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marin [14]
2 years ago
15

Helpp me please

Mathematics
1 answer:
FrozenT [24]2 years ago
7 0

Answer:

  • 18) b, 19) c, 20) c

Step-by-step explanation:

<h3>#18</h3>

Conditional statement p → q, and its inverse is not p → not q.

Applied to the given statement we see the correct one is b.

<h3>#19</h3>

Let the cost of fish is f.

<u>As per question we have:</u>

  • 2(250) + 3f < 700
  • 500 + 3f < 700
  • 3f < 200
  • f < 200/3 ≈ 67

The maximum cost is 66 pesos.

Correct choice is c.

<h3>#20</h3>

<u>Given function:</u>

  • y = √3 - s

The range is all real numbers as no restrictions to its domain.

Correct choice is c.

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The net of a triangular prism is shown.
FrozenT [24]

Answer:

I’m pretty sure 60 or 56

Step-by-step explanation:

12+12+12+14+16 should be each square/shape I wrong so I’m so sorry I really hope I helped I think my equation is wrong but I hope my answer isn’t

4 0
2 years ago
Read 2 more answers
You recently sent out a survey to determine if the percentage of adults who use social media has changed from 66%, which was the
il63 [147K]

Answer:

The 98% confidence interval estimate of the proportion of adults who use social media is (0.56, 0.6034).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

Of the 2809 people who responded to survey, 1634 stated that they currently use social media.

This means that n = 2809, \pi = \frac{1634}{2809} = 0.5817

98% confidence level

So \alpha = 0.02, z is the value of Z that has a pvalue of 1 - \frac{0.02}{2} = 0.99, so Z = 2.327.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5817 - 2.327\sqrt{\frac{0.5817*4183}{2809}} = 0.56

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5817 + 2.327\sqrt{\frac{0.5817*4183}{2809}} = 0.6034

The 98% confidence interval estimate of the proportion of adults who use social media is (0.56, 0.6034).

6 0
2 years ago
What does A equal: 3(6a+12)=9
melisa1 [442]

Answer:

a = -3/2

Step-by-step explanation:

3(6a+12)=9

Divide each side by 3

3/3(6a+12)=9/3

6a+12 = 3

Subtract 12 from each side

6a+12-12 = 3-12

6a = -9

Divide by 6

6a/6 = -9/6

a = -3/2

5 0
2 years ago
Read 2 more answers
HELP MEEEEE!!! I HAVE AN F
mariarad [96]

Answer:

B is your answer!

Step-by-step explanation:

Hope I helped:)

6 0
3 years ago
A circular pizza costs $19.99. What is the cost of 1 square centimetre if the diameter of the pizza is 36 cm?
butalik [34]

Answer:

$1.29

Step-by-step explanation:

=> (26÷20)-0.01

=> 1.3-0.01

=>1.29

1.29 $ is the answer

4 0
2 years ago
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