Can someone help me I’m doing a khan academy and need help ASAP marking brainliest
Answers
Answer:
x = 180 - 89 = 91
Step-by-step explanation:
Related Questions
Determine if Set of Points is a Function which set of ordered pairs represents a function: {(3,6),(3,1),(9,0),(2,2)}, {(2,−5),(−3,6),(−1,−8),(−3,−4)}, {(4,−7),(−2,−1),(−7,4),(9,−1)},{(3,8),(−2,−9),(1,4),(1,9)}
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A function is a relation in which no two ordered pairs have the same input (or x-values) and different outputs (y-values).
Whenever you're trying to determine whether a given relation is a function, observe whether each first element (or input) correspond with EXACTLY ONE second element (or output).
Out of all the given options, the relation, {(−2,−1),(−7,4),(9,−1)} each x-coordinate corresponds exactly to one y-coordinate.
Therefore, the correct answer is {(−2,−1),(−7,4),(9,−1)} .
BRAINLIEST PLUS 50 POINTS
Answers
Answer:
solve for m
{ m = [tex]\frac{y- y1}{x x1}[/tex], x ≠ [tex]x_{1}[/tex]
{m ∈ R, y = [tex]y_{1}[/tex] and x = [tex]x_{1}[/tex]
solve for x
{ x =[tex]\frac{y+mx_{1} - y_{1} }{m}[/tex], m ≠ 0
{ x ∈ R, y = [tex]y_{1}[/tex] and m = 0
Step-by-step explanation:
solve for m
{ m = , x ≠
{m ∈ R, y = and x =
solve for x
{ x =, m ≠ 0
{ x ∈ R, y = and m = 0
Step-by-step explanation:
1. Which of the following is the slope-intercept form of 6x + 2y = 28?
y=-3:2 – 14
y=-3x + 14
y= 3.c + 14
y= 3x - 14
Answers
Answer:
2nd option
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c
Given
6x + 2y = 28 ( subtract 6x from both sides )
2y = - 6x + 28 ( divide the terms by 2 )
y = - 3x + 14 ← in slope- intercept form
Answer:
y= -3x + 14
Explanation:
6x + 2y=28
2y= -6x +28
Therefore, y= -3x +14
A rectangular garden 30m by 20m consists of a lawn 28m by 18m surrounded by a path. The path is to be made of concrete to a depth of 8cm. Cal the vol of cement required in m3.
The cement is delivered in bags each holding 1cubic metre. Cal the cost if the cement costs #600 per bag and the labour charges are #2000. The company states that the cost will be approximately #70 per square metre. Is this correct?
Answers
1) The required volume of cement is 7.68 m3.
2) The costs will be $ 6,800, and the company's statement about approximate costs is correct.
1) Given that a rectangular garden 30m by 20m consists of a lawn 28m by 18m surrounded by a path, and the path is to be made of concrete to a depth of 8cm, to calculate the volume of cement required in m3 the following calculation must be performed :
8cm = 0.08mPath area x 0.08 = Volume((30 x 20) - (28 x 18)) x 0.08 = X(600 - 504) x 0.8 = X96 x 0.08 = X7.68 = XTherefore, the required volume of cement is 7.68 m3.
2) Given that the cement is delivered in bags each holding 1 cubic meter, to calculate the cost if the cement costs $ 600 per bag and the labor charges are $ 2000 and determine, if the company states that the cost will be approximately $ 70 per square meter, if this statement is correct, the following calculations should be performed:
7.68 m3 = 8 bags (8 x 600) + 2000 = X 6800 = X
Therefore, the costs will be $ 6,800.
6800/96 = 70.833
Thus, the company's statement about approximate costs is correct.
Learn more in https://brainly.com/question/16151549
what is the answer and steps to solve problem-2(b - 4) = 12
Answers
Answer:
b= -2
Step-by-step explanation:
First, you distribute.
-2(b-4) = 12
-2b + 8 = 12
Then, you combine like terms.
There are no like terms.
So, Next, you subtract 8 from each side.
