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3 years ago

PLEASE HELP! WILL MARK BRAINLIEST!

Mathematics

2 answers:

Irina-Kira [14]3 years ago

5 0

The answer is A. She starts with 50 dollars, and increases by 2 with every bar sold.

lara31 [8.8K]3 years ago

3 0

Answer: look here A

Step-by-step explanation:

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PLEASE HELP ILL GIVE BRAINLIEST!

Flauer [41]

Answer:

I am not so sure about the answer but this may help

Step-by-step explanation:

1. A and B

3 0

3 years ago

Assume that there are 22 frozen dinners: 12 pasta, 6 chicken, and 4 seafood dinners. The student selects 5 of them. What is the

Stells [14]

Since, there are 22 frozen dinners. Out of these, 22 are pasta, 6 chicken and 4 seafood dinners.

We have to determine the probability that at least 2 of the dinners selected are pasta dinner. At least 2 of the dinners selected are pasta, it means that there can be 2 pasta, 3 , 4 or 5.

So, Probability with at least 2 of dinners

= $\frac{(^{12}C_{2} \times ^{10}C_{3})+ (^{12}C_{3} \times ^{10}C_{2})+(^{12}C_{4} \times ^{10}C_{1})+(^{12}C_{5})}{^{22}C_{5}}$

We will use the combination formula, which states $^nC_r = \frac{n!}{r! (n-r)!}$

= $\frac{(66 \times 120)+(220 \times 45)+(495 \times 10)+(792)}{26334}$

= $\frac{7920+9900+4950+792}{26334}$

= $\frac{23562}{26334}$

= 0.894

=0.90

Therefore, the probability that at least 2 of the dinners selected are pasta is 0.90

3 0

3 years ago

It is reported that 72% of working women use computers at work.

VARVARA [1.3K]

Answer:

Step-by-step explanation:

the answer is up at the top

6 0

3 years ago

Anne claims that a store-brand fertilizer works better than homemade compost as a soil enhancement when growing tomatoes. To tes

goldenfox [79]

Answer: Paired t interval for μdiff

Step-by-step explanation:

The confidence interval suitable for analysing the data described in the scenario above is the paired t test which is employed when there are two different sets of measured reading or observation for each subject. In the scenario above, the subjects are of of the different planters employed whereby the pair of measurement are the weight of tomatoes obtained for each of the two different fertilizer types applied to each of the two plants in a planter. With these data, we can measure the difference in the effectiveness of each of the store brand and homegrown compost.

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3 years ago

2x^2+5x-3<br> Show steps

lbvjy [14]

2x^2+(6-1)x-3
2x^2+6x-x-3
2x(x+3)-1(x+3)
(2x-1)(x-1)

7 0

4 years ago