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vladimir1956 [14]
2 years ago
9

A high school drama teacher organizes a musical production

Mathematics
1 answer:
NeX [460]2 years ago
3 0
Yes she does, shes also a great teacher for putting in the work for the production if the play.
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Solve 4(2a-1) = -10(a-5)
densk [106]
Firstly, you've got to expand the brackets, this becomes;
8a-4= -10a+ 50
You've then got to eliminate the -10a and you do this by adding 10a to both sides,
This then becomes 18a-4=50
You've then got to add 4, to eliminate this, which then becomes 18a=54
You've then got to divide both sides by 18, and this becomes 3.
Therefor, a=3
Hope this helps :)
4 0
3 years ago
Read 2 more answers
Prove the equation (2x+5)2 = 4x (x + 5) +25
shtirl [24]

Answer:  x = -5/2 and x = -3/2

Step-by-step explanation:

(2x + 5)2 = 4x (x + 5) +25

   4x + 10 = 4x² + 20x + 25

   [minus 4x on both sides.]

            10 = 4x² + 16x + 25

   [minus 10 on both sides.]

            0 = 4x² + 16x + 15

ac = 4(15) = 60,then find the factors that add up to 16, which is 6 and 10.

            0 = 4x² + 6x + 10x + 15

            0 = 2x(2x + 3) + 5(2x + 3)

            0 = (2x + 5)(2x + 3)

2x + 5 = 0                                 2x + 3 = 0

       2x = -5                                    2x = -3

         x = -5/2                                    x = -3/2

3 0
2 years ago
Read 2 more answers
In circle Y, what is mTU?
Marat540 [252]

we know that

The measure of the interior angle is the half-summit of the arcs that comprise it and its opposite

so

63=\frac{1}{2} *(arc \ SR+arc\ TU)\\ \\ 126=55+arc\ TU\\ \\ arc\ TU=126-55\\ arc\ TU=71\ degrees

therefore

the answer is

the measure of arc TU is equal to 71\ degrees

4 0
3 years ago
Read 2 more answers
One and four hundred thirteen thousandths standard form
Karolina [17]

One and four hundred thirteen thousandths in standard form would be <u>1.413 x 10^0.</u>

4 0
3 years ago
What is the value of the expression 8.5 - 10.2 + -7.4
kkurt [141]
First, subtract 10.2 from 8.5
8.5 - 10.2  = -1.7
Next, add -7.4 to -1.7
-7.4 (+) - 1.7 = -9.1
Your final answer is -9.1
8 0
3 years ago
Read 2 more answers
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