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Firlakuza [10]
3 years ago
10

The equation for the cross-section of a parabolic satellite TV dish is stated below, measured in inches. How far is the focus fr

om the vertex of the cross-section? _____ in. Enter a number, rounded to the nearest tenth.
y=1/38x^2
Mathematics
1 answer:
leonid [27]3 years ago
3 0
<span> The coordinates of the focus are </span><span><span>(<span>h,k+<span>1/<span>4a</span></span></span>)</span><span>(<span>h,k+<span>1/<span>4a</span></span></span>)

y=1/38*x^2
here h=0,k=0 ,a=1/38

so if we put values to find focus
focus(0,0+1/4*1/38)=(0,9.5)
</span></span><span>
</span>
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Create a model to show 2 × 5.
Sliva [168]

Answer:

The model is shown in the attached picture. The solution is 10.

Step-by-step explanation:

There are two way of showing a model for 2×5

  1. The tape diagram has 2 equal-sized parts of 5
  2. The tape diagram has 5 equal-sized parts of 2

Both models give the same solution:

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  2. 2+2+2+2+2=10

In the attached picture we can show two types of diagram.

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4 0
2 years ago
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I don’t know how to do this. Ignore my work it’s probably wrong. Please help.
wariber [46]

Check the picture below.

A)

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C)

at t = 1, h(1) = 82, and at t = 2 h(2) = 34, so it went from 82 to 34, for a difference of 48.

does it fall the same distance on both intervals? well, they're different, so nope.

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