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4 days ago

If xy + 5ey = 5e, find the value of y'' at the point where x = 0.

Mathematics

1 answer:

Zina [3.9K]4 days ago

6 0

Response:

1 (only applicable if e is not zero)

Detailed explanation:

xy + 5ey = 5e

0y + 5ey = 5e

y = 5e/5e

y = 1

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Parcel of land is sold for 163000, it appreciates at 14% compounded per year. Seller keeps it for 7 years. How much would the se

tester [3916]

Answer: $434, 306.4

Step-by-step explanation:

From the information provided,

P= $163,000

R= 14% ; 14/100= 0.14

T=7 years

Using the formula,

A= Pr e^t

A= 163000*e^(0.14*7)

= 163000*e^(0.98)

= $434,306.4

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13 days ago

The total cost of 5 doughnuts and 6 cookies at a bakery is $11.95.The cost of each cookie is $0.95.Select the equation and its s

Zina [3914]

The formula representing this scenario is $5x+6(0.95)=11.95$

The answer to this formula is $x=1.25$

Initially, you need to formulate the equation.

$5x+6(0.95)=11.95$

Next, simplify the expressions.

$5x+5.7=11.95$

Afterwards, subtract 5.7 from both sides.

$5x=6.25$

Lastly, divide both sides by 5

$x=1.25$

6 0

12 days ago

Jerry is a judge he hears 5 cases every 2 3/8 per hours Jerry hears case at a constant rate How many cases does he hear per hour

tester [3916]

Approximately 2, I believe... I calculated it to be around 2.10.

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12 days ago

Read 2 more answers

In three hours, Company ABC can make X ball bearings. Company DEF can make X ball bearings in 4 hours. Company GHI can make X ba

AnnZ [3877]

Answer:

X ball bearings can be produced in 1 hour and 20 minutes

Step-by-step explanation:

Proportions

Proportions serve as an essential method for solving various common challenges. We understand that:

Company ABC manufactures X ball bearings in 3 hours.

Company DEF produces X ball bearings in 4 hours.

Company GHI generates X ball bearings in 6 hours.

In a single hour, each company is capable of producing:

ABC: X/3 ball bearings

DEF: X/4 ball bearings

GHI: X/6 ball bearings

By collaborating, they can produce

$\displaystyle \frac{X}{3}+\frac{X}{4}+\frac{X}{6}$

ball bearings. Operating together

$\displaystyle \frac{4X+3X+2X}{12}=\frac{9X}{12}=\frac{3X}{4}$

If their output is 3/4 of a ball bearing in one hour, then it will take

$\displaystyle \frac{4}{3}$ hours to create one complete ball bearing. This translates to 1 hour and 20 minutes.

X ball bearings can be produced in 1 hour and 20 minutes

8 0

17 days ago

A new weight-watching company, Weight Reducers International, advertises that those who join will lose an average of 10 pounds a

Inessa [3907]

Answer:

The value calculated is Z = 2.53, which exceeds 1.96 at a significance level of 0.05

This leads to the rejection of the null hypothesis H₀

Thus, we accept the alternative hypothesis

This implies that individuals participating in Weight Reducers will lose more than 10 pounds

Step-by-step explanation:

Step(i):-

The size of the random sample 'n' = 50

The new weight-loss program, Weight Reducers International, claims that members will shed an average of 10 pounds within the initial two weeks, with a standard deviation of 2.8 pounds.

Population mean 'μ' = 10 pounds

Population standard deviation 'σ' = 2.8 pounds

Sample mean 'x⁻' = 9

Significance level ∝ = 0.05

Step(ii):-

Null hypothesis: H₀: μ < 10

Alternative hypothesis: H₁: μ > 10

Test statistic calculation

$z= \frac{x^{-} - mean}{\frac{S.D}{\sqrt{n} } }$

$z= \frac{9 - 10}{\frac{2.8}{\sqrt{50} } } = \frac{-1}{0.395} = 2.53$

The determined Z value is 2.53

In this case, the critical value Z is 1.96 at the 0.05 significance level

Step(iii):-

Calculated Z value of 2.53 is greater than 1.96 at a significance level of 0.05

Consequently, we reject the null hypothesis H₀

We accept the alternative hypothesis

Conclusion:-

We determine that individuals who sign up for Weight Reducers will experience a weight loss exceeding 10 pounds

6 0

3 days ago