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vichka [17]
2 years ago
13

the value of n is both 5times as much as the value of m and 36more than the value of m. What are the values of n and m?​

Mathematics
2 answers:
LuckyWell [14K]2 years ago
8 0

Answer:

m  = 9, n = 36

Step-by-step explanation:

Here, according to the question:

(a)  value of n is  5 times as much as the value of m

⇒  <u>n =  5 x ( value of m) </u>= 5 m

or, n = 5 m

(b)  value of n is 36 more than the value of m

⇒ <u> n =  36 +  ( value of m) </u>= 36 + m

or, n = 36 +  m

Now, compering both equations, we get

5 m   =  36 +  m

or, 5  m - m = 36

⇒ 4 m = 36, or m = 36 / 4 = 9

or,m = 9

Now, for m = 9, n =  5 x m = 5 x ( 9)  = 45

Hence, m  = 9, n = 36

Mnenie [13.5K]2 years ago
8 0

Answer: m = 9, n = 45

Step-by-step explanation:

For us to solve the question, we have to find the numbers that represent m and n.

From the question, we were told that the value of n is both 5times as much as the value of m. This means that:

n = 5 × m

n = 5m ............ equation i

We were also informed that n is 36 more than the value of m. This means that:

n = m + 36 ......... equation ii

We can write out both equations

n = 5m ............ equation i

n = m + 36....... equation ii

We substitute n= 5m into equation ii

n = m + 36

5m = m + 36

Collect like terms

5m - m = 36

4m = 36

Divide both side by 4

4m/4 = 36/4

m = 9

Since we know the value of m,we substitute it into any of the equations

n = m + 36

n = 9 + 36

n = 45

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Evaluate the function for the given values to determine if the value is a root. p(−2) = p(2) = The value is a root of p(x).
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<em>Note: Since you missed to mention the the expression of the function </em>p(x)<em> . After a little research, I was able to find the complete question. So, I am assuming the expression as </em>p(x)=x^4-9x^2-4x+12<em> and will solve the question based on this assumption expression of  </em>p(x)<em>, which anyways would solve your query.</em>

Answer:

As

p\left(-2\right)=0

Therefore, x=-2 is a root of the polynomial <em> </em>p(x)=x^4-9x^2-4x+12

As

p\left(2\right)=-16

Therefore, x=2 is not a root of the polynomial <em> </em>p(x)=x^4-9x^2-4x+12

Step-by-step explanation:

As we know that for any polynomial let say<em> </em>p(x)<em>, </em>c is the root of the polynomial if p(c)=0.

In order to find which of the given values will be a root of the polynomial, p(x)=x^4-9x^2-4x+12<em>, </em>we must have to evaluate <em> </em>p(x)<em> </em>for each of these values to determine if the output of the function gets zero.

So,

Solving for p\left(-2\right)

<em> </em>p(x)=x^4-9x^2-4x+12

p\left(-2\right)=\left(-2\right)^4-9\left(-2\right)^2-4\left(-2\right)+12

\mathrm{Simplify\:}\left(-2\right)^4-9\left(-2\right)^2-4\left(-2\right)+12:\quad 0

\left(-2\right)^4-9\left(-2\right)^2-4\left(-2\right)+12

\mathrm{Apply\:rule}\:-\left(-a\right)=a

=\left(-2\right)^4-9\left(-2\right)^2+4\cdot \:2+12

\mathrm{Apply\:exponent\:rule}:\quad \left(-a\right)^n=a^n,\:\mathrm{if\:}n\mathrm{\:is\:even}

=2^4-2^2\cdot \:9+8+12

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=16+20-36

=0

Thus,

p\left(-2\right)=0

Therefore, x=-2 is a root of the polynomial <em> </em>p(x)=x^4-9x^2-4x+12<em>.</em>

Now, solving for p\left(2\right)

<em> </em>p(x)=x^4-9x^2-4x+12

p\left(2\right)=\left(2\right)^4-9\left(2\right)^2-4\left(2\right)+12

\mathrm{Remove\:parentheses}:\quad \left(a\right)=a

p\left(2\right)=2^4-9\cdot \:2^2-4\cdot \:2+12

p\left(2\right)=2^4-2^2\cdot \:9-8+12

p\left(2\right)=2^4+4-2^2\cdot \:9

p\left(2\right)=16+4-36

p\left(2\right)=-16

Thus,

p\left(2\right)=-16

Therefore, x=2 is not a root of the polynomial <em> </em>p(x)=x^4-9x^2-4x+12<em>.</em>

Keywords: polynomial, root

Learn more about polynomial and root from brainly.com/question/8777476

#learnwithBrainly

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5. = 0 . . . . when a factor is zero, the product is zero
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