You set up 240 chairs in four rows. How many chairs are in one row?
Answer:
60
Step-by-step explanation:
4x4-8x2y2+49y4.... Resolve into factor.. Please show step by step..
Answer:
3443ye
Step-by-step explanation:
what is the answer to -x+7=8
Answer:
-x+7=8
bring the 7 over.
to do so you must subtract 7 from itself (canceling it out), then also subtract it from 8.
now you have -x=1.
divide -x by -x (or -1) which just gives you positive x.
do the same to the 1 on the other side, giving you
x= -1
Step-by-step explanation:
I sell cookies for $3 and muffins for $7. Yesterday, I made $129. I sold a total of 27 items. How many of each did I sell?
Answer:
You sold 15 cookies and 12 muffins
Step-by-step explanation:
So you're given that 1 cookie is sold for $3 and 1 muffin is sold for $7
You're also given that in total you made $129, and sold 27 items
Let's make equations from that, letting c stand for amount of cookies and m for amount of muffins.
3c + 7m = 129 (equation for amount of money made)c + m = 27 (equation for amount of items sold)Now we can use the second equation to find m:
c + m = 27
m = 27 - c
Not we can substitute m into the first equation to find c:
3c + 7m = 129
3c + 7(27-c) = 129 [substitute m for (27-c)]
3c + 189 -7c = 129 [distribute 7 into (27-c)]
-4c + 189 = 129 [combine like terms]
-4c = -60 [subtract 189 from both sides]
c = 15 [divide both sides by -4]
Now we can substitute c into the second equation to find m:
c + m = 27
15 + m = 27
m = 12
Write an equation of the line that passes through the points (-1,8) and (2,-4)
Answer:
y=mx+b
y=-4x +12 is your equation
m= yo
your slope
Step-by-step explanation:
Answer:
The equation of the line that passes through the points (-1,8) and (2,-4) is:
[tex]y=-4x+4[/tex]Step-by-step explanation:
Given the points
(-1,8)(2,-4)[tex]\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\left(x_1,\:y_1\right)=\left(-1,\:8\right),\:\left(x_2,\:y_2\right)=\left(2,\:-4\right)[/tex]
[tex]m=\frac{-4-8}{2-\left(-1\right)}[/tex]
[tex]m=-4[/tex]
As the point-slope form of the line equation is
[tex]y-y_1=m\left(x-x_1\right)[/tex]
where m is the slope.
substituting the values m = -4 and the point (-1,8)
[tex]y-\(8\right=-4\left(x-\left(-1\right)\right)[/tex]
[tex]y-8 = -4(x+1)[/tex]
Add 8 to both sides
[tex]y-8+8=-4\left(x+1\right)+8[/tex]
[tex]y=-4x+4[/tex]
Therefore, the equation of the line that passes through the points (-1,8) and (2,-4) is:
[tex]y=-4x+4[/tex]A news program invites its viewers to call in and share their position on a proposed tax increase. Ninety percent of the viewers that call in say that they will vote against the tax increase. For which population is 90\%90%90, percent a legitimate estimate of the percent of voters who will vote against the tax increase? Choose 1 answer: Choose 1 answer: (Choice A) A Only those viewers who called in (Choice B) B Only viewers of this particular episode (Choice C) C Only regular viewers of the show (Choice D) D Only those who have watched this show at some point (Choice E) E All voters
Answer:
(Choice A) Only those viewers who called in
Step-by-step explanation:
The statement tell us Ninety percent of the viewers that call in say that they will vote against the tax increase.
This explains it is option A .
Choice B is incorrect as all viewers may not have called in.
Choice C is also incorrect all regular viewers do not call in.
Choice D is incorrect calls are not received at any point at only specific time.
Choice E is incorrect because all voters again may not call in.
Which of the following statements explains how to solve for l using the formula A = lw, when A = 28 1/4 and w = 2 1/2?
1. Subtract 2 1/2 from 28 1/4.
2. Divide 2 1/2 by 28 1/4.
3. Multiply 28 1/4 by 2 1/2.
4. Divide 28 1/4 by 2 1/2.
Answer:
4
Step-by-step explanation:
you have to reverse the equation is A=lw then to get l you use l=A/w
Answer:
Divide 28 by 2
Step-by-step explanation:
When the variable of interest is multiplied by something, you undo that multiplication by dividing the equation by that something.
Here, l is multiplied by 2, so the solution is found by dividing ...
... 28 = l·2
by 2 to get ...
... 28/2 = l
That is, you divide 28 by 2 to find l.
what is true about the number of sides in any regular polygon that has at least one line of symmetry passing through two vertices
Step-by-step explanation:
A regular n-sided polygon has n lines of symmetry. If n is odd, each line of symmetry passes through only one vertex. If n is even, half the lines pass through two vertices, and half pass through none.
