Answers
Answer:
21
Step-by-step explanation:
straight line = 180 degrees ( H,D,R)
180 = 7x - 3 + 2x - 6
180 = 7x + 2x - 3 - 6 (group the same type number together)
180 = 9x -9 (simplify the numbers)
189 = 9x (+9)
21 = x (divide by 9)
Related Questions
I need this asap ty:p
Which of the following equations are equations of a direct variation? Choose all that apply.
(a) x=−2y
(b) x+2y=12
(c) 3x−2y=0
(d) 5x^2+y=0
(e) y =0.3x +1.6
(f) y−2=x
Answers
Answer:
(a) x = -2y
(c) 3x - 2y = 0
Step-by-step explanation:
You can tell if an equation is a direct variation equation if it can be written in the format y = kx.
Note that there is no addition and subtraction in this equation.
Let's put these equations in the form y = kx.
(a) x = -2y
y = x/-2 → y = -1/2x This is equivalent to multiplying x by -1/2, so this is an example of direct variation.(b) x + 2y = 12
2y = 12 - x y = 6 - 1/2x This is not in the form y = kx since we are adding 6 to -1/2x. Therefore, this is NOT an example of direct variation.(c) 3x - 2y = 0
-2y = -3x y = 3/2x This follows the format of y = kx, so it is an example of direct variation.(d) 5x² + y = 0
y = -5x²This is not in the form of y = kx, so it is NOT an example of direct variation.(e) y = 0.3x + 1.6
1.6 is being added to 0.3x, so it is NOT an example of direct variation.(f) y - 2 = x
y = x + 2 2 is being added to x, so it is NOT an example of direct variation.The following equations are examples of direct variation:
x = -2y 3x - 2y = 0Answer:
(a) x = -2y
(c) 3x - 2y = 0
Step-by-step explanation:
You can tell if an equation is a direct variation equation if it can be written in the format y = kx.
Note that there is no addition and subtraction in this equation.
Let's put these equations in the form y = kx.
(a) x = -2y
y = x/-2 → y = -1/2x
This is equivalent to multiplying x by -1/2, so this is an example of direct variation.
(b) x + 2y = 12
2y = 12 - x
y = 6 - 1/2x
This is not in the form y = kx since we are adding 6 to -1/2x. Therefore, this is NOT an example of direct variation.
(c) 3x - 2y = 0
-2y = -3x
y = 3/2x
This follows the format of y = kx, so it is an example of direct variation.
(d) 5x² + y = 0
y = -5x²
This is not in the form of y = kx, so it is NOT an example of direct variation.
(e) y = 0.3x + 1.6
1.6 is being added to 0.3x, so it is NOT an example of direct variation.
(f) y - 2 = x
y = x + 2
2 is being added to x, so it is NOT an example of direct variation.
The following equations are examples of direct variation:
x = -2y
3x - 2y = 0
identify the coefficient of the term -3gh question worth 21 points
A. -3
B. 3
C. g
D. gh
Answers
Explanation: the coefficient is the number in front of the variable(s).
Example: 4a
the coefficient of this would be 4.
Solve the equation and check the solution b - 1/4 = 3 1/2
Answers
Answer:
b = 15/4
Step-by-step explanation:
B=(7/2*2/2)+1/4
B=14+1/4=15/4
B=15/4 or 3 3/4
Below are four cube roots. The cube root of a number is the factor we multiply by itself three times to get that number. For each cube root below, state between which two numbers does the cube root lie.
∛5
∛23
∛81
∛99
Your answer:
Answers
Cube root of 23= 2.84 so between 2 and 3
Cube root of 81= 4.33 so between 4 and 5
Cube root of 99= 4.63 so between 4 and 5
Cassidy the Clown does face painting at the city carnival. She paints 8 faces every 21 minutes. Write an equation that related the number of faces she paints (y) and the time she spends painting (x)
ANSWER WITH A PICTURE ASAP
Answers
Answer:
8y=21x
Step-by-step explanation:
i'm not sure how to draw this out in a picture but the equation is above.
like the question states, Cassidy paints 8 faces in every 21 minutes. the amount of time she spends painting one face would be figured out by dividing 21 by 8 giving you 2.625minutes so i would just say around 3 minutes. so to draw a picture maybe just draw 8 faces and then circle them and say 21 minutes and then put x (to show the time she spent painting each face) under the faces in the picture and then show your work solving this.
in order to find out the ratio of time spent drawing one person's face we have to take the information given and divide the total of 21 minute span by the 8 different faces she painted in order to find how long she spends on 1 face.
hope this helps, if it did please make sure to leave a like, rate, and give me the brainliest if possible!
thanks have a great day!
