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4 years ago

If 5 chips are chosen without replacement what is the probability that none is white

Mathematics

1 answer:

Jlenok [28]4 years ago

8 0

What are the colors?

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What is the answer to 7 or 8???

Eddi Din [679]

Answer:

7. parallel: k = 3

perpendicular: k = -4/3

8. $1300

Step-by-step explanation:

Rewrite each equation as the slope-intercept form of a linear equation:

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

8y = 12x + 6

⇒ $y=\dfrac32x+\dfrac34$

4y = k(2x + 10)

⇒ 4y = 2kx + 10k

⇒ $y = \dfrac12kx + \dfrac52k$

If the graphs are parallel their slopes will be the same.

$\implies \dfrac32=\dfrac12k$

$\implies k=3$

If the graphs are perpendicular then the product of their slopes will be -1.

$\implies \dfrac32 \times \dfrac12k=-1$

$\implies \dfrac12k=-\dfrac23$

$\implies k=-\dfrac43$

8. Create a linear equation, where x is the number of coffee mugs and y is the total cost (in dollars).

Choose 2 ordered pairs from the table: (10, 110) and (20, 195)

Let $(x_1,y_1)$ = (10, 110)

Let $(x_2,y_2)$ = (20, 195)

Use the slope formula to find the slope m:

$\implies m=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{195-110}{20-10}=\dfrac{17}{2}$

Now use the point-slope form of linear equation:

$\implies y-y_1=m(x-x_1)$

$\implies y-110=\dfrac{17}{2}(x-10)$

$\implies y=\dfrac{17}{2}x+25$

Substitute x = 150 into the equation and solve for y:

$\implies y=\dfrac{17}{2}(150)+25=1300$

Therefore, the total cost of ordereing 150 mugs is $1300

5 0

2 years ago

I need help with math.............

telo118 [61]

Greetings!

Solve using the properties of equality:
$2(x+2)=4x+1-2x$
Distribute the Parenthesis.
$2x+4=4x+1-2x$
Combine like terms.
$2x+4=2x+1$
There are no possible solutions.

Hope this helps.
-Benjamin

4 0

3 years ago

Which function describes this graph?

Elena-2011 [213]

The answer is C. Y= x^2+7x+10

6 0

3 years ago

Michael wanted to buy 7 pizzas. He used a coupon for $4 off the entire order. Let p represent the cost of 1 pizza. Which express

sergij07 [2.7K]

Answer:

D: 7p - 4

Step-by-step explanation:

If we have 7 pizzas and each one is worth p 7p would equal the cost of all seven. Then subtract 4 from the total.

3 0

3 years ago

The staff at the community center make a rectangular skating pit every year. They use 100 meters of boarding to enclose it. So t

Sliva [168]

For a width of 25, the length will also be 25, so the area is 25² = ...
625.

_____
The rule is
area = width×(50 -width)

3 0

3 years ago