help me for brainliest answer

[tex]answer \\ option \: c \\ {2x}^{2} - 6x - 7 \\ please \: see \: the \: attached \: picture \: for \\ full \: solution \\ hope \: it \: helps[/tex]

Answer:

C. 2x^2 - 6x - 7

Step-by-step explanation:

Difference means minus

(6x^2-3x-2)-(4x^2+3x+5)

=6x^2 - 3x - 2 - 4x^2 - 3x - 5

=2x^2 - 6x - 7

Good Luck!

Answer:2 in. by 3 in

Step-by-step explanation:

only my best guess

Answer:

The time it takes for the ship to travel from Earth to Pluto is 164,337 hours.

Step-by-step explanation:

The question is:

The distance from Earth to Pluto is approximately 5,751,800,000 km. How long does it take for a ship traveling at 35,000 km / h?

Solution:

The formula to compute the time (t) it takes to travel a certain distance (d) at a certain speed (s) is:

[tex]t=\frac{d}{s}[/tex]

It is provided that:

d = 5,751,800,000 km

s = 35,000 km / h

Compute the time it takes for the ship to travel from Earth to Pluto as follows:

[tex]t=\frac{d}{s}[/tex]

  [tex]=\frac{5751800000}{35000}\\\\=164337.14286\\\\\approx 164337[/tex]

Thus, the time it takes for the ship to travel from Earth to Pluto is 164337 hours.

Answer: pls mark as brainliest

2x+3y>-3

First we forget the inequality sign

2x+3y=-3

Then we solve for y

3y = -3-2x

3y=-2x-3

y=-\frac{2x}{3}-1

which is of the form y =mx +b

So here slope m is 2/3 and y intercept is -1 .

First we graph .

And then we have to check, which part need to be shaded . And for that , we take a testing point. Let it be (0,0) .

Now we plug this point in the given inequality that is 2(0)+3(0)>-3

0+0>-3

0>-3 which is true. SO we have to shade that part of the graph where point (0,0) belongs .

Step-by-step explanation:

The graph of 2x+3y>-3

First, we forget the inequality sign

2x+3y=-3

The form y =mx +b

Then we solve for y

3y = -3-2x

3y=-2x-3

[tex]y=-\frac{2x}{3}-1[/tex]

So here slope m is 2/3 and y-intercept are -1.

First, we graph.

And then we have to check, which part needs to be shaded. And for that, we take a testing point. Let it be (0,0).

Now we plug this point in the given inequality that is 2(0)+3(0)>-3

0+0>-3

0>-3 which is true.

So we have to shade that part of the graph where point (0,0) belongs.

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Sunlight gives solar energy to solar panel to convert the sunlight into the electricity. Option C is correct.

A solar cell, is an electrical device that uses the photovoltaic effect, a physical and chemical phenomena, to convert light energy directly into electricity.

According to the Law of conservation of energy . Energy can not be created nor be destroyed, it can transfer from one to another form.

Sunlight gives solar energy to solar panel to convert the sunlight into the electricity.

Hence, option C is correct.

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Answer:

30 is ans do you know hindi

Answer:

The HCF of 150 and 180 is 30

Hope this helps

Answer:

The last graph.

Hope this helps.

I'm assuming the equation should be [tex]f(x) = 2(3)^x[/tex]

If so, then plug in x = 1 to find that

[tex]f(x) = 2(3)^x\\\\f(1) = 2(3)^1\\\\f(1) = 2(3)\\\\f(1) = 6\\\\[/tex]

Showing the point (x,y) = (1,6) is on the curve. Only choice A reflects this. So choice A is the answer.

Choices B,C, and D can be ruled out. For instance, with choice B, plugging in x = 2 leads us to get

[tex]f(x) = 2(3)^x\\\\f(2) = 2(3)^2\\\\f(2) = 2(9)\\\\f(2) = 18\\\\[/tex]

Indicating that (2,18) is on the curve instead of (2,12). This shows choice B is not a a valid answer. Similar situations will happen with C and D.

Answer:

D

Step-by-step explanation:

The difference in the x is 6

The difference in the y is -4

-4/6 = -2/3

Answer:

-2/3

Step-by-step explanation:

The slope of a line when given two points is found by

m= (y2-y1)/(x2-x1)

  = (-1 -3)/(2 - -4)

   = (-4)/(2+4)

   = -4/6

-2/3

Answer:

50 pounds

Step-by-step explanation:

This situation can be expressed as:

11x-30=5x+30

6x-30=30

6x=60

x=10

5x=50

Paul originally had 50 pounds. Hope this helps!

Answer:

y -3 = -4(x+2)

Step-by-step explanation:

The point slope form of a line is

(y-y1) = m(x-x1)

where m is the slope and (x1,y1) is a point on the line

y -3 = -4(x- -2)

y -3 = -4(x+2)

Answer:

the k value is 6

Step-by-step explanation:

The form of a qruadratic equation is f(x)=a(x-h)^2 + k, so by comparing this to the function f(x)=-18(x-2)^2 + 6  we can see that K = 6, a = -18,and h = 2.

