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Nikitich [7]
2 years ago
11

7

Mathematics
1 answer:
Aleks [24]2 years ago
6 0
Can you please translate this so I can answer your question
You might be interested in
Find the slope of the line passing through the points of (3,-5) and (-9,-6)
slavikrds [6]

Answer:

1

m = ---

12

Step-by-step explanation:

The formula is y2-y1

---------

x2-x1

(x1,y1) (x2,y2)

(3,-5) (-9,-6)

You get the 2 Y's and subtract them

Do the same with the X's

Y's above , X's below

(y2- y1)

⬇

-6-(-5) -1 1

--------- = ---- = ---- = m

-9-(3) -12 12

⬆

(×2- x1)

This equation is backwards, thats why it was harder to understand. (-9,-6) is farther left and below point (3,-5), making it the REAL first point in the equation.

5 0
3 years ago
It takes Ivanna 3 minutes to complete 2 problems on her math homework . How long will it take Ivanna to complete 12 problems?
IRINA_888 [86]
18 minutes because 6*2 is 12 and 3*6 is 18. it will take 6 minutes to do 4 problems, 9 minutes to do 6 problems , 12 minutes to do 8 problems, 15 minutes to do 10 problems, and 18 minutes to do 12 problems
7 0
3 years ago
Read 2 more answers
According to a​ study, 68​% of all males between the ages of 18 and 24 live at home. ​ (Unmarried college students living in a d
Marat540 [252]

Answer:

a) P(X≥143​)=0

b) This contradicts the study as getting a sample with this proportion is almost impossible (if the proportion of 68% is true).

Step-by-step explanation:

If we use the normal approximation to the binomial distribution we have the following parameters (mean and standard deviation):

\mu=np=0.68*206=140.1\\\\ \sigma=\sqrt{np(1-p)}=\sqrt{206*0.68*0.32}=\sqrt{44.8256}=6.7

Then, we can calculate the probability of X being equal or more than 143 using the z-score:

z=\dfrac{X-\mu}{\sigma/\sqrt{n}}=\dfrac{143-140.1}{6.7/\sqrt{206}}=\dfrac{2.9}{0.4668}=6.2124\\\\\\P(x\geq143)=P(z>6.2124)=0

This contradicts the study as getting a sample with this proportion is almost impossible (if the proportion of 68% is true).

6 0
3 years ago
?
ExtremeBDS [4]

Answer:

C) Area of Triangle is 102 Square Units

3 0
3 years ago
What are Two equations that model this relationship 5:25
JulijaS [17]

Answer:

5/25 and 5 to 25

Step-by-step explanation:

jssjskkdkddk

8 0
4 years ago
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