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3 years ago

Y=3x+62x+4y=−4 What is the value of y in the system?

Mathematics

1 answer:

Marrrta [24]3 years ago

6 0

9514 1404 393

Answer:

y = 0

Step-by-step explanation:

We assume you want to find y such that ...

y = 3x +6
2x +4y = -4

Dividing the second equation by 2, we can write an expression for x.

x +2y = -2

x = -2y -2

Substituting this into the first equation gives ...

y = 3(-2y -2) +6

y = -6y -6 +6 . . . eliminate parentheses

7y = 0 . . . . . . . . . add 6y

y = 0 . . . . . . . . . . divide by 7

The value of y in the system of equations is 0.

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6.106x10^7 in standard form

Aleksandr-060686 [28]

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3 years ago

Find the 7th term of the number pattern of general term 5n-4

olchik [2.2K]

Answer:

Step-by-step explanation:

n = 7 so it is:

5(7) - 4

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3 years ago

11 to the 8th power divided by 11 to the 3rd power

borishaifa [10]

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3 years ago

Read 2 more answers

3. The rectangle below has an area of 297 in. Find the length of the diagonal.

saul85 [17]

9514 1404 393

Answer:

29.15 in

Step-by-step explanation:

The area of a rectangle is given by the formula ...

A = LW

Filling in the given information, we can find the missing side length.

297 in² = (27 in)h

h = (297 in²)/(27 in) = 11 in

The length of the diagonal can be found from the Pythagorean theorem.

d² = 27² + 11² = 729 +121 = 850

d = √850 = 5√34 ≈ 29.15476

The length of the diagonal is about 29.15 inches.

7 0

3 years ago

Determine whether the improper integral converges or diverges, and find the value of each that converges.

shusha [124]

Answer:convergent

Step-by-step explanation:

Given

Improper Integral I is given as

$I=\int_{-\infty}^{0}1000e^xdx$

$I=1000=\int_{-\infty}^{0}e^xdx$

integration of $e^x$ is $e^x$

$I=1000\times \left [ e^x\right ]^{0}_{-\infty}$

$I=1000\times I=\left [ e^0-e^{-\infty}\right ]$

$I=1000\times \left [ e^0-\frac{1}{e^{\infty}}\right ]$

$I=1000\times 1=1000$

so the integration converges to 1000 units

6 0

3 years ago