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Assoli18 [71]
4 years ago
9

Point E(0,-2) is a vertex of a square DEFG. After a 90degrees clockwise rotation of the square about the orgin, which of the fol

lowing is the location of E?
1.(-2,0)
2.(2,0)
3.(2,2)
4.(0,2)
Mathematics
1 answer:
masya89 [10]4 years ago
7 0
When rotating 90 degrees clockwise, you (x,y) becomes (-y,x) if i'm not mistaken. Your answer then becomes (2,0). Please mark brainiest and hope this helps :D
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A line passes through (2,-1) and (4,5)
MrRissso [65]

Answer:

Step-by-step explanation:

The equation of a straight line can be represented in the slope-intercept form, y = mx + c

Where c = intercept

Slope, m =change in value of y on the vertical axis / change in value of x on the horizontal axis

change in the value of y = y2 - y1

Change in value of x = x2 -x1

y2 = final value of y

y 1 = initial value of y

x2 = final value of x

x1 = initial value of x

The line passes through (2,-1) and (4,5),

y2 = 5

y1 = - 1

x2 = 4

x1 = 2

Slope,m = (5 - - 1)/(4 - 2) = 6/2 = 3

To determine the intercept, we would substitute x = 4, y = 5 and m= 3 into y = mx + c. It becomes

5 = 3 × 4 + c

c = 5 - 12 = - 7

The equation becomes

y = 3x - 7

5 0
3 years ago
I’ll give brainliest to the right answer plz help
BigorU [14]

9514 1404 393

Answer:

  water

Step-by-step explanation:

Comparison of numbers can be done a couple of different ways. One way is to subtract one from the other. If the difference is positive, the minuend (first number) is the larger of the two.

Another way is to divide one number by the other. If the ratio is more than 1, then the numerator is the larger number.

For numbers in scientific notation, the division is perhaps the easiest. Here, that gives you ...

  \displaystyle\frac{\text{water mass}}{\text{oxygen mass}}=\frac{2.99\times10^{-26}\text{ kg}}{2.66\times10^{-26}\text{ kg}}=\frac{2.99}{2.66}\approx 1.12

This value is greater than 1, so the mass of a water molecule is greater.

__

You will note that the multipliers (10^-26 kg) cancelled because they were equal. If they are unequal, the usual rules of exponents apply.

5 0
3 years ago
At a farmers market, a package of pears weighs 3lb and cost $9. Bananas are priced at 4lb per dollar. Use rates to explain witch
LiRa [457]

Answer:

The pears are more expensive per pound

Step-by-step explanation:

Find the cost per pound of the pears and bananas by dividing the cost by the number of pounds:

Pears:

9/3

= 3 ($3 per pound of pears)

Bananas:

1/4

= 0.25 ($0.25 per pound of bananas)

Since 3 is larger than 0.25, this means the pears are more expensive per pound.

7 0
3 years ago
Please help if you want.
Alexxandr [17]

Answer:

I'm 92% sure its a

8 0
3 years ago
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If you take a number, times by 5 then subtract 9. You get the same as if you took the number, times by 4 then add 1. What is the
Veronika [31]

Answer: 17

Step-by-step explanation:

4 0
3 years ago
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