The probability that Brian buys a sandwich is 0.1. The probability that Brian gets the bus is 0.6. Assuming the events are independent, what is the probability that Brian buys a sandwich and gets the bus?

Answer:

3(3x-1)(3x+1)

Step-by-step explanation:

27x²-3

You can factor out a 3

3(9x²-1)

Now we can use the difference of perfect squares formula

x²-y²=(x+y)(x-y) which means that 9x²-1=

(3x-1)(3x+1)

put it all together and get

3(3x-1)(3x+1)

Answer:

a simultaneous equation is a set of equations. you need at least another equation.

Answer:

Step-by-step explanation:

Let's solve for x.

3x−4y= 1/ 3

Step 1: Add 4y to both sides.

3x−4y+4y= 1/ 3 +4y

3x=4y+ 1/ 3

Step 2: Divide both sides by 3.

3x/ 3 = 4y+ 1/ 3

3 x= 4/ 3 y+ 1/ 9

Answer:

x= 4/ 3 y+ 1/ 9

Let's solve for y.

3x−4y= 1/ 3

Step 1: Add -3x to both sides.

3x−4y+−3x= 1/ 3 +−3x

−4y=−3x+ 1/ 3

Step 2: Divide both sides by -4.

−4y/ −4 = −3x+ 1/ 3

−4 y= 3/ 4 x+ −1/ 12

Answer:

y= 3/ 4 x+ −1/ 12

Answer:

7.8

Step-by-step explanation:

1. 5^2 +6^2=x^2

2. 25+36 = x^2

3. 61=x^2

4. [tex]\sqrt{61}[/tex] = 7.8

Answer:

90

Step-by-step explanation:

on multiplication.

Answer:

6x^8 hope this helps

Step-by-step explanation:

Answer:

The slope here is undefined.

Step-by-step explanation:

The two points shown here are (4, 0) and (4, 1). To find the slope do (y B −  y A) /(x B −  x A).

(1 - 0)/(4 - 4)

Any number subtracted by 0 gets you itself. Any number subtracted byt he same number gets you zero.

1/0

You can't divide by zero, so the slope is undefined.

Answer:

-59

Step-by-step explanation:

Answer:

e

Step-by-step explanation:

Answer:

7-2x

Step-by-step explanation:

Answer:

[tex]E=5000N/C[/tex]

Step-by-step explanation:

From the question we are told that

Charge [tex]q= 60 \mu C[/tex]

Force [tex]F_=0.30N[/tex]

Generally the equation for electric field strength is mathematically given as

[tex]E=F/q[/tex]

[tex]E=\frac{0.30}{60*10^-^6}[/tex]

Therefore

[tex]E=5000N/C[/tex]

Answer:

Jatziry 10%, Kwa 11.1% , Miguel 12.5% , Gina 13%

convert all into percentages

Answer:

.27 or 27/100

Step-by-step explanation:

each tenth is equal to 10 one hundredths

Answer:

(-3,-1)

Step-by-step explanation:

To reflect them you gotta switch their places and change their signs from positive to negative.

so (x,y) -> (-y,-x)

Answer:

Square

Step-by-step explanation:

CHECK THE ATTACHMENT FOR THE FIQURE OF THE QUESTION

✓We were given the dimension of the rectangular prism as 10cm × 4cm × 4cm,

✓The cross section of the paperweight can be cut into half to it's base. Then the new dimension will be 4cm × 4cm which is a quadrilateral.

✓ Then width= 4cm, and height=4 cm are of the same values, hence the shape it forms is a SQUARE. and also the their angles is 90° each.

Answer:

392?

Step-by-step explanation:

to find perimeter you add each side I think, so...

50 + 50 + 50 + 50 + 96 + 96 = 392

No clue if I did this properly but based on my math I did it right not sure the formula you are using/ should be using to figure this out.

Answer:

76

Step-by-step explanation:

100% = 120

1/5 of 100% = 20%

20% = 120÷100×20

        = 24

100-24= 76

Step-by-step explanation:

do 100-22.5 and that should be the number

Answer:

yes it does

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

Answer:

-x+1

Step-by-step explanation:

Answer:

I hope my answer will helps you.

Answer:

12 because u use the other shapes to reference your measurements.

the answer is totally numbers

Answer:

Pack of 6

Step-by-step explanation:

Pack of 4 = £1

Packs of 6 = £1.20

Price per unit of each pack:

Pack of 4 ;

Unit price : cost / units

Unit price = £1 / 4 = £0.25

Pack of 6 ;

Unit price : cost / units

Unit price = £1.20 / 6 = £0.20

Pack of 6 is the best value for money as it has a lower unit price

Answer:

1.  A

2.  A

you just have to distribute and add the x's and other numbers together

Answer:

Step-by-step explanation:

1.A

2.A

Answer:

you add 40+45

Step-by-step explanation:

40+45=85

then you subtract 180 - 85 = 95

then divide x into 95 that will give you x=95

Answer:

they are living things that get their energy by eating dead animals and plants. they break down wastes of other animals.

Step-by-step explanation:

Hopefully this helps

Answer:

5027 square centimeters (cm2)

Step-by-step explanation:

Answer:

800π or 2513.3

Step-by-step explanation:

A = πr²/2

A = 1600π/2 or 800π

Answer:

2 and 1/2

Step-by-step explanation:

(the first one)

Answer:

3.68

Step-by-step explanation:

Make 16% a decimal then multiply by 23

.16*23=3.68

Answer:

11.76

Step-by-step explanation:

[tex]14 \div 4 = 3.5 \\ 3.5 \times 3 = 10.5 \\ 10.5 \times (1 + 12\%) = 10.5 \times 1.12 = 11.76[/tex]

Answer:

16 años

Step-by-step explanation:

Si la suma de la edad de Carlos y Felipe es igual a la de Maria, y en la pregunta nos dan la edad de Maria (M) y Carlos (C), entonces tenemos que encontrar la edad de Felipe. Para calcular esto necesitamos restar la edad de Carlos de la edad de Maria. Esto nos dara la edad exacta de Felipe (f).

M - C = f

29 - 13 = f

16 = f

Finalmente, vemos que la edad de Felipe es de 16 años