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ASHA 777 [7]
3 years ago
11

For the function f(x)=(7-8x)^2, find f^-1 determine whether f^-1 is a function

Mathematics
1 answer:
sertanlavr [38]3 years ago
5 0
Is this question correct ?

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Penny divides 1 by 8 and that the quotient is 0.125. What is the quotient rounded to the nearest hundred
zheka24 [161]
The two is in the hundreth place
Look at the number next to it, it's a five. Five rounds 2 to 3. 
Your answer is 0.13
5 0
3 years ago
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I need help on this!!!​
anastassius [24]
3/4

Write the proportion formula like this: P(event) For this problem you would write it like this: P(pick red) Since there are 4 blocks (two red and two blue) there is a 1/2 chance that you would pull out a red block.

Hope this helps!
-Coconut;)
6 0
3 years ago
To study the effectiveness of vitamin C in preventing colds, a researcher recruited 200 volunteers. She randomly assigned 100 of
Paul [167]

Answer:

The claim made by the researcher lacks the validity on basis of reasons as indicated in the explanation.

Step-by-step explanation:

The claim made by the researcher is not valid on basis of following reasons:

  1. Interacting variables are not mapped accurately. The additional variables as the health status of the volunteers, eating and fitness habits are not considered in the consideration. This results in a in complete validation.
  2. The placebo effect is not catered accordingly. As the half of the volunteers are taking nothing, this is not the direct influence of the placebo and thus double-blinded testing for placebo effect is to be ensured in future experiments.
  3. The environmental effects are not considered as the effect under study is dependent on the environmental effects, thus the claim is biased and the generalization is not valid.
5 0
2 years ago
40 POINTS please help
LuckyWell [14K]
13 1/4 is the answer

9 7/8 + 3 3/8

12 10/8

13 2/8

13 1/4 (simplified)
7 0
2 years ago
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For her exercise today, Keiko plans to both run and swim. Let r be the number of laps she runs and let s be the number of laps s
DerKrebs [107]

Answer:

5r + 3s ≥ 30

Step-by-step explanation:

We know Keiko wants to do exercise at least 30 minutes a day, and she wants ideally to mix up the activities, by combining running and swimming into her schedule.

Since each lap she runs takes 5 minutes and each lap she swims takes 3 minutes, these will be the left side of the inequality:

5r + 3s

She wants to exercise at least 30 minutes a day, so...

5r + 3s ≥ 30

she could do 3 laps of running and 5 laps of swimming for example.

6 0
3 years ago
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