which value of y makes the inqeuality 3y^2+2(y-5)>8 true​

Answer:

11 months

788 disc

Step-by-step explanation:

Let

x = number of months

Fry's Electronics;

= 920 - 12x

Blu-ray discs:

= 502 + 26x

Equate both equations

920 - 12x = 502 + 26x

920 - 502 = 26x + 12x

418 = 38x

x = 418/38

x = 11 months

number of months = 11

Substitute 11 into any of the equation

Fry's Electronics;

= 920 - 12x

= 920 - 12(11)

= 920 - 132

= 788 disc sold in that months

Answer:

26/20

Step-by-step explanation:

y2-y1 divided by x2-x1

4-24= -20

3-29= -26

-20/-26= m

perpendicular means to switch the numbers and change the sign

a perpendicular slope to -20/-26 is 26/20.

Answer: 6

Step-by-step explanation: the table is going down by 4 so the next number is 6

Answer:

230$

Step-by-step explanation:

all you need to do is take 5 percent of 4600 and thats the comission.

Answer:

y=3.5x

Step-by-step explanation:

Since when x is 0 when y is 0, there is no y-intercept. The ratio with the other values gives the equation y=3.5x, because y is 3.5 times larger than x.

Answer:

sorry I don't know

Step-by-step explanation:

hdkajdbdbsjjsvdchksbevd

Answer:

I don't know isisuwhvqb

Answer:

she will need 2/3 more jars

Answer: 4

Step-by-step explanation:

Use the triangle to the right to find the measure of the side the two triangles share. That side is 8.06 roughly and squared it’s 65. I used the 65 to solve for b in a^2 + b^2 = c^2

65 + b^2 = 81

b^2 = 16

b = 4

Answer:

8 boxes of tissues

5 bags of cough drops

Step-by-step explanation:

You need to write a system of equations.

x = number of tissue boxes

y = number of cough drop bags

x (number of tissue boxes) + y (number of cough drop bags) = 13 (total number of tissues and cough drops combined.

So, your first equation is

x + y = 13

Then, you need to write the second equation.

(1.69 [cost of 1 tissue box] * [number of tissue boxes]) + (1.19 [cost of one bag of cough drops] * [number of cough drop bags] = 19.47 [total cost of tissues and cough drops]

That's a lot to read, so here's the equation simplified!

1.69x + 1.19y = 19.47

Now, you have two equations:

x + y = 13

1.69x + 1.19y = 19.47

I would solve with the substitution method.

the first equation can be changed to x = 13 - y by subtracting y from both sides.

Then, your two equations are:

x = 13 - y

1.69x + 1.19y = 19.47

Now, you can plug in that value of x into the second equation!

1.69(13 - y) + 1.19y = 19.47

21.97 - 1.69y + 1.19y = 19.47

subtract 21.97 from both sides

-1.69y + 1.19y = -2.5

Add the y values

-0.5y = -2.5

divide both sides by -0.5

so, y equals 5 bags of cough drops

now that you know what y equals, plug it back into your original equation to find x!

x + y = 13

plug in y

x + 5 = 13

x = 8

so, x = 8 boxes of tissues

Hope this helps! Let me know if you have any questions!

Answer:

Step-by-step explanation:

−48−(−6)−45

=−42−45

=−87

Answer:

-87

Step-by-step explanation:

Answer:y=7(2)^x

Step-by-step explanation:

The exponential function in the form y=ab^x that goes through the given points is f(x) = 7(2)ˣ.

Exponential functions are functions where the independent variable, x is in the exponent.

The general form of exponential function is,

f(x) = abˣ

The function passes through (0,7) and (9, 3584).

Substituting (0, 7),

7 = a b⁰

7 = a  (since b⁰ = 1)

So, a = 7

Function is f(x) = 7bˣ

Now Substituting (9, 3584),

3584 = 7 b⁹

b⁹ = 3584 / 7

b⁹ = 512

b⁹ = 2⁹

b = 2

So the function is f(x) = 7(2)ˣ

Hence the function is f(x) = 7(2)ˣ.

