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Ipatiy [6.2K]
3 years ago
5

What is the distance from C to D? A. 5 units B. 1 unit C. 25 units D. 7 units

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
5 0

Answer:

Option A

Step-by-step explanation:

According to the distance formula , for any 2 points P & Q whose coordinates are (x¹ , y¹) and (x² , y²) respectively. So ,

PQ = \sqrt{(x^{2} - x^{1} )^{2} + (y^{2} - y^{1})^{2} }

NOTE = HERE x² , y² DOESN'T MEAN THE SQUARES OF x & y . THEY ARE JUST COORDINATES.

According to the question ,

Coordinate of C = (2 , -1)

Coordinate of D = (5 , 3)

Using distance formula ,

CD = \sqrt{(5-2)^{2} + (3 -(-1))^{2} }

=> CD = \sqrt{3^{2} + 4^{2} } = \sqrt{9 + 16} = \sqrt{25} = 5

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Olivia takes twelve laps on a long track in fifteen minutes. how much time will it take her to skate thirty laps ?
Firdavs [7]

Answer:

C. 37.5 minutes


Step-by-step explanation:

You can set up a proportion to help you figure this out.

12/15=30/x (in this proportion, the number of laps are both on the numerator and the time it takes her is on the denomiator.)

Now, just cross multiply and your equations should be: 12·x=15·30, which equals to 12x=450.

Divide 12 on both sides and x=37.5


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3 years ago
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Answer:

volume of the square pyramid is:

V = s2h/3

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V(a)=122 . 8/3 \implies⟹ 144 . 8/3 \implies⟹ 1152/3 \implies⟹ 384 in3

for square pyramid B

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volume of square pyramid for B =

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V(b)=362 . 24/3 \implies⟹ 1296 . 24/3 \implies⟹ 31104/3 \implies⟹ 10368 in3

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Step-by-step explanation:

hope this helps if not let me know have a great day

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Answer:

Step-by-step explanation:

Based on the fact that it is congruent, it is also 48 degrees.

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3 years ago
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