-2b + 8 = 12
-2b - 8 = 12 - 8
-2b = 4
Finally, you divide each side by -2
-2b / -2
4 / -2
Answer: b = -2
Find the missing exponent. Explain your reasoning. (Please help!)
Answers
Step-by-step explanation:
The answer is as follows
p+20=14
p=-6
Drake says that 8 cups is equal to a quart because there are two cups in a pint and 4 pints in a quart. Is drake correct or not?
Answers
Answer:
drake is not correct
Step-by-step explanation:
Since we currently realize that there are 16 cups in a gallon, half-gallon milk would have 8 cups on it. So it would be a half of a gallon not a quart. Hope this helps! <3
Answer:
he is not
Step-by-step explanation:
8 cups equal 2 quarts
1 quart equal 4 cups so 2 quart equal 8
he length of a path from a panic area is 3/4 mile. the path has signs with arrows pointing to the playground every 1/8 mile. how many signs are placed along the path, assuming that there is a sign at the beginning go the path but not at the end?
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3/4 • 2 = 6/8
y=8x-x^2
y=2x
step by step solution and fast please !
Answers
Answer:
(0,0) and (2,12)
Step-by-step explanation:2x=8x-x^2
8x -2x -x^2 = 0
6x-x^2 =0 factor out common x
x(6-x)=0
x=0 or 6
y = 0 or 12
Four times the number of six
4(x+6) or 4x+6
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Answer:
the answer is 4(x+6) because you have to add 6 to x and then multiply by 4
Identify the range of the image that has been reflected over the y-axis given the domain is
(5, -3), (-2, -2), (-7, 2)
A. (5, 3), (-2, 2), (-7, -2)
B. (-5, -3), (2, -2,), (7, 2)
C. (-5, 3), (2, 2), (7, -2)
D. (5, 3), (-2, 2), (7, 2)
Answers
Range of the image whose domain is (5, -3), (-2, -2), (-7, 2) will be (-5, -3), (2, -2,), (7, 2) .
Given,
Domain of the image: (5, -3), (-2, -2), (-7, 2)
Now,
When the image is reflected over the y axis the coordinates of y axis changes but x coordinates remains the same.
So,
If domain of the image is (5, -3), (-2, -2), (-7, 2) then after reflection over y axis the range will be (-5, -3), (2, -2,), (7, 2) .
Therefore option B is correct.
Know more about transformation,
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please help fast i need it
Answers
Answer:
37/10
Step-by-step explanation:
[tex] \frac{3.7}{1} \\ \frac{37}{10} [/tex]
37 is prime, therefore it has no factors to simplify the fraction.
Please help me with this.
Answers
Please answer number 8
Answers
Step-by-step explanation:
I missed the x >= 0.
therefore only positive x (and then renamed y) are possible for the reverse function
that is easy and quick.
y = x² + 2
y - 2 = x²
x = +sqrt(y - 2)
and after trading the variable names to a regular function definition we then have
y = +sqrt(x - 2)
so, D is the right answer.
Find the equation of the line passing through the points (2, -1) and (-6, -5)
y = 2x - 5
y = -1/2 x
y = 1/2 x - 2
y = 1/2 x
Answers
Step 1: Find the slope
Point 1 = (2, -1)
Point 2 = (-6, -5)
m = (-5 - - 1) / (-6 - 2) = (-5 + 1) / (-6 - 2) = -4 / -8 = 1/2
m = 1/2
Step 2: Find the y-intercept
Slope-Intercept Form: y = mx + b
-m is the slope
-b is the y-intercept
---Plug in whichever point you want as well as the slope and solve for b
Point = (2, -1)
-1 = (1/2)(2) + b
-1 = 1 + b
b = -2
Step 3: Form the equation
Slope-Intercept Form: y = mx + b
m = 1/2
b = -2
y = 1/2x - 2
Hope this helps!! :)
Given that m || n, what must be true of the two lines? Check all that apply.
Line mand line n have different slopes.
Line m and line n have different y-intercepts.
The lines have the same steepness.
Eventually the lines will intersect.
Line m and line n lie on the same plane.