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Answer:

Step-by-step explanation:

Can you like put the equation together it looks highly confusing

The solution for the given equation is 15.

The given equation is 2 = -7/4 + 1/4 x.

The solution of an equation is the set of all values that, when substituted for unknowns, make an equation true.

Here, 2 = (-7+x)/4

2×4 = -7+x

8 = -7+x

x = 8+7

x = 15

Therefore, the solution for the given equation is 15.

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Answer:

6

Step-by-step explanation:

Answer:

x = 6

Step-by-step explanation:

So we know that:

5x-10 = 20

5x=20+10

5x=30

x=6

hope this helps :)

Answer:

My answer is 64

Step-by-step explanation:

How I got my answer is that you write the numbers and the difference of the each 2 numbers. When you see the pattern is 5, 10, 20, and it might as well be 25 because you are going to start all over with the pattern

Answer:

Cameron will do 79 jumping jacks on Sunday

Step-by-step explanation:

So on Wednesday, he did 4 jumping jacks. On Thursday, he did 5 more jumping jacks than he did on Wednesday (9 total ). On Friday, the difference between Wednesday and Thursday doubled, and it has a difference of 10 new jumping jacks(19 total). On Saturday, the difference between Thursday and Friday doubled from 10 to 20, (39 total). So if the difference keeps up, which it should, The difference between Saturday and Sunday should double from the diffeerence from Friday to Saturday (a difference of 20). So if the difference is doubled, it will be a difference of 40. so 39+40=79.

Answer:

4 soda's and 4 candy's with 1 dollar left over

Answer:

[tex]20x^{2}[/tex]-7x-6

Step-by-step explanation:

Answer:

∠ GJK = 22°

Step-by-step explanation:

∠ HJI = ∠ JHG ( alternate angles ), then

7x - 16 = 5x + 8 ( subtract 5x from both sides )

2x - 16 = 8 ( add 16 to both sides )

2x = 24 ( divide both sides by 2 )

x = 12 , so

∠ KJI = 7x - 16 = 7(12) - 16 = 84 - 16 = 68°

Then

∠ GJI = 90° ( vertex of a rectangle )

∠ GJK = 90° - 68° = 22°

Answer:

[tex] x = \sqrt 5[/tex]

Step-by-step explanation:

On solving by Pythagoras theorem:

(Going in counterclockwise direction)

For bottom most triangle :

Length of Hypotenuse [tex] = \sqrt {1^2 +1^2} =\sqrt {1+1}=\sqrt 2[/tex]

The for second triangle :

Length of Hypotenuse [tex] = \sqrt {(\sqrt 2) ^2 +1^2} =\sqrt {2+1}=\sqrt 3[/tex]

The for third triangle :

Length of Hypotenuse [tex] = \sqrt {(\sqrt 3) ^2 +1^2} =\sqrt {3+1}=\sqrt 4 = 2[/tex]

The for fourth triangle :

x [tex] = \sqrt {(2) ^2 +1^2} =\sqrt {4+1}=\sqrt 5 [/tex]

The x value for the given partial spiral is √5 units.

We need to solve for x in the partial spiral given.

The Pythagoras theorem which is also referred to as the Pythagorean theorem explains the relationship between the three sides of a right-angled triangle. According to the Pythagoras theorem, the square of the hypotenuse is equal to the sum of the squares of the other two sides of a triangle.

From the right triangle 1:

Let the hypotenuse be a.

So, a²=1²+1²

⇒a=√2

From the right triangle 2:

Let the hypotenuse be b.

So, b²=(√2)²+1²

⇒b=√3

From the right triangle 3:

Let the hypotenuse be c.

So, c²=(√3)²+1²

⇒b=√4=2

From the right triangle 2:

The hypotenuse=x

So, x²=2²+1²

⇒x=√5

Therefore, the x value for the given partial spiral is √5 units.