Answer:

$7.5

40 kg

Step-by-step explanation:

Expenses= $300 per week

120x= 300+600

120x=900

x= 900/120= $7.5 per kg

300/7.5= 40 kg to be sold to cover weekly expenses

Answer:

2400 pages

Step-by-step explanation:

Printer 1 :  50+ 1.50/30 x  where x is the number of pages

Printer 2 :  10 + 2/30 x where x is the number of pages

Set them equal

50+ 1.50/30 x  = 10 + 2/30 x

50 + 1/20x = 10 +1/15 x

Subtract 1/20x from each side

50 + 1/20x -1/20x= 10 +1/15 x-1/20x

50 = 10 +1/15x - 1/20x

Subtract 10 from each side

40 = 1/15x - 1/20x

Get a common denominator

40 = 4/60x - 3/60x

40 =1/60x

Multiply by 60

40 *60 = 1/60x *60

2400 =x

Answer:

2400 pages

Step-by-step explanation:

First, let's make equations for the daily cost of the first printing press, with y being the total daily cost, and x being the total number of pages printed.

y=0.05x+50

Now, let's make an equation for the total daily cost of the second printing press.

y=(2/30)x+10

Since both equations are equal to y, let's use the substitution method and set them equal to each other.

0.05x+50=(2/30)x+10

Let's substitute 80 for x into both equations and see if we get a true statement.

0.05(80)+50=(2/30)(80)+10

4+50=16/3+10

54=46/3 X

Since this is a false statement, 80 pages cannot be the solution.

Now, let's try 1500 for x.

0.05(1500)+50=(2/30)(1500)+10

75+50=100+10

125=110 X

Since this is a false statement, 1500 pages cannot be the solution.

Now, let's try 2400 for x.

0.05(2400)+50=(2/30)(2400)+10

120+50=160+10

170=170

Since this is a true statement, 2400 pages is the correct solution, and it will lead to a daily cost of $170.

Answer:

The equation that has a vertex in (0, -5) is the first one.

Step-by-step explanation:

A standard form second degree equation is given by the following expression:

[tex]y(x) = a*x^2 + b*x + c[/tex]

For which the vertex coordinates can be calculated by:

[tex]x_{vertex} = -\frac{b}{2*a}[/tex]

While "y" for the vertex can be found by applying this coordinate on the expression. Using this knowledge in each equation gives us:

1. [tex]y(x) = x^2 - 5[/tex]

[tex]a = 1\\b = 0\\c = -5[/tex]

Therefore the vertex coordinate is:

[tex]x_{vertex} = -\frac{b}{2*a} = -\frac{0}{2*1} = 0[/tex]

[tex]y_{vertex} = 0^2 - 5 = -5[/tex]

This parabola has a vertex in (0,-5).

2. [tex]y(x) = x^2 + 5[/tex]

[tex]a = 1\\b = 0\\c = 5[/tex]

Therefore the vertex coordinate is:

[tex]x_{vertex} = -\frac{b}{2*a} = -\frac{0}{2*1} = 0[/tex]

[tex]y_{vertex} = 0^2 + 5 = 5[/tex]

This parabola has a vertex in (0,5).

3. [tex]y(x) =(x+ 5)^2 = x^2 + 10*x + 25[/tex]

[tex]a = 1\\b = 10\\c = 25[/tex]

Therefore the vertex coordinate is:

[tex]x_{vertex} = -\frac{b}{2*a} = -\frac{10}{2*1} = -5[/tex]

[tex]y_{vertex} = (-5)^2 + 10*(-5) + 25 = 0[/tex]

This parabola has a vertex in (-5,0).

4. [tex]y(x) =(x- 5)^2 = x^2 - 10*x + 25[/tex]

[tex]a = 1\\b =- 10\\c = 25[/tex]

Therefore the vertex coordinate is:

[tex]x_{vertex} = -\frac{b}{2*a} = -\frac{-10}{2*1} = 5[/tex]

[tex]y_{vertex} = (5)^2 - 10*(5) + 25 = 0[/tex]

This parabola has a vertex in (5,0).

Answer:

0.983

Step-by-step explanation:

100(0.983)=98.3

Answer:

[tex]0.983[/tex]

Step-by-step explanation:

[tex]\frac{100-17/10}{100}[/tex]

[tex]\frac{100-1.7}{100}[/tex]

[tex]=0.983[/tex]

Answer:

x = [tex]\frac{8}{3}[/tex]

Step-by-step explanation:

Using the rule of logarithms

log x - log y = log ([tex]\frac{x}{y}[/tex] )

[tex]log_{b}[/tex] x = n ⇒ x = [tex]b^{n}[/tex]

Given

[tex]log_{2}[/tex] (9x) - [tex]log_{2}[/tex] 3 = 3

[tex]log_{2}[/tex] ([tex]\frac{9x}{3}[/tex] ) = 3

[tex]log_{2}[/tex] 3x = 3

3x = 2³ = 8 ( divide both sides by 3 )

x = [tex]\frac{8}{3}[/tex]

Answer:

cost = $65.00

made = $575.75

profit = $575.75 - $65.00

= $510.75

amount earned = $510.75 / 15

= $34.05

The amount of money earned by each player will be $34.05.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that a soccer team made $575.75 from selling popcorn at a concession stand during a tournament. The popcorn cost the team $65.00.

