Answers
Answer:
[tex]y - 3 = -\dfrac{1}{4}(x - 4)[/tex]
Step-by-step explanation:
This can be solved without too much calculation
First note that the lope of the graph is negative. If you look at the graph, as x increases, y decreases so that indicates a negative slope
We can safely eliminate the last two options because the coefficient of x in both is +1/4 indicating a positive slope
That leaves the first two for consideration
We can plug in the x, y values for the given point (4, 3) which lies on the line and see which of the equations is consistent, i.e whether the LHS and RHS of the equation match
Putting y = 3 and x = 4 in the first equation y - 4 = -1/4(x - 3) gives us
3 - 4 = -1/4(4-3) ??
-1 = -1/4(1) ?
-1 = -1/4? NO
So the correct choice is the second option and we can verify that by plugging in (4, 3) into y - 3 = -1/4(x - 4)
y - 3 = 3 - 3 = 0
x - 4 = 4 - 4 = 0
So 0 = -1/4(0) = 0
which is consistent
Related Questions
The distance between City A and City B is 200 miles. A length of 1.7 feet represents this distance on a certain wall map. City C and City D are 4.25 feet apart on this map. What is the actual distance between City C and City D?
The actual distance between City C and City D is
Answers
The actual distance between City C and City D is 500 miles .
In the question ,
it is given that ,
the distance of 200 miles between City A and City B is represented by 1.7feet on the map .
the scale factor of map is 1.7 feet = 200 miles
So , 1 feet = 200/1.7 miles
= 117.64 miles
So , on map, 1 feet is 117.64 miles of actual distance .
Given that the distance between City C and City D on the map is 4.25 feet .
So , in actual
4.25 feet = 4.25*117.64
= 499.97
≈ 500
we get , 4.25 feet = 500 miles .
Therefore , The actual distance between City C and City D is 500 miles .
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14x + 1 = 10x - 19 solve for x
Answers
Answer:
x = -5
Step-by-step explanation:
The image has the explanation.
(Source: Algebra Calculator, MathPapa, I suggest using it.)
Btw, could I get Brainliest? Thanks!
i need help for this question
Answers
A right triangle is made up of two legs and one hypotenuse. The two legs meet at a 90° angle, and the hypotenuse is the right triangle's longest side and the side opposite the right angle.
What is Right triangle?A right triangle, also known as a right-angled triangle, or more formally an orthogonal triangle, formerly known as a rectangle triangle, is a triangle with one right angle or two perpendicular sides. Trigonometry is founded on the relationship between the sides and other angles of a right triangle. A right-angled triangle exists a triangle in which one of the angles stands 90 degrees. The sum of the other two angles is 90 degrees. The sides that include the right angle are perpendicular and form the triangle's base. The third side is known as the hypotenuse, and it is the longest of the three sides.Therefore,
M = 30°, O = 60°, Q = 90°. Because this is a right angle triangle with angle 90°
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the temperature at jebel jais on a particular winter morning is "-3c" at 5 am . if the temperature drops 2 degree at 6am and rises 7 degree ar 8am and again drops 1 at 9am . what is the temperature at 6am and 9am
Answers
The temperature at jebel jais at 6 a.m. will be -5 °C and the temperature at 9 a.m will be 1 °C.
What is temperature?A temperature is a unit of hotness or coldness that can be described in terms of a variety of arbitrary scales. It also indicates the direction in which heat energy will naturally flow, i.e., from a hotter body to a colder body (one at a lower temperature). Temperature is not the same as the energy of a thermodynamic system; for instance, an iceberg has a considerably higher temperature than a burning match, but it has a far larger total heat energy than a match.
According to the question,
The temperature at 5 a.m = -3 °C
The temperature at drops by 2 °C at 6 a.m = -3°C - 2 °C
The total temperature at 6 a.m = -5 °C
The temperature rises by 7 °C at 8 a.m.
The net temperature by 8 a.m = -5 °C + 7 °C = 2 °C
The temperature drops by 1 °C at 9 a.m.
The net temperature at 9 a.m = 2 °C - 1 °C = 1 °C
Hence, the temperature at 6 a.m is -5 °C and the temperature at 9 a.m is 1 °C.
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What is the gradient of a line perpendicular to a line with a gradient of 1/3?
Answers
I need some help with my math please
Answers
( 31.2u + 0.2 v ) is expression represents the perimeter of rectangle .
What is rectangle short answer?
