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-Dominant- [34]

2 years ago

5

Which ordered pair is a reflection of (3, 7) across the y-axis?

1 answer:

worty [1.4K]2 years ago

3 0

Answer:

(-3, 7)

Step-by-step explanation:

It is like putting a mirror on the y-axis. It is asking what point is the photo negative of the point, like a mirror. You see yourself in the mirror but everything is opposite. Your right hand is your left. So which point is the photo negative of (3, 7)? (-3, 7) Because it is only across the y-axis, the y value stays the same.

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Jacob and Ali want to run from one corner of a football field to the opposite corner. The rectangular football field is 50 yards

svet-max [94.6K]

Answer:

Jacob ran 40 yards more than Ali.

Step-by-step explanation:

Football field is in the shape of a rectangle having dimensions 120 yards × 50 yards

Since Jacob runs around the perimeter of the field from one corner to other corner, therefore, distance run by Jacob = $(\text{Length+width})$

Distance run by Jacob = 50 + 120 = 170 yards

Ali runs through the middle of the field diagonally on a straight line.

Therefore, distance covered by Ali = $\sqrt{\text{length}^{2}+\text{width}^{2}}$

= $\sqrt{(50)^{2}+(120)^{2}}$

= $\sqrt{2500+14400}$

= $\sqrt{16900}$

= 130 yards

Now difference between the distance covered by Jacob and Ali

= 170 - 130

= 40 yards

Therefore, Jacob ran 40 yards more than Ali.

7 0

3 years ago

If Cos 30° equals rad 3/2 then the sin 60° equals <br><br> a) 0<br> b) 1/2<br> c) rad 3/2<br> d) 1

vovangra [49]

Answer:

c) rad 3/2

Step-by-step explanation:

If Cos 30° equals rad 3/2 then the sin 60° equals rad 3/2.

8 0

3 years ago

Can anyone help me in dis pls

Varvara68 [4.7K]

Answer:

B

Step-by-step explanation:

a^2 + b^2 = C^2

solve for b

b^2 = c^2 - a^2

square root on both sides of the equation and you get option b as your answer

7 0

3 years ago

Anyone can help me with my math homework please?

Vedmedyk [2.9K]

Answer:

Step-by-step explanation:

hello,

so we know y in terms of t and x in terms of t and we need to find y in terms of x

$x=21t^2\sqrt{x}=\sqrt{21}*t \ \ as \ \ t>=0 \ \ So\\t=\sqrt{\dfrac{x}{21}}$

and then

$y=f(x)=3\sqrt{\dfrac{x}{21}}+5=\sqrt{\dfrac{9x}{21}}+5=\sqrt{\dfrac{3x}{7}}+5$

hope this helps

4 0

3 years ago

A ream of paper contains 500 sheets of paper.Norm has 373 sheets of paper left from a ream.Express the protion of a norm has a f

Dima020 [189]

373/500
Divide both by 5:
74.6/100
74.6%
0.746

4 0

3 years ago