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Answer:

Step-by-step explanation:

point-slope equation of the line: y+1 = -(x-3)

rearrange to solve for y:

y+1 = -x+3

y = -x + 2   slope-intercept form

Answer:

y = -x + 2

Step-by-step explanation:

We are given that a line has a slope of -1 and passes through the point (3, -1)

We want to write the equation of this line in slope-intercept form

Slope-intercept form is written as y=mx+b, where m is the slope and b is the value of y at the y intercept

As we are already given the slope, we can immediately plug its value into y=mx+b.

Replace m with -1 in y=mx+b.

y = -x + b (there's no need to write -1 in front of x. If -1 is the coefficient in front of a variable, just writing a minus sign in front of the variable is enough).

Now we need to find b.

As the equation passes through the point (3, -1), we can use it to help solve for b.

Substitute 3 as x and -1 as y.

-1 = -3 + b
Add 3 to both sides

2 = b

Substitute 2 as b in the equation so far.

y = -x + 2

Topic: finding the equation of the line (in slope-intercept form).

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Answer:

the number of visitors purchased guide books is 330 visitors

Step-by-step explanation:

The computation of the number of visitors purchased guide books is shown below;

= Number of visitors × visitors purchased guide books

= 550 × 3 ÷ 5

= 330

Hence, the number of visitors purchased guide books is 330 visitors

Answer:

6x + 2 is your answer I THINK

Answer:   [tex]\huge\boxed{\ m=7 }[/tex]

Step-by-step explanation: We can break this problem down to understand it.  Let the number be m. Three times the number 'm ' is 3.m or 3m. 3 ( m ) - 6 = 15. 3m -6 = 15 add 6 to both sides; 3m -6 + 6 = 15 + 6 3m = 21 dividing both the sides by 3 ,and  we get; 3m /3 = 21 / 3 m=7 .

Best of Luck!

Answer:

Step-by-step explanation:

Answer:

2, 5, 9

Step-by-step explanation:

The two shorter sides added together must be longer than the third side or they cannot make a triangle.

Answer:

There will be 10 cats in 5 years

Step-by-step explanation:

Since x means the number of years, x = 5

According to PEMDAS, we take care of the exponents first

So the exponent is x, so the exponent is actually 5

So we apply that to 0.28

0.28^5 = 0.002

0.002 x 5719 = 9.84

But... that would be impossible and just plain creepy if there were 9.84 cats lol

So I rounded it to 10 cats

Answer:

[tex]\Large\boxed{\sf 10 \ cats}[/tex]

Step-by-step explanation:

[tex]f(x) = 5719(0.28)^x[/tex]

[tex]\sf Where \ x=5[/tex]

[tex]f(5) = 5719(0.28)^5=10[/tex]

Answer:

2nd one is 4.48

Step-by-step explanation:

Answer:

C is the answer

Step-by-step explanation:

The equation of the red graph is [tex]x^{2} +2[/tex].

The equation of the parabola whose vertex is (h, k) is

[tex]y = a(x-h)^{2} + k[/tex]

According to the given question.

We have a graph for the function f(x) and g(x).

[tex]f(x) =x^{2}[/tex]..(i)

⇒ the equation of parabola whose vertex is (0, 0)

Since, we know the standard form of the  equation of parabola is

[tex]y = a(x-h)^{2} +k[/tex]

Substitute h = 0 and k = 0 in the above equation.

⇒ [tex]y = a(x-0)^{2} +0[/tex]

⇒ [tex]y = ax^{2}[/tex]..(ii)                          (where, y = f(x))

On comparing the first two equations we get a = 1.

From the graph we can see that g(x) is a equation of parabola, whose vertex is (0, 2).

Therefore, the equation for red graph is given by

[tex]g(x) =a(x-0)^{2} + 2[/tex]

[tex]g(x) = 1x^{2} +2[/tex]                 (because a = 1)

⇒ [tex]g(x) = x^{2} +2[/tex]

Hence, option c is correct.

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