Cost = $65.00

Earning  = $575.75

The profit will be calculated as,

Profit = $575.75 - $65.00

Profit  = $510.75

The amount earned = $510.75 / 15

The amount earned = $34.05

Therefore, the amount of money earned by each player will be $34.05.

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Answer:

8ft/3ft is the answer, please mark me BRAINLIEST! Thanks!

Answer:

272$

Step-by-step explanation:

Since it is at a sale of 20% off that means that we will have to subtract 100% from 20% which is 80%

Now to find the exact value, we will have to multiply 80%, or 0.80 with 340

0.80*340= 272$

Therefore our answer is 272$

                     - Hope this helped :)

-Brainliest is most appreciated :)

Reasoning:

A discount of 20% means that you still pay 80% of the remaining value (note how 20% + 80% = 100%)

80% = 80/100 = 0.80

80% of 340 = 0.80*340 = 272

Answer:

5/6

Step-by-step explanation:

To distribute the water equally, you divide the 5 gallons of H2O by 6 people. You will get the fraction 5/6 as your answer.

Answer:

A, C, and E are correct.

Step-by-step explanation:

B is incorrect because a line that passes through point F would be the bisect, not line segment AB

D is incorrect because it just is.

The correct three options are -

The midpoint of a line segment is a point situated on a line segment at which the line segment is divided into two equal lengths.

The bisector is a line segment which cuts another line segment into two parts of equal length.

Here in the problem, we have -

E is the midpoint of Line segment AB and point F is the midpoint of Line segment CD.

A line has points C, E, F, and D.

Another line has points A, E, and B.

A line goes from point A to point F.

So from the figure we can see that Line segment CD intersects Line segment AB at point E and E is the midpoint of AB. So clearly CD bisects AB.

So option (a) is correct.

F is the midpoint of CD but AB intersects CD at E which is situated left of F then AB does not bisect the line segment CD.

So option (b) is incorrect.

As E is the midpoint of AB so it divides the line into equal two parts.

[tex]AE = EB = \frac{1}{2}AB[/tex]

So option (c) is correct.

F is the midpoint of CD.

So, [tex]CF = FD = \frac{1}{2} CD[/tex]

Hence, EF is not one-half ED as we don't know about the midpoint of ED.

Thus, option (d) is incorrect.

From the figure, we can see that,

[tex]CE + EF = CF[/tex]

and F is the midpoint of CD

[tex]CF = FD\\CE + EF = FD[/tex]

Hence option (e) is correct.

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Answer:

[tex]\mathrm{No\:Solution}[/tex]

Step-by-step explanation:

By using comparing the left hand side of the two given equations we have:

[tex]\begin{bmatrix}2x+y=11\\ 2x+y=2\end{bmatrix}\\\\\begin{bmatrix}11=2\end{bmatrix}\\\\11=2\:\mathrm{\:is\:false,\:therefore\:the\:system\:of\:equations\:has\:no\:solution}[/tex]

Best Regards!

Answer: 25 days

Step-by-step explanation:

The original number of students in the hostel was 50, and now it is 80 because 30 joined. So the original number of students was 5/8 of what it is now.

I use the inverse formula the number of days the food will last.

40 * 5/8 = 200/8 = 25

If there are 80 students, then the food will only last for 25 days.

Answer:

A. Yes, the relationship is proportional

B. No, the slope is -3

C. Yes, the slope is negative

D. No, the y intercept is 0

E. Yes, the equation is  y=-3x.

Answer

The answer is A C and E

Step-by-step explanation:

Answer:

2 and 3

Step-by-step explanation:

Given:

S₁₋₄= 4/2(2a+3d)=4a+6d= 30

⇒ 2a+3d=15

S₄₋₇= S₇ - S₃= 7/2(2a+6d)- 3/2(2a+2d)= 7a+21d - 3a - 3d= 4a+18d=66  

⇒ 2a+9d= 33

Comparing the 2 equations:

Answer:

Please see the attached picture...

Hope it helps...

Good luck on your assignment....

The answer is y = 2x - 15

The equation of a line is y = mx +c

m = slope

c = y intercept

From this equation y=2x+6

m = 2

Since the lines are parallel their gradients are also the same

Equation of the line using point (8,1) is

y - 1 = 2(x-8)

y - 1 = 2x - 16

y = 2x - 15

Hope this helps

Answer: y=2x-15

Step-by-step explanation: Since the lines are parallel their slopes will be the same, so all you need to do is plug in (8,1) in the x and y values of the equation: y=2x+b. When you do this you get 1=2(8)+b. Simplify. The b value will be -15 which is the y-intercept so the answer is y=2x-15