Answer:
the 3rd choice, 10x + 5, looks good
Step-by-step explanation:
a coefficient is the number in front of a variable , so that's 10
a constant is a number w/o a variable ... so that's 5
I believe that the answer is 10x + 5.
Coefficents are also know as "multipliers". They pair with variables (in this case, that is x). Constants are simply numbers on their own.
Hope that makes sense.
Help how do I do this?
Answer:
THE ANSWER IS 9
bc you will distribute 2x+16-2 18÷2 =9
A recipe requires 8 cups of baking powder. You can only measure using 2/3 cups.
Answer:
sorry to tell you this but you will be measuring for a while
Step-by-step explanation:
go to walmart get a 2/3 measuring cup and measure out 8 cups i guess. get me some chips while your there plss. <3
discounts mark up and mark downs! Due IN 10 mins!! PLZ HELP
2. $199 ring; 10% discount
Answer:
19.9 is the answer
Step-by-step explanation:
10 percent of 199 is 19.9
34. Find the equation of the straight line which
.
passes through the point (3,1) and makes
intercepts on the axes the difference of
whose length is 4.
Answer:
The equation of the straight line passing through the point ( 3,1 )
[tex]\frac{x}{2} + \frac{y}{-2} = 1[/tex]
Step-by-step explanation:
Step(i):-
The equation of the straight line passing through the point ( 3,1 )
[tex]\frac{x}{a} + \frac{y}{b} = 1[/tex]
[tex]\frac{3}{a} + \frac{1}{b} = 1[/tex]
3b + a = ab ...(i)
Given the difference of length is 4
a-b = 4
b = a - 4 ...(ii)
Step(ii):-
substitute b=a-4 in equation (i) , we get
3( a-4 ) + a = a (a-4)
3a - 12+ a = - 4 a + a²
a² - 8 a + 12 =0
Find the factors of 'a'
a² - 6a -2a +12 =0
a (a-6) -2(a-6) =0
a =2 and a=6
we know that a-b =4
put a = 2
2 - b =4
b = -2
The equation of the straight line whose intercepts on the axes
[tex]\frac{x}{a} + \frac{y}{b} = 1[/tex]
[tex]\frac{x}{2} + \frac{y}{-2} = 1[/tex]
The equation of the straight line
[tex]\frac{x}{2} + \frac{y}{-2} = 1[/tex]
Verification:-
The equation of the straight line passing through the point (3,1)
[tex]\frac{x}{2} + \frac{y}{-2} = 1[/tex]
Put x =3 and y=1
[tex]\frac{3}{2} + \frac{1}{-2} = 1\\\frac{2}{2} =1\\[/tex]
1 = 1
∴ The point (3,1) is satisfies the equation
Alfredo gives an equal number of marbles to 6 friends. Which could be the total number of marbles he gave to his friends?
Group of answer choices
15
60
56
33
I believe it would be 60, 60 is the only multiple for 6.
will give brainly
show work
23-5•4-2(6-1)
Answer:-7
Step-by-step explanation:
Answer:
-7
Step-by-step explanation:
so you have to do PEMDAS
first parenthesis 6-1 is 5
then multiplication 5x4 is 20
the subtraction 23-20-2(5)
2x5=10
23-20=3
3-10=-7
how to solve using Substitution or Elimination??? Help!!!
y=3x-1
y=2x+2
Answer:
x=3
y=8
Step-by-step explanation:
the given equations are y=3x-1 --------(1)
and y=2x+2---------(2)
Using substitution method,
and solving y=3x-1
y+1=3x
or y+1/3 =x ------(3)
Putting the value of x= y + 1 / 3 in equation 2
y= 2x+2
or, y = 2 ( y + 1/3) +2
or, y= 2y + 2 / 3 +2
or, y = 2y + 2 + 6 // 3 ( Taking LCM)
Or, 3 y = 2y + 2 + 6 ( the denominator gets multiplied to y)
OR, 3 Y - 2Y =6 PLUS 2
or y = 8
therefore, y=8
now substituting the value of y=8 in equation (3)
y + 1 /3 = x
or ,,, 8 plus 1 by 3 =x
or,,,,, 9 by 3 =x
Therefore, x is 3
What is f(3) if f(x)= -4x+1
Answer:
I'm pretty sure its -11
Answer:
f(3) = -11
Step-by-step explanation:
Substitute 3 in wherever you see an x:
f(3) = -4 * 3 + 1
f(3) = -12 + 1
f(3) = -11
What is the decimal multiplier to increase by 81%
Answer:
multiply by 1.81
Step-by-step explanation:
All the questions are similar but I need help
2. Explain and correct the error made by a student who simplified this expression.
–2x + 7x + 8
(–2 + 7 + 8)x
13x
3. Explain and correct the error made by a student who simplified this expression.
–2 + 7(x + 8)
5(x + 8)
5x + 40
4. Explain and correct the error made by a student who simplified this expression.
–2x – 4x + 8y – y
(–2 – 4)x + (8 – 0)y
–6x + 8y
Answer:
Step-by-step explanation:
2) They distributed an x out of the term with out one. that is the 8
so the expression should be 5x +8
3) They didn't follow order of operations and took 2 away from the 7 before they distributed the 7 :O very bad of them
the expression should be 7x + 54
4) They distributed out the y but didn't leave a 1 so the problem lost a term.
the expression should be -6x + 7y
I need these 2 questions please!!! And if you can do the bottom one I’ll give you brainliest
Answer:
for the first one the answer is .50 . for the second one you put for every .50 there is 3.50 and for number 3 for 7 is 49
The coordinate plane shows Line A B.
What is the length of the line segment?
Answer:
13
Step-by-step explanation:
The length of the line segment is 13 unit.
What is a line segment?A line segment is a straight line with finite length, and thus, have to endpoints(points on either ends).
If the ray lies onto the considered line segment(overlapping), then it can be said belonging to the considered line segment.
(line segment has 2 fixed ends, whereas a ray has one end only, other end is not fixed)
We are given that coordinate plane shows Line A B.
We need to find the length of the line segment.
We can see that the graph has 1 unit equal to 1 cm.
Then the coordinate for Point B is (5, 13)
The length of the line segment is 13 unit.
Learn more about line segment here:
https://brainly.com/question/14186383
#SPJ2
The table represents a Linear function, what is the slope of the function?
Answer:
m = 3
Step-by-step explanation:
Pick two points from the table.
(-1, 1) and (1, 7)
Apply the slope formula.
[tex]m=\frac{7-1}{1+1}=\frac{6}{2}=\boxed{3}[/tex]
Hope this helps.
x = - 5
x ^ 2 + y ^ 2 = 25
show work also
Step-by-step explanation:
Since x is equal to -5, you would need to substitute that value for x in the equation x^2 + y^2 = 25. So....
-5^2 + y^2 = 25
(-5)*(-5) + y^2 = 25
25 + y^2 = 25
y^2 +25 - 25 = 25 - 25
y^2 = 0
y = 0
(x, y) = (-5, 0)
To check the answer....
x^2 + y^2 = 25
-5^2 + 0^2 = 25
25 + 0 = 25
25 = 25
The answer should be correct, if not i am extremely sorry
Hope this helps!!!
a store has 5 cans of soup for 15 dollars.How much is per can
Answer:
3 dollars
Step-by-step explanation:
5 cans= 15 dollars
1 can = 15/5= 3
3 dollars
claire mixes 2 1/2 cups of water with 1/3 cup of orange juice concentrate. Han mixes 1 2/3 cups of water with 1/4 cup of orange juice concentrate. whose orange juice mixture tastes stronger? explain and show your reasoning
Answer:
Han's mixture tastes stronger, because...
Han's uses 6 2/3 cups of water for every 1 cup of orange juice concentrate.
Clare uses 7 1/2 cups of water for every 1 cup of orange juice concentrate.
