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kirill115 [55]
3 years ago
12

3k2-19=15k-1 solve by factoring

Mathematics
1 answer:
kow [346]3 years ago
6 0

For this case we must factor the following expression:

3k ^ 2-19 = 15k-1

We manipulate algebraically, taking into account that different signs are subtracted and the sign of the major is placed:

3k ^ 2-15k-19 + 1 = 0\\3k ^ 2-15k-18 = 0

We divide by 3 on both sides of the equation:

k ^ 2-5k-6 = 0

To factor, we look for two numbers that, when multiplied, result in -6 and when added, result in -5. These numbers are -6 and +1.

-6 + 1 = -5\\-6 * (+ 1) = - 6

Thus, we factor the equation:

(k-6) (k + 1) = 0

The roots of the equation are:

k_ {1} = 6\\k_ {2} = - 1

ANswer:

k_ {1} = 6\\k_ {2} = - 1

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Step-by-step explanation:

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Each year, Kipp raises money by participating in the Walk for Breast Cancer. Last year, Mr. Madrid walked at a pace of 12 miles
Ilia_Sergeevich [38]
A.

The rate is 12:2

B.

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30 = x

So he will walk 30 miles in 5 hours.

C.

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3 years ago
What is the length of the hypotenuse of the triangle below
Hatshy [7]
One way to solve this is to use Pythagorean theorem: the square of one leg of triangle plus square of other leg of the triangle equals c the hypotenuse (longest side of triangle). You might see this as the formula a^2 + b^2 = c^2, where a and b are the legs and c is the hypotenuse.
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The other way to do this is with trigonometric angles.
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4 0
3 years ago
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Janet is buying a $28 necklace. The store reduces the price by 20% and then applies a $2 off coupon. How much will Janet pay for
Leokris [45]
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3 years ago
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Pleaseee answer quick
FinnZ [79.3K]

Answer: m

Step-by-step explanation:

if you are talking about a specific point, then it would be m because OA, AB and

<-->

AB

all have other points to them.

AB is when you are trying to explain the distance between AB

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