Answer:
B. 8(2-y)
Step-by-step explanation:
22-10y+2(y-3)
22-10y+2y-6
22-6-10y+2y
16-8y
Using factorisation method
8(2-y)
7x — 2y = - 7
y=7
Substitution
Answer:
x=1 and y=7
Step-by-step explanation:
7x−2y=−7;y=7
Rewrite equations:
y=7;7x−2y=−7
Step: Solve y = 7 for y:
y=7
Steps: Substitute 7 for y in 7x−2y=−7:
7x−2y=−7
7x+(−2)(7)=−7
7x−14=−7 (Simplify both sides of the equation)
7x−14+14=−7+14 (Add 14 to both sides)
7x=7
7x/7 = 7/7 (Divide both sides by 7)
x = 1
So the answer is, x=1 and y=7
PLEASE HELP!!! WILL MARK BRAINLIEST IF YOU ANSWER!!!
Answer:
-2
Step-by-step explanation:
The x coordinate goes left to right and the solution is where the two lines meet.
A jar contains the 10 glass marbles is shown below. Mr. Jeffrey will reach in and randomly select a marble. Which of the following statements is true?
Answer:
the probability of Mr Jeffrey choosing a solid marble is twice as much as choosing a stripped marbles base on my opinion
What is the approximate angle of elevation when Brendon looks up at the tower?
Answer:
20 degrees
Step-by-step explanation:
I don't know why the 30 degrees was given at point A because you don't need that.
The equation is;
Sinx= Opposite/Hypotneuse
x = Sin inverse (50/146)
= 20.02
Rounded to 20 degrees
The measure of the angle x or the value of x is 20 degrees after applying the sin ratio in a right-angle triangle DCB.
What is trigonometry?Trigonometry is a branch of mathematics that deals with the relationship between sides and angles of a right-angle triangle.
We have a right-angle triangle shown in the picture.
From the right angle triangle we can find the value of x or measure of the angle x by applying the trigonometric ratios:
As we know, the trigonometric ratio is defined as the ratio of the pair of a right-angled triangle.
Applying sin ratio in a right-angle triangle DCB:
sinx = 50/146
sinx = 0.342
x = 20.02 ≈ 20 degrees
Thus, the measure of the angle x or the value of x is 20 degrees after applying the sin ratio in a right-angle triangle DCB.
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End Behaviors
For each graph,
a.) describe the end behavior
b.) determine whether it represents an odd-degree or an even degree function
c.) state the number of real zeros
End behaviour
#1
Left:- fallRight:-Fall#2
Left:-FallRight:-FallDegree:-
Calculate the nodes
#1
2nodesEven degree function#2
No nodesReal zeros:-
Find x intercepts
#1
Zeros=4#2
1only at origin.
Please solve it this is very important.
Find the equation of straight line through the point (2,1) and making an angle of 45° with the x-axis. Show that the line passes through the point (0, -1).
Answer:
see explanation
Step-by-step explanation:
The slope m of the line = tan45° = 1
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = 1 , then
y = x + c
To find c substitute (2, 1 ) into the equation
1 = 2 + c ⇒ c = 1 - 2 = - 1
y = x - 1 ← equation of line
When x = 0 then y = 0 - 1 = - 1
The line passes through (0, - 1 )
Which set represents the same relation as the table below?
х f(x)
0. 5
4. 2
6. 9
9. 10
Answer:
A
Step-by-step explanation:
took the quiz edge 2022
BIG IDEAS MATH
#9
i
Find the value of x.
110x²
А.
20x
X =
Which equation is quadratic in form? 3x5 8x3 6 = 0 6x4 7x2 – 3 = 0 5x6 x4 12 = 0 x9 x3 – 10 = 0.
The equation that is quadratic form is 6(x + 2)²+ 8x + 2 + 1 = 0
What is a quadratic equation?A quadratic equation is an algebraic expression whose polynomial is in the order of two. The general formula for representing a quadratic equation takes the order of:
ax² + bx + c = 0From the given options, the equation that takes a quadratic form is:
6(x + 2)²+ 8x + 2 + 1 = 0
solve the brackets
6(x² + 4x + 4) + 8x + 3 = 0
6x² + 24x + 24 + 8x + 3 = 0
6x² + 32x + 27 = 0
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Answer:
a
Step-by-step explanation:
What is the correct equilibrium constant expression for this equation? 2 upper C upper o upper F subscript 2 (g) double arrow upper C upper o subscript 2 (g) plus upper C upper F subscript 4 (g). K subscript e q equals StartFraction StartBracket upper C upper o upper F subscript 2 EndBracket superscript 2 over StartBracket upper C upper O subscript 2 EndBracket StartBracket upper C upper F subscript 4 EndBracket EndFraction. K subscript e q equals StartFraction StartBracket Upper C upper o subscript 2 EndBracket StartBracket upper C upper F subscript 4 EndBracket over StartBracket upper C upper O upper f subscript 2 EndBracket superscript 2 EndFraction. K subscript e q equals StartFraction StartBracket upper C upper O subscript 2 EndBracket StartBracket upper C upper F subscript 4 EndBracket over 2 StartBracket upper C upper O upper F subscript 2 EndBracket EndFraction.