A rectangle is a sort of quadrilateral with parallel sides that are equal to one another and four vertices that are all 90 degrees apart. Because of this, it is also known as an equiangular quadrilateral. Because the opposite sides of a rectangle are equal and parallel, it can also be referred to as a parallelogram.length of rectangle = ( 7.2u + 9.9v)
width of rectangle = ( 8.4u - 9.8v)
perimeter of rectangle = 2( l + b )
= 2 ( 7.2u + 9.9v + 8.4u - 9.8v )
= 2 ( 7.2u + 8.4u + 9.9v - 9.8v )
= 2 ( 15.6u + 0.1v )
= ( 31.2u + 0.2 v )
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What is the value of the expression? (10 1/4 +6 1/4) – (3 3/5 - 3 1/2) Enter your answer in the box as a mixed number in simplest form.
Answers
Step-by-step explanation:
Answer: 16 2/5
Step-by-step explanation:
1. 10 1/4+6 1 /4 Turn into a mixed number.
2. 41/4+25/4= 66/4 Simplify by 2= 33/2
Next question
1. 3 3/5 - 3 1/2 Turn into a mixed number
2. 18/5 - 7/2= 1/10 This is its simplest form in fraction.
3. Now that we have our answers, we are now going to subtract them.
4. 33/2- 1/10= 164/10 Simplify = 82/5 Divide it. Your remainder is 2 and our answer is 16 we keep our denominator 5 so we get: 16 2/5
Hope this helps :)
What is the value of 21 + 62 – (35 – 8) • 3?
Answers
Answer:
Step-by-step explanation:
21+62-(35-8)x3
=83−(35−8)(3)
=83−(27)(3)
=83−81
=2
Answer: 56
Step-by-step explanation:
21+62=83 -(36-8) =56
Solve the following polynomial equation by grouping and factoring. 16y3−25y=0
Answers
Answer:
[tex]\begin{gathered} \text{ Solutions for the polynomial:} \\ y=-\frac{5}{4},\text{ 0, }\frac{5}{4} \end{gathered}[/tex]Step-by-step explanation:
Use common factor to factor ''y'':
[tex]y(16y^2-25)=0[/tex]Now, factor by grouping the perfect binomial:
[tex]\begin{gathered} y(4y+5)(4y-5)=0 \\ \text{ Solve each factor independently:} \\ y=0 \\ \\ 4y+5=0 \\ y=-\frac{5}{4} \\ \\ 4y-5=0 \\ y=\frac{5}{4} \end{gathered}[/tex]an experiment consists of selecting a letter at random from the letters in the word antartica and observing the outcomes. 1. what is an appropriate sample space for this experiment? a. s
Answers
The probability of appropriate sample space for this experiment is S = { A, N, T, R, I, C}.
Given that an experiment consists of selecting a letter at random from the letters in the word ANTARCTICA and observing the outcomes.
Sample Space is also known as possible outcomes. They are the set of all possible outcomes.
Notice there would be no way to tell if the first or the second A was selected, so the outcomes are just how many unique letters are in the word.
So, the probability of appropriate sample space for this experiment is S = { A, N, T, R, I, C}.
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9(c-1) + 7c please I need this
Answers
Answer:
16c-9
Step-by-step explanation:
9(c-1)+7c
9c-9+7c
If the divisor is a decimal then you must multiply by a power of 10 to make it a whole number. Why is it important to multiply the dividend and the divisor by the same power of 10? NEED HELP ASAP WILL GIVE BRAINLIST ALSO NO SAMPLE RESPONSE
Answers
In this example, the number being divided (15) is known as the dividend, and the number being divided by (3 in this instance) is known as the divisor. The quotient is the outcome of the division. Observe how 15 x 3 = 5 is a correct equation even if you change the quotient and divisor.
Explain about the divisor and dividend?The dividend appears to the right, or underneath, the division bracket, while the divisor is the number that appears to the left, or outside, of the division bracket.
An integer that divides another integer to obtain a result is called a divisor. The result of this division, or quotient, is the dividend, which is the original number that was divided. Quotient = Dividend Divisor.
To keep the divisor and dividend in the same proportion to one another, you multiply them by the same power.
This is true for division that is not decimal.
10 / 5 = 2.
Multiplying both sides by ten results in 100/50, which is still two.
If you merely divided by 10, you would get 100/5, which is equal to 20, or 10/50, which is equal to 1/5. Both of these throw off the ratio.
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1234567890 + 0987654321
Answers
Answer:
Step-by-step explanation:
2222222211
someone help me with this, please and thank you!
