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Nuetrik [128]
4 years ago
8

Solve. 4x + 8 = 2x + 7 + 2x - 20

Mathematics
1 answer:
polet [3.4K]4 years ago
4 0
First you would combine like terms on each side of the equation It would look like this... 4X+8= 4X-13
Then you would add 13 to both sides, the 13 on the right side of the equation would cancel out and the 8 would become 21. It would look like this... 4X+21=4x.
Now you would subtract 4X from both sides. The 4's Would cancel out which would leave you with 21=X

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Rewrite the form In exponential form:<br> Log100 = x
andrey2020 [161]

Answer:

10^x=100

Step-by-step explanation:

You know how subtraction is the <em>opposite of addition </em>and division is the <em>opposite of multiplication</em>? A logarithm is the <em>opposite of an exponent</em>. You know how you can rewrite the equation 3 + 2 = 5 as 5 - 3 = 2, or the equation 3 × 2 = 6 as 6 ÷ 3 = 2? This is really useful when one of those numbers on the left is unknown. 3 + _ = 8 can be rewritten as 8 - 3 = _, 4 × _ = 12 can be rewritten as 12 ÷ 4 = _. We get all our knowns on one side and our unknown by itself on the other, and the rest is computation.

We know that 3^2=9; as a logarithm, the <em>exponent</em> gets moved to its own side of the equation, and we write the equation like this: \log_3{9}=2, which you read as "the logarithm base 3 of 9 is 2." You could also read it as "the power you need to raise 3 to to get 9 is 2."

One historical quirk: because we use the decimal system, it's assumed that an expression like \log1000 uses <em>base 10</em>, and you'd interpret it as "What power do I raise 10 to to get 1000?"

The expression \log100=x means "the power you need to raise 10 to to get 100 is x," or, rearranging: "10 to the x is equal to 100," which in symbols is 10^x=100.

(If we wanted to, we could also solve this: 10^2=100, so \log100=2)

6 0
3 years ago
What can you add to get 2.35/0.29
torisob [31]

Answer:

8 and 3/29

Step-by-step explanation:

2.35 ÷ 0.29

2 and 35/100 ÷ 29/100

= 8 and 3/29

4 0
3 years ago
Read 2 more answers
Y= -5 - 6<br> m=<br>b=<br>what is the slope (m) amd the y intercept (b)​
Marysya12 [62]
Because y=-5-6. I think m=-5, b=6
6 0
3 years ago
Please help. Thank you!
Ann [662]
<h2 />

<em><u>WRITE</u></em><em><u> </u></em><em><u>FORMULA</u></em>

  • <u>B</u><u>×</u><u>H</u><u>=</u><u> </u><u>Area</u><u> </u><u>of</u><u> </u><u>Parallelogram</u>

<em><u>SUBSTITUTE</u></em>

  • <em><u>2.7cm</u></em><em><u> </u></em><em><u>×</u></em><em><u> </u></em><em><u> </u></em><em><u>3.1cm</u></em>

<em><u>SOLUTION</u></em>

  • <u>b</u><u>×</u><u>h</u>=Area of Parallelogram

  • 2.7cm×3.1cm

  • 8.37cm=Area of Parallelogram

<em>Therefore</em><em> </em><em>the</em><em> </em><em>Area</em><em> </em><em>of</em><em> </em><em>Parallelogram</em><em> </em><em>is</em><em> </em><em>8.37cm</em>

<em><u>im</u></em><em><u> </u></em><em><u>Filipino</u></em>

7 0
3 years ago
Read 2 more answers
use the formula A=LW to find the length of a rectangle when the width is 29 yards and the are is 1,044 square yards. Help please
sukhopar [10]

Answer:

L = 36 yd

Step-by-step explanation:

Given the area of a rectangle of 1044 yd², and a width of 29 yards:

Using the formula for finding the area of a rectangle, A = L × W, algebraically solve for the length (L):

A = L × W

where:

A = area of a rectangle = 1044 yd²

L = length of a rectangle

W = width of a rectangle = 29 yd

<h3><u /></h3><h3><u>Solution:</u></h3>

Divide both sides by W to isolate L:

\displaystyle\mathsf{\frac{A}{W}\:=\:\frac{L\:\times\:W}{W}}

\displaystyle\mathsf{L\:=\frac{A}{W}}

Substitute the values for the area and the width of a rectangle:

\displaystyle\mathsf{L\:=\frac{1044\:yd^2}{29\:yd}}

L = 36 yd

Therefore, the <u>length</u> of a rectangle is 36 yards.

3 0
3 years ago
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