Will bought 2 packs of baseball cards for $3 each. Later that day he bought 4 packs for $2 each. How much money did he spend total?

Answer:

Expand the polynomial using the FOIL method.

x

2

−

7

x

+

10

Step-by-step explanation:

Answer:

[tex] m\angle A = 79\degree[/tex]

[tex] m\angle B = 112\degree[/tex]

Step-by-step explanation:

ABCD is a cyclic Quadrilateral.

Opposite angles of a cyclic quadrilateral are supplementary.

Therefore,

[tex] m\angle A + m\angle C = 180\degree[/tex]

[tex] m\angle A + 101\degree = 180\degree[/tex]

[tex] m\angle A = 180\degree-101\degree[/tex]

[tex] \red{\bold {m\angle A = 79\degree}} [/tex]

[tex] m\angle B + m\angle D = 180\degree[/tex]

[tex] m\angle B + 68\degree = 180\degree[/tex]

[tex] m\angle B = 180\degree-68\degree[/tex]

[tex] \purple {\bold {m\angle B = 112\degree}} [/tex]

Answer:

[tex]\frac{8}{\left(-x+2\right)^2}[/tex] & [tex]x = 1, x = 3[/tex]

Step-by-step explanation:

I'm sure you are familiar with the product rule,

If y = u*v => dy/dx = u * dv/dx + v * dy/dx <----- product rule

In this case:

[tex]u=3x+2,\:v=\left(2-x\right)^{-1},\\=>\frac{d}{dx}\left(3x+2\right)\left(2-x\right)^{-1}+\frac{d}{dx}\left(\left(2-x\right)^{-1}\right)\left(3x+2\right)[/tex]

Now remember the sum rule:

[tex]\frac{d}{dx}\left(3x+2\right) = \frac{d}{dx}\left(3x\right)+\frac{d}{dx}\left(2\right),\\\frac{d}{dx}\left(3x\right) = 3,\\\frac{d}{dx}\left(2\right) = 0\\\frac{d}{dx}\left(3x+2\right) = 3[/tex]

For this second bit we apply the chain rule:

[tex]\frac{d}{dx}\left(\left(2-x\right)^{-1}\right) = -\frac{1}{\left(2-x\right)^2}\frac{d}{dx}\left(2-x\right),\\\frac{d}{dx}\left(2-x\right) = -1,\\\\=> -\frac{1}{\left(2-x\right)^2}\left(-1\right)\\=> \frac{1}{\left(2-x\right)^2}[/tex]

If we substitute these values back into the expression...[tex]\frac{d}{dx}\left(3x+2\right)\left(2-x\right)^{-1}+\frac{d}{dx}\left(\left(2-x\right)^{-1}\right)\left(3x+2\right)[/tex]

...we get the following:

[tex]3\left(2-x\right)^{-1}+\frac{1}{\left(2-x\right)^2}\left(3x+2\right)[/tex]

The rest is just pure simplification:

[tex]3\left(2-x\right)^{-1}+\frac{1}{\left(2-x\right)^2}\left(3x+2\right)\\= \frac{3}{-x+2}+\frac{3x+2}{\left(-x+2\right)^2}\\= \frac{3\left(-x+2\right)}{\left(-x+2\right)^2}+\frac{3x+2}{\left(-x+2\right)^2}\\\\= \frac{3\left(-x+2\right)+3x+2}{\left(-x+2\right)^2}\\\\= \frac{8}{\left(-x+2\right)^2}[/tex]

Now let's equate this to equal 8 for the second bit and solve for x:

[tex]\frac{8}{\left(-x+2\right)^2}=8,\\\frac{8}{\left(-x+2\right)^2}\left(-x+2\right)^2=8\left(-x+2\right)^2,\\8=8\left(-x+2\right)^2,\\\left(-x+2\right)^2=1,\\x = 1, x = 3[/tex]

Answer:

y = 2.5x

Step-by-step explanation:

Answer:

No, her reasoning is wrong

Step-by-step explanation:

Her reasoning is not correct because for one the expression clearly has a term. a/2 is a term on its own. So she concluding that a/2 isn't a term is quite wrong. Again, her basis for conclusion being that there exists no addition or subtraction signs makes the equation not being a term wrong, as well. Even though there isn't and subtraction nor addition sign, it does not stop it from being any less of a term

Answer:

Y = 3/2x + 8

Step-by-step explanation:

Slope (AKA M) can be found searching for each point on the graph. Since the graph starts at 8 it is the Y intercept (AKA B)

Answer:

Step-by-step explanation:

-4=2x+16

-16. -16

-20=2x

20/2=2x/2

10=x

Answer:

The outlier is A) Point A

Step-by-step explanation:

Hope this helps! <3

Answer:

no.

Step-by-step explanation:

Answer:

(-12,3,5)

x=-12,y=3.z=5

Step-by-step explanation:

Answer:

A and D and E

Step-by-step explanation:

Substitute the variable(in this case) t for 3, then use the order of operations to simplify(PEMDAS), which will give you 33 for both expressions. To see if two expressions are equivalent, you need to substitute the variable for an odd number AND an even number, so next, substitute the variable t for the number 6, which will give you 51 for both expressions. That means the expressions are equivalent

Hope this helps :)

P.S. Mark brainliest pls

Answer:

Step-by-step explanation:

Given expressions:

The value of both expressions when t=3 is 33.

The value of both expressions when t=3 is 23.

The value of both expressions when t=6 is 41.

The value of both expressions when t=6 is 51.

The two expressions are equivalent.

The two expressions are not equivalent.

