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lesya692 [45]
3 years ago
8

Use the graph of the function f to find f(-1)

Mathematics
2 answers:
Vikki [24]3 years ago
7 0
We need the graph!!!!!!!
kogti [31]3 years ago
5 0

Answer:


Step-by-step explanation:

https://cusd300.owschools.com/media/g_alg02_ccss_2016/1/img_lesson.gif

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A dieter believes that the average number of calories in a homemade peanut better cookie is more than the average number of calo
zalisa [80]

The confidence interval formula is computed by:

Xbar ± Z s/ sqrt (n)

Where:

Xbar is the mean

Z is the z value

S is the standard deviation

N is the number of samples

 

So our given are:

90% confidence interval with a z value of 1.645

Sample size 40, 45

Mean 180, 179

Standard deviation 2, 4

 

So plugging that information in the data will give us a confidence interval:

For 1:

Xbar ± Z s/ sqrt (n)

= 180 ± 1.645 (2 / sqrt (40))

= 180 ± 1.645 (0.316227766)

= 180 ± 0.520194675

= 179.48, 180.52

For 2:

Xbar ± Z s/ sqrt (n)

= 179 ± 1.645 (4 / sqrt (45))

<span>= 179 ± 1.645 (0.596284794)</span>

therefore, the answer is letter b

8 0
3 years ago
Help and get 6 points!
timofeeve [1]
10 hours was the full time she painted
7 0
3 years ago
Read 2 more answers
6. If you draw 35 lines on a piece of paper so that no two lines are parallel to each
umka2103 [35]

The point of intersection is the point where lines intersect.

<em>There will be 595 intersections for 35 lines, where no 3 lines are concurrent.</em>

<em />

Given

<em />n = 35<em> --- the number of lines</em>

<em />d = 3<em> --- no three lines are concurrent</em>

<em />

When no three line are concurrent, it means that no three lines meet at the same point.

<u>So, the sequence of intersection is:</u>

  • <em>0 intersection for 1 line</em>
  • <em>1 intersection for 2 lines</em>
  • <em>3 intersections for 3 lines</em>
  • <em>6 intersections for 4 lines</em>

<em />

Following the above sequence, the number of intersections for n lines is:

n_k = \frac{n \times (n - 1)}{2}

In this case, n = 35.

So, we have:

n_k = \frac{35 \times (35 - 1)}{2}

n_k = \frac{35 \times 34}{2}

n_k = 35 \times 17

n_k = 595

<em>Hence, there will be 595 intersections for 35 lines, where no 3 lines are concurrent.</em>

<em />

Read more about lines of intersections at:

brainly.com/question/22368617

7 0
2 years ago
Read 2 more answers
Write the equation x^2 = 7x in standard form​
ZanzabumX [31]

Answer:

x²-7x=0

Step-by-step explanation:

please mark as brainliest

7 0
3 years ago
2/15<br> ÷<br> 1/30<br> brainliest to the person who gets it correct and fast
muminat

Answer:

4

Step-by-step explanation:

we know that 2/15 : 1/30 = 2/15 * 30 = 60/15 = 4

3 0
2 years ago
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