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padilas [110]
3 years ago
6

Eva draws a line that includes the points (2,0) and (-2,2). Which function gives all the

Mathematics
1 answer:
Ainat [17]3 years ago
3 0
If you use photomath itll help you
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Need help!! What is the slope of the line through (2,-2) and (9,3)?
In-s [12.5K]

Finding the slope using two points:

The formula for slope is

\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

In this case...

y_{2} =3\\y_{1} =-2\\x_{2} =9\\x_{1} =2

^^^Plug these numbers into the formula for slope...

\frac{3 - (-2) }{9 - 2}

A) \frac{5}{7}

^^^This is your slope

Hope this helped!

~Just a girl in love with Shawn Mendes

6 0
2 years ago
Read 2 more answers
Simplify the following equation. (6x+4)+(5-2x)
xxTIMURxx [149]

Answer:

x= -9/4=-2.25

Step-by-step explanation:

plz rate and thank me if it is correct again i am a begginer!!! thank you:)

8 0
3 years ago
Francesca and Will want to find out if the triangle formed by connecting the points G, H, and I is a right triangle.
Brrunno [24]

Answer:

Only Francesca is correct

Step-by-step explanation:

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6 0
3 years ago
The length of human pregnancies from conception to birth follows a distribution with mean 266 days and standard deviation 15 day
Katena32 [7]

Answer:

a) 81.5%

b) 95%

c) 75%

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 266 days

Standard Deviation, σ = 15 days

We are given that the distribution of  length of human pregnancies is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

a) P(between 236 and 281 days)

P(236 \leq x \leq 281)\\\\= P(\displaystyle\frac{236 - 266}{15} \leq z \leq \displaystyle\frac{281-266}{15})\\\\= P(-2 \leq z \leq 1)\\\\= P(z \leq 1) - P(z < -2)\\= 0.838 - 0.023 = 0.815 = 81.5\%

b) a) P(last between 236 and 296)

P(236 \leq x \leq 281)\\\\= P(\displaystyle\frac{236 - 266}{15} \leq z \leq \displaystyle\frac{296-266}{15})\\\\= P(-2 \leq z \leq 2)\\\\= P(z \leq 2) - P(z < -2)\\= 0.973 - 0.023 = 0.95 = 95\%

c) If the data is not normally distributed.

Then, according to Chebyshev's theorem, at least 1-\dfrac{1}{k^2}  data lies within k standard deviation of mean.

For k = 2

1-\dfrac{1}{(2)^2} = 75\%

Atleast 75% of data lies within two standard deviation for a non normal data.

Thus, atleast 75% of pregnancies last between 236 and 296 days approximately.

7 0
3 years ago
Find the area of each figure. Use 3.14 for x.
Hitman42 [59]

Answer:

For the L shaped thing, the area is 224 ft^2

Step-by-step explanation:

18*(18-10) + 10*(18-10) = 224

Just requires some visualizing :) Hope this helps <3

7 0
3 years ago
Read 2 more answers
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