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3 years ago

HELP PLEASEE THIS IS MY LAST QUESTION ILL MARK BRAINLIEST

Mathematics

1 answer:

RoseWind [281]3 years ago

8 0

Answer:

F. y = 9.5x + 22.5

Step-by-step explanation:

let the number of shirts be x

For every shirt he pays $9.50 and $22.5 is the additional price

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List x1, x2, x3, x4 where xi is the midpoint endpoint of the five equal intervals used to estimate the area under the curve of f

Amanda [17]

Answer:

$\bf x_1 = 2\\x_2 = 4\\x_3=6\\x_4=8$

Step-by-step explanation:

The given interval : x = 0 to x = 10

Length of interval = 10 - 0

= 10

$\text{Now, each }x_i \text{ is midpoint and endpoint of the five equal intervals}$

⇒ Number of equal intervals = 5

$\textbf{Length of each interval = }\frac{10}{5}$

$\textbf{Therefore, }\bf x_1 = 0 + 2 = 2\\x_2 = 2 +2 =4\\x_3=4+2=6\\x_4=6+2=8$

3 0

3 years ago

Solve for X .... -3(x-5)>18

Ilya [14]

Answer:

x<-1

Step-by-step explanation:

We multiply by -1 of both sides and change the sense of inequality:

(-1)*(-3(x-5))>(-1)*18

3(x-5)<-18

3 passes by dividing

x-5<-18/3

x-5<-6

5 goes by adding:

x<-6+5

x<-1

6 0

3 years ago

This can have more than one option answer this fast in two minutes

jolli1 [7]

Answer:

Just QT and UX

Step-by-step explanation:

QT and TX intersect and are not parallel.

QU and ST are not parallel or intersecting.

QT and WX are not parallel or intersecting.

QT and UX are parallel.

6 0

3 years ago

Suppose a large shipment of compact discs contained 19% defectives. If a sample of size 343 is selected, what is the probability

Yuri [45]

Answer:

The value is $P( | \^p - p | < 0.04) = 0.9408$

Step-by-step explanation:

From the question we are told that

The population proportion is $p = 0.19$

The sample size is n = 343

Generally given that the ample size is large enough , i.e n > 30 then the mean of this sampling distribution is mathematically represent

$\mu_{x} = p = 0.19$

Generally the standard deviation is mathematically represented as

$\sigma =\sqrt{\frac{p(1- p)}{n} }$

=> $\sigma =\sqrt{\frac{0.19 (1- 0.19 )}{343 } }$

=> $\sigma = 0.0212$

Generally the the probability that the sample proportion will differ from the population proportion by less than 4% is mathematically represented as

$P( | \^p - p | < 0.04) = P( \frac{|\^ p - p |}{ \sigma_p } < \frac{0.04}{0.0212 } )$

$\frac{|\^ p - p |}{\sigma } = |Z| (The \ standardized \ value\ of \ |\^ p - p | )$

$P( | \^p - p | < 0.04) = P( |Z| < 1.887 )$

=> $P( | \^p - p | < 0.04) = P( Z < 1.887 )- P( Z < -1.887 )$

From the z table the area under the normal curve to the left corresponding to 1.887 and - 1.887 is

$P( Z < 1.887 )= 0.97042$

and

$P( Z < -1.887 )= 0.02958$

$P( | \^p - p | < 0.04) = 0.97042 - 0.02958$

=> $P( | \^p - p | < 0.04) = 0.9408$

3 0

2 years ago

Winston earns $140.00 by selling 56 hotdogs at the school BBQ. If the cost of each hot dog stays the same, how many more hot dog

svlad2 [7]

Find the price for 1 hotdog:

$140 / 56 = $2.50 per hotdog.

He wants to earn 175 and already earned 140

175 - 140 = 35

He wants to earn $35 more.

Divide the mount he needs to earn by the price of 1 hotdog:

35 / 2.50 = 14

He needs to sell 14 more hotdogs.

3 0

2 years ago