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Step2247 [10]
3 years ago
12

What are the solutions to cos 2x = - 1​

Mathematics
1 answer:
N76 [4]3 years ago
4 0

Answer:

X can be - 1/2 or 0.5

2x0.5=-1

Step-by-step explanation:

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Nataly [62]

4)

Non linear:

y = 6 -x^2

y = 2x^2 + 2

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5)

Rate of change is also the slope

= (72 - 69) / (51 - 48)

= 3/3

= 1

Rate of change = 1

6)

First you need to find slope

(3,0) and (5,2)

Slope = (2 - 0)/(5-3) =2/2 = 1

Equation

y - 0 = 1(x - 3)

y = x - 3

Answer:

Tyler's function is correct as y = x - 3, it matched the above.

6 0
3 years ago
The coordinates of A, B, and C in the diagram are A (p, 4), B (6, 1 ), and C (9, q). Which equation correctly relates p and q? ↔
aivan3 [116]

Answer:

  D.  p + q = 7

Step-by-step explanation:

The slope of AB is ...

  mAB = (y2 -y1)/(x2 -x1) = (1 -4)/(6 -p) = -3/(6 -p)

The slope of BC is ...

  mBC = (q -1)/(9 -6) = (q -1)/3

We want the product of these slopes to be -1:

  mAB·mBC = -1 = (-3/(6 -p))·((q -1)/3)

  -(q-1)/(6 -p) = -1 . . . . cancel factors of 3

  q -1 = 6 -p . . . . . multiply by -(6 -p)

  q + p = 7 . . . . . matches choice D

8 0
3 years ago
3 Which expression is equivalent to<br> 19 - 27?
Elanso [62]

Answer: 19 + (-27)

Step-by-step explanation:

4 0
3 years ago
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umka21 [38]

Answer:

The answer is 8.30

Step-by-step explanation:

Using cos 41 = x/11

x = cos 41 × 11

x = 8.30

4 0
3 years ago
One of the tables shows a proportional relationship.
IRINA_888 [86]
The 2nd option is the answer :)!
4 0
3 years ago
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