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djyliett [7]
3 years ago
11

James drove to his brother’s house, which was 225 miles away. It took him 3 hours to get there. What was his average speed per h

our
75

55

85

62.5
Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
7 0

Answer:

75

225÷3=75

Step-by-step explanation:

hshshshshs

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For what values of k
sergey [27]

If y = cos(kt), then its first two derivatives are

y' = -k sin(kt)

y'' = -k² cos(kt)

Substituting y and y'' into 49y'' = -16y gives

-49k² cos(kt) = -15 cos(kt)

⇒   49k² = 15

⇒   k² = 15/49

⇒   k = ±√15/7

Note that both values of k give the same solution y = cos(√15/7 t) since cosine is even.

3 0
3 years ago
The Malcolms are taking a trip. Midville is 214 miles
Juliette [100K]

Answer:

642 miles

Step-by-step explanation:

Distance of Midville from their home = 214 miles

Walesburg is 3 times as far.

How far is Walesburg from their home?

Distance of Walesburg from their home = 3 × Distance of Midville from their home

= 3 × 214 miles

= 642 miles

Distance of Walesburg from their home = 642 miles

8 0
3 years ago
-(1/x+3) +4
nlexa [21]

9514 1404 393

Answer:

  • left 3 units
  • up 4 units
  • shape: lower left image

Step-by-step explanation:

For a parent function f(x), the transformations ...

  g(x) = a×f(x -h) +k

cause ...

  • vertical expansion by 'a', reflection over x-axis if negative
  • right shift by 'h'
  • up shift by 'k'

Here, we have parent function f(x) = 1/x with a=-1, h=-3, k=4. Then the transformations are ...

  horizontal shift left 3 units

  vertical shift up 4 units

  reflection over x-axis, so curves are above-left and below-right of the reference point (Note that the reflection is done <em>before</em> the translation.)

4 0
2 years ago
Cual es la ecuación de la recta vertical que pasa por (2,3)?
NeTakaya

Answer:

a

Step-by-step explanation:

6 0
3 years ago
PLEASE ANSWER ASAP + BRAINLIEST!!!!
alekssr [168]

Answer:

+-1/4

Step-by-step explanation:


8 0
3 years ago
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