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Anika [276]
3 years ago
5

A radio telescope has a parabolic surface, as shown below. If the telescope is 5 m deep and 40 m wide, how far is the focus from

the vertex? *
Mathematics
1 answer:
Montano1993 [528]3 years ago
4 0

Answer:

i think the answer is  8m

Step-by-step explanation:

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Find the image of (−3, 8) after a 270∘ rotation counterclockwise about the origin.
katrin [286]

Answer:

(8, 3)

Step-by-step explanation:

For a 270° rotation, the rule is that (x, y) turns into (y, -x)

In (-3, 8), -3 represents x and 8 represents y.

Our answer is then (y, -x), or (8, 3)

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2 years ago
What is the inverse of the given relation?<br> y=3x+12
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We are asked in the problem to determine the inverse of the relation y = 3x + 12. first step is to express the equation in terms of y, that is y -12 = 3x, then exchange the places of x and y, that is x - 12 = 3y. This is the final answer
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3 years ago
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Assume that you are going to open a checking account. You are examining different banks and banking accounts to
adell [148]

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b

Step-by-step explanation:

6 0
3 years ago
PLS HELP WILL GIVE BRAINLEST AND THANKS!!!!!!!!!!!
Stels [109]

Answer:  2 1/4 more flour for 9 servings

Step-by-step explanation: (a) how many total cups of flour are there per serving? show your work

1 1/2÷6= 3/2 x 1/6 = 3/12= 1/4 cups of flour per serving

(b) how many total cups of sugar (white and brown) are there per serving?show your work

3/4 + 1/3 = 9/12 + 4/12= 13/12= 1 1/12 total cups of sugar

13/12 ÷ 6/1 = 13/12 x1/6 = 13/72 per serving

(c) supposed you modify the recipe so that it makes 9 servings. How much more flour do you need for the modified recipe than you need for the original recipe?Show your work/

1/4 x 9 = 9/4 = 2 1/4 more flour for 9 servings.

8 0
3 years ago
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What are the factors of the expression (y-2)(x+3)
ivanzaharov [21]
(y-x) (2+3)= (yx)(5)
But am not sure it could be =(2-3) (y+x) = (1) (yx)
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3 years ago
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