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3 years ago

Solve the system of equations using the elimination method x+3y= -15 -3x+2y=23

Mathematics

1 answer:

lions [1.4K]3 years ago

6 0

Answer: i cannot see the equations so I can't solve it

Step-by-step explanation:

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3 years ago

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F(x) = 2x² + x at (-1, 1)

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Answer:

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3 years ago

Arrange the steps to perform this subtraction operation in the correct order.

taurus [48]

Answer:

=1.23*10^6

Step-by-step explanation:

We have to calculate

(1.93*10^7 )-(9.7*10^6)

In order to add or subtract two numbers in scientific notation, we have to make sure that the power of exponents in both numbers is same.

We have to reduce the power of 10 in first number from 7 to 6

So,

Step 1:

1.93*10^7=1.93*10*10^6

=10.93*10^6

Now,

Step 2:

=(1.93*10^7 )-(9.7*10^6 )

= 10.93*10^6- 9.7*10^6

Step 3:

=(10.93-9.7)*10^6

=1.23*10^6

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4 years ago

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The volume of a cone is 3πx3 cubic units and its height is x units. Which expression represents the radius of the cone’s base, i

dalvyx [7]

Answer:

r=3x

Step-by-step explanation:

The Volume of a Cone

The volume of a cone of radius r and height h is:

$\displaystyle V=\frac{1}{3}\pi hr^2$

We are given the volume of a cone is

$V=3\pi x^3$

Equating:

$\displaystyle \frac{1}{3}\pi hr^2=3\pi x^3$

Multiplying by 3:

$\pi hr^2=9\pi x^3$

Simplifying by pi:

$hr^2=9 x^3$

Since h=x:

$xr^2=9 x^3$

Dividing by x:

$r^2=9 x^2$

Taking square roots:

$r=\sqrt{9 x^2}=3x$

Thus: r=3x

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Bumek [7]

The answer would be 313

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4 years ago

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Solve the system of equations using the elimination method x+3y= -15 -3x+2y=23​

Solve the system of equations using the elimination method x+3y= -15 -3x+2y=23