Step-by-step explanation:
Claire
Cups of water = 2 1/2 cups
Cups of orange juice = 1/3
Cups of water for every cup of orange juice = 2 1/2 ÷ 1/3
= 5/2 × 3/1
= 15/2
= 7 1/2
Han:
Cups of water = 1 2/3 cups
Cups of orange juice = 1/4 cups
Cups of water for every cup of orange juice = 1 2/3 ÷ 1/4
= 5/3 × 4/1
= 20/3
= 6 2/3
They all have to be simplified
Find the third side in simplest radical form:
Answer:
9 1/2
Step-by-step explanation:
i think think this may be the anwser
Solve each system using substitution or elimination. Show all required work. Y=-5x^2+2x-3 Y=-3x-3
Step-by-step explanation:
y = -5x² + 2x - 3 and y = -3x - 3.
=> -5x² + 2x - 3 = -3x - 3
=> 5x² - 5x = 0
=> 5x(x - 1) = 0
=> x = 0 or x = 1.
When x = 0, y = -3(0) - 3 = -3.
When x = 1, y = -3(1) - 3 = -6.
The solutions are (0,-3) and (1,-6).
Triangle GHI with vertices G(4, 1), H(5, -4), and I(2, -8) REFLECTED over the line y = x.
Answer:
[tex]G' = (1,4)[/tex]
[tex]H' = (-4,5)[/tex]
[tex]I = (-8,2)[/tex]
Step-by-step explanation:
Given
[tex]G = (4,1)[/tex]
[tex]H = (5,-4)[/tex]
[tex]I = (2,-8)[/tex]
Reflection: [tex]y = x[/tex]
Required
Determine the coordinates of G'H'I'
The following applies when a line A is reflected over [tex]y = x[/tex]
[tex]A = (x,y)[/tex]
[tex]A' = (y,x)[/tex]
i.e, we simply swap the positions of x and y
So, for:
[tex]G = (4,1)[/tex]
[tex]H = (5,-4)[/tex]
[tex]I = (2,-8)[/tex]
The reflections are:
[tex]G' = (1,4)[/tex]
[tex]H' = (-4,5)[/tex]
[tex]I = (-8,2)[/tex]
See attachment
please help
The map of a biking trail is drawn on a coordinate grid.
The trail starts at P(−2, 2) and goes to Q(5, 2).
It goes from Q to R(5, −5) and then to S(8, −5).
What is the total length (in units) of the biking trail?
10
16
17
18
Answer:
17 units
Step-by-step explanation:
Distance between points [tex](a,b)\,,\,(c,d)[/tex] is given by [tex]\sqrt{(c-a)^2+(d-b)^2}[/tex]
The trail starts at P(−2, 2) and goes to Q(5, 2).
Take [tex](a,b)=(-2,2)\,,\,(c,d)=(5,2)[/tex]
[tex]PQ=\sqrt{(5+2)^2+(2-2)^2}=\sqrt{7^2}=7[/tex] units
It goes from Q to R(5, −5)
Take [tex](a,b)=(5,2)\,,\,(c,d)=(5,-5)[/tex]
[tex]QR=\sqrt{(5-5)^2+(-5-2)^2}=\sqrt{(-7)^2}=7[/tex] units
It goes from R to S.
Take [tex](a,b)=(5,-5)\,,\,(c,d)=(8,-5)[/tex]
[tex]RS=\sqrt{(8-5)^2+(-5+5)^2}=\sqrt{3^2}=3[/tex] units
[tex]PQ+QR+RS=7+7+3=17[/tex] units
someone can answer this?
x + y + 2 and x - y - 1
2x-2y+1
Step-by-step explanation:
you will add ir subtarct like terms only
Answer:
2x - 6y
Step-by-step explanation:
u have to divide
Please help!
Sin A =
Sin C =
Cos A =
Cos C =
I’ll give brainliest!!
Answer:
sin A= 3/5
sin C= 4/5
cos A= 4/5
cos C= 3/5
Step-by-step explanation:
Please see the attached picture for the full solution.
Angles 1 and 2 are complementary and congruent. what is the measure of angle 1? 30° 45° 50° 75°
Answer:
complementary means that their measures add up to 90 degrees. since they're also congruent, they have to be the same measure.
