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agasfer [191]
3 years ago
10

Find the values of c and d​

Mathematics
1 answer:
forsale [732]3 years ago
4 0

36 + 3c = 90 \\ 3c = 90 - 36 \\ 3c = 54 \\ c = 18

5d + 10 = 90 \\ 5d = 90 - 10 \\ 5d = 80 \\ d = 16

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Hey can you please help me posted picture of question
Sergeeva-Olga [200]
Total number of chips = 4+ 6 = 10
Number of white chips = 4

Probability of picking a white chip = \frac{4}{10}= \frac{2}{5}

This white chip is not replaced back into the bag. This will reduce the number of white chips in the bag by 1 and reduce the total number of chips in the bag by 1.

So, now the total number of chips in the bag = 3 + 6 = 9
Number of white chips in the bag = 3

Probability of picking a white chip = \frac{3}{9}= \frac{1}{3}

Thus, the probability of picking two white chips will be = \frac{2}{5}* \frac{1}{3}= \frac{2}{15}

Therefore, option B gives the correct answer.
3 0
3 years ago
Which equation is equivalent to StartRoot x EndRoot + 11 = 15?
Lerok [7]

The equivalent expression of \sqrt x + 11 = 15 is \sqrt x = 15 - 11

<h3>How to determine the equivalent expression?</h3>

The complete question is in the attached image

The expression is given as:

\sqrt x + 11 = 15

Subtract 11 from both sides of the equation

\sqrt x + 11 - 11= 15 - 11

This gives

\sqrt x = 15 - 11

Hence, the equivalent expression of \sqrt x + 11 = 15 is \sqrt x = 15 - 11

Read more about equivalent expression at:

brainly.com/question/4344214

#SPJ1

5 0
2 years ago
Write the expression using a single exponent 2^2•2^8
kondor19780726 [428]

I think it’s C. 4^16,

5 0
3 years ago
A quiz consists of 40 multiple choice​ questions, each with five possible​ answers, only one of which is correct. If a student g
Artist 52 [7]

Answer:

8 and 2.529

Step-by-step explanation:

The computation of the mean and the standard deviation is shown below:

Given that

Total number of questions is n =  40

The Probability of correct answer is p =  \frac{1}{5}

So, the probability of the wrong answer is q =  1 - \frac {1}{5} = \frac{4}{5}

Moreover, this is the binomial distribution

Based on the above information

The mean is

= n \times p

= 40\times \frac{1}{5}

= 8

Now the variance is

= 40\times \frac{1}{5} \times \frac{4}{5}

= \frac{32}{5}

So, the standard deviation is

= \sqrt{\frac{32}{5} }

= 2.529

hence, the mean and the standard deviation is 8 and 2.529 respectively

6 0
3 years ago
Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE
zhannawk [14.2K]
H(t) = t^(3/4) - 3t^(1/4)

The critical points can be evaluated by taking the first derivative and equating to 0.

h'(t) = 3 / t^(1/4)  - 3 / 4t^(3/4)
3 / (4t^(3/4)) = 3 / t^(1/4)
4t^(3/4) = t^(1/4)

4 = 1/√t
t = 1/16, t = -1/16
3 0
3 years ago
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