Pls help I really need a good grade on this

Answer:

The number of judges that should be selected  is 25

Step-by-step explanation:

Given that:

The C.I = 90%

Level of significance = 1 - C.I

= 1 - 0.90

= 0.10

Critical level for [tex]Z_{\alpha/2}[/tex] at 0.10 = 1.645

The margin of error E = 2.00

Let's assume that the sample standard deviation was $6.11

Then;

The number of judges that should be selected can be computed by using the formula:

[tex]E = Z_{\alpha/2} \times \dfrac{s}{\sqrt{n}}[/tex]

[tex]2 = 1.645 \times \dfrac{6.11}{\sqrt{n}}[/tex]

[tex]2\sqrt{n} = 10.05095[/tex]

[tex]\sqrt{n} = \dfrac{10.05095}{2}[/tex]

[tex]\sqrt{n} =5.026[/tex]

[tex]n=(5.026)^2[/tex]

n = 25.26

n ≅ 25

Answer: the exponent is 2

Step-by-step explanation: this is equal to (1/7)^2

Answer:

170.76

Step-by-step explanation:

Answer:

X = 12. Hope this helps you:)

3x / 8 = 8 ( simplifying ! )

3x = 64 ( you times both sides by 8 )

x = 21.33 ( just divide both by 3 )

i hope this is correct :D

Answer:

y = 75x + 100

Step-by-step explanation:

75 is the constant 100 is the y intercept

please give me brainliest

Answer:

0

Step-by-step explanation:

subtract 20 from 40 it's Zero

Answer:

(6,0) or just 6

Answer:

1.06x

Step-by-step explanation:

The original price of a carrot cake is represented by x.

Emily increased the price of carrot cakes at her bakery by 6%.

We need to find an expression that represents the price of a carrot cake after the increase.

Price = x+6% of x

[tex]=x+\dfrac{6}{100}x\\\\=x+0.06x\\\\=1.06x[/tex]

Hence, the required equation is "1.06x".

Answer:

1.06x

Step-by-step explanation:

Answer:

91.4

Step-by-step explanation:

We know that the formula to a right triangle is a^2 + b^2 = c^2

so assume 73 and 55 are both Not the hypotenuse, then

73*73 + 55*55 = c^2

5329 + 3025 = 8354

c = 91.4

Answer:

Height of bus = 4 m

Step-by-step explanation:

I have attached an image showing the cross section of this tunnel.

Since the diameter is given as 10m.

Thus, radius = 10/2 = 5 m

Since radius is 5 m, it means that the distance from the center of the circle to the tunnel edge = 5 m

If the bus is 2 m from one side, it means that the centre of the road to the right hand side of the bus will be;

5 - 2 = 3 m

Looking at the image and our values here, it is clear that, the distance from the centre of the road to the point where the bus just touches the roof tunnel = 5

Using Pythagoras theorem, we can find the height of the bus, h;

h² + 3² = 5²

h² + 9 = 25

h² = 25 - 9

h² = 16

h = √16

h = 4 m

Step-by-step explanation:

1. its either 0 or 1/4 cause cause each pound is $3 and he had less then that.

2. 3 cause its either u count by 3 till u get to 11 or below it

The answers to both subparts using mathematical operations are shown:

(A) Strawberries at $1.00:

Strawberries at $1.00: 0.33 pounds

(B)  Strawberries for $11.00:

Strawberries at $11.00: 3.67 pounds

Therefore, the answer to both subparts using mathematical operations are shown:

Know more about mathematical operations here:

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3 pounds because strawberries cost $3.00 per pound.What is cost? A cost is the worth of money that has been expended to produce something or provide a service and is therefore no longer available for use in production, research, retail, and accounting. In the case of an acquisition cost, the money spent on the acquisition is considered the cost.What connection exists between price and quality?Regardless matter whether the relationship is positive [higher costs are linked with higher quality] or negative [higher quality is associated with lower costs], the majority of research have concluded that the relationship between cost and quality is minimal to moderate.Given: Cost of Strawberries per pound = $3. 00a. How many pounds of strawberries can you buy for $1.00?Answer: 0 because the cost of per pound strawberries is $3.00So, he can not but any pound at $1.00but he can but 1/4 pound as the cost given b. How many pounds of strawberries can you buy for $11.00?Therefore, 3 pounds because strawberries cost $3.00 per pound.To learn more about : cost calculationRef: https://brainly.com/question/17215284#SPJ2

Answer:

280 km

Step-by-step explanation:

Answer:

D.6

Step-by-step explanation:

6w + 5 =41

6w = 41-5

6w=36

6w/6 =36/6

W=6

Check

Let's put the answer (6) on the w place and see if we get 41

6x6 +5=41

36 +5=41

41=41

Answer:

866

Step-by-step explanation:

659

Answer: 2/3=$23

Step-by-step explanation:

Answer:

25

Step-by-step explanation:

100 / 4 = 25

if helpful, pls mark 5 star, thanks, and brainliest!

factored:

(x - 2)(x + 5)

Answer:

(x - 2)(x + 5)

Answer:

8:42

Step-by-step explanation:

Answer:

8:42 little hand is the hour long hand is minutes

Answer:

1.875

Step-by-step explanation:

1/4 times 6= 3/2

3/2 + 3/8 =1.875

hope this helps!

You must observe the distances from the center of the dilation at point A to the other points B, C and D. The dilation image will be 1/3 of each of these distances. AB = 6, so A'B' = 2. AD = 9, so A'D' = 3.

Can I get brainllest

Answer:6.25

Step-by-step explanation:1.25x5=6.25

Answer:

$6.25

Step-by-step explanation:

1.25 × 5 = 6.25

hope this helps...

Answer:

[tex]f(0)=7[/tex]

Step-by-step explanation:

[tex]f(0)[/tex] is the value of [tex]f(x)[/tex] when [tex]x=0[/tex]. Therefore, to find [tex]f(0)[/tex], we need to substitute [tex]x=0[/tex] into [tex]f(x)[/tex], or [tex]3x+7[/tex]. Thus, [tex]f(0)=3*0+7=0+7=7[/tex]. Hope this helps!

Answer:

Tracey paid 34.5% of the original price.

Explanation

Tracey paid $190 for an item that was originally priced at $550.

For finding the percentage, first we need to divide the paid amount by the original price and then multiply the result by 100%

So, the percentage 190/500 x 100 % = 34.5% (Rounded to the nearest tenth)

Answer:

33.33 or 33 1/3

Step-by-step explanation:

Answer:

Step-by-step explanation:

1:    1, 2, 3, 4, 5, 6, 7, 8, 8, 9, 10....

2:   2, 4, 6, 8, 10....

3:  3, 6, 9, 12, 15, 18, 21, 24, 27....

4:   4, 8, 12, 16, 20, 24, 28, 30....

5:   5, 10, 15, 20, 25, 30, 35 40, 45...

Answer:

negative they are 4 negative factors

The product of the expression would be Negative; there are four negative factors.

Multiplication is the mathematical operation that is used to determine the product of two or more numbers. If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.

We have a multiplication expression with eight rational factors.

It is given that Half of the factors are positive and half are negative.

For an integer, the factor is the decomposition of that integer in terms of smaller integers; when multiplied with each other gives back that considered number. Those composing integers are known as factors that considered integers.

The product of the expression would be Negative; there are four negative factors.

Learn more about multiplications;

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Answer:

The sample mean would most likely be 50 centimeters.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

In this question:

The mean of the population is 50 centimers.

So, by the Central Limit Theorem, the sample mean would most likely be also 50 centimeters.