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AnnZ [28]
2 years ago
15

6. Leveled Practice Resting heart rate is a measure of how

Mathematics
1 answer:
Luden [163]2 years ago
5 0

Answer:

       280-4        276

m is ---------- =  ---------

       140-2          138

y= 2x

The heart's resting heart rate is 2 beats each minute

Step-by-step explanation:

280-4=276

140-2=138

276/138=2 <--- division

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1. y = x2 + 8x + 15<br> Find the zeros of the function by rewriting the function in intercept form
lubasha [3.4K]

The zeros of given function y=x^{2}+8 x+15 is – 5 and – 3

<u>Solution:</u>

\text { Given, equation is } y=x^{2}+8 x+15

We have to find the zeros of the function by rewriting the function in intercept form.

By using intercept form, we can put value of y as  to obtain zeros of function

We know that, intercept form of above equation is x^{2}+8 x+15=0

\text { Splitting } 8 x \text { as }(5+3) x \text { and } 15 \text { as } 5 \times 3

\begin{array}{l}{\rightarrow x^{2}+(5+3) x+5 \times 3=0} \\\\ {\rightarrow x^{2}+5 x+3 x+5 \times 3=0}\end{array}

Taking “x” as common from first two terms and “3” as common from last two terms

x (x + 5) + 3(x + 5) = 0

(x + 5)(x + 3) = 0

Equating to 0 we get,

x + 5 = 0 or x + 3 = 0

x = - 5 or – 3

Hence, the zeroes of the given function are – 5 and – 3

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3 years ago
3 square root 125/5-8
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The answer is <span>-1.2917960675</span>
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3 years ago
What value of "a" makes the system 3x-y=17 and ax+y=-7 have no solution?
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Answer:

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Step-by-step explanation:

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