So if a line passes through two vertices, the polygon must have an even number of sides.
x-2(-x+9)=0
What is the value of x?
Answer:
the answer is x =6
Step-by-step explanation:
hope this helps!!
when an item is marked up by a certain percent and then marked down by the same percent, is the sale price equal to the price before the markup and markdown?
Answer: yes it is
Step-by-step explanation:
WILL MARK BRAINLIEST! PLEASE HELP!
Write 206 in base 7
Answer:
wut
Step-by-step explanation:
2 tens 1 one x 10 can you tell my the answer
Answer:
the answer is 210
Step-by-step explanation:
10×10=20+1=21, 21×10=210
Write the question, in slope-intercept form, for the line shown in the graph below:
Can some one pls help me in this math problem?
Answer:
The question, in the slope-intercept form will be:
[tex]y=1(x)+0[/tex]Step-by-step explanation:
Taking the two points on the line to find the slope
(0, 0)
(4, 4)
[tex]\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\left(x_1,\:y_1\right)=\left(0,\:0\right),\:\left(x_2,\:y_2\right)=\left(4,\:4\right)[/tex]
[tex]m=\frac{4-0}{4-0}[/tex]
[tex]m=1[/tex]
As the point-slope form is
[tex]y-y_1=m\left(x-x_1\right)[/tex]
where m is the slope
substituting the values m = 1 and the point (0, 0)
[tex]y-y_1=m\left(x-x_1\right)[/tex]
[tex]y-0=1(x-0)[/tex]
[tex]y=x[/tex]
As the slope-intercept form is
[tex]y=mx+b[/tex]
where m is the slope and b is the y-intercept
so writing the equation in slope-intercept form
[tex]y=x[/tex]
[tex]y=1(x)+0[/tex]
Therefore, the question, in the slope-intercept form will be:
[tex]y=1(x)+0[/tex]HURRY !!!!!!!!!! Which choices correctly describe reflections in the diagram? Check all that apply. On a coordinate plane, triangle A is reflected across the x-axis to form triangle D. Triangle D is reflected across the x-axis to form triangle C. Triangle D is reflected across y = x to form triangle B. The red triangle A is reflected across the x-axis onto triangle B. The red triangle A is reflected across the y-axis onto triangle D. The blue triangle D is reflected across the x-axis onto triangle C. The blue triangle D is reflected across the line y = x onto triangle B. The green triangle C is reflected across the line y = –x onto triangle A.
Answer:
I believe the answers are 2,3, and 4.
Step-by-step explanation:
You are the lucky winner because you have found this answer. Have a good day.
The red triangle A is reflected across the y-axis onto triangle D, the blue triangle D is reflected across the x-axis onto triangle C and the green triangle C is reflected across the line y = –x onto triangle A. Then the correct options are B, C, and E.
What is a transformation of a shape?A point, line, or mathematical figure can be converted in one of four ways, and each has an effect on the object's structure and/or position.
The reflection does not change the shape and size of the geometry. But flipped the image.
Let's check all the options. Then we have
A.The red triangle A is reflected across the x-axis onto triangle B. Incorrect, because the orientation is different.
B.The red triangle A is reflected across the y-axis onto triangle D. Correct.
C.The blue triangle D is reflected across the x-axis onto triangle C. Correct.
D.The blue triangle D is reflected across the line y = x onto triangle B. Correct, because the orientation is different.
E.The green triangle C is reflected across the line y = –x onto triangle A. Correct.
The red triangle A is reflected across the y-axis onto triangle D, the blue triangle D is reflected across the x-axis onto triangle C and the green triangle C is reflected across the line y = –x onto triangle A. Then the correct options are B, C, and E.
More about the transformation of the shape link is given below.
https://brainly.com/question/27224339
#SPJ6
The missing diagram is given below.
IF U HELP ME THANK YOU , I need help on this
Answer: <1 is 46
Step-by-step explanation: If 4x+10+2x-16=180 becuase they are same sided interior angle they have to equal 180. and if you do the process you get X=31 and if you plug it in you get <1=46 and to check it you have to plug it in the other and add thoses two up and see if you get 180. which it does.
Isolate a variable in each system. You may need to use the distributive property to simplify the equation. Show your work.
3x - 4y = -7
4x + 3y = 24
Answer:
1. x=-7/3 + 4y/3
2. x= 6- 3y/4
Step-by-step explanation:
to isolate the variable you simply solve for it by moving all the terms which don't contain x to the right by multiplying, subtracting, adding, and dividing
How can Ari simplify the following expression? StartFraction 5 Over a minus 3 EndFraction minus 4 divided by 2 + StartFraction 1 Over a minus 3 EndFraction Write the numerator and denominator with a common denominator. Then divide the numerator by the denominator. To do this, multiply the numerator by the reciprocal of the denominator. Write the numerator and denominator with a common denominator. Then divide the numerator by the denominator. To do this, multiply the numerators and multiply the denominators. Divide the numerator and the denominator by a – 3. Then divide the numerator by the denominator. Divide the numerator and the denominator by a – 3. Then simplify the numerator and simplify the denominator.