The correct equilibrium constant expression for this equation is;
[tex]\rm K_{eq}=\dfrac{(C0_2)(CF_4)}{(COF_2)^2}[/tex]
Given
Consider the equation below.
[tex]\rm {2COF_2(g)}\rightleftharpoons C0_2(g)+CF_4(g)[/tex]
What are Species?In an equilibrium constant expression, you do not include the solid substances; only gases and dissolved substances.
Equilibrium constant expression;It is the quotient of the product of the concentrations of the species on the right-hand side of the equilibrium equation, each raised to its corresponding coefficient, and the product of the concentrations of the species on the left-hand side, each raised to its corresponding coefficient.
Therefore,
The correct equilibrium constant expression for this equation is;
[tex]\rm K_{eq}=\dfrac{(C0_2)(CF_4)}{(COF_2)^2}[/tex]
Hence, the correct equilibrium constant expression for this equation is;
[tex]\rm K_{eq}=\dfrac{(C0_2)(CF_4)}{(COF_2)^2}[/tex].
To know more about Equilibrium constant click the link is given below.
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Answer:
b then c
Step-by-step explanation:
look at the image
Becca’s dog-walking business started with 1 dog. By the end of the first month, she was walking 2 additional dogs per month. The graph represents the situation. How many dogs was Becca walking by the end of the third month?
Answer:
56
Step-by-step explanation:
you have to divide it so you can get your answer.
PLEASE HELP BEFORE MIDNIGHT 2/14/22
Solve the following system of equations by graphing. y=11x-6 y=-6x+11
Answer choices:
i really need help with this one
Answer:
120º
Step-by-step explanation:
<1 has almost the same size as the angle above D. But you can see it is more pushed in just a little bit so that means that its a little but less so its 120º angles.
Hope this helps!
please <3 me! It really helps me out also :3
what is the slope of a line parallel to 5x — Зу = 18
Answer:
slope = [tex]\frac{5}{3}[/tex]
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Given
5x - 3y = 18 ( subtract 5x from both sides )
- 3y = - 5x + 18 ( divide the terms by - 3 )
y = [tex]\frac{5}{3}[/tex] x - 6 ← in slope- intercept form
with slope m = [tex]\frac{5}{3}[/tex]
Parallel lines have equal slopes , then
slope of line parallel to 5x - 3y = 18 is m = [tex]\frac{5}{3}[/tex]
Answer:
slope = 5/3
Step-by-step explanation:
5x — Зу = 18
-3y = 18 - 5x
y = ( 18 - 5x )/-3
y = 5x/3 -6
comparing with the formula: y = mx + b
where m is slope and b is y-intercept.
Here the slope is 5/3 and y-intercept is -6
Please help I need to get this done before feb 3rd
Answer:
3 is less then then it's..
7x n -3
The answer is (7 x n) - 3
The product of 7 and a number means 7 x n and 3 less than it means -3.
heres another one i give you 30 points
Answer:100
Step-by-step explanation:
which is wrong and why (x2−x1)2+(y2−y1)2−−−−−−−−−−−−−−−−−−√, (8−4)2+(12−10)2−−−−−−−−−−−−−−−−√ , (4)2+(2)2−−−−−−−−−√, = 16+4−−−−−√ .= 20−−√
IF A 2 GALLON CONTAINER OF PURE JUICE ADDED TO 3 GALLONS OF WATER WHAT PERCENT OF THE MICTURE IS PURE JUICE
Answer:
2/3 would be pure juice.
Step-by-step explanation:
This is because if you have 3/3 of juice and add 2 it would make it 2/3 or 66.66666666666% juice
"-5 increased by one-half of a number is a
maximum of 3."
Answer:
x [tex]\leq[/tex] -4
Step-by-step explanation:
5 + 1/2x [tex]\leq[/tex] 3
1/2x [tex]\leq[/tex] -2
x [tex]\leq[/tex] -4
is y=3x a linear function? explain why.
can someone please check my answer?