A $100 pair of headphones is marked down by 10% and you also have a 20% off coupon. What is the final price, before tax?
Answers
Answer:
$72
Step-by-step explanation:
100 - 10% = 90
90 - 20% = 72
What is the value of -12/a if a = -4?
A: -3
B: -1
C: 3
D: 4
Anyone help please?
:(
Answers
Answer:
C
Step-by-step explanation:
-12
---- if a = -4
a
-12
-----
-4
= 3
Help!!!!! Giving out 15 points and a Brainliest to the person who answers correctly
Answers
Answer:
m∠TUW = 90, m∠VUR = 130, m∠VUW = 50
Step-by-step explanation:
Supplementary angles add up to 180!
help pleaseeeeeeeeeeeeeeeeeee brainliest will be coming to you
Answers
Answer:
8 in or .67
Step-by-step explanation:
Answer:
1 foot
Step-by-step explanation:
he used up 3/4 of it so 16x0.75=12 to find remaining length subtract 16-12=4
so there is a 4 foot board left then he gives 1/4 of that to his brother 4x0.25=1
so he gave his brother 1 foot of wood
can anyone solve this?
6x^3 + 4x^2 - 10x
Answers
The answer is,
[tex]2x(3x + 5)(x - 1)[/tex]
sorry if wrong.
If an object has a mass of 450 kg and is moving at 15 m/s, What is that object's momentum?
Answers
[tex]p=mv=450\mathrm{kg}\cdot15\mathrm{\frac{m}{s}}=6750\mathrm{\frac{kgm}{s}}[/tex].
Hope this helps.
dawn had 1/5 gallon of juice to divide evenly between 2 friends.How much juice should each friend receive?
Answers
Answer:
7.5 if 1/5 is 15. if not, its 0.6
Step-by-step explanation:
Answer:
1/3
Step-by-step explanation:
you have to break the fraction into 1/3 so the 2 friends can evenly get that
if its wrong look at someone else
(4 - 1+ 3/3) 15
What is the first operation you should do?
3 points
O (348/8)15
0 (4-1 4 1945
0 (4-14 8/40)
(4 - 1 + 818) x 5
Solve this expression
Answers
A bottle of shampoo costs $4 at a store. It is on sale for 25% off, and the sales tax in 5.5%. What is the sales price of the shampoo?
please ACTUALLY HELP>DONT JUST SPAM >IM BEGGING U>I WORKED HARD FOR THESE POINTS>
Answers
Answer:
1.22 dollars after sales tax
Answer:
4
Step-by-step explanation:
that is the answer
Does anyone know what the answer is?
Answers
Anyone know? Please
Answers
Answer:
B
Step-by-step explanation:
X = 3
Y= 5
rewrite the formula to find I.
A=Iw
Answers
Answer:
l=a/w
Step-by-step explanation:
In order to find I you would need to isolate it. In order to do this, you divide both sides by w and end up with a/w=l.
The vertices of a triangle are A(-1,4), B(4, 5),
and C(6, -2). After a dilation with center (0,0)
and a scale factor of 3, the vertices are translated
T(-2,5).
a. Is the image congruent to the original triangle?
Is the image similar to the original triangle?
b. What are the vertices of AA'B'C', the final
image?
Answers
Answer:
sim tem final sim amigo se eu erra mi disputa por favor
Solve the system of equations by substitution. Show all work neatly on your work page. Checking your answer is wise.
3x + 2y = 7
y = -3x +11
Answers
Answer:
15
Step-by-step explanation:
3x + 2y = 7
y = -3x +11
Find the solution to the system of equations.
