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natima [27]
3 years ago
5

What is the distance between 7 and −11?

Mathematics
1 answer:
marta [7]3 years ago
4 0
The distance between 7 and -11 is 21
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3 years ago
Read 2 more answers
-6x+5y=1 and 6x+4y=10.substitution
nexus9112 [7]

Answer:

(23/27, 11/9)

Step-by-step explanation:

Given the simultaneous equation;

-6x+5y=1..... 1

6x+4y=10.... 2

Add both equations

5y + 4y = 1+10

9y = 11

y = 11/9

Substitute y = 11/9 into 1;

From 1;

-6x+5y=1.

-6x + 5(11/9) = 1

-6x + 55/9 = 1

-6x = 1- 55/9

-6x = (9-55)/9

-6x = -46/9

x = -46/-54

x = 23/27

The solution to the system of equation is (23/27, 11/9)

8 0
3 years ago
What is the reflection image of P (0, 0) after two reflections, first across x = -3 and then across y = -3?
valentinak56 [21]
Reference the image below if you need to.

We start at red point (0,0) and reflect across blue line x= -3.
This puts the point equidistance away on the opposite side at blue point (-6, 0).
That point is then reflected across green line y= -3,
and ends up at green point (-6, -6).

8 0
4 years ago
Express the complex number in trigonometric form. <br><br> -2i
IRINA_888 [86]
-2i=2(-i)=2\left(\cos\dfrac{3\pi}2+i\sin\dfrac{3\pi}2\right)
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3 years ago
HELP ME PLEASE !!!!!!!!
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Answer:

25 people would go in for eye surgery

Step-by-step explanation:

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6 0
3 years ago
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