2 years ago

What are the coordinates of the image of vertex F after a reflection across the line y = –x?

Mathematics

1 answer:

Alona [7]2 years ago

7 0

Answer:(-3,1)

Step-by-step explanation:

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Dana has 4 hours to spend training for an upcoming race. She completes her training by running full speed the distance of the ra

Sedaia [141]

Answer:

2hrs 40 minutes

Step-by-step explanation:

The formula for distance is expressed as:

$d=st, s=speed, t=time$

#The time taken to run:

$d=st\\\\t=d/s\\\\t_r=d/8$

#The time taken to walk:

$d=st\\\\t=d/s\\\\t_w=d/2$

#Since the distances are the same:

$d_r=8t_r,d_w=2t_w\\\\8t_r=2t_w\\\\t_r+t_w=4->t_w=4-t_r\\\\\therefore8t_r=2(4-t_r)\\\\8t_r=8-2t_r\\\\t_r=1\frac{1}{3} \hrs\\\\t_w=4-1\frac{1}{3}=2\frac{2}{3}\ hrs$

Hence, Dana spends 2hrs 40 minutes walking back

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3 years ago

A brother is 3 years older than his sister. Five years ago, the ratio of their ages was 4 : 3. Find the boy age.

Wewaii [24]

17 years old
12:9
12 + 5 is 17

5 0

2 years ago

Solve for x in the triangle,round your answer to the nearest tenth

Nuetrik [128]

Cosine = adjacent / hypotenuse

cos (49)= x/27
27 * cos(49) = x
27 * 0.656 = x
x = 17.7

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2 years ago

I need this asap someone help me plz

alexandr1967 [171]

Answer:

660 nails

Step-by-step explanation:

Take all of john's nails and multiply by 4.4 because 176/40 is 4.4. Multiply 4.4 by the john's other nails. Add the products together and thats your answer.

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2 years ago

I need help on this one aswell if anyone wants to help me.

Lelechka [254]

Answer:

y=63

Step-by-step explanation:

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2 years ago

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