Given that D(x)=2 select all of the following that are true statements

Answers

Answer 1

Answer: If you're going to do a multiple choice question, please include the choices so we can better help you!

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Can you tell me what is 15-2x=3x

Answers

15 - 2x = 3x
15 = 3x + 2x
15 = 5x
5x = 15
x = 15/5 = 3

The answer is 3x because first you will add 2x on both sides which will give you 5x on the other side. Then you divide 5x on both sides. 15/5x=3x

Diagonals AC and BD of a rhombus ABCD meet at O . If AC=8cm and BD=6cm , find sin √OCD.

Answers

Due to the symmetry of the rhombus; AC = 2OC and BD = 2OD. Hence, we can say that OC is 4cm and OD is 3cm. Then we can say that sin(OCD) = OC/CD [CD = sqrt(OC^2 + OD^2)].

At the end, did you mean sqrt(sin(ocd)) or sin(sqrt(ocd)). Either way you can find angle OCD by doing arcsin(OC/CD).

What is the solution of this linear system?3x + 5y = -1
2x − 5y = 16
(-3, 2)
(-3, -2)
(3, -2)
(2, -3)

Answers

  3x + 5y = -1
  2x - 5y = 16
  5x = 15
5 5
  x = 3
  3x + 5y = -1
3(3) + 5y = -1
9 + 5y = -1
- 9   - 9
5y = -10
5 5
y = -2
  (x, y) = (3, -2)

The answer is C.

Find the value of x (pic attached)

Answers

Answer: x=4, I added a photo of my work in case you need it I hope it helps

Answer:

x=4

Step-by-step explanation:

they are the same

what you do is take 4x+23 and make it equal to 10x-1

4x+23=10x-1

+1 +1

4x+24=10x

-4x -4x

24=6x

/6 /6

x=4

If a sequence is defined recursively by f(0)=2 and f(n+1)=-2f(n)+3 for n is greater than or equal to 0, then f(2) is equal to...?

Answers

We start with f(0) = 2, we can use this value to find out the next value f(1) in our relation.

f(1) = -2 f(0)+3 = -2(2) + 3 =- 4 +3 =-1 Now we know f(1) we can work out f(2):

f(2) = -2 f(1)+3 = -2( -1)+3 = 2 +3 = 5.

So f(2) = 5

What is 80% of 38 ? plzzzz help

Answers

Answer:

30.4

Step-by-step explanation:

80x38/100

80/100 *x/38
X=(38*80)/100
X=30.4

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