Answer:
368=bx
Step-by-step explanation:
just quessing hope i helped.
A teacher grades 27 tests in 3 hours How many tests can the teacher grade in 8 hours if he works at the same rate
Answer:
72 tests
Step-by-step explanation:
lets put this in a ratio
27 (tests) : 3 (hours)
now we simplify by dividing each side by 3
9:1
Now we must find 8 hours so multiply each side by 8
72:8
the teacher will grade 72 tests in 8 hours
Help me PlEEEaaaasEE :(?
Answer:
i cant read that
Step-by-step explanation:
What is the x-coordinate in the solution of the system of equations y =
=-
I and 42
9y= -402
a groundskeeper needs grass seed to cover a circular field 290 feet
Answer:
what else was in this question?
Step-by-step explanation:
need the whole picture to solve
Write out the form of the partial fraction decomposition of the function (as in this example). A) x4 − 2x3 + x2 + 2x − 1/x2 − 2x + 1B) x2 - 1/x3 + x2 + x
Answer:
A. [tex]\mathbf{\dfrac{x^4-2x^3+x^2+2x-1}{x^2-2x+1 }= x^2 + \dfrac{A}{x-1}+ \dfrac{B}{(x-1)^2}}[/tex]
B. [tex]\mathbf{\dfrac{x^2-1}{x(x^2+x+1)} = \dfrac{A}{x}+ \dfrac{Bx+C}{x^2 +x+1}}[/tex]
Step-by-step explanation:
A.
Given that:
[tex]\dfrac{x^4 -2x^3 +x^2+2x -1}{x^3 -2x +1}[/tex]
[tex]\dfrac{x^4 -2x^3 +x^2+2x -1}{x^3 -2x +1} =\dfrac{(x^4 -2x^3+x^2) +(2x-1)}{x^3 -2x +1}[/tex]
[tex]=\dfrac{(x^4 -2x^3+x^2)}{x^3 -2x +1} + \dfrac{(2x-1)}{x^3 -2x +1}[/tex]
[tex]= \dfrac{x^2(x^2-2x+1)}{x^2-2x+1}+ \dfrac{2x-1}{(x-1)^2}[/tex]
[tex]\dfrac{x^4-2x^3+x^2+2x-1}{x^2-2x+1 }= x^2 + \dfrac{2x-1}{(x-1)^2}---(1)[/tex]
Further, the partial fraction decomposition of [tex]\dfrac{2x-1}{(x-1)^2}[/tex] can be written as:
[tex]\dfrac{2x-1}{(x-1)^2} = \dfrac{A}{x-1}+ \dfrac{B}{(x-1)^2}[/tex]
From equation one, replacing the values; we have the partial fraction decomposition of the function to be:
[tex]\mathbf{\dfrac{x^4-2x^3+x^2+2x-1}{x^2-2x+1 }= x^2 + \dfrac{A}{x-1}+ \dfrac{B}{(x-1)^2}}[/tex]
B.
Given that:
[tex]\dfrac{x^2-1}{x^3+x^2+x}[/tex]
[tex]\dfrac{x^2-1}{x^3+x^2+x} = \dfrac{x^2-1}{x(x^2+x+1)}[/tex]
Therefore, the partial fraction of decomposition is:
[tex]\mathbf{\dfrac{x^2-1}{x(x^2+x+1)} = \dfrac{A}{x}+ \dfrac{Bx+C}{x^2 +x+1}}[/tex]
Please help me with all thank you I’ll mark Brainly please number the answers
Answer:
11. 3
12. 12 2/3 / 2 3/4 is about 12/2=6
13. Marco needs about 2 pans? (I'm sorry it gives nothing to reference off of)
14.21 17/20
15. 54 1/4
16. 4 47/72
17.51 4/5
18. 3 15/56
19.4 8/133
20.5 7/15
21. 11 2/3
22.6 26/27
23. 29 3/4
24. 5 10/43
25. 2 3/5
26. 4 7/32 or about 4 miles a day
27. about 5 times
28. you could use 18 divided by 6 to get an anwser closest to that mixed number equation. instead of 17 2/3 / 5 9/10
Bernardo is converting a fraction A/B, to a percent. Both A and B are whold numbers and not equal to zero. Which expression represents the percent?
A. (A÷B)÷100
B. (B÷A)÷100
C. 100(A÷B)
D. 100(B÷A)
Answer: I think that the answer might be C but I am not fully sure so please double check.
Have a fantastic day!
So sorry that I answered you late by the way.
