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zhuklara [117]
3 years ago
5

What is the value of a?

Mathematics
1 answer:
inessss [21]3 years ago
5 0
6(a+2)+3=3(10-3a)\\
6a+12+3=30-9a\\
15a=15\\
a=1
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Help please!!!! it makes so sense
Tamiku [17]

Answer:

(- \frac{1}{5} , 0 )

Step-by-step explanation:

to find where the line crosses the x- axis, let y = 0 in the equation and solve for x

5x - 2(0) + 1 = 0

5x - 0 + 1 = 0

5x + 1 = 0 ( subtract 1 from both sides )

5x = - 1 ( divide both sides by 5 )

x = - \frac{1}{5}

the line crosses the x- axis at (- \frac{1}{5}, 0 ) or ( - 0.2, 0 )

4 0
2 years ago
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a post is driven into the ground. the first strike drives the post 30 inches into the ground. The next strikes drives the post 2
nevsk [136]
Your answer should be 156 inches
3 0
3 years ago
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HOW DO I SOLVE THIS??<br> What would the answer be??<br> THANKS!
Arisa [49]
Convert 300% into decimals. So move the decimal point 2 times to the left and you get 3.00 and multiply it by 5 and square it because area of square is s^2
7 0
3 years ago
Triangle ABC is shown below.
Andrew [12]

Answer:

C.) 14

Step-by-step explanation:

Look at the triangle: angles b and c have the same arch, so they are congruent.

In a triangle, if two angles are congruent, then the triangle is isosceles, having two equal sides.

The sides opposite the congruent angles are congruent:

∠B → opposite side → AC

∠C → opposite side → AB

The sides AB and AC are equal. Make an equation:

AB=AC\\\\2x=3x-7

Simplify the equation, solving for x. Add 7 to both sides:

2x+7=3x-7+7\\\\2x+7=3x

Subtract 2x from both sides:

2x-2x+7=3x-2x\\\\7=x

The value of x is 7. Insert the value of x into the given length of AC:

AC=3(7)-7

Simplify multiplication:

AC=21-7

Subtract:

AC=14

Therefore, the length of the line segment AC is 14.

:Done

8 0
3 years ago
Is the number 8 odd or even?
Veseljchak [2.6K]
Hello there!

The number 8 is an even number, since it can be divided evenly by the number of 2.


Hope this helps and have a great day! :)
6 0
3 years ago
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