Answer:
the answer is a
Write the numerator and denominator with a common denominator. Then divide the numerator by the denominator. To do this, multiply the numerator by the reciprocal of the denominator.
Step-by-step explanation:
Simplifying an expression involves breaking down the expression.
The true statement is: (a) Write the numerator and denominator with a common denominator. Then divide the numerator by the denominator. To do this, multiply the numerator by the reciprocal of the denominator.
The expression is given as:
[tex]\mathbf{\frac{\frac{5}{a -3} - 4}{ 2 + \frac{1}{a - 3}}}[/tex]
Start by writing the numerator and the denominator, with a common denominator
[tex]\mathbf{\frac{\frac{5}{a -3} - 4}{ 2 + \frac{1}{a - 3}} = \frac{\frac{5 -4a +12}{a - 3}}{\frac{2a - 6 + 1}{a - 3}}}[/tex]
Cancel out the denominators of both fractions (by dividing the numerators)
[tex]\mathbf{\frac{\frac{5}{a -3} - 4}{ 2 + \frac{1}{a - 3}} = \frac{5 -4a +12}{2a - 6 + 1}}[/tex]
So, we have:
[tex]\mathbf{\frac{\frac{5}{a -3} - 4}{ 2 + \frac{1}{a - 3}} = \frac{17 -4a }{2a - 5}}[/tex]
Hence, the correct option is (a).
Read more about fraction division at:
https://brainly.com/question/17205173
how do I graph f(x) = 1/4(x-1)2 - 3
Which angles are coterminal angles for an angle of 125°?
Answer:
125° = 25/36 π ≈ 0.694 π
Positive coterminal angles: 485°, 845°, 1205°, 1565°
Negative coterminal angles: -235°, -595°, -955°, -1315°
an event is called__ if the probability it will occur equals 0. help me please, i beg you
Answer:
impossible
Step-by-step explanation:
If there is no chance of something happening, then it is...You type 282 words in 6 minutes.How many words do you type in one minute?
Answer:
47
Step-by-step explanation:
282 words in 6 minutes
? in 1 minutes
282÷6=47....
47×6=282
Find the length of the shortest side ( rounded to 2DP) if the area of the rectangle is 28m^2
Answer:
4.39 to 2DP.
Step-by-step explanation:
x * (x - 2) = 28
x^2 - 2x = 28
Solving by completing the square:
(x - 1)^2 - 1 = 28
(x - 1)^2 = 29
x = +/-√29 + 1
x = 6.38516, -4.38516
x must be positive so it = 6.38516.
The shortest side = x - 2 = 4.385.
An industrial machine is able to make 35 pens in 5 seconds. What is the rate made per second?
Answer:7 pens per second
Step-by-step explanation: 35/5=7
Answer: 7 Pens Per second
Step-by-step explanation:
35/5 = 7
how do i solve for x
Answer:
x=-27
Step-by-step explanation:
4/7x * 14x = 1/14(14x) + 5/2x(14x)
Multiply both sides by 14x
8 = x+35
-27 = x
Help plz:))) I’ll mark u brainliest
ASAP!!!
Answer: x=20 degrees
Step-by-step explanation:
Base angle theorem makes angle 2 congruent to the 30 degrees angle.
Make an equation: 2x-10=30
Solve it to get x= 20 degrees.
graph the line
y+5=1/4(x-3)
Answer:
Graph
Step-by-step explanation:
There is a castle with a million dollars for anyone who can get to it first. The castle is surrounded by a moat that is square (4 equal sides) and the moat is 12ft wide at all areas. You have two 10' wooden planks, but no nails, rope, clothing or any other materials or means to put the planks together. Also, you cannot toss one to the other side, and lay one in on the shoreline and walk down into the moat and back up to the other side. think of the moat as charged with a bazillion volts of electricity. Can you get to the million dollars and the castle?
Answer:
12ft
Step-by-step explanation:
Help me plz nd ty:)
is -13 an integer
Answer:
yes it is an integer
Step-by-step explanation:
please mark as brainliest
Answer:
YES -13 is an integerStep-by-step explanation:
It is an integer because integers are whole numbers. This means that it doesn't include decimals, fractions, and irrational numbers. Even though not all negative numbers are integers, this one is, and that is because it is not a decimal, fraction, or irrational number.
Hope this helps! ^^
Is 1.64 rational or irrational?
Answer:
irrational, I am not that sure tho
Is (x+3) a factor of P(x)=2X³+5X²+X+10 explain
Answer:
Doubt it because the answer has to be a factor of 10 but I may be wrong.