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umka2103 [35]
3 years ago
15

DescriptionIn mathematics, the Poincaré conjecture is a theorem about the characterization of the 3-sphere, which is the hypersp

here that bounds the unit ball in four-dimensional space. The conjecture states: Every simply connected, closed 3-manifold is homeomorphic to the 3-sphere.
Am I right
Mathematics
1 answer:
marishachu [46]3 years ago
6 0
I believe you are right
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If the discriminant of an equation is negative, which of the following is true of the equation
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The answer is A. it has two complex solutions
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3 years ago
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A player shoots a basketball from a height of 6 feet. The equation, h = -16t^2 + 25t + 6, gives the height, h , of the basketbal
noname [10]

Answer:

\boxed {\boxed {\sf 7.5 \ feet}}

Step-by-step explanation:

We are given this function for the height (h) after t seconds:

h=-16t^2+25t+6

Seconds is t and we want to find the height after 1.5 seconds. Plug 1.5 in for t.

h= -16(1.5)^2+25(1.5)+6

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.

Solve the exponent first.

  • (1.5)²= 1.5*1.5=2.25

h= -16(2.25)+25(1.5)+6

Multiply.

h= -36+25(1.5)+6

h= -36+37.5+6

Add.

h=1.5+6=7.5

This is already rounded to the nearest tenth, so it is the answer.

After 1.5 seconds, the basketball is at a height of 7.5 feet.

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3 years ago
1. The number of letters received in the mail over the past week is recorded.
gregori [183]

Answer:

nose mijito pide ayuda a tus family

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Makes de following combinet operations
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Hinges maybe idk lml?
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Help me with math question please, will give 20 points
Kisachek [45]

in step 2 he made his first mistake

1/2(n-4)-3=3-(2n+3)

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1/2n-2-3=3-(2n+3)

in the second step he put 5 instead of 2.

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3 years ago
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