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Sonbull [250]
3 years ago
10

Can someone help me with this math homework please!

Mathematics
1 answer:
Delvig [45]3 years ago
3 0

Answer:

1. A -> k – 2 = 1/9(t – 18)

2. D -> Tim's with a y-intercept of $2,780

3. C -> y = x + 2

4. C -> y-8 = -0.2(x+10)

5. C -> $22.75

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4 drinks for $3 is a unit rate?​
yanalaym [24]

Answer:

No, a unit rate is a rate for one quanity such as 1 drink for 0.75 cents.

Step-by-step explanation:

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3 years ago
Samples of rejuvenated mitochondria are mutated (defective) with probability 0.11. Find the probability you need to examine at l
joja [24]

Answer:

The probability that more than 6 samples are needed to have 2 mutations is P=0.866.

Step-by-step explanation:

This question can be analized with the binomial distribution.

We need to calculate the probability that more of 6 samples are needed to have 2 samples with mutations.

This is equal to the proability of taking 2 samples and getting one mutation or less.

Then we have a binomial distribution with n=6 and p=0.11:

P(X\leq1)=P(0)+P(1)\\\\P(X\leq 1)=(1-p)^6+6p(1-p)^5\\\\P(X\leq 1)=0.89^6+6*0.11*0.89^5=0.497+0.369=0.866

3 0
3 years ago
2) There are 500 calories in 5 servings of Sour
ankoles [38]
There are 100 calories per serving and there a 800 calories in 8 servings.
7 0
3 years ago
Find the sales tax for three cds if each cd is $14.29 and the sales tax is 7.25%
mestny [16]
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8 0
4 years ago
Read 2 more answers
What are the solutions on the following system?
Oksana_A [137]
2x+y = -5.  Solve this for y.  We get y = -2x - 5.  Find y^2:  4x^2 + 20x + 25.  Substitute 4x^2 + 20x + 25 for y^2 in the first equation:

x^2 + 4x^2 + 20x + 25 = 25

Then 5x^2 + 20x = 0, so that x = 0.  Subst. 0 for x in the 2nd eqn and find the value of y.  Write your solutions as shown above:  (  ,  ) and (  ,  ).
3 0
4 years ago
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