Please help me and I’ll give you brainiest!!!!!!!!! !!!???

Mathematics

2 answers:

Alexxandr [17]3 years ago

8 0

The point slope form would be y-9= -2(x-8)

zheka24 [161]3 years ago

5 0

Answer:

Step-by-step explanation:

Send the question to this email never mind not sure sorry24

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To form 3 adjacent squares (as in the figure), 10 toothpicks are required. How many toothpicks are required to form 100 adjacent

Sonja [21]

Let's say in general you want "n" adjacent squares. Each one needs a top, so that's n toothpicks. Each one needs a bottom, so that's another n toothpicks, and we're up to 2n total. You need one on the far left, and one on the far right, which brings us up to 2n + 2 toothpicks. Now we need to worry about the middle ones. But notice that you don't need n toothpicks for the interior because adjacent squares share. It turns out that you only need n-1. That brings us up to a grand total of 3n + 1 toothpicks, which would be 301 for n = 100.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

7 0

3 years ago

20 POINT QUESTION!! Complete the equation of the linear function. y = x +

Viefleur [7K]

$A=(0,1); B=( \frac{1}{2}, 0) \\ 
y=ax+b
 
\left \{ {{1=0a+b} \atop {0= \frac{1}{2}+b }} \right. \\ 
 \left \{ {{1=b} \atop { \frac{1}{2}a=-b}} \right. \\ 
 \left \{ {{b=1} \atop {a=-2}} \right. 

y=-2x+1$

8 0

3 years ago

Percentage grade averages were taken across all disciplines at a particular university, and the mean average was found to be 83.

Georgia [21]

Correct Ans:
Option A. 0.0100

Solution:
We are to find the probability that the class average for 10 selected classes is greater than 90. This involves the utilization of standard normal distribution.

First step will be to convert the given score into z score for given mean, standard deviation and sample size and then use that z score to find the said probability. So converting the value to z score:

$z-score= \frac{90-83.6}{ \frac{8.7}{ \sqrt{10} } } \\ \\ 
z-score =2.326$

So, 90 converted to z score for given data is 2.326. Now using the z-table we are to find the probability of z score to be greater than 2.326. The probability comes out to be 0.01.

Therefore, there is a 0.01 probability of the class average to be greater than 90 for the 10 classes.

5 0

3 years ago

Write a life situation for the inequality x<2

iVinArrow [24]

Answer:

see below (I hope this helps!)

Step-by-step explanation:

A real-life situation for this inequality could be "Tom runs a lemonade stand. His profit is x. If Tom knows that his profit is less than 2 dollars, what inequality represents this situation?"

3 0

3 years ago

Good morning my name is Makayla and I'm new so if u can help with my homework I can give u 5 stars if u can help me plss

Leokris [45]

Answer:

7.) 26

8.) 16

9.) 14

10.) 27

Step-by-step explanation:

4 0

3 years ago

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