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3 years ago

How many solutions does the system of equations have?

Mathematics

1 answer:

34kurt3 years ago

3 0

Answer:

No i will not

Step-by-step explanation:

fsdfsdfsdfsdfsdfsdfsdfasadfsdfasdfsdafdfgrdfgdfgrgdf

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Suppose y varies directly as x, and y=14 when x=4. What is the value of y when x=9

Katena32 [7]

Given :-

y varies directly as x, and y=14 when x=4.

To Find :-

the value of y when x=9 .

Solution :-

According to Question ,

y = kx ( k is constant )

When y = 14 and x = 4 ,

14 = k(4)
k = 14/4
k = 7/2

When x = 9 ,

y = 7/2*9
y = 63/2
y = 31.5

8 0

3 years ago

#7) Who is correct?

Kryger [21]

I think Faye is correct

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3 years ago

Stuart Rosenblatt earned a gross salary of $800 in one week. He received a paycheck that showed that taxes and other deductions

Artist 52 [7]

Answer: 875.25

How I got my answer: 800-206.75+82+200= 875.25

7 0

3 years ago

The rate of change of the volume of a snowball that is melting is proportional to the surface area of the snowball. Suppose the

Alisiya [41]

Answer:

According to the passage, we have the next equation:

$\frac{dV}{dt} = \frac{4}{3}\pi*3*r^{2}*\frac{dr}{dt} = K*(4\pi*r^{2} )$

where "K" is a proportional constant

Leaving at the end with the next equation:

$\frac{dr}{dt} = K$

Integrating the equation, we have:

$r=K*t+C$

where "C" is a constant

Then, we have the 2 conditions for the problem:

1) t=0 → r=10

Replacing in the equation, we have C = 10

2) t=5 → r=8

Replacing in the equation, we have K = -0.4

Finally, the time which the snowball will be completely melted will be when r = 0. So replacing in the equation

$0=-0.4*t+10$

t = 25 minutes

6 0

3 years ago

PLEASE HELP ILL GIVE BRAINLIESTTTT

Stels [109]

F(-3)= 1
f(1)= -1
if f(x)= -2 then x=3
if f(x)= 2 then x= -5

7 0

2 years ago

Read 2 more answers