Answer:

11.9 feet

Step-by-step explanation:

x^2=8^2+13^2-2×8×13×cos64

√x^2 =√141.8188015

x=11.90876994

The distance between the two golf balls is 11.91 feet

The law of cosines formula can be used to find the missing side of a triangle when its two sides and the included angle is given.

There are three laws of cosines and we choose one of them to solve our problems depending on the available data.

The distance between the golf balls is 8 feet and 13 feet.

angle = 64

For, this we will use the cosine theorem

[tex]cos 64^{0} =\frac{8^{2}+13^{2}-x^{2}}{2*8*13}\\ 0.4384= \frac{64+169-x^{2}}{208}[/tex]

[tex]x^{2} = 141.82[/tex]

and, x =11.91

So, the distance between the two balls is: 11.91 feet

Learn more about cosine here:

https://brainly.com/question/3482956

#SPJ2

Answer:

6 seconds

Step-by-step explanation:

The computation of the number of second would be

In the case when the ball would hit the ground, the ball height would be zero

So the following equation would be

[tex]0 = -(x -2)^2 + 16\\\\(x -2)^2 = 16\\\\x - 2 = \sqrt{16}\\\\x -2 = 4\\\\x = 6[/tex]

So the number of seconds is 6

Answer:

23

Step-by-step explanation:

Answer:

It is Linear

Step-by-step explanation:

We know the regular Linear equation is y = mx + b. In this case, the mx and the b switched places, but the equation still works the same way. y = -2x + 3

Answer:

yes

Step-by-step explanation:

Linear equations look like this

y=mx+b

where m is the slope

and b is the y intercept

if we switch -2x and the 3 we have the following

y= -2x+3

which looks like our y=mx+b

Answer:

3550 ft.

Step-by-step explanation:

y = 500(5) + 1050

  = 2500 + 1050

  = 3550 ft,

Answer: if they at 5 miles right now it should take 10 more miles to reach their target/ location

Answer:

Tiffany purchase the better buy.

Step-by-step explanation:

given data

Tiffany paid  = $38

snowflake obsidian = 9 pounds

Tony paid = $19

same type of stone = 3 pounds

solution

Tiffany shopped well in this scenario. Mainly because Tiffany paid less per pound than Tony. This can be calculated by dividing the total amount paid by the amount received by each

so for Tiffany

= $38 ÷ 9

= $4.22 per pound

and for Tony  

=$19 ÷ 3

= $6.33 per pound

so that here Tiffany paid $4.22 per pound and Tony paid $6.33 per pound

so here whole $2.11 more than Tiffany

so that with this Tiffany purchase the better buy.

Look up "Everything You Need To Know About Math In One Big Fat Notebook pdf." It's the best thing I've ever been given, I have it with me in math class all the time and I've aced every test.

Step-by-step explanation:

Sum of 3 by 4 and 7 by 4 is

[tex] = \frac{3}{4} + \frac{7}{4 } \\ = \frac{3 + 7}{4} \\ = \frac{10}{4} \\ = \frac{5}{2} [/tex]

Hope it will help :)

Answer: I got x = 16

Answer:

Step-by-step explanation:

3(x-4)=36

3x-12=36. 3x=48. 48÷3= 16. x=16

Answer: $‭176.4‬0

Step-by-step explanation:

Keith mowed the yard 12 times.

Each time he mowed took 1.75 hours.

The number of hours he took in total is therefore:

= 12 * 1.75 hours

= 21 hours

He gets paid $8.40 for every hour he works. For the 21 hours therefore, he would earn:

= 8.40 * 21 hours

= $‭176.4‬0

9514 1404 393

Answer:

 A)  (3 cm x 4 cm ÷ 2) x 3 cm

Step-by-step explanation:

The volume is the product of the area of the triangular bases and the distance between them.

Each right triangular base has a width of 3 cm and a height of 4 cm. Its area will be given by ...

 A = (1/2)bh

 A = (1/2)(3 cm)(4 cm) = (3 cm × 4 cm) ÷ 2

__

The distance between the triangular bases is marked at the left side of the diagram as 3 cm. So, the volume is ...

 V = Bh

 V = (3 cm × 4 cm ÷ 2) × 3 cm . . . . . matches choice A

There aren't any more steps. The answer starts by saying how the volume is computed. Then it shows how to find the numbers that go into that computation. Finally, it puts all that together in the form that is required to match an answer choice.

It might also be useful for you to draw the net to scale on a piece of paper, cut it out, and fold it along the lines to actually make a triangular prism. A little hands-on is always helpful in math. It only takes 5 or 10 minutes and can give you great insight into both prisms and nets.

Answer:

third option

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - 2x - 5 ← is in slope- intercept form

with slope m = - 2

Given a line with slope m then the slope of a line perpendicular to it is

[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{-2}[/tex] = [tex]\frac{1}{2}[/tex] , then

y = [tex]\frac{1}{2}[/tex] x + c ← is the partial equation

To find c substitute (- 1, 1) into the partial equation

1 = - [tex]\frac{1}{2}[/tex] + c ⇒ c = 1 + [tex]\frac{1}{2}[/tex] = [tex]\frac{3}{2}[/tex]

y = [tex]\frac{1}{2}[/tex] x + [tex]\frac{3}{2}[/tex] ← equation of perpendicular line

Answer:

B: N

Step-by-step explanation:

Answer:

I think the point s is (8,-18)

Step-by-step explanation:

pls lmk of I'm wrong

Answer:

A. y=2x

Step-by-step explanation:

m=rise/run

rise=2

run=1

2/1=2

and that was the only equation with a slope of 2

Answer:

Step-by-step explanation:

The answer is c and the second part im not sure