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Juliette [100K]
3 years ago
13

Find the least common multiple of the pair of polynomials.2y^2 - 50 & y - 5​

Mathematics
1 answer:
ZanzabumX [31]3 years ago
6 0

Answer:

The least common multiple is 2y^2 - 50.

Step-by-step explanation:

Least common multiple means the lowest thing you can multiply them both to. For example, the LCM of 2 and 4 is 2, because 2*2 = 4 and 4*1 = 4.

First, factor 2y^2 - 50.

2 (y^2 - 25)

2 (y - 5)(y + 5)

Looks like if we wanted to get 2y^2 - 50 starting with y - 5, we'd have to multiply it by 2(y + 5).

2y^2 - 50 * 1 = 2y^2 - 50

y - 5 * 2(y + 5) = 2y^2 - 50

<u>So their least common multiple is 2y^2 - 50.</u>

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The maximum heart​ rate, in beats per​ minute, that you should achieve during exercise is 220 minus your​ age, 220 minus a. Your
polet [3.4K]

Answer:

a) Lower limit range = 119.7 ≈ 120

b) Upper limit range = 136.8 ≈ 137

Step-by-step explanation:

Given:

a) Lower limit range = \frac{\textup{7}}{\textup{10}}\times(220-\textup{Age})

Therefore,

For the given person of age 43 years old

substituting the value of age in the above equation, we get

Lower limit range = \frac{\textup{7}}{\textup{10}}\times(220-\textup{49})

or

Lower limit range = 119.7 ≈ 120 beats per minute

b) The upper limit range = \frac{\textup{4}}{\textup{5}}\times(220-\textup{Age})

Therefore,

For the given person of age 43 years old

substituting the value of age in the above equation, we get

Upper limit range = \frac{\textup{4}}{\textup{5}}\times(220-\textup{49})

or

Upper limit range = \frac{\textup{4}}{\textup{5}}\times(220-\textup{49})

or

Upper limit range = 136.8 ≈ 137 beats per minute

7 0
3 years ago
The expression 3x^2-33x-180 can be factored into the form a(x+b)(x+c) where a, b, and c are constants, to reveal the zeros of th
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Answer:

(3x-2)=49

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Step-by-step explanation:

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