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julsineya [31]
3 years ago
15

5x – y= 5 -2 + 3y = 13

Mathematics
1 answer:
qwelly [4]3 years ago
7 0
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A number divided by 3 with 19 added equals 36 what is the number
julsineya [31]
You do the sum backwards, 
36-16=17
17x3=51
Then you check it to make sure,
51/3=17
17+19=36
:) hope this hepled x
7 0
4 years ago
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Find the 15th term of the geometric sequence 1, -4, 16, ...
True [87]

Answer:

268,435,456

Step-by-step explanation:

Multiply by -4

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3 years ago
Simplify the expression by using a double-angle formula. 2 sin 31°cos 31°
qwelly [4]

The double angle formula for the sine is

\sin(2x) = 2\sin(x)\cos(x)

The right hand side is exactly your expression, where x = 31^\circ

So, rewriting the expression from right to left, we have

2\sin(31^\circ)\cos(31^\circ) = \sin(2\cdot 31^\circ) = \sin(61^\circ)

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3 years ago
Given triangle ABC with coordinates A(−6, 4), B(−6, 1), and C(−8, 0), and its image A′B′C′ with A′(−2, 0), B′(−5, 0), and C′(−6,
Zinaida [17]

Answer:

  The line of reflection is at y = x+6.

Step-by-step explanation:

The perpendicular bisector of AA' is a line with slope 1 through the midpoint of AA', which is (-4, 2). In point-slope form, the equation is ...

  y = 1(x +4) +2

  y = x + 6 . . . . . . . line of reflection

6 0
4 years ago
Help please! im not sure which graph is which
Wewaii [24]

WHat do you mean when you say you don't know "which graph is which"

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