90/2= 45 degrees which is your answer
Step-by-step explanation:
I hope this helps :)
Answer:
45 degrees
Step-by-step explanation:
i just took the test on edge
HELP PLEASE!! Algebra II
Answer:
Step-by-step explanation:
J is correct.. that function can never be less than 2
Dinesh wrote a number greater than 4699 and less than 5100 what is the number in hundreds place
Answer: choices for the number in hundreds place = 7 , 8, 9,0
Step-by-step explanation:
Given: Dinesh wrote a number greater than 4699 and less than 5100.
Numbers greater than 4699 = 4700, 4701,.....
Numbers less than 5100 = 5099, 5098 , .....
From 4700 to 5099 , the possible values for hundreds place = 7 , 8, 9,0
So, the choices for the number in hundreds place = 7 , 8, 9,0
Carol walks one mile every 24 minutes and walks 11 hours per week. If Carol takes 6 weeks off for rest throughout the year, how many miles will she walk per year? Assume there are 4 weeks per month.
Answer:
1,155 miles in a year.
Step-by-step explanation:
Assuming there are 4 weeks per month, that would mean there are a total of 48 weeks. If she takes 6 weeks off then that would leave 42 weeks. We know need to find how many minutes are in 11 hours by multiplying 11 by 60min.
11 * 60 = 660min
Now we need to divide 660min by the 24min it takes to walk 1 mile which will also give us the number of miles she walks per week
660 / 24 = 27.5 miles per week
Finally, we need to multiply the number of miles by the number of weeks in the year.
27.5 miles * 42 weeks = 1,155 miles in a year.
the sum of third and seventh terms of an AP is 20 . Find the sum of the first nine
Given:
The sum of third and seventh terms of an AP is 20.
To find:
The sum of the first nine terms.
Solution:
We have, the sum of third and seventh terms of an AP is 20.
[tex]a_3+a_7=20[/tex] ...(i)
nth term of an AP is
[tex]a_n=a+(n-1)d[/tex]
where, a is first term and d is common difference.
[tex]a_3=a+(3-1)d[/tex]
[tex]a_3=a+2d[/tex] ...(ii)
[tex]a_7=a+(7-1)d[/tex]
[tex]a_7=a+6d[/tex] ...(iii)
Using (i), (ii) and (iii), we get
[tex](a+2d)+(a+6d)=20[/tex]
[tex]2a+8d=20[/tex] ...(iv)
Now, the sum of first n terms of an AP is
[tex]S_n=\dfrac{n}{2}[2a+(n-1)d][/tex]
Put n=9 to find the sum of first 9 terms of an AP.
[tex]S_n=\dfrac{9}{2}[2a+(9-1)d][/tex]
[tex]S_n=\dfrac{9}{2}[2a+8d][/tex]
[tex]S_n=\dfrac{9}{2}[20][/tex] [Using (iv)]
[tex]S_n=\dfrac{180}{2}[/tex]
[tex]S_n=90[/tex]
Therefore, the sum of the first 9 terms is 90.
he results of a survey are shown below. In the survey, 12 students said that they would like to learn French. How many of the students surveyed would like to learn Spanish?
A drawing shows a result of a survey on a piece of paper. It shows the percent of students who like to learn different languages. It shows the percentages as Spanish, 36; French; 24; German, 18; other, 22.
Answer:
18 students
Step-by-step explanation:
Now think of it in this form. 12 students wanna learn french which is 24% and in this problem we have to find 24% of "x" is 12. The answer is obviously 50. Now go to German and you can see that 18% want to learn German. All you have to do is find 50% of 18 to get your answer which is 9. Now follow that same pattern with the Spanish one. If 36% want to learn Spanish, just find 50% of it or half of it and that could be done by doing 36 divided by 2 to get 18 as your answer. Another way to do it is my turning 50% into 0.5 and multiplying it by 36 to get your answer. As a result, your answer is 18 students want to learn Spanish.
andrew needs to call his 8 baseball teammates to make plans for a party at the end of the season if each call takes 5 minutes how much time will he spend making the calls?
A. 1/3 hour
B.40/100 hour
C.2/3 hour
D.3/4 hour
Answer:
C
Step-by-step explanation:
8*5=40 minutes
There is a total of 60 minutes.
So:
40/60 = 4/6 = 2/3