Answer:
Use the given functions to set up and simplify (2y+3)−5xy+7x
x =
(2y+3)−5xy+7x=−5xy+7x+2y+3
A speedboat travels 18 miles in 12 minutes.At this rate, how far will the boat go in 1hour? (12 minutes = hour)
Answer:
find the speed for one minute which would 18 divide by 12 which is 1.50 after multipy by 60 because 60 minutes equals 1 hour
Step-by-step explanation:
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it is a polynomial equation of degree two that can be written in tche form, where a,b, and c are real numbers and a =/
Answer:
A quadratic function is a second degree polynomial function. The general form of a quadratic function is this: f (x) = ax2 + bx + c, where a, b, and c are real numbers, and a≠ 0.
pls help will mark brainliest
solve the system using a matrix.
Answer:wertyuiop[]\]
';lkjhgfd
Step-by-step explanation:
Before Sarah does open her account, she sees her grandmother for the holidays. Grandma wants to contribute to Sarah’s ROTH and even matches her contribution, giving her an additional $500 to invest. Now that Sarah has an initial investment of $1000, how much would Sarah have at age 68 based on her predicted rate of return from historical data
Answer:
2,9457
Step-by-step explanation:
100+7% = 1.07
(1.07)^50 = 29.45702506
y = 1000(29.46)
y = 29,460
What is an equation of the line that passes through the point (-6,-1) and is perpendicular to the line 6x-y=7
Answer:
y=-1/6x-2
Step-by-step explanation:
Lets find the slope of the given line
6x-7=y,m=6
The slope of the perpendicular line would be=-1/6
Using the point-slope form y-y1=m(x-x1)
y--1=-1/6(x--6)
y+1=-1/6(x+6)
6y+6=-x-6
6y=-x-6-6
6y=-x-12
y=-1/6x-2
the area of a square plot is 529 m² . What is the length of each side of the plot?
Answer: 279,841 cm2
Step-by-step explanation: 279,841 cm2
Factorize 3x² + 7xy - 6y².
Evaluate the expression in (a) above if x = 4 and y = 3.
Please help. Thanks.
Answer:
41
Step-by-step explanation:
You move right 3 units and up 4 units. You end at (5, 3). Where did you start?
Answer:
(2,-1)
Step-by-step explanation:
If you start at (2,-1) and go 3 units right, you land at (5,-1). Then, when you go up 4 units you land at (5,3)
Please please help me with this question please help me now please
Answer:
a) linear, straight when graphed and no exponents
b) quadratic, x has exponent
c) quadratic, x has exponent
d) linear, no exponent
e) quadratic, x has exponent
f) i think it's neither because there's two variables that can't add together
Step-by-step explanation:
Answer:
A is linear because a linear equation is mapped in the form y=ax+b and results in a straight line when graphed. This equation has a slope, 1, which occupies the space for a and a y-intercept of 3 which occupies the space for b
B is neither because it doesn't fit the linear form or the quadratic form (which is constrained by the equation y=ax^2+bx+c. The highest degree for this form is 2.) I believe this function is actually a type of cubic which is not an option for the question.
C is a quadratic because it follows the form y=ax^2+bx+c and results in a parabola
d. 3x-y=5 is linear because even though it is not in the y=ax+b form, it can be manipulated into it by subtracting 3x from both sides and then dividing by -1 on both sides to get y=3x-5 which fits the form and graphs a line.
e. 5-x^2=89 would be neither because there is only one variable and there is no value of y that can be solved for. While we can find an x value (or perhaps multiple x values depending on the equation) it wouldn't result in a graphable equation which is a necessity to be classified as a linear or quadratic. In fact, I believe this is actually just an equation and not a function at all and since linear and quadratics are forms of functions they cannot be either. This is because a function is defined as a relation between two variables where each input has one (and only one) output and this equation doesn't have two variables and wouldn't have an output.
f. Neither for the same reason as in e
Hope this helps!
Complete the given ordered pairs 2x +y=8
Answer:
hope it helps .... . . ........................!
a line segment is defined as a part of a straight line connecting two points called the
Answer:
chord
Step-by-step explanation:
I'm just filling this blank, when I need to send it's say more words
suppose that p is the probability that a randomly selected person is left handed. The value (1-p) is the probability that the person is not left-handed. In the sample of 100 people, the function V(p)= 1000 p(1-p) represents the variance of the number of left-handed people in a group of 100.
a) What value of p maximizes the variance?
b) What is the maximum variance?
Answer:
a) 1/2
b) 250
Step-by-step explanation:
The start of the question doesn't matter entirely, although is interesting to read. What we are trying to do is find the value for [tex]p[/tex] such that [tex]1000p(1-p)[/tex] is maximized. Once we have that [tex]p[/tex], we can easily find the answer to part b.
Finding the value that maximizes [tex]1000p(1-p)[/tex] is the same as finding the value that maximizes [tex]p(1-p)[/tex], just on a smaller scale. So, we really want to maximize [tex]p(1-p)[/tex]. To do this, we will do a trick called completing the square.
