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gregori [183]
2 years ago
5

dentify the vertical asymptotes of f(x) = quantity x plus 6 over quantity x squared minus 9x plus 18.

Mathematics
1 answer:
ser-zykov [4K]2 years ago
8 0
So the function we're dealing with is

f(x) = \frac{x+6}{x^{2}-9x+18 }

Factorising we get, x^{2} -9x+18=0
(x-3)(x-6)=0

Therefore, the vertical asymptotes are at x = 3 and x = 6 
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1. Remember what we know about vertical angles and solve for x. (SHOW WORK)
EastWind [94]

Answer:

Ans.1.)      X = 7.

Ans.2.a.)  AC =JL.

Ans.2.b.)  BC = KL.

Step-by-step explanation:

For Question 1.

As we know vertically opposite angles are equal.

\therefore (x+16)\° = (4x-5)\°\\\therefore (5+16)\° = (4x-x)\°\\ \therefore (3x) = (21)\\\therefore x = 7\\

For Question 2.a)

In\ \triangle ABC and \triangle JKL \\AB \cong JK\ \textrm{Given}\\\angle CAB \cong \angle LJK\ \textrm{each measure angle of 90\°}\\AC \cong JL\ \textrm{this is the required information to prove the triangles are congruent by SAS postulate}\\\therefore \triangle ABC \cong \triangle JKL\ \textrm{ By SAS postulate}

For Question 2.b)

In\ \triangle ABC and \triangle JKL \\AB \cong JK\ \textrm{Given}\\\angle CAB \cong \angle LJK\ \textrm{each measure angle of 90\°}\\BC \cong KL\ \textrm{this is the required information to prove the triangles are congruent by HL Theorem}\\\therefore \triangle ABC \cong \triangle JKL\ \textrm{ By Hypotenuse length Theorem}

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2 years ago
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TEA [102]
The answer is D. SF is .4
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There is 40% decreased in price on a sale it is further decreased by 5%,find the total decreased percentage.
VladimirAG [237]
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3 0
2 years ago
A sample of 20 account balances of a credit company showed an average balance of $1,170 and a standard deviation of $125. You wa
Lady_Fox [76]

Answer:

The P-value for this test is P=0.2415.

Step-by-step explanation:

We have to perform an hypothesis testing on the mean of alla account balances.

The claim is that the mean of all account balances is significantly greater than $1,150.

Then, the null and alternative hypothesis are:

H_0: \mu=1150\\\\H_a: \mu>1150

The sample size is n=20, with a sample mean is 110 and standard deviation is 125.

We can calculate the t-statistic as:

t=\dfrac{\bar x-\mu}{s/\sqrt{n}}=\dfrac{1170-1150}{125/\sqrt{20}}=\dfrac{20}{27.95}=0.7156

The degrees of freedom fot this test are:

df=n-1=20-1=19

For this one-tailed test and 19 degrees of freedom, the P-value is:

P-value=P(t>0.7156)=0.2415

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Answer:

Step-by-step explanation:

you multiple each hight and base

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