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3 years ago

Please Help,

Mathematics

2 answers:

Ksju [112]3 years ago

3 0

f(x) = x−3 / x−5

x intercept = 3
y intercept = 0.6

Maurinko [17]3 years ago

3 0

Answer:

Step-by-step explanation:

Required is a graph of a rational function with degree 1 of x both in numerator and denominator also both binomials.

Consider the binomials x-1 and x+9

Let us consider f(x) = $\frac{x-1}{x+9}$

This function graph is shown in the enclosure

2) Equate denominator to 0

We get x=-9

This is the vertical asymptote

For horizontal asymptote we see that both numerator and denominator have same degree

Hence horizontal asymptote is y = ratio of coefficients of leading terms

i.e.y=1 is horizontal asymptote

For x intercept put y =0

we get x =1 is the x intercept

For y intercept put x =0

y = 1/-11 = -1/11

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Leya [2.2K]

Answer:

3.39 + 0.59x

Step-by-step explanation:

Cost of a dish of ice cream = $3.39

Cost of toppings = $0.59 each

x = number of toppings

which expression can be used to determine the total charge in dollars, for a dish of ice cream with x toppings

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The expression is 3.39 + 0.59x

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3 years ago

Expand 4x(7x-11) For maths Help please

harina [27]

Answer:

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Step-by-step explanation:

Use the distributive property.

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Hope this helps!

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3 years ago

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Natasha2012 [34]

Answer:

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3 years ago

Read 2 more answers

A manufacturer uses production method to produce steel rods. A random sample of 17 steel rods resulted in lengths with a standar

Arisa [49]

Answer:

$\chi^2 =\frac{17-1}{12.15} 22.09 =15.87$

Traditional method

We can find a critical value in the chi square distribution with df =16 who accumulates $\alpha/2 =0.05$ of the area on each tail and we got:

$\chi^2_{crit}= 7.962$

$\chi^2_{crit}=26.296$

Since the calculated value is between the two critical values we don't have enough evidence to conclude that the true deviation is NOT significantly different from 3.5 cm

Confidence level method

We can find the p value like this

$p_v =2*P(\chi^2 >15.87)=0.92$

Since the p value is higher then the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviation is NOT significantly different from 3.5 cm

Step-by-step explanation:

Data provided

$n=17$ represent the sample selected

$\alpha=0.1$ represent the significance

$s^2 =4.7^2 =22.09$ represent the sample variance

$\sigma^2_0 =3.5^2 =12.15$ represent the value to check

Null and alternative hypothesis

We want to verify if the new production method has lengths with a standard deviation different from 3.5 cm, so the system of hypothesis would be:

Null Hypothesis: $\sigma^2 = 12.15$

Alternative hypothesis: $\sigma^2 \neq 12.15$

The statistic for this case is given by:

$\chi^2 =\frac{n-1}{\sigma^2_0} s^2$

The degrees of freedom are:

$df =n-1= 17-1=16$

$\chi^2 =\frac{17-1}{12.15} 22.09 =15.87$

Traditional method

We can find a critical value in the chi square distribution with df =16 who accumulates $\alpha/2 =0.05$ of the area on each tail and we got:

$\chi^2_{crit}= 7.962$

$\chi^2_{crit}=26.296$

Since the calculated value is between the two critical values we don't have enough evidence to conclude that the true deviation is significantly different from 3.5 cm

Confidence level method

We can find the p value like this

$p_v =2*P(\chi^2 >15.87)=0.92$

Since the p value is higher then the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviation is significantly different from 3.5 cm

7 0

3 years ago

The final cost of a bookstore purchase with a $5 coupon in a state that charges 8% sales tax is given by this expression. The va

AnnyKZ [126]

Answer:

B.the total charge before applying sales tax

Step-by-step explanation:

8 0

3 years ago