[tex]p(1-p)=p-p^2=-p^2+p=-(p^2-p)=-(p^2-p+1/4)-(-1/4)=-(p-1/2)^2+1/4[/tex].
Because there is a negative sign in front of the big squared term, combined with the fact that a square is always positive, means we need to find the value of [tex]p[/tex] such that the inner part of the square term is equal to [tex]0[/tex].
[tex]p-1/2=0\\p=1/2[/tex].
So, the answer to part a is [tex]\boxed{1/2}[/tex].
We can then plug [tex]1/2[/tex] into the equation for p to find the answer to part b.
[tex]1000(1/2)(1-1/2)=1000(1/2)(1/2)=1000*1/4=250[/tex].
So, the answer to part b is [tex]\boxed{250}[/tex].
And we're done!
5) A rectangular piece of paper is 10cmn long and 5cm broad.find its area,
Which of the following is true?
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The Correct statement is :
RT is an altitude of Triangle QRSErika created a scatterplot representing the height a plant grew after a certain number of hours of sunlight. The plant height was plotted on the horizontal axis. Which statement best describes how she should draw her line of best fit? A. The line of best fit will be horizontal. B. The line of best fit will be vertical. C. The line of best fit will increase from left to right. D. The line of best fit will decrease from left to right.
Answer:
B
Step-by-step explanation:
The line of best fit should be vertical. This answer may not be correct.
The correct statement is statement B that is the line of best fit will be vertical.
What is a scatter plot ?
A scatter plot is a graph in which the values of two variables are displayed along two axes, and any correlation is revealed by the pattern of the resulting points.
It is given that , after a particular amount of hours of sunlight, Erika made a scatterplot showing the height that a plant increased to. On the horizontal axis, the plant height was shown.
We know that in a scatter plot , the values of two variables are displayed along two axes. As the plant height was shown on the horizontal axis. The other value which is amount of hours of sunlight will be on the vertical axis.
So , the statement which best describes how Erika should draw her line of best fit i.e., the line of best fit will be vertical.
Therefore , the correct statement is statement B that is the line of best fit will be vertical.
Learn more about scatter plot here :
https://brainly.com/question/6592115
#SPJ2
Can some pls help. Thank you
Answer:
39
Step-by-step explanation:
You have a supplementary angle wich is the straight line. Supplementary is equal to 180°. So you would subtract 141° from 180°. 180°-141°=39°.
f(x) = x2 – 7x- 9
g(x) = -5x – 11
Find: (g•f)(x)
Answer:
[tex](gof)(x) = -5 {x}^{2} + 35x + 34[/tex]
Step-by-step explanation:
[tex](gof)(x) = g(f(x)) \\ = - 5( {x}^{2} - 7x - 9) - 11 \\ = - 5 {x}^{2} + 35x + 45 - 11 \\ = - 5 {x}^{2} + 35x + 34[/tex]
I hope I helped you^_^
1. Molly had 995 ants in her ant farm. She lost 267 of the ants. How many ants does she have now? Answer Statement: Molly has 723 ants left Equation and Strip Diagram: 995-267-728 Strategy and Solution: 728 99115 267 728
Answer:
idj
Step-by-step explanation:
getting points
Answer:
723 IT IS BECAUSE IF U TAKE OUT 267 FROM 995 THEN THE NUMBER LEFT WILL BE 723
HOPE IT HELPS
solved for x?
ax - b = x
-
Answer:
ax - b = x
+b +b
ax/a = c/a
d=x
Step-by-step explanation:
There are no numbers so I can't give a specific answer so I substituted numbers with letters :)
A group of students left school at 8:00 am on a field trip to a science museum 90 miles away. Which best the average speed of the bus if they arrived at 10:00
Answer:
45 mph
Step-by-step explanation:
90 / 2 = 45 mph
3600 divided by 1760?
Answer:
[tex]3600 \div 1760 \\ \\ = 2.04545[/tex]
Cries In didn’t pay attention in class in my lower grades
If BAC = ADB = 90. The value of x is
Some help PLZ make sure it’s right will mark brainiest:)
Answer:
y= 7/9x -17/9
Step-by-step explanation:
(5,2) (-4,-5)
slope intercept of a line is
y = mx +b
m = y2-y1/ x2-x1
= -5-2/ -4-5 = -7/-9
=7/9
if the line is passing through (5,2)
2= 7/9(5)+ b
2=35/9 +b
b = 2-35/9
b= -17/9
y= 7/9x -17/9
DUE AT 4 PLEASE HELP!
Solve for x: 15x²=x+2
hope its helps u
Explanation
please someone help me. Im giving brainliest!
10x-45-4x-2
6x- 47= 1
6x=1+47
6x=48
x=8
PLEASE MARK BRAINLIEST
Answer:
10x-45-4x-2
6x- 47= 1
6x=1+47
6x=48
x=8
GCF of 28, 48, and 64
Answer:
14
Step-by-step explanation:
Find the area of a sector of a circle for a 50 Degree angle with a diameter of 200 feet,
O 1.090.83 feet
O 5.363.32 feet
4.363.32 feet
O 17.453.30 feet
Answer:
17,453.30 feet
Step-by-step explanation:
