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muminat
3 years ago
5

Please help me with my algebra homework.

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
8 0

Answer:

c. x=1,000

Step-by-step explanation:

log x = 3

Imagine that it's log10 x = 3

So, x =  10^3 (10 to the third power)

x = 10 * 10 * 10

x = 1,000

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What is the equation of the line that goes through (-5,0) and (-4,4)
Tasya [4]

Answer:

y=4x+20

Step-by-step explanation:

To write an equation, use the slope-intercept equation:

y=mx+b

M is the slope and b is the y-intercept.

First, find the slope by using the slope formula for when you have two points:

\frac{y(2)-y(1)}{x(2)-x(1)}=\frac{rise}{run}

Rise over run is the change in the y-axis over the change in the x-axis. Substitute values:

(-5,0)(-4,4)\\(-5(x1),0(y1))\\(-4(x2),4(y2))\\\\\frac{4-0}{-4-(-5)}

Simplify parentheses (two negatives make a positive) and simplify:

\frac{4-0}{-4+5}\\\\\frac{4}{1}=4

The slope, m, is 4. Insert this information into the equation:

y=4x+b

Now, take one of the points and insert into the slope-intercept formula:

(-5,0)\\(-5(x),0(y))\\\\0=4(-5)+b

Solve for b, the y-intercept. Simplify multiplication:

0=-20+b

Add 20 to both sides and simplify:

0+20=-20+20+b\\20=b\\b=20

The y-intercept, b, is 20. Insert this value into the equation:

y=4x+20

Done.

7 0
4 years ago
Look at the picture and plzz help me and also pick from the boxed sentences
poizon [28]
<h2>Hello!</h2>

The answers are:

3. Addition property of equality

4. 6x-7+7=12+7 - Simplification

7. x=\frac{19}{6}

<h2>Why?</h2>

To solve the problem, we need to start with the result of the second step:

6x-7=12

So,

For the step 3:

Then, for the 3rd step, we have to apply the addition property of equality.

The addition property of equality states that if we add a term to one side of the equality, we need to add it to the other side of the equality, in order to not alterate the equality.

Then, applying the property, we have:

6x-7=12

Adding 7 to both sides, we have:

6x-7+7=12+7

For the step 4:

Now, for the 4th step, we have to simplify the expression:

6x-7+7=12+7

Then, simplifying, we have:

6x=19

For the step 7:

Simplificating, we divide each side of the equality by 6:

\frac{6x}{6}=\frac{19}{6} \\\\x=\frac{19}{6}

Have a nice day!

3 0
4 years ago
What is 3,493 divided by 37? Please include it’s remainder, too;
qwelly [4]

94 remainder 4054054

7 0
4 years ago
Read 2 more answers
ConnwctED.mcgraw-gill.com
mars1129 [50]
Do you need help answering a question or something?
8 0
3 years ago
What is the perimeter of 2m 10cm by 45 cm
qwelly [4]
I believe it is 510 cm because a meter equals 100 cm so 210 cm times 2 equals 410 cm then multiply 45 times 2 and get 90 cm then add 410 plus 90 and get 510 cm.
6 0
3 years ago
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