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omeli [17]
3 years ago
5

If the point (−1, −5) is reflected across the x-axis, what is the location of the new point? A) (5, 1) B) (1, 5) C) (1, −5) D) (

−1, 5)
Mathematics
1 answer:
olchik [2.2K]3 years ago
4 0

Answer:

D (-1, 5)

Step-by-step explanation:

In reflection along the x-axis,

x-coordonate remains unchanged and y-coordinate gets multiplied by -1

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What is the distance from C to D?<br><br> A. 5 units<br> B. 1 unit<br> C. 25 units<br> D. 7 units
Vera_Pavlovna [14]

Answer:

Option A

Step-by-step explanation:

According to the distance formula , for any 2 points P & Q whose coordinates are (x¹ , y¹) and (x² , y²) respectively. So ,

PQ = \sqrt{(x^{2} - x^{1} )^{2} + (y^{2} - y^{1})^{2} }

NOTE = HERE x² , y² DOESN'T MEAN THE SQUARES OF x & y . THEY ARE JUST COORDINATES.

According to the question ,

Coordinate of C = (2 , -1)

Coordinate of D = (5 , 3)

Using distance formula ,

CD = \sqrt{(5-2)^{2} + (3 -(-1))^{2} }

=> CD = \sqrt{3^{2} + 4^{2} } = \sqrt{9 + 16} = \sqrt{25} = 5

5 0
3 years ago
How do you simplify this?
lions [1.4K]

Answer:

sinA(cosA+sinA)*cosA

Step-by-step explanation:

(sinA(2cosA+sinA-cosA))/secA

sinA(cosA+sinA)/secA

sinA(cosA+sinA)*cosA

8 0
3 years ago
30 points!!! Help me on 1. 2. 3.
BaLLatris [955]
I think 1 is to press C
8 0
3 years ago
I. You deposit $25 in your account.
Katyanochek1 [597]

Answer:

ll and lll only

Step-by-step explanation:

D i believe is the right answer

6 0
3 years ago
Read 2 more answers
97.2
makvit [3.9K]

Answer:

Step-by-step explanation:

x = 774.37(0.972)

x = 752.68764

x = 752.69  km

descending order???? OK... 97652

4 0
2 years ago
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