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Reika [66]
2 years ago
7

Use the quadratic formula to solve the following quadratic equation.

Mathematics
1 answer:
irina1246 [14]2 years ago
4 0

Answer:

3.89 and -0.39.

Step-by-step explanation:

To find the answer we need to find what is what based of ax squared plus/minus bx + c = 0. A is 2, b is -7, and C is - 3. Now using the formula -b plus minus square root of b squared minus 4 time a time c all divided by 2a.

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Factor the Polynomial completely x^2 + 18
Shtirlitz [24]

x² + 18 = (x - 3√2i)(x + 3√2i)

5 0
3 years ago
Solving special systems<br> {y=1/2x+4<br> {-1/2x+y=-5
ryzh [129]

Answer:

no solution

Step-by-step explanation:

Given the 2 equations

y = \frac{1}{2} x + 4 → (1)

- \frac{1}{2} x + y = - 5 → (2)

Substitute y = \frac{1}{2} x + 4 into (2)

- \frac{1}{2} x + \frac{1}{2} x + 4 = - 5 , that is

4 = - 5 ← not possible

This indicates the system has no solution

7 0
3 years ago
Theta Company has the following variances at the end of February:
allochka39001 [22]

Answer:

Debit Cost of Goods Sold $710

Credit Material Price Variance $40

Credit Material Usage Variance $225

Credit Labor Rate Variance $110

Credit Labor Efficiency Variance $335

Step-by-step explanation:

Preparation of the journal entry to be passed by Theta Company at the end of the month of February to close the variances

Debit Cost of Goods Sold $710

($40+$225+$110+$335)

Credit Material Price Variance $40

Credit Material Usage Variance $225

Credit Labor Rate Variance $110

Credit Labor Efficiency Variance $335

(To close the variances)

8 0
2 years ago
One number is 3 more than another number. if you add 12 to 4 times the first number, the result is 5 times the second number. Fi
aleksklad [387]

Answer:

first is -3, second number is 0

Step-by-step explanation:

you have two equations x+3=y and 4*x+12=5*y

Use the first one and write y in terms of x in the second equation:

4*x+12=5*(x+3)

4*x+12=5*x+15

12=5*x-4*x+15

12=x+15

x=-3

3 0
3 years ago
julia and her friends are making kites out of paper. For each kite, they need a piece of paper that is \dfrac{65}{100} \text{ me
Alona [7]

Answer:

  260 cm

Step-by-step explanation:

Each 1/00 of a meter is 1 cm, so 65/100 meters is 65 cm. If that is the length of paper required for 1 kite, then 4 times that length will be required for 4 kites.

__

The paper required for 4 kites is ...

  (65 cm) × 4 = 260 cm

8 0
2 years ago
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