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Amanda [17]
3 years ago
12

Please help me on (D) 1, and 2

Mathematics
1 answer:
ki77a [65]3 years ago
3 0
Cant see it
what does it say

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How do I solve equation 24=2a + 6
algol [13]

Answer:

9

Step-by-step explanation:

24 - 6 = 18 divided by 2 is 9 so a must be 9

8 0
3 years ago
36+81<br><br><br> Rewrite this using Distributive Property
Elena-2011 [213]

Answer:

3(12+27)

Step-by-step explanation: 3 can go into both of those numbers so u would just divide that by 3 with 36 and 81.

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3 years ago
A contestant on a game show has 30 points. She answers a quest on correctly to win 15 points. Then she answers a question incorr
Morgarella [4.7K]
The contestants total number of points is 20.

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45 - 25 = 20 total points
7 0
3 years ago
Read 2 more answers
A basketball gymnasium is 25 meters high, 80 meters wide and 200 meters long. We want to connect two strings, one from each of t
Rudiy27

Answer:

a) the centre is at (12.5 m, 40 m , 100 m ) with respect to our position

b) the length of the strings S will be 216.85 m

c) the angle that is formed by the strings is  1.23 rad

Step-by-step explanation:

assuming that we stand on one of the corners on the floor , so our coordinates are (0,0,0)  , then the coordinates of the center of the gymnasium   are found through

x center = (25 + 0)/2 = 12.5 m

y center = (80+ 0)/2 = 40 m

z center = (200+ 0)/2 = 100 m

then the centre is at (12.5 m, 40 m , 100 m ) with respect to our position

b) the length of the strings S will be the modulus of the vector that points from our position to the diagonally opposite corners

|S| = √(25²+80²+200²) = 216.85 m

c) the angle can be found through the dot product of the vectors that represent the strings S₁ and S₂

S₁ =(25,80,10)

S₂ =(-25,80,100)

then

S₁*S₂ = 25*(-25) +80*80 + 100*100 = 15775

but also

S₁*S₂ = |S₁||S₂| cos θ = |S|² * cos θ

S₁*S₂ =  |S|² * cos θ

cos θ= S₁*S₂/|S|²

θ= cos ⁻¹ ( S₁*S₂/|S|² ) = cos ⁻¹ [15775/(25²+80²+200²)] = 1.23 rad

7 0
3 years ago
A farm is 5 ha in size it is 1000 by
julia-pushkina [17]
Your answer is 200 please give me a rate and thanks ;)
3 0
3 years ago
Read 2 more answers
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