Answers
1. If two angles form a linear pair, they are supplementary angles.
2. The vertical angle theorem states that vertical angles are equal.
3. The angles are vertical angles.
4. The angles are neither vertical angles nor linear pairs.
5. The angles form a linear pair.
6. The angle ∠2 is equal to 135°.
7. The angle ∠2 is equal to 95°.
8. The angle ∠2 is equal to 150°.
9. The angle ∠3 is congruent to angle ∠1.
10. The angle ∠4 is congruent to angle ∠1.
11. The angle ∠2 is congruent to angle ∠1.
12. The angles ∠1, ∠2, and ∠3 is equal to 30°, 150°, and 30°, respectively.
13. The angles ∠1, ∠2, and ∠3 is equal to 126°, 54°, and 126°, respectively.
14. The angles ∠1, ∠2, and ∠3 is equal to 135°, 45°, and 135°, respectively.
15. The value of x is 16°.
16. The value of x is 63°.
17. The value of x is 10°.
When two lines cross at a single point, a linear pair of angles is generated. If the angles are next to each other after the two lines intersect, they are considered to be linear. The total of the angles of a linear pair is always 180°.
When two lines intersect, the angles opposite each other are called vertical angles.
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1 + 1
I’ll mark brainliest if explanation included!!
Answers
Answer: 1+1=1
Step-by-step explanation: because just like in multiplication for infinity
1x1 will always equal one and if you flip the x sign it will be a plus sign so 1+1=1
I'm so smart :)
Is m and n are positive rational numbers, then m + n is positive
Answers
Yes, this statement is true, if m and n are positive rational numbers
Marco needs to buy some cat food. At the nearest store, bags of 2 food cost $9.50 How much would Marco spend on 3 bags of cat food?
Answers
Marco will have to spend $ 14.25 on 3 bags of cat food.
What is an example of a unitary method?A single or distinct unit is referred to by the word unitary. Therefore, the goal of this strategy is to establish values in reference to a single unit. The unitary technique, for instance, can be used to calculate how many kilometers a car will go on one litre of gas if it travels 44 km on two litres of fuel. The unitary approach is a strategy for problem-solving that involves first determining the value of a single unit, then multiplying that value to determine the required value.
Given:
Bags of 2 cat food cost $9.50
Therefore bags of 1 cat food cost $9.50 /2
=$ 4.75
Therefore bags of 3 cat food cost $ 4.75 x 3
= $ 14.25
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A red candle is 8 inches tall and burns at a rate of 7
10 inch per hour.
A blue candle is 6 inches tall and burns at a rate of 1
5 inch per hour.
After how many hours will both candles be the same height?
Answers
After four hours, the height of the candles will be the same.
What is a linear equation?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
The linear equation is given as,
y = mx + c
Where m is the slope of the line and c is the y-intercept of the line.
A red candle has an 8-inch height and burns at a 7/10-inch per hour rate. A 6-inch tall blue candle burns at a rate of 1/5 inch per hour.
Let x be the number of hours and y be the height.
y = -0.70x + 8 ...1
y = -0.20x + 6 ...2
From equations 1 and 2, then we have
- 0.20x + 6 = - 0.70x + 8
(0.70 - 0.20)x = 8 - 6
0.50x = 2
x = 4 hours
After four hours, the height of the candles will be the same.
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5 ( 4 ( x-3) + 5x) - 4 (3x + 1 )
Answers
Answer:
20x-72+25x-12x-4=33x-68
Step-by-step explanation:
5(4(x-3)+5x)-4(3x+1)
5(4x-12+5x)-12x-4
5(9x-12)-12x-4
45x-60-12x-4
45x-12x-60-4
33x-64
6) A ferris wheel can accommodate 45 people in 30 minutes. How many peoplecould ride the ferris wheel in 3 hours? What was that rate per hour?
Answers
The ferris well can accomodate 45 people in 30 minutes.
You need to calculate how many people you can accomodate in 3 hours.
To do so the first step is to express the 3 hours in minutes:
You know that 1 hour has 60 minutes, multiply 60 by 3 to determine how many minutes there are in 3 hours:
[tex]60\cdot3=180[/tex]3 hours equal to 180 minutes
Now you can use cross multiplication to determine the number of people that can ride the ferris well in three hours.
30 min_____45 people
180min_____x people
[tex]\begin{gathered} \frac{45}{30}=\frac{x}{180} \\ x=(\frac{45}{30})180 \\ x=270 \end{gathered}[/tex]The ferris well can accomodate 270 persons in 3 hours.
