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Oksi-84 [34.3K]
3 years ago
13

Identify the place of the 4 in the number: 45,348

Mathematics
1 answer:
MAXImum [283]3 years ago
7 0
Ten thousands and tens place.
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Here is the question in the image
Artist 52 [7]

The coordinates of the edges of the <em>mini-solar</em> cooker are (x₁, y₁) = (0, - 60) and (x₂, y₂) = (0, 60).

The distance between the two edges is 120 centimeters.

The equation for the <em>parabolic</em> mirror is x + 32 = (2/225) · y².

<h3>How to analyze a parabolical mini-solar cooker </h3>

Herein we must understand the geometry of the design of the <em>mini-solar</em> cooker to determine all needed information. The y-coordinates of the edges of the cooker are determined by Pythagorean theorem:

y = \pm \sqrt{(68\,cm)^{2}-(32\,cm)^{2}}

y = ± 60

The coordinates of the edges of the <em>mini-solar</em> cooker are (x₁, y₁) = (0, - 60) and (x₂, y₂) = (0, 60). The distance between the two edges is 120 centimeters.

Lastly, the equation of the <em>parabolic</em> mirror can be determined based on the equation of the parabola in <em>vertex</em> form:

x - h = C · (y - k)²     (1)

Where:

h, k - Coordinates of the vertex

C - Vertex constant

If we know that (h, k) = (- 32, 0) and (x, y) = (0, 60), then the vertex constant of the equation of the parabola is:

0 + 32 = C · 60²

C = 2/225

Then, the equation for the <em>parabolic</em> mirror is x + 32 = (2/225) · y².

To learn more on parabolae: brainly.com/question/21685473

#SPJ1

6 0
2 years ago
Round to the nearest percent.<br><br> From 80 pencils to 152 pencils.
user100 [1]

Answer:

90% Increase

Step-by-step explanation:

80+72=152

72/80= .9

6 0
3 years ago
Rewrite the equation by completing the square. 4 x^{2} -12 x +9 = 04x 2 −12x+9=0
DedPeter [7]

Answer:

  (2x -3)^2 = 0

Step-by-step explanation:

In this particular instance, the square is already complete. The rewrite is to show that.

  (2x -3)^2 = 0

__

In the general case, ...

  (ax +b)^2 = a^2x^2 +2abx +b^2

Comparing this form to the given left-side expression, we see that ...

  a = 2, b = -3

So, the trinomial is already a perfect square trinomial.

4 0
2 years ago
Write the equation of the line perpendicular to y=1/2x+3 that contains (5,-4)
vladimir1956 [14]

Answer:

y = -2x + 6

Step-by-step explanation:

y = -2x + b

-4 = -2(5) + b

-4 = -10 + b

6 = b

5 0
2 years ago
What is the solution to this system of linear equations?<br><br> x + y = 4<br><br> x − y = 6
Stells [14]

Answer:

x=5 , y= -1

Step-by-step explanation:

You can see that one of the y's is negative while the other is positive, so you can add them together.

Now, negative 1 + positive 1 = 0, so the y's cancel out leaving only the x's.

Remember you can't add one part without adding the other so x+x = 2x, and 4+6=10. This makes the final equation 2x=10.

You can simplify that into x=5. This gives you the answer for x

Then substitute x=5 into any of the two equations (doesn't matter) I'll use the first one. So if you substitute it you get 5+y=4.

Simplified, y= -1

Therefore, x= 5 and y=-1

5 0
2 years ago
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