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3 years ago

What are the coordinates of the image Triangle ABC reflection over the line y=x ( please help!!)

Mathematics

1 answer:

S_A_V [24]3 years ago

6 0

Answer:

A (2,-1)

B (-3,-2)

C (-2,1)

Step-by-step explanation:

A (-2,-1), B (3, - 2), and C (2,1)

Image of triangle ABC reflexión over the y: opposite of the x-coordinates. The y coordinates stay the same.

A’ (2,-1), B’ (-3, -2), and C’ (-2,1)

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Two college roommates have each committed to donating to charity each week for the next year. The roommates’ weekly incomes are

schepotkina [342]

Answer:

C. 5 weeks.

Step-by-step explanation:

In this question we have a random variable that is equal to the sum of two normal-distributed random variables.

If we have two random variables X and Y, both normally distributed, the sum will have this properties:

$S=X+Y\\\\\ \mu_S=\mu_X+\mu_Y=30+60=90\\\\\sigma_S=\sqrt{\sigma_X^2+\sigma_Y^2}=\sqrt{10^2+20^2}=\sqrt{100+400}=\sqrt{500}=22.36$

To calculate the expected weeks that the donation exceeds $120, first we can calculate the probability of S>120:

$z=\frac{S-\mu_S}{\sigma_S} =\frac{120-90}{22.36}=\frac{30}{22.36}=1.34\\\\P(S>120)=P(z>1.34)=0.09012$

The expected weeks can be calculated as the product of the number of weeks in the year (52) and this probability:

$E=\#weeks*P(S>120)=52*0.09012=4.68$

The nearest answer is C. 5 weeks.

6 0

3 years ago

Which of the following is an appropriate line of fit for the data?

Bond [772]

Answer:

123idbd8dbokeofyccbdid12332

6 0

3 years ago

Container A has 800 ml of water and is leaking 6 ml per minute.

Fofino [41]

The answer is 50 minutes.
Explanation: 10*50=500, 1000-500=500
6*50=300, 800-300=500

6 0

3 years ago

Read 2 more answers

What’s the Area of the kite?

maria [59]

Answer:

54 m^2

Step-by-step explanation:

Area of a kite is the two diagonals multiplied and then divided by 2.

3+3=6

12+6=18

18(6)=108

108/2=54

Therefore, 54 m^2

I hope this helped and have a good rest of your day!

5 0

3 years ago

What is the value of D to the nearest tenth ?

Naily [24]

If two secants intersect from a point outside of the circle, then you can use formula:

26(26 + d) = 22(22 + 40)
676 + 26d = 22 * 62
26d = 1364 - 676
26d = 688
d = 688/26
d = 26.5 ← to the nearest tenth

8 0

3 years ago