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Snezhnost [94]
3 years ago
6

How did the musician keep his sousaphone clean?

Mathematics
2 answers:
Sedbober [7]3 years ago
8 0
  the answer  in the attached figure

Leno4ka [110]3 years ago
5 0

Answer:

#1) I; #2) W; #3) S; #4) E; #5) A; #6) O; #7) U; #8) H; #9) B; #10) P; #11) T

Step-by-step explanation:

#1)  For ray DB, we want a symbol whose first letter is D, second letter is B and has a picture of a ray (arrow at one end) above it.  This is I.

#2) For line DB, we want the letters D and B in that order with a line (arrows at both ends) over it  This is W.

#3) For segment DB, we want the letters D and B in that order with a line segment (no arrows) over it.  This is S.

#4) For the ray opposite DB, we would want the ray DL.  This means we want the letters D and L in that order with a ray (arrow at one end) over it.  This is E.

#5) Ray DB and segment RA intersect at point A.  This is choice A.

#6) Since A is between D and B, this would give us DAB, or D-A-B.  This is O.

#7) The length of segment DB is shown as just the two letters of the segment with nothing over it.  This is U.

#8) Segment DM and MA together make segment DA, or AD.  The length of this segment would be written as either DA or AD; this is H.

#9) The endpoint of ray BA is B.  This is choice B.

#10) The union of LD and DM is segment LM.  This is choice P.

#11) The intersection of ray DS and ray SD is segment DS.  This is choice T.

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Let u= <4,3>. Find the unit vector in the direction of u, and write your answer in component form.
aksik [14]
Take the vector u = <ux, uy> = <4, 3>.

Find the magnitude of u:

||u|| = sqrt[ (ux)^2 + (uy)^2]

||u|| = sqrt[ 4^2 + 3^2 ]

||u|| = sqrt[ 16 + 9 ]

||u|| = sqrt[ 25 ]

||u|| = 5

To find the unit vector in the direction of u, and also with the same sign, just divide each coordinate of u by ||u||. So the vector you are looking for is

u/||u||

u * (1/||u||)

= <4, 3> * (1/5)

= <4/5, 3/5>

and there it is.

Writing it in component form:

= (4/5) * i + (3/5) * j

I hope this helps. =)
3 0
3 years ago
Change each of the following decimals to a fraction. Reduce your answer to its lowest terms.
cluponka [151]
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2 years ago
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Allisa [31]

Answer:

Infinite Solutions

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6 0
2 years ago
An animal shelter spends 5.50 per day to care for each bird and 8.50 per Day to care for each cat and a notice that the shelter
Deffense [45]

Answer:

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Step-by-step explanation:

First, I wrote my two equations:

5.5x +8.5y = 291.5

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Next, I got the variable y by itself in the second equation. Subtract x to get y = -x + 41. Then, I substituted what y equaled into the first equation. It should look like this: 5.5x + 8.5(-x+41) = 291.5. Distribute 8.5 to get 5.5x -8.5x + 348.5 = 291.5. Subtract 5.5x and 8.5x to get -3x. It should look like this: -3x + 348.5= 291.5. Subtract 348.5 from 291.5 to get -57. Now, you should have -3x = -57. Divide -3 from both sides, to get x = 19. So, there are 19 birds. If you want to go even further, 41-19= 22, which means there are 22 cats. Hope this helped!

6 0
3 years ago
What is (3×10) ×8= ------ × (10×8) elementary 5th grade
Tamiku [17]
This is an example of the commutative property of multiplication.

That property states: (a \times b) \times c = a \times (b \times c)

So using that property, we can figure out that 3 should be in the blank.
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3 years ago
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