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2 years ago

Sylvie finds the solution to the system of equations by graphing.

Mathematics

1 answer:

Taya2010 [7]2 years ago

4 0

Answer:

The solution is at (-0.5,0.5).

Step-by-step explanation:

I graphed both equations on the graph below to show you where the solution of the system is.

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Im giving 50 points

uysha [10]

-12+8x+2x=2x-8
10x-12=2x-8
8x=4
x=1/2
C

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2 years ago

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No Spam!!!! I will mark brainliest whoever properly answers the question. Identify the binomial that is a factor of the polynomi

Anestetic [448]

Answer:

4.78x

Step-by-step explanation:

how've 7,.8*x 3n by 6y is =4.78x

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2 years ago

Element X decays radioactively with a half-life of eight minutes. If there are 800 g of element X, how long, to the nearest 10th

Harman [31]

Answer: 41.5 min

Step-by-step explanation:

This problem can be solved with the Radioactive Half Life Formula:

$A=A_{o}.2^{\frac{-t}{h}}$ (1)

Where:

$A=22 g$ is the final amount of the radioactive element

$A_{o}=800 g$ is the initial amount of the radioactive element

$t$ is the time elapsed

$h=8 min$ is the half life of the radioactive element

So, we need to substitute the given values and find $t$ from (1):

$22 g=(800 g) 2^{\frac{-t}{8 min}}$ (2)

$\frac{22 g}{800 g}=2^{\frac{-t}{8 min}}$ (3)

$\frac{11}{400}=2^{\frac{-t}{8 min}}$ (4)

Applying natural logarithm in both sides:

$ln(\frac{11}{400})=ln(2^{\frac{-t}{8 min}})$ (5)

$-3.593=-\frac{t}{8 min}ln(2)$ (6)

Clearing $t$ :

$t=41.46 min \approx 41.5 min$ This is the time elapsed

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2 years ago

Angles 5 and 2 are??

Fed [463]

Answer:

Angles 5 and angle 2 are supplementary angles

Step-by-step explanation:

Angle 2 and angle 6 are corresponding angles and corresponding angles are equal when we have parallel lines

Angles 5 and angle 6 are supplementary angles since they form a line

Replace angle 6 with angle 2 since they are equal

Angles 5 and angle 2 are supplementary angles

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3 years ago

A room is 15 feet tall. An architect wants to include a window that is 6 feet tall. The distance between the floor and the botto

Ivenika [448]

Answer:

the independent variable in this equation is a because its the answer and cannot be changed

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2 years ago