Anwser:
C
Step-by-step explanation:because you multiply and you don’t multiply a upside down fraction so it is 100(A divided by B)
Help pls 2x^2+5x+3x+1
Answer: 2x^2+8x+1
Step-by-step explanation:
5x+3x=8x
Identify a and b for the hyperbola with equation. (y^2/b^2)-(x^2/a^2)=1
The value of (a) and (b) for the hyperbola are [tex]\sqrt 3[/tex] and 2
The equation of the hyperbola is given as:
[tex]\frac{y^2}{b^2} - \frac{x^2}{a^2} = 1[/tex]
The curve of the graph passes through points (0,2) and (-4,3).
So, we have:
[tex]\frac{2^2}{b^2} - \frac{0^2}{a^2} = 1[/tex] and [tex]\frac{(-4)^2}{b^2} - \frac{3^2}{a^2} = 1[/tex]
[tex]\frac{2^2}{b^2} - \frac{0^2}{a^2} = 1[/tex] becomes
[tex]\frac{4}{b^2} = 1[/tex]
Cross multiply
[tex]b^2 = 4[/tex]
Take positive square root of both sides
[tex]b = 2[/tex]
[tex]\frac{(-4)^2}{b^2} - \frac{3^2}{a^2} = 1[/tex] becomes
[tex]\frac{(-4)^2}{2^2} - \frac{3^2}{a^2} = 1[/tex]
[tex]\frac{(-4)^2}{4} - \frac{9}{a^2} = 1[/tex]
[tex]4 - \frac{9}{a^2} = 1[/tex]
Collect like terms
[tex]- \frac{9}{a^2} = -3[/tex]
Cross multiply
[tex]-3a^2 = -9[/tex]
Divide both sides by -3
[tex]a^2 = 3[/tex]
Take square roots of both sides
[tex]a = \sqrt 3[/tex]
Hence, the value of (a) and (b) for the hyperbola are [tex]\sqrt 3[/tex] and 2
Read more about hyperbolas at:
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Can somebody help me on this
-(-3 / -2)= ???? I need help pleasee
Answer: -(-3 / -2)= ?
Step-by-step explanation:
Answer:
1.5
Step-by-step explanation:
- - = +
so 3 ÷ 2 is 1.5
hope it helps!
Which statement is the lie?
Part A: Prompt: \large 4n-3
A. Three less than four times a number
B. Four times a number less than 3
C. Four times a number decreased by 3
Answer:
C. Four times a number decreased by 3
Which of the following is true about a linear function? (4 points)
A. It may curve in some parts and be horizontal in others.
B. It must cross the origin.
C. It has a constant rate of change.
D. It must contain only positive values.
Answer:
The answer is c
Step-by-step explanation:
Answer:
the answer is C. It has a constant rate of change.
Step-by-step explanation:
Which equation is parallel to
y =2/3x – 6 and passes through (9, -3)?
Answer:
y=2/3x -3
Step-by-step explanation:
y=mx+c
If the gradient(m) is the same then it's parallel.
The line passes through -3 so the y intercept(c) is -3
Answer:
Y=2/3x-9
Step-by-step explanation:
Y=mx+c
y=2/3x+c
Then substitute the coordinates
y=-3
x=9
-3=2/3*(9)+c
-3=6+c
Make c the subject by subtracting 6 from both sides.
-9=c
so the answer is
Y=2/3x-9
for his phone service, Jonh pays a monthly fee of $30, and he pays and additional $0.05 per minute of use. the least he has been charged in a month is $99.45
what are the possible number of minutes he has used his phone in a month?
use m for the numbers of minutes, and solve your inequality for m.
Answer:
m= 1395
Step-by-step explanation:
99.45 -30=
69.45
69.45 divided by 0.05
(Blank) Divided by 4 = 8 Remainder 3
Triangle PQR is similar to triangle VWX. What is the length of PR?
Answer:10.5
Step-by-step explanation:I’m smart
Answer: 10 i promise u it is.
Step-by-step explanation:
barb exercises for 22 hours each week. how many hours does she exercise in 14 weeks. use the array drawn on the grid go help multiply
Answer:
308 hours
Step-by-step explanation:
22 x 13
Which graph represents y as a function of x?
Answer:
The third picture (shown below as an attachment)
Step-by-step explanation:
This problem wants us to detect which one is a function. The definition of a function is that for every x-value you input into the function, you will get ONLY ONE y-value output. A way to check this when it’s graphed is to scan left to right (vice versa) and if there are two lines that meet at the same x-values, then it’s not a function. We can eliminate the circle graph because there are two lines that meet the x-coordinates. Like how when x is -5, the y-coordinate is both 7 and -7. This proves that for the x-coordinate -5, the y-coordinate has two y-coordinates, 7 and -7. Therefore, the circle graph is not a function. Same thing for the absolute value graph (the v-shape graph). There are two lines that overlap on the x-values. The last graph (the straight vertical line) is definitely not a function because all y-values are equal to the x-value 3, which means that multiple y-values share an x-coordinate. The third option (the correct one) is a function because there are no overlapping lines. You might say that when x is 1, there are two y-coordinates, 4 and -4. But the higher line has an open circle at 4 which means that the line doesn’t include 4. So they don’t overlap, which makes it a function. Choose the graph of option three (the attached picture).
