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Vika [28.1K]
3 years ago
7

A piece of fabric measures 3.9 meters express this length in centimeters

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
6 0
390 centimeters because u get centimetres out of meters u multiply by 100
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Find the area of the triangle that divides the parallelogram in half.​
nignag [31]

equation: 1/2bh

workings...

13x9= 117

117/2=58.5

answer: 58.5cm^2

4 0
3 years ago
Good morning!
den301095 [7]

Answer:

  • C. 0.75 in

Step-by-step explanation:

<u>Given</u>

  • d = 5 in
  • V = 176.715 in³

<u>Find the height of cylinder:</u>

  • V = πr²h
  • π(5/2)²h = 176.715
  • h = 176.715/(6.25π)
  • h = 9 in

<u>Sickness of each cookie is:</u>

  • 9/12 = 0.75 in

Correct choice is C

7 0
3 years ago
What is the rescursive formula for this geometric sequence? 7, -14, 28, -56
Anastasy [175]
Well, from looking at the numbers listed, they’re all multiplied by -2, (negative two) and so on, as you go through the number sequence.
5 0
3 years ago
Read 2 more answers
Which is the equation of a parabola with a directrix at y = −3 and a focus at (5, 3)?
kramer

Answer:

y = 1/12 (x − 5)²

Step-by-step explanation:

We can solve this graphically without doing calculations.

The y component of the focus is y = 3.  Since this is above the directrix, we know this is an upward facing parabola, so it must have a positive coefficient.  That narrows the possible answers to A and C.

The x component of the focus is x = 5.  Since this is above the vertex, we know the x component of the vertex is also x = 5.

So the answer is A. y = 1/12 (x−5)².

But let's say this wasn't a multiple choice question and we needed to do calculations.  The equation of a parabola is:

y = 1/(4p) (x − h)² + k

where (h, k) is the vertex and p is the distance from the vertex to the focus.

The vertex is halfway between the focus and the directrix.  So p is half the difference of the y components:

p = (3 − (-3)) / 2

p = 3

k, the y component of the vertex, is the average:

k = (3 + (-3)) / 2

k = 0

And h, the x component of the vertex, is the same as the focus:

h = 5

So:

y = 1/(4×3) (x − 5)² + 0

y = 1/12 (x − 5)²

3 0
3 years ago
I believe the answer is d is this correct?
JulijaS [17]

Answer:

yes it is correct

Step-by-step explanation:

3 0
3 years ago
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