Answer:
maybe use a calculator
Step-by-step explanation:
you can put in 57 and then divide it by 2%
Answer:
one way is to multply 57$ by 2% then you well find the tax
Step-by-step explanation:
it's actally a good stragey
A survey showed that 70% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 7 adults are randomly selected, find the probability that exactly 2 of them need correction for their eyesight.
Answer:
0.0250047
Step-by-step explanation:
Given that :
Proportion who need correction glasses = 70%
Number of trials = 7
Probability that exactly 2 needs correction glasses :
Using a binomial probability formula :
P(success) = p = proportion who need glasses = 0.7
P(x =x) = nCr * p^x * (1 - p)^(n - x)
P(x = 2) = 7C2 * 0.7^2 * 0.3^(7 - 2)
P(x = 2) = 7C2 * 0.7^2 * 0.3^5
P(x = 2) = 21 * 0.49 * 0.00243
P(x = 2) = 0.0250047
How to solve -6(8x+20) incorrectly
Find the slope between the two points.
(4, 2) and (3, 8)
Plz help ASAP
Answer: -6
Step-by-step explanation: 8-2= 6 and 3-4= -1. So 6/-1 is -6
What is the equation of the line that is parallel to the line 5x + 2y = 12 and passes through the point (-2, 4)?
O y=-5/2x-1
O y=-5/2x+5
O y=2/5x-1
O y=2/5x+5
Need help Pronto! Will give braintliest.
Answer:
2
Step-by-step explanation:
I did my work here, and can u pls answer my recent question
What is the best name of the line?
Find - square root 49
+7
7
-7
24.5
Easy points please put answer
Answer:
7?
Step-by-step explanation:
39.4 x 1.7 I don’t how workout this out
Answer:the answer is 66.98
Step-by-step explanation:
What is the domain of the given function?
{x | x = –6, –1, 0, 3}
{y | y = –7, –2, 1, 9}
{x | x = –7, –6, –2, –1, 0, 1, 3, 9}
{y | y = –7, –6, –2, –1, 0, 1, 3, 9}
Answer:
{x | x = –6, –1, 0, 3}
Step-by-step explanation:
doin the test rn
Bank teller has 500 bills totalling $8100.00. How many tens and twentys does she have
Answer:
$20 bills = 310, $10 bills = 190
Step-by-step explanation:
To solve this problem, we must make a system of equations
Let x = the number of $20 dollar bills and let y = the number of $10 dollar bills
A $20 bill is 20 dollars and a $10 dollar bill is 10 dollars. The money added together will equal $8100, so an equation for this would be:
20x + 10y = 8100
The number of 20 dollar bills and 10 dollar bills added together will be 500 bills, so that equation would be:
x + y = 500
Now we have our system of equation! To solve this, we will use substitution.
If x + y = 500, then x = 500 - y.
We can substitute this into x in the first equation.
20x + 10y = 8100 will become:
20(500 - y) + 10y = 8100
10000 - 20y + 10y = 8100
10000 - 10y = 8100
We can add 10y to both sides and subtract 8100 from both sides
1900 = 10y
Now divide both sides by 10.
190 = y
There are 190 10 dollar bills.
Plugging this value into the equation, we have:
x + y = 500
x + 190 = 500
Subtract 190 from both sides
x = 310
There are 310 20 dollar bills
Which algebraic expression is equivalent to the expression below?
--------------------------
(4n + 14) + (6 + 7n)
--------------------------
A. 24n + 7
B. 10n + 21
C. 18n + 13
D. 11n + 20
Answer:
D
Step-by-step explanation:
Combine like terms 4n can only be added with 7n and 14 can only be added to 6
Answer:
11n + 20
Step-by-step explanation:
Because all of the signs are + , the parentheses can be removed.
Next, combine like terms:
4n + 14 + 6 + 7n = 11n + 20
None of the three given possible answers is correct.
A proportional relationship is graphed on the coordinate plane. The line that represents the relationship passes through points (0,0) and (5,10). What is the unit rate of the proportional relationship?
Answer:
Step-by-step explanation:
HELLPPPP
PLZ ANSWER IF U KNOW THE ANSWER
Answer: its b
Step-by-step explanation:
Answer:
B.
Step-by-step explanation:
Which system of linear inequalities is represented by
the graph?
Answer:
you forgot to put the image for the graph
Choose all that apply!!
Answer:
B and D. I think
i need help with this asap! will give brainiest if answered correctly
Answer:
Step-by-step explanation:
2
What is the x -coordinate of the x-intercept of the function 2/3y=−6x+12?
Answer:
y=9x+18
Step-by-step explanation:
to get 9, use the rise over run way. Using that, I got 9/1, which is equivalent to 9. Then you MUST add x after, so then you get 9x. The last number is always the y intercept, or where the line meets the vertical line. That was 18.
Hope I helped :)
100 points! hard problem!
Answer:never gonna give you up
Step-by-step explanation:by rick astley
"you wouldnt get this from any other guy and i just wanna ask you how your feeling, gotta make you underatnd, never gonna give you up, never gonna let you down."
nEvEr gOnnA giVe U uP
Find the values of x,y, and z in the triangle to the right. Help is very appreciated! :)
The length l of a rectangle is decreasing at a rate of 3 cm/sec while the width w is increasing at a rate of 3 cm/sec. When l=5 cm and w=12 cm, find the rates of change of the area, the perimeter, and the lengths of the diagonals of the rectangle. Determine which of these quantities are increasing, decreasing, or constant.
a) The rate of changes of the area of the rectangle is _______ cm^2/sec
Is the area increasing, decreasing, or constant?
b) The rate of change of the perimeter of the rectangle is ____ cm/sec.