What is the solution set to the equation (2x−4)(4x−5)=0? {5/4,2}{2}{−2,−5/4}{4/5,5/4}
Answers
Since the equation is written as factors, we can equate each factor to zero in order to find the solutions of the equation:
[tex]\begin{gathered} (2x-4)(4x-5)=0\\ \\ \begin{cases}2x-4=0\rightarrow2x=4\rightarrow x=2 \\ 4x-5=0\rightarrow4x=5\rightarrow x=\frac{5}{4}{}\end{cases} \end{gathered}[/tex]The solution set is {5/4, 2}, therefore the correct option is the first one.
Using the answer choices provided, complete the proof.
Answers
Since two lines AC and BD intersect at point E
we have proved
∠DEC = ∠AEB
Proof:Given,
The straight line has a 180-degree angle.
The two lines AC and BD intersect at E.
consider AEB : BEC = 9: 11.
If BEC is x, then AEB is 9x / 11 and AEC + BEC
= 180 degree (9 x /11) + x = 180.
9x + 11x = 11 * 180
20x = 11 * 180 x = 99
BEC is 99 degrees and AEB is 81 degrees.
Because angle AED is vertically opposite angle BEC, angle AED = 99 degrees.
Because angle DEC is vertically opposite angle AEB, angle DEC equals 81 degrees.
Hence ∠DEC = ∠AEB.
Hence proved
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- If T is the midpoint of SU, what are ST, TU, and SU?
9x
6x=30
Answers
The midpoint of a segment is the point that divides the segment in half. Knowing this, we will receive:
ST = 90
TU = 90
SU = 180
Solution:A line segment's midpoint is a point that is halfway between two points. The midpoint is the same distance between the two ends.So here, if T is the midpoint of SU, we will have:
ST = TU
And we have terms for these measures:
ST = 9x
TU = 6x + 30
we can write it as:
9 x = 36 x + 30
Now solve this for x.
9x - 6 x = 30
3 x = 30
x = 30 / 3 = 10
x = 10
Now that we know what the value of x is, we can use it to solve the equations to determine the length of each segment:
ST = 9 x
= 9 × 10 = 90
TU = 6 x + 30
= 6 × 10 + 30 = 90
SU = ST + TU
= 90 + 90 = 180
ST = 90
TU = 90
SU = 180
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What does 3.8-(-7.45)=
Answers
Answer:
11.25
Step-by-step explanation:
square root of negative 108
Answers
We must evaluate the following:
[tex]\sqrt[]{-108}[/tex]We can write the argument of the square root in the following way:
[tex]undefined[/tex]what is 50 precent of 286
Answers
Answer:
143
Step-by-step explanation:
divide 286 in half because 50/100 = 1/2
Hey there!
50% of 286
= 50% * 286
= 50/100 * 286/1
= 50 ÷ 50 / 100 ÷ 50 * 286/1
= 1/2 * 286/1
= 1 * 286 / 2 * 1
= 286 / 2
= 143
Therefore, your answer should be:
143
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
Here is a diagram of a person standing next to a lorry.
The diagram shows two centimetre rulers.
The person and the lorry are drawn to the same scale.
The lorry is approximately 12.8 m in length.
Using the scale diagram, estimate the height of the person in metres.
Answers
from the diagram, we can see the Lorry is 12 cm in the model drawing, whilst in actual length is 12.8 metres, now the person on the model drawing shows as 1.5 cm, so
[tex]\begin{array}{ccll} \stackrel{cm}{model}&\stackrel{metre}{actual}\\ \cline{1-2} 12 & 12.8\\ 1.5& x \end{array} \implies \cfrac{12}{1.5}~~=~~\cfrac{12.8}{x} \\\\\\ 12x=(1.5)(12.8)\implies x=\cfrac{(1.5)(12.8)}{12}\implies x=\stackrel{metres}{1.6}[/tex]
What is the value of x?
0.2x(4.5-2.5x) = 7.5 +1.7x
Answers
Solve the equation.
x
=
−
4
−
i
√
359
5
,
−
4
+
i
√
359
5
x
=
-
4
-
i
359
5
,
-
4
+
i
359
5
A photo taken with a smartphone has 1,227,104 pixels. A photo taken with a camera has 11,943,936 pixels. Approximately how many times more pixels are in the photo taken with the camera?
Answers
Answer:
about 10 times more
Step-by-step explanation:
I popped it in a calculator and divided the 2 numbers and just rounded to the nearest whole number
can someone help me with this i will give brainelst
Answers
Answer:
280x6=1680
Step-by-step explanation:
280=0x6=0+80x6=480+200x6=1200
add all= 1680
sry i'm not used to writing the process i usually do it in my head
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next x/6=280
