a retina display, and a stand is 127% more prospective than other customers who purchase speakers
e) Review the top 15 rules,
The top 15 rules have features that are common and this makes apple to put interest on the assortments. as seen an iPad with a retina is always purchased with other accessories, Also an iPad with retina is always paired with memory upgrade as well.
Bethany is a biologist who has been measuring and recording the rabbit population at a park over the last several years. She has noticed that a trigonometric function can model the population, which reaches a maximum population, m, each summer and a minimum population, n, each winter. If she uses to represent the rabbit population t years from the start of her study, what is the domain of function p?
Answer:
[0,∞)
Step-by-step explanation:
Answer:
[0,∞)
Step-by-step explanation:
Correct on Plato!
5/8 plus 1/16 simplified
PLEASE HELP ASAP
A ball is thrown straight up from the top of a building 144 ft tall with an initial velocity of 48 ft per second. The height
s(t) (in feet)
of the ball from the ground, at time t (in seconds), is given by
s(t) = 144 + 48t − 16t^2.
Find the maximum height attained by the ball.
Answer:
The maximum height attained by the ball is of 180 feet.
Step-by-step explanation:
Vertex of a quadratic function:
Suppose we have a quadratic function in the following format:
[tex]f(x) = ax^{2} + bx + c[/tex]
It's vertex is the point [tex](x_{v}, y_{v})[/tex]
In which
[tex]x_{v} = -\frac{b}{2a}[/tex]
[tex]y_{v} = -\frac{\Delta}{4a}[/tex]
Where
[tex]\Delta = b^2-4ac[/tex]
If a<0, the vertex is a maximum point, that is, the maximum value happens at [tex]x_{v}[/tex], and it's value is [tex]y_{v}[/tex].
In this question:
We have that:
[tex]s(t) = -16t^2 + 48t + 144[/tex]
Which is a quadratic equation with [tex]a = -16, b = 48, c = 144[/tex].
The maximum height is the value of s, which is the output, at the vertex. So
[tex]\Delta = b^2-4ac = 48^2 - 4(-16)(144) = 11520[/tex]
[tex]s_{v} = -\frac{11520}{4(-16)} = \frac{11520}{64} = 180[/tex]
The maximum height attained by the ball is of 180 feet.
what is the discounted price of a $15.50 with a 20% discount
Answer:
$12.40
Step-by-step explanation:
100% -20% discount = 80%
15.50 x 0.80 = 12.40
There are six players on a coed volleyball team. Alter an
exhausting game. Each girl drinks 5 cups of water. Each boy drinks 7 cups of water. The coach drinks 9 cups. A total of 43 cups of water is consumed be everyone. How many boys and how may girls are there on the team?
Answer:
4 girls and 2 boys.
Step-by-step explanation:
What’s the slop of the line in simplest form.
Answer:
y=1/2x +4
rise over run 1/2
y intercept is 4
The perimeter of a rectangle is 62cm.if the length of the rectangle is 24cm,what is tge width of the rectangle
Answer:
b= 7
Step-by-step explanation:
here's your solution
=> perimeter of rectangle = 62 cm
=> length = 24 cm
=> let width be (b)
=> perimeter of rectangle = 2(l + b)
=> 2(l + b ) = 62
=> 2(24 + b) = 62
=> 48 +2b = 62
=> 2b = 62 - 48
=> 2b = 14
=> b = 14/2
=> b = 7
hope it helps
Find the volume of the irregular figure. 2 cm 3 cm 4 cm [?] cm3 5 cm 7 cm 3 cm 6 cm
No links for answers
Answer:
102cm³
Step-by-step explanation:
Imagine the shape as two rectangular prisms, a small one on top of a bigger one. Find their volumes individually, and then add them together:
Small rectangular prism
Volume=length*width*depth
=2*3*(7-5)
=6*2
=12cm³
Bigger rectangular prism
Volume=length*width*depth
=6*3*5
=6*15
=90cm³
12+90=102cm³
On a team, 7 girls and 2 boys scored a total of 46 points. The difference between the number of points scored by the 7 girls and the number of points scored by the
2 boys is 38. Each girl scored the same number of points and each boy scored the same number points. Find the number of points scored by each girl and each
boy
Answer:
Step-by-step explanation:
let the points scored by a girl=x
points scored by a boy=y
7x+2y=46
7x-2y=38
add
14x=84
x=84/14=6
7×6+2y=46
2y=46-42=4
y=4/2=2
girl scored =6 points
boy scored=2 points.
Find 22% of 48
Help please- i need this answer i’m stuck on it
What is the surface area in yards squared of the triangular prism shown below?
Answer:
1,120 yd²
Step-by-step explanation:
Surface area of triangular prism = 2(BA) + P*H
✔️Triangular base area (BA) = ½bh
b = 15 yd
h = 8 yd
Base area (BA) = ½*8*15 = 60 yd²
✔️Perimeter of the base (P) = 17 + 15 + 8 = 40 yd
✔️Height or lenghtbor prism (P) = 25 yd
✔️Surface area = 2(60) + 40*25 = 120 + 1,000 = 1,120 yd²
A model of a rectangular prism is shown below.
Answer:
a. Base area, B= 24 square units.
b. Volume, V = 96 cubic units.
Step-by-step explanation:
Given the following data;
Length of sides = 4 units
Width of sides = 6 units
Height = 4 units
a. To find the base area, B;
The base of a rectangular prism is a rectangle.
Area of rectangle, B = length * width
Area of rectangle, B = 4 * 6
Area of rectangle, B = 24 square units.
b. To find the volume;
Volume of rectangular prism = base area * height
Volume= 24 * 4
Volume = 96 cubic units.
Answer:
B = 24 square units.
V = 96 cubic units.
Step-by-step explanation:
Hope this helps
Given that a = 2.4 cm, and b = 9.6 cm, work out x
Answer:
where am i supposed to find the x if you haven't given the equation for the sum
Step-by-step explanation:
(−1)^3⋅(−1)^2
simplify
Please help me with 11!!!!
Answer:
c
Step-by-step explanation: