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BlackZzzverrR [31]
3 years ago
7

What are the solutions to the equation?

Mathematics
1 answer:
nalin [4]3 years ago
7 0

Solutions are 3 and - 5.

Step-by-step explanation:

Step 1:

Given equation is 3x² + 6x = 45. Factorize the equation to get the solutions.

⇒ 3x² + 6x - 45 = 0

⇒ x² + 2x - 15 = 0

⇒ x² + 5x - 3x - 15 = 0 (Product and Sum Method where product of coefficients = - 15 and sum = 2)

⇒ x (x + 5) - 3(x + 5) = 0

⇒ (x - 3)(x + 5) = 0

⇒ x = 3, - 5

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V = d / t => t = d / V

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During one day in a hardware store, 37 people came in and made a purchase, and 13 people looked around but didn’t purchase anyth
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Ling's elementary school principal wants to hire some new teachers. 6 teachers applied for one 1st grade teaching job, and 3 tea
kolbaska11 [484]

Answer:

Ling's principal can hire new teachers in 54 different ways.

Step-by-step explanation:

Since Ling's elementary school principal wants to hire some new teachers, and 6 teachers applied for one 1st grade teaching job, and 3 teachers applied for one 2nd grade teaching job, and there is also a job opening for a 3rd grade teacher, and 3 teachers applied for the job, to determine how many different ways can Ling's principal hire new teachers the following calculation has to be done:

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8 0
3 years ago
Rose has $426.00 in her checking account. 1⁄3 of her money will go toward bills. How
Alex Ar [27]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
If X || Y and Y || Z, then _____<br><br> A) A || B<br> B) X || Z<br> C) X⊥A<br> D) A⊥Z
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Answer:

B) X || Z

Step-by-step explanation:

Hope it helps you in your learning process.

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3 years ago
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