Answer:
this isn't an answer but i think we do the same online school HAHAHA
What is the slope of a line containing the points (2.-5) and (1,-2)?
Answer:
3
Step-by-step explanation:
If slope equals rise over run than we graph these two points and count the rise and then put it over the run. We get 3/1 and simplify to 3
What is the distance between (5,7) and (11,-1)
Answer:
10 units
Step-by-step explanation:
To find the distance between two points on a graph, we use the distance formula [tex]d=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2[/tex] where [tex]d[/tex] is the distance between points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex].
For this problem, we will identify [tex](x_1,y_1)\rightarrow(5,7)[/tex] and [tex](x_2,y_2)\rightarrow(11,-1)[/tex]:
[tex]d=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}\\\\d=\sqrt{(-1-7)^2+(11-5)^2}\\\\d=\sqrt{(-8)^2+(6)^2}\\\\d=\sqrt{64+36}\\\\d=\sqrt{100}\\\\d=10[/tex]
Therefore, the distance between [tex](5,7)[/tex] and [tex](11,-1)[/tex] is 10 units
$14.99 toy; 30% discount
What is the sales price?
Can someone please help me with this question
Jaleel wrote a book. He wants to print some copies for his friends and family. The printing company charges a one-time fee of $$$200, plus $$$2 for each printed book.
Is the number of books he prints a function of total cost?
Yes
Set the total cost toy, the number of books is x.
So, y= 200+2x
so cost is a dunction of the number of books
Hope this helps you!!!!! :D
The function C(g) = 2.75g represents the cost (in dollars) of g gallons of gasoline at a gas
station. The function g(m) 0.04m approximates the number of gallons of gasoline a vehicle uses to travel m
miles.
find C(g(m))
interpret the coefficient
HELP PLEASE
a. The value of C(g(m)) = 0.11m
b. The coeffient of C(g(m)) is the cost per mile of travel of the vehicle.
a. The function C(g(m))The value of C(g(m)) = 0.11m
Since the function C(g) = 2.75g represents the cost (in dollars) of g gallons of gasoline at a gas station and the function g(m) = 0.04m approximates the number of gallons of gasoline a vehicle uses to travel m miles.
We need to find the function C(g(m))
So, substituting g(m) = 0.04m into C(g), we have
C(g) = 2.75g
C(g(m)) = 2.75(0.04m)
C(g(m)) = 0.11m
The value of C(g(m)) = 0.11m
b. The coeffient of C(g(m))
The coeffient of C(g(m)) is the cost per mile of travel of the vehicle.
The coeffient of C(g) is cost per gallon, since C(g)/g = 2.75 cost/gallon and the coefficient of g(m) is gallon per miles since g(m)/m = 0.04 gallon per mile.
Since the coeffient of C(g(m)) = coefficient of C(g) × coefficient of g(m), then
coeffient of C(g(m)) = 2.75 dollars/gallon × 0.04 gallon/mile = 0.11 dollars/mile
So, the coeffient of C(g(m)) is the cost per mile of travel of the vehicle.
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421 divided by 18 as a mixed number
Answer:
The correct answer is in the image!
Step-by-step explanation:
Hope that helps!
[tex]\tt \large \red\leadsto\: \: \frac{421}{18} \: = \: 23 \times \frac{7}{8} \\ [/tex]
A packaging company needs to send 395 calculators to one of its branch offices. If they pack 8 calculators in each box,calculate how many boxes they will need.
Based on the information given in the equation, it should be noted that the number of boxes needed will be 50.
How to solve and equationLet the number of boxes needed be x.
From the information given, it was stated that the packaging company needs to send 395 calculators to one of its branch offices and they pack 8 calculators in each box.
Therefore, the number of boxes will be:
x = 395/8
x = 49.375
Therefore, 50 boxes will be needed.
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At the corner store, Nico bought 5 pencils for $0. 10 each and 3 pens for $0. 50 each. He used t to represent the sales tax, in dollars, that he also paid. He paid a total of $2. 12, including tax. Nico wrote this equation to represent what he paid. What errors, if any, did he make? 5(0. 10) 3(0. 50) - t = 2. 12 He should have multiplied 0. 10 by 3 instead of 5. He should have multiplied 0. 50 by 5 instead of 3. He should have added t instead of subtracting t. He should have multiplied by t instead of subtracting t.
Answer:
He should have multiplied by t instead of subtracting t.
Step-by-step explanation:
5/ .10=.50
3 x .50 = 1.50
