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Galina-37 [17]
3 years ago
11

A= 2/5 two fifths c= 1/4 one fourths a/c=?

Mathematics
1 answer:
katrin2010 [14]3 years ago
3 0
I hope this helps you

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The variable r is directly proportional to the square of t, and r = 144 when t = 72.
Paul [167]

Answer:

k=0.023

Step-by-step explanation:

r \alpha  {t }^{2}  \\ r = k {t}^{2}  \\ 144 = k \times  {72 }^{2}  \\ k =   \frac{144}{ {72 }^{2} }   \\ k = 0.023 \\ the \: eqn \: is \: therefore \\ r = 0.023 \times  {t}^{2}

4 0
3 years ago
Are these shapes similar? If so please explain
STALIN [3.7K]

Answer:

yes

Step-by-step explanation:

because it is the same shape.

8 0
3 years ago
HELP PLEASE (:
pav-90 [236]

Answer:


Please see below.

Explanation:


The coordinates of point C are (a+b,c).


The coordinates of the midpoint of diagonal ¯¯¯¯¯¯AC are (a+b2,c2).


The coordinates of the midpoint of diagonal ¯¯¯¯¯¯BD are (a+b2,c2).


¯¯¯¯¯¯AC and ¯¯¯¯¯¯BD intersect at point E with coordinates (a+b2,c2).


By the definition of midpoint, ¯¯¯¯¯¯AE≅¯¯¯¯¯¯CE and ¯¯¯¯¯¯BE≅¯¯¯¯¯¯DE.


Therefore diagonals ¯¯¯¯¯¯AC and ¯¯¯¯¯¯BD bisect each other.


8 0
3 years ago
An online music club sells compact discs for $9 each plus $1.50 shipping and handling per order. Maria’s total bill was $82.50.
AVprozaik [17]

Answer:

9

Step-by-step explanation:

The equation is

9x + 1.50 = 82.50

You must isolate the 9x , to do so you have to subtract 1.50 from both sides.

9x + 1.50 = 82.50

      -1.50    -1.50

9x = 81

isolate the variable (x), to do so you have to divide both sides by 9

9x = 81

/9     /9

=

x = 9

4 0
4 years ago
Which of the following relations is a function? A. (-8, 1), (0, -5), (2, 5), (5, 1) B. (-8, 4), (0, 6), (-8, 3), (5, 2) C. (2, 1
zavuch27 [327]
The correct answer is A.
Each x-value is unique and has a corresponding y-value.
8 0
3 years ago
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