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jeka94
3 years ago
6

Help please really need

Mathematics
1 answer:
Yanka [14]3 years ago
3 0

Answer:

c) no solution

Step-by-step explanation:

the roots are imaginary numbers

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On each turn of the knob, a gumball machine is equally likely to dispense a red, yellow, green or blue gumball, independent from
laiz [17]

Answer:

P(R_2Y_2C_2B_2) = 0.03845

Step-by-step explanation:

Given

Balls = 4 --- [R, Y, C and B]

Turns = 8

Required

P(R_2Y_2C_2B_2)

Since each of the 4 balls are equally likely, their probability is:

P(R) = P(Y) = P(C) = P(B) = \frac{1}{4}

From P(R_2Y_2C_2B_2), we have:

R = Y = C = B = 2

Total = 8

So, the total arrangement of the 8 balls is:

Arrangement = \frac{8!}{2!2!2!2!}

Arrangement = \frac{40320}{2*2*2*2}

Arrangement = \frac{40320}{16}

Arrangement = 2520

The individual probability of each ball, when put together is

Probability = P(R)^2 * P(Y)^2 * P(C)^2 * P(B)^2

Probability = (1/4)^2 *(1/4)^2 *(1/4)^2 *(1/4)^2

Probability = (1/16) *(1/16) *(1/16) *(1/16)

Probability = \frac{1}{65536}

Lastly:

P(R_2Y_2C_2B_2) = Arrangement * Probability

P(R_2Y_2C_2B_2) = 2520 * \frac{1}{65536}

P(R_2Y_2C_2B_2) = \frac{2520 }{65536}

P(R_2Y_2C_2B_2) = 0.03845

8 0
3 years ago
Catherine and Lance open a savings account at the same time. Catherine deposits $100 initially and adds $20 per week. Lance depo
docker41 [41]

Answer:

After 40 weeks

Step-by-step explanation:

To get the answer to this question, we need to first know the difference in the amount of money deposited by the 2 individuals and in this case it us $400 since one deposited $500 and the other $100

The next thing to do is to divide the difference in amount(400) by the amount contributed by each person per week.

Catherine deposits $20 per week

400/20 = 20

Lance deposits $10 per week

400/10 = 40

The LCM between 40 and 20 is 40 weeks.

Therefore, both individuals need to deposit money for 40 weeks for both of their savings to be the same.

If Catherine deposits $20 for 40 weeks,she will have 40 × 20 = $800 + $100(initial deposit that she made) = $900

Lance deposits $10 for for 40 weeks and he will have 40 × 10 = $400 + $500(initial deposit made by him)= $900

4 0
3 years ago
Read 2 more answers
I WILL MARK BRAINLIEST! JUST HAVE 5 MINS!!
Tju [1.3M]

Answer:

A! I am so happy to help you and hope you pass! <3

5 0
3 years ago
Read 2 more answers
What is the answer to this?
katrin [286]

Answer:

\huge\boxed{-28}

Step-by-step explanation:

We can substitute the given values of a, b, and c to find the value of this expression.

-4 | a + b - c|

-4 | 3 + (-2) - (-6)|

We know that <em>two negatives make a positive. </em>This means that -2 - (-6) will be the same this as -2+6

-4 | 3 + -2 + 6|

Adding a negative is the same as subtracting a positive.

\4 | 3-2+6|\\\\3-2+6 = 7

-4 \cdot 7 = -28

Hope this helped!

7 0
3 years ago
Read 2 more answers
PLZ HELP WILL MARK BRAINLIEST THANKS
Anon25 [30]
90 I’m sorry if I am wrong I got that in paper :)
8 0
3 years ago
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