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mixer [17]
2 years ago
10

Solve the equation for y 1/2y - 21/4 = -35/4

Mathematics
1 answer:
mina [271]2 years ago
5 0

Answer:

1/2y - 21/4 = -35/4

1/2y  = 21/4  -35/4

1/2y  =   - 7/4

y =   - \frac{7}{2}

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What is the simplified form of the following expression?
geniusboy [140]

Answer:

242

Step-by-step explanation:

Simplify the following:

11 ((9^2 - 5^2)/2^2 + 8)

Hint: | Evaluate 2^2.

2^2 = 4:

11 ((9^2 - 5^2)/4 + 8)

Hint: | Evaluate 5^2.

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11 ((9^2 - 25)/4 + 8)

Hint: | Evaluate 9^2.

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Hint: | Subtract 25 from 81.

| 7 | 11

| 8 | 1

- | 2 | 5

| 5 | 6:

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Hint: | Reduce 56/4 to lowest terms. Start by finding the GCD of 56 and 4.

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11 (14 + 8)

Hint: | Evaluate 14 + 8 using long addition.

| 1 |  

| 1 | 4

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| 2 | 2:

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| 2 | 2

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3 0
3 years ago
A) Find a polynomial, which, when added to the polynomial 5x2–3x–9, is equivalent to: 18
VMariaS [17]

Answer:

a) -5x^{2}+3x+27

b) -5x^{2}+3x+9

Step-by-step explanation:

a) Let the required polynomial be p(x).

We have the relation, 5x^{2}-3x-9 + p(x) = 18

i.e. p(x) = 18 -5x^{2}+3x+9

i.e. p(x) = -5x^{2}+3x+27


b) Let the required polynomial be q(x).

We have the relation, 5x^{2}-3x-9 + q(x) = 0

i.e. q(x) = 0 -5x^{2}+3x+9

i.e. q(x) = -5x^{2}+3x+9

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