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Aleks [24]
3 years ago
6

Can you please answer this

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
8 0

Answer:

C is the correct answer

Step-by-step explanation:

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Find the constant of variation for the relation and use it to write an equation for the statement. Then solve the equation.
Alisiya [41]

Answer: b.

Step-by-step explanation:

Based on the information given, you can write the following expression:

y=\frac{k}{x^2}

Where k is the the constant of variation

If y=4/63 when x=3, then you can substitute these values into the expression and solve for k:

\frac{4}{63}=\frac{k}{3^2}\\k=9*\frac{4}{63}\\k=\frac{4}{7}

Substitute k into the expression. Then the equation is:

y=\frac{4}{7x^{2}}

Substitute x=5  into the equation. Then, y is:

y=\frac{4}{7(5)^{2}}=\frac{4}{175}}

8 0
4 years ago
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Solve the compound inequality:
Akimi4 [234]

Answer:

20 > x > 10

Step-by-step explanation:

30 > x + 10 > 20

(take ten on each side to get x on its own and to get your final answer which is...)

20 > x + 10 > 10

3 0
3 years ago
SOLVE EQUATION GRAPHICALLY<br>3x - 4y = - 7 and 5x - 2y = 0<br>​
Leona [35]

Answer:

hello!

the answer is :

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

(1, 5/2)  

Equation Form:

x = 1,y=

5/2

<h2 /><h2>pls branliest! :)</h2>

7 0
3 years ago
Add.
MrRissso [65]

Answer:

letter A) 7x² + 2x -3

Step-by-step explanation:

7x² -2x + 4x -3

7x² + (-2x + 4x ) -3

7x² + 2x -3

6 0
3 years ago
A bag contains yellow marbles and blue marbles, 20 in total. The number of yellow marbles is 1 less than 2 times the number of b
anastassius [24]

Answer:

There are, 13 yellow marbles and 7 blue marbles

Step-by-step explanation: 7 x 7 = 14 - 1 = 13 = 7  = 20 you're welcome

5 0
3 years ago
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