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3 years ago

Which expression shows a sum of three terms?

Mathematics

1 answer:

rewona [7]3 years ago

7 0

B 3 + x + 3

The other options in order are:
multiplying x to the power of 3
multiplying 3 by x
and multiplying 3 to the sum of x and 3.

B is the only option because it is the only option that does not involve multiplication at all.

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What is the solution to the system of equations below? Y=-1/4x+2 and 3y=-3/4x-6

fgiga [73]

Answer:

There are infinite solutions to the system of equations given

Solution:

The given equations given are,

$y=-\frac{x}{4}+2$ ------ (i)

$3 y=-\frac{3 x}{4}-6$ ---- (ii)

Now putting the value of (i) in (ii) we get,

$3 \times\left(-\frac{x}{4}+2\right)=-\frac{3 x}{4}-6$

$\Rightarrow-\frac{3 x}{4}+6=-\frac{3 x}{4}-6$

$\Rightarrow\frac{3 x}{4}-\frac{3 x}{4}=-12$

$\Rightarrow0 \times x=-12$

$\Rightarrowx=(\frac{-12}{0})=\infty$

So, there are infinite solutions to the system.

4 0

3 years ago

What equation can I use to solve for x? What equation can I use to solve for y?

lbvjy [14]

Answer:

125+9x-8=180

6x+13+6y+29=180

Step-by-step explanation:

4 0

3 years ago

What is the x value of the triangle 3x-5, 2x+20, 4x-30

docker41 [41]

Answer:

x = 21.7°

Step-by-step explanation:

We know that the sum of the three angles in triangle add up to a total of 180°.

So adding the given expressions of angles and putting them equal to 180 to find the value of x:

$(3x-5) + (2x+20) +(4x-30)= 180$

$4x+3x+2x+20-30-5=180$

$9x=180+30-20+5$

$9x=195$

$x=\frac{195}{9}$

$x=21.7$

Therefore, the value of x in a triangle with angles 3x-5, 2x+20, 4x-30 is equal to 21.7°.

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3 years ago

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n200080 [17]

Answer:

Step-by-step explanation:

use the Pythagorean theorem :D

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3 years ago

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On day 1 after the new moon 2% is visible on day 2 6% is visible based on this info when will 100% be visible?

loris [4]

Answer:

approximately 33 days

Step-by-step explanation:

6/2=3

100/3=33.33333 repeating

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3 years ago