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2 years ago

QUICK!TWO EXPRESSIONS THAT ARE EQUIVALENT TO 42x-56y!!!

Mathematics

1 answer:

abruzzese [7]2 years ago

5 0

Answer:

2(21x - 28y)

7(6x - 8y)

Step-by-step explanation:

<u>Given expression:</u>

42x - 56y

We can take 2 as common. The expression will become:

2(21x - 28y)

Now, back to the expression again.

We can also take 7 as common. The expression will become:

7(6x - 8y)

<u>So, the two expressions that are equivalent to 42x - 56y are:</u>

1) 2(21x - 28y)

2) 7(6x - 8y)

$\rule[225]{225}{2}$

Hope this helped!

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Describe the rotation of J

Serga [27]

Answer:

The coordinates of J' when rotating by 90° counterclockwise will be: J'(3, 1)

The coordinates of J' when rotating by 90° clockwise will be: J'(-3, -1)

Step-by-step explanation:

Square JKLM with vertices

J(1, -3)

K(5, 0)

L(8, -4)

M(4, -7)

We have to determine the answer for the image J' of the point (1, -3) when we rotate the point by 90° counterclockwise, we need to switch x and y, make y negative.

In other words, the rule to rotate a point by 90° counterclockwise.

P(x, y) → P'(-y, x)

As we are given that J(1, -3), so the coordinates of J' will be:

J(1, -3) → J'(3, 1)

Therefore, the coordinates of J' when rotating by 90° counterclockwise will be: J'(3, 1).

When the point is rotated by 90° clockwise, we need to switch x and y, make x negative.

In other words, the rule to rotate a point by 90° clockwise.

P(x, y) → P'(y, -x)

As we are given that J(1, -3), so the coordinates of J' will be:

J(1, -3) → J'(-3, -1)

Therefore, the coordinates of J' when rotating by 90° clockwise will be: J'(-3, -1)

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2 years ago

Jillian bought 1/2 pound of turkey and 1 1/3 pounds of cheddar cheese at the store.both items are on sale $6 per pound.how much

olchik [2.2K]

10 dollars is ther answer

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3 years ago

(9 1/3 + 4 2/3) +7 - (-12)= <br><br> A: 2 and 5/8<br> B: -13 and 13/16<br> C: 14<br> D: 4

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Answer:

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3 years ago

I am thinking of three numbers. The second number is 5 times the first. The third number is

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Answer:

3, 15, 14

Step-by-step explanation:

x + 5x + ( 5x -1) = 32

11x - 1 = 32

11x = 32 + 1

11x = 33

11x/11 = 33/11

x = 3

therefore

the first number is 3

the second is 5 × 3 = 15

the third number is 15 - 1 = 14

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2 years ago

Line t passes through points (10, 4) and (7, 9). Line u is parallel to line t. What is the slope of line u?

Margarita [4]

Answer: 3/5

Step-by-step explanation:

concept to know: the slope of perpendicular line is always opposite reciprocal

----------------------

Step 1. Find the slope of line t

(y2-y1)/(x2-x1)

=(4-9)/(10-7)

=-5/3

-------------------

Step 2. Apply the concept

Opposite reciprocal of (-5/3)=3/5

Hope this helps!! :)

Please let me know if you have any question

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3 years ago