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Answer:
the answer is b, c, e I know I'm a little late
Answer:B, C, D,
Step-by-step explanation: edu 2021
.If there are 1024 relations from a set A={1,2,3,4,5} to a setB, then the number of elements in b is?
pls it is urgent!
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2
Step-by-step explanation:
Quick Question: did I do this right?
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Answer:
Yes
Step-by-step explanation:
I think it looks right I hate when teacher give you work but no telling you how to do it
please answer #’s 6-10
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Answer:
6-10 equals -3
Step-by-step explanation:
The quotient of six and one
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A quotient of a number and 6
Explanation: Quotient means that you divide something by another. Let's let n be the "number". Therefore, "a quotient of a number and 6" refers to n6 or n÷6 .
9. TOLL ROADS Some toll highways assess tolls based on where a car
entered and exited. The table shows the highway tolls for a car
entering and exiting at a variety of exits. Assume that the toll for the
reverse direction is the same.
Entered Exited Toll
Exit 8 Exit 10 $0.25
Exit 10 Exit 15 $1.00
Exit 15 Exit 18 $0.50
Exit 18 Exit 22 $0.75
a. Julio travels from Exit 8 to Exit 15. Which quantity is equivalent to
Exit 8 to Exit 15?
b. What property would you use to determine the toll?
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Answer:
Step-by-step explanation:
the volume u of gas in a propane tank is inversely proportional to a pressure p. The volume is 12cm3 while the pressure is 200kg/cm3. V when P= 150kg/cm2
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Answer:
The volume (V) of gas in a propane tank is inversely proportional to the pressure (P) on the gas. The volume is 12cm3 when the pressure on the gas is 200kg/cm2.
Please help I don’t understand
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Answer:
S = P/3
Step-by-step explanation:
Answer:
[tex] s = \frac{p}{3} [/tex]
Which is the best estimate of
28
×
0
.
64
?
A.
10
B.
15
C.
21
D.
28
Answers
Hey there!
• Original problem/equation
28 * 0.64
= 17.92
• Estimated to the nearest tens & tenths
= 30 * 0.60
= 18
The best estimation for the original equation is: 18 but we rounded to find the answer with tens & tenths place
Out of your answer choices that you have provided we can say “Option C. 21” could possibly be your answer
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
What is 823,563 rounded to the nearest ten thousand?
O 820,000
O 825,000
O 830,000
O 800,000
Answers
Answer:
d
Step-by-step explanation:
I hope this helps have a good day
Answer: 820,000
Step-by-step explanation: because 23,000 goes to 20,000
helpppppppppppppppppppppppppppppmeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Answers
Answer:
6 and 15
Step-by-step explanation:
3/8 = 6/16
32 : 24 = 20 : x
x = 24 * 20 : 32
x = 15
32/24=20/15
Does anyone know the answer to this?
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the answer is b. y-5=1/2(x+3)^2
9514 1404 393
Answer:
B. y -5 = (1/2)(x +3)^2
Step-by-step explanation:
The parent function f(x) = x^2 has been shifted left 3 and up 5, and scaled vertically. The translation of the vertex to (h, k) can be modeled by ...
y -k = a(x -h)^2
For (h, k) = (-3, 5), the form of the answer will be ...
y -5 = a(x +3)^2
Only one answer choice has that form.
_____
Additional comment
The coefficient 'a' will be positive when the parabola opens upward. This eliminates choices A and C. Choice D represents a translation of 3 units right and 5 units down—directions opposite of those shown on this graph.
Please help me solve this ASAP
Answers
24-3x=3x+12
24-6x=12
-6x=-12
X=2
Answer:
28-3x-4=2x+12+x
24-3x=3x+12
-6x=-12
x=2
Someone pls help me I will make you as brain
Answers
Answer:
k= 4
Step-by-step explanation:
g(x) is the units higher than f(x) which means k=4
Explanation: I got it right
Help me ASAP!!!!!!!!
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Answer:
A= 5
B= 33
C is ( every two squares on the graph equals one pupil.
Step-by-step explanation:
Answer:
A)5
B)33 students
C)Not many students scored highly on the test. Only about 15% got a 90 or above.