I hope you understand.
Hope this helps and answers your question :)
The third graph represents y as a function of x.
What is a function?A relation is a function if it has only One y-value for each x-value.
The definition of a function is that for every x-value you input into the function, you will get only one y-value output.
A way to check this when it’s graphed is to scan left to right (vice versa) and if there are two lines that meet at the same x-values, then it’s not a function.
We can eliminate the circle graph because there are two lines that meet the x-coordinates.
For second graph there are two lines that overlap on the x-values.
The last graph (the straight vertical line) is definitely not a function because all y-values are equal to the x-value 3, which means that multiple y-values share an x-coordinate.
The third option (the correct one) is a function for each value of y there is one x value.
Hence, the third graph represents y as a function of x.
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Here is a system of linear equations:
equation 1: 2x + 7y = 8
equation 2: 2x + y=14
Solve this system with either the substitution method
OR the elimination method. Type your answer as an
ordered pair, then explain how you found the solution to
the system.
Answer:
X=7.5 y=-1
Step-by-step explanation:
[tex]2x + 7y = 8 \\ 2x + y = 14[/tex]
I multiplied the equation with - 1 to than I sum it with the second one to get rid of x
[tex] - 6y = 6 \\ y = - 1[/tex]
Now you put Y in on of the equation and you get x.
[tex]2x - 1 = 14 \\ 2x = 15 \\ x = 7.5[/tex]
Which parent functions have a locator/vertex point of (0,0)
Answer:
Graphing quadratic functions The shortcut to graphing the function f(x) = x2 is to start at the point (0, 0) (the origin) and mark the point, called the vertex. Note that the point (0, 0) is the vertex of the parent function only.
Step-by-step explanation:
Find the distance between (3,9)and (0,5)
(3,4)
because I know it's right trust me
Use the Distributive Property to solve the equation. 3x-5(x-4)=-9+5x+15
Answer:
I keep getting no solution
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
5(x−4)=−9+5x+15
(5)(x)+(5)(−4)=−9+5x+15(Distribute)
5x+−20=−9+5x+15
5x−20=(5x)+(−9+15)(Combine Like Terms)
5x−20=5x+6
5x−20=5x+6
Step 2: Subtract 5x from both sides.
5x−20−5x=5x+6−5x
−20=6
Step 3: Add 20 to both sides.
−20+20=6+20
0=26
Write a linear function f with f(0) = 7 and f(3) = 1.
f(x) = 0
what is the difference between 7 and 3
Answer:
4
Step-by-step explanation:
The difference between the numbers 7 and 3 is 4.
We have,
The given expression is solved by using subtraction.
The expression can be written as:
= 7 - 3
The difference between 7 and 3 is calculated by subtracting the smaller number (3) from the larger number (7):
= 7 - 3
= 4
Therefore,
The difference between the numbers 7 and 3 is 4.
Learn more about expressions here:
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Simplify the expression:
3(5s + 2) =
Answer:
The answer is =15s+6
Step-by-step explanation:
3(5s + 2)
=15s+6
Answer:
15s+6
Step-by-step explanation:
Use the distributive property and multiply the 3 to each of the terms in the second pair of parenthesis.
I NEED HELP ASAP!!PLEASE HELP ME WITH MY MATH!
Answer:
A. -2, 9
B. -2, 4
C. -8, 4
D. -8, 9
A box of cereal weighs 600 grams. How much is this weight in pounds? (Note: 1 kilogram = 2.2 pounds)
Answer:
0.882
Step-by-step explanation:
Finds out how much grams equal lbs then do 400 times the number you just found then you get your answer
Plz mark brainliest
What is 24 + x = 29?
Answer:
The answer is x=5
Step-by-step explanation:
hope this helps
Given:24 + x = 29
Solutions: To find the x subtract both side by 24.
24-24 + x = 29-24
x=5
Answer:
x=5
Step-by-step explanation:
24+x=29 - subtract 24 from both sides to isolate variable
x=5
select the appropriate linear model for the scatter plot
The equation that best suits the scatter plot is y = x - 0.5.
A straight line graph has the general equation; y = mx + c Where; m = slope, c = y- intercept. We now have to examine each of the equations as written so as to determine which of the equations that best suits the scatter plot as shown.
First of all, we can see that the line did not start from origin. Looking at the graph very closely, we can conclude that the equation that best suits the scatter plot is y = x - 0.5.
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