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2 years ago

Point B, located at (-4, -7), is reflected over the y-axis. What are the coordinates of B'?

Mathematics

2 answers:

laila [671]2 years ago

7 0

The answer would be : (-4,7) (option A).

Hope this helps !

Photon

strojnjashka [21]2 years ago

3 0

(-4,7) answer A
if u reflect it over y axis

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What is the area pls

grandymaker [24]

Answer:

276 unit^2.

Step-by-step explanation:

This area is the sum of the area of 2 rectangles

= 12 * 13 + 8 * 15

= 156 + 120

= 276.

6 0

3 years ago

Create the linear equation from the points (3,3) and (1,-5).

Kisachek [45]

Answer:

$-4x + y = -9\:or\:y = 4x - 9$

Step-by-step explanation:

First, find the rate of change [slope]:

$\displaystyle \frac{-y_1 + y_2}{-x_1 + x_2} = m \\ \\ \frac{-3 - 5}{-3 + 1} = \frac{-8}{-2} = 4$

Then, plug these coordinates into the Slope-Intercept Formula instead of the Point-Slope Formula because you get it done much swiftly that way. It does not matter which ordered pair you choose::

−5 = 4 + b

$\displaystyle -9 = b \\ \\ y = 4x - 9$

If you want it in Standard Form:

y = 4x - 9

- 4x - 4x

_________

$\displaystyle -4x + y = -9$

_______________________________________________

3 = 4[3] + b

$\displaystyle -9 = b \\ \\ y = 4x - 9$

y = 4x - 9

- 4x - 4x

_________

$\displaystyle -4x + y = -9$

** You see? I told you it did not matter which ordered pair you choose because you will ALWAYS get the exact same result.

I am joyous to assist you anytime.

7 0

3 years ago

There are 25 students in a class at the beginning of the school year and the average number of siblings for each student is 3 a

kotegsom [21]

Answer:

3 5/26

Step-by-step explanation:

You can work this a couple of ways.

1. Find the total number of siblings for the current students (25×3), add the new number of siblings (8) and students (1), then recompute the average.

(25×3 + 1)/(25 +1) = 83/26 = 3 5/26

___

2. Find the difference of the number of siblings from average, and divide that difference by the new total number of students. This will be the change in the average.

difference from average = 8 -3 = 5

difference divided by new student total = 5/26

new average = 3 + 5/26 = 3 5/26

3 0

3 years ago

Number two plz??????

ziro4ka [17]

It would be 405 because 37×9=333 and 24×3=72 then add 333+72=405

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2 years ago

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Beth and Dave are hiking on a

Goryan [66]

Answer:

3 miles

Step-by-step explanation:

5-2=3

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3 years ago