Answers
PLEASE PLEASE HELP ME!!
Answers
Answer:
C. BC ≅ EC
hopes this helps :)
Answer:
Line AC is congruent to line DC (top answer)
Step-by-step explanation:
If a point is a midpoint of a line, then each half of the line (AC and DC in this case) is equal
The Park family was traveling to Disney World on vacation. They drove 487.5 miles in 7.5 hours. At this rate, how many miles did the Park family drive per
hour?
Answers
They drove 65 miles per hour
lee has 14 blueberry scones and 35 raspberry scones. He wants to make as many identical bags of scones as possible. Each bag should have an equal number of blueberry scones and an equal number of raspberry scones. What is the greatest number of bags Lee can fill?
Answers
Answer:
7 is the greatest number of bags Jason can fill.
Step-by-step explanation:
Given: Jason has 14 raspberry scones and 35 blackberry scones.
Edward deposited $8500 into a savings account 4 years ago. The simple interest rate is 5%. How much money did he earn in interest?
Answers
Step-by-step explanation:
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HELP PLEASEEEE
Tammy has a rectangular rug with an area of 21 square feet. The rug is 4 feet longer than it is wide. Which equation can be used to determine the length and the width of the rug?
A.
21 = 4w^2
B.
21 = w^2 + 4w
C.
21 = w^2 – 4w
D.
21 = w^2 + 4
Answers
Answer:
D
Step-by-step explanation:
The equation to determine the length and width of the rug is 21 = w² + 4w.
What is Rectangle?A rectangle is a four sided figure with opposite sides are equal .
Area of a rectangle = Length x width
Given that A rectangular rug with an area of 21 square feet.
The rug is 4 feet longer than it is wide.
Let 'l " be the length of the rug and 'w' be the width of the rug
Length is 4 feet longer than its width
l = w + 4
Area is 21 square feet.
Area = l x w
21 = (w + 4)w
21 = w² + 4w
The equation to determine the length and width of the rug is 21 = w² + 4w.
So width is 3 ft
Length = w +4
length = 3+4= 7 feet
Thus Length of the rug is 7 feet
Length of rug = 7 feet
width of the rug = 4 feet
Learn more information about ' Area of rectangle ' here;
brainly.com/question/10780422
#SPJ2
PLZ HELP ME
Which expression is a factor of 16x^2-81
I will mark brainliest
A: 8x-9
B: 4x-9
C:8x-81
D: 4x-81
Answers
Answer:
B- 4x-9
Step-by-step explanation:
that's the answer
What is the relationship between sin x and cos y?
Answers
Answer:
It's graph is symmetric to the origin. Cos (x) on the other hand is an even function cos (-x) = cos (x), and its graph is symmetric to the y-axis. Notice also that the graphs are exactly the same shape but horizontally shifted /2 units. They are related by: sin (x) = cos (x - /2) and cos (x) = sin (x + /2).
Step-by-step explanation:
what is 8=3a-4? please answer if you know it because the homework is for tomorrow.
Answers
Answer: a = 4
Step-by-step explanation: Hope this helps ^^
Answer:
a=4
Step-by-step explanation:
8=3a-4
+4 +4
12=3a
12/3
a=4
Find the common ratio r for the geometric sequence and use r to find the next three terms. Enter your answer to four decimal places if necessary. 100, -40, 16, -6.4, The Common Ratio The next three terms are
Answers
Answer: The next three terms =2.56, - 1.024 and 0.4096
Step-by-step explanation:
Common Ratio of a Geometric sequence, R is calculated as
=a2/a1 = -40/100=-0.4
or a3/a2=16/ -40 = -0.4
such that the next three terms are
5th term = -6.4 x -0.4=2.56
6th term= 2.56 x -0.4 =-1.024
7TH term= -1.024 x -0.4=0.4096
i have 5 minuets please answer (image included)
Answers
Answer:
The second one !!
Step-by-step explanation:
You always start from the origin... (0, 0) !! From the bottom of that function, from the origin, you would move to the right 1, down 4 in order to get where the graph is in the picture !!
i hope this made sense... have a good day !