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adell [148]
3 years ago
6

You can answer only this question, it's ok:

Mathematics
1 answer:
Sophie [7]3 years ago
7 0
1)100 or A
Angle = |30*H - (11/2)*M|, where H is the hours hand and M is the minutes hand

in this case: H = 4, M= 40
30*4 - (11/2)*40 = 120 - 220 = -100 = |-100| = 100
2)x=4y or C
If you plug in 0,0 you will get 0=4×0 or 0,0

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Help asappppp? i’m having trouble on wat the 1/4 point is
blagie [28]

Answer:

  (-14, 5.5)

Step-by-step explanation:

Perhaps the easiest way to find the 1/4 point is to find (x, y), then find the midpoint between that and M.

  (x, y) = 2M -(13, 25) = 2(-5, 12) -(13, 25) = (-23, -1)

Then the 1/4 point is ...

  ((-23, -1) +M)/2 = ((-23, -1) +(-5, 12))/2 = (-28, 11)/2 = (-14, 5.5)

_____

If we call the end points A(x, y) and B(13, 25), then we know ...

  M = (A+B)/2

  A = 2M -B . . . . we'll need this in a bit

and the 1/4 point Q is such that ...

  (Q -A)/(B -A) = 1/4

  4Q -4A = B -A . . . . cross multipliy

  Q = (B +3A)/4 = (B +3(2M -B))/4 = (6M -2B)/4 . . . . solve for Q

  Q = (3M -B)/2 . . . . reduce the fractions

  Q = (3(-5, 12) -(13, 25))/2 = (-28, 11)/2 = (-14, 5.5) . . . as above

6 0
3 years ago
If 2x – 1 is a factor of 16x4<br> 24x3 + 2x + f, find f.
Nastasia [14]

Answer:

f = -5

Step-by-step explanation:

If 2x – 1 is a factor of 16x4 + 24x3 + 2x + f, find f.

If 2x - 1 = 16x⁴ + 24x³ + 2x + f, find f.

2x - 1 = 0

2x = 1

x = 1/2

Hence

f(1/2) = 16(1/2)⁴ + 24(1/2)³ + 2(1/2) + f

= 16(1/16) + 24(1/8) + 1 + f

= 1 + 3 + 1 + f

= 5+ f

f = -5

7 0
3 years ago
Sam rides his bike at a rate of 15 miles per hour. How many feet per minute is this?
Triss [41]
Si tu prend un chien de 12k je crois que ta réponse va donner 15000
7 0
3 years ago
Can someone help please. i’m struggling.
mario62 [17]

Answer:

try using desmos. its a graphing calculator

Step-by-step explanation:

7 0
3 years ago
Find x in this proportion.<br> 5/2x=25/4<br> x=__?<br> 2/5<br> 5/2<br> 4/5<br> 8/5
8_murik_8 [283]
Correct answer is A.

\frac{5}{2x} = \frac{25}{4} &#10;\\&#10;\\2x\times 25=5\times 4&#10;\\50x=20&#10;\\&#10;\\x= \frac{20}{50}= \frac{2}{5}
8 0
3 years ago
Read 2 more answers
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