Is the perimeter increasing, decreasing, or constant?
c) The rate of change of the length of the diagonals of the rectangle is ____ cm/sec.
Is the length of the diagonals increasing, decreasing, or constant.
Answer:
1) dA/dt = -21 cm²/s and Area is decreasing
2)dP/dt = 0 and perimeter is constant
3) dD/dt = 21/13 cm/s and diagonal is increasing
Step-by-step explanation:
We are given that;
length l of a rectangle is decreasing at a rate of 3 cm/sec.
Thus, dl/dt = -3 cm/sec
Also, the width w is increasing at a rate of 3 cm/sec. Thus;
dw/dt = 3 cm/sec
When l=5 cm and w=12 cm;
A) Area is given by the formula;
A = lw
The rate at which area is increasing is;
dA/dt = l(dw/dt) + w(dl/dt)
Plugging in the relevant values;
dA/dt = 5(3) + 12(-3)
dA/dt = 15 - 36
dA/dt = -21 cm²/s
This is less than 0.thus, A is decreasing.
B) Formula for perimeter is;
P = 2l + 2w
rate of change of perimeter is;
dP/dt = 2(dw/dt) + 2(dl/dt)
Plugging in the relevant values, we have;
dP/dt = 2(-3) + 2(3)
dP/dt = 0
Thus,Perimeter is constant
C) the length of the diagonal of a rectangle is given by;
D = √(w² + l²)
Rate of change of diagonal is;
dD/dt = [2w(dw/dt) + 2l(dl/dt)]/(2√(w² + l²))
2 will cancel out in numerator and denominator to give;
dD/dt = [w(dw/dt) + l(dl/dt)]/(√(w² + l²))
Plugging in the relevant values gives;
dD/dt = [12(3) + 5(-3)]/(√(12² + 5²))
dD/dt = (36 - 15)/13
dD/dt = 21/13 cm/s
This is greater than 0.
Thus, diagonal is increasing.
find the distance between (9,3) and (5,-3) in simplest radical form
Answer:
[tex]d = 2\sqrt{13}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra II
Distance Formula: [tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]Step-by-step explanation:
Step 1: Define
Point (9, 3)
Point (5, -3)
Step 2: Find distance d
Simply plug in the 2 coordinates into the distance formula to find distance d.
Substitute [DF]: [tex]d = \sqrt{(5-9)^2+(-3-3)^2}[/tex]Subtract: [tex]d = \sqrt{(-4)^2+(-6)^2}[/tex]Exponents: [tex]d = \sqrt{16+36}[/tex]Add: [tex]d = \sqrt{52}[/tex]Simplify: [tex]d = 2\sqrt{13}[/tex]Write the equation of the line, in slope-intercept form, that passes through the point (-2, -1) and has slope 5.
Tim
Atte
1N
Help I need to turn this in by 12:30
Which statement(s) most directly apply to capitalism?
1. There is heavy government regulation of industry.
II. Individuals can start some, but not all, kinds of enterprises.
III. The price and availability of goods is determined primarily by the market.
a. I and II
b. ll only
c. I and III
d. Ill only
Answer:
The answer is D, lll only.
Step-by-step explanation:
Just took the test on e d g e!
The statement that most directly applies to capitalism is III only.
Option D is the correct answer.
What is capitalism?It is a system of the economy where means of production and distribution are owned by the private, not the government.
We have,
The economic system of capitalism is characterized by private ownership of the means of production and distribution of goods and services, as well as the profit motive as the driving force behind economic activity.
Based on this definition, statement III most directly applies to capitalism, as it highlights the central role of market forces in determining prices and availability of goods.
On the other hand,
Statement I, which suggests heavy government regulation of the industry, is not a typical feature of capitalism, as it implies a more interventionist approach by the government in the economy.
Capitalism generally favors a more limited role for the government in economic affairs, although some government regulations may still be present.
Statement II, which suggests that individuals can start some, but not all, kinds of enterprises, is also not a defining characteristic of capitalism.
In a capitalist system, individuals are generally free to start any kind of enterprise that they wish, provided they can obtain the necessary resources and meet any legal or regulatory requirements.
Therefore,
The statement that most directly applies to capitalism is III only.
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Please Help These Are All My Points.
In a certain chemical, the ratio of zinc to copper is 4 to 19. A jar of the chemical contains 760 grams of copper. How many grams of zinc does it contain?
1) 760 grams
2) 3,610
3) 30,400
4) 190 or 160 grams
What is an equation of the line that passes through the point (-1,-7) and is perpendicular to the line x+y=6x
10 points need help asap image to help
Fill in the blank in this equation y=7x-5; (2,__)
Answer:9
Step-by-step explanation:
If X is 2, then plug it in to get 2x7-5= 9
Y is 9
Rhoda and James both sell laptops and earn commission based on the number of laptops sold. In one month, Rhoda
earns $2000 in commission for selling 10 laptops and has a base salary of $600. The money James earns for selling
laptops in the same month is shown in the graph below.
Answer: James earns $50 more in commission than Rhoda for each laptop sold.
Step-by-step explanation:hope it helps
James earned $50 more than Rhoda.
What is Data?A collection of information obtained through measurements, study, observations, or analysis is referred to as data. Facts, numbers, names, figures, or even descriptions of things may be included. In the form of graphs, charts, or tables, data is arranged.
Basic facts and entities like names and numbers are referred to as data. Weights, costs, sales volume, employee names, product names, addresses, tax identification numbers, and registration marks are just a few types of data.
Given:
In one month, Rhoda earns $2000 in commission for selling 10 laptops.
For, one laptop = 2000/10
= 200
Now, as from the graph
In one month, James earns $2500 in commission for selling 10 laptops.
For, one laptop = 2500/10
= 250
So, James earned $50 more than Rhoda.
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