what is the mean for 98,78,84,75,91

Answers

Answer 1
the mean is going to be 85.2

Related Questions

The dotplot shows the heights of 25 students in Mrs. Navard’s statistics class.
A) Find the Percentile for Lynette, the student who is 65 in. tall.
B) Ashers height is at the 88th percentile of the distribution. Interpret this value in context. How tall is Asher?

Answers

Answer:

A)Percentile for Lynette, the student who is 65 in. tall is 36th

B) Asher is 22 inches tall.

Step-by-step explanation:

Percentile : It is a measure used in statistics indicating the value below which a given percentage of observations in a group of observations falls

A) Find the Percentile for Lynette, the student who is 65 in. tall.

No. of students below 65 inch =9

So, Percentage of data below 65 inch =[tex]\frac{9}{25} \times 100 = 36 \%[/tex]

So, Percentile for Lynette, the student who is 65 in. tall is 36th

B)Ashers height is at the 88th percentile of the distribution. Interpret this value in context. How tall is Asher

[tex]88=\frac{x}{25} \times 100 \\\frac{2200}{100}=x[/tex]

22=x

So, No. of students below or st 88th percentile = 22

So, Asher is 22 inches tall.

Jim earns a regular hourly rate of five dollars and a premium hourly rate of six dollars he worked 45 hours last week what is his gross pay

Answers

Answer:

The premium is the overtime.

Total time = 45 hours.

40 hours of regular time at $5, and 5 hours of overtime.

Total = 40*5 + 5 * 6 = 200 + 30 = $230


HELP ASAP PLSSS

Identify the relationship
BETWEEN the two angles below. Select ALL that
apply.

Linear Pair

Supplementary Angles

Congruent Angles

Complementary Angles

Vertical Angles

Adjacent Angles

Answers

Answer:

complementry and ajaecent

Step-by-step explanation:

complementry because they add up to 90 and ajecent cause they are next to each other

A regular Pyramid is formed from 3 right triangles as shown below use the information given in the figure to find the length of RT.

Answers

Answer:

The length of BD is 65 units.

Step-by-step explanation:

ΔADC is a right angle triangle, we will use the Pythagorus Theorem to find the length CD.

Formula of the Pythagorus Theorem : 

⇒ a² + b² = c²

⇒ AD² + CD² = AC²

The value of AD is 54 and the value of AC is 90:

54² + CD² = 90²

Solve for CD:

54² + CD² = 90²

CD² = 90² - 54²

CD² = 5184

CD = √5184

CD = 72

ΔADC is also a right angle triangle, we will use the Pythagorus Theorem to find the length BD.

Formula of the Pythagorus Theorem : 

⇒ a² + b² = c²

⇒ BD² + CD² = BC²

The value of CD is 72 and the value of BC is 97:

BD² + 72² = 97²

Solve for BD:

BD² = 97² - 72²

BD² = 4225

BD = √4225

BD = 65

The average class size in the school is 25 students. Suppose this class is
representative of all the students in the school. How many students in this class are
boys?

Answers

Answer:

10 of the students in the class are boys

1.Which measuring tool will you use to get 3/4 cup

a.1/2

b.1/4 + 1/4

c.1/2 + 1/4

d. 1/2 + 1/8​

Answers

The answer would be C.
We need common denominators so we could multiply 1/2 by 2 to get for as a denominator. When we multiply we get 2/4. Now that we have common denominators, we can add both 2/4 and 1/4 which would give us 3/4. Hope this helps and please mark brainliest!!!

x2-x-6=0, then x is

Answers

Answer:

A is the answers for the question

Step-by-step explanation:

please mark me as brainlest

[tex]\underline{\underline{\large\bf{Solution:-}}}\\[/tex]

[tex]\longrightarrow[/tex]Given is a quadratic equation which can be solved by splitting the middle term.

[tex]\leadsto[/tex]For this we have to look at factors of the constant term . Since here constant term term is- 6 so splitted middle term should have product equal to -6

[tex]\begin{gathered}\\\implies\quad \sf x^2-x-6=0 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf x^2-3x+2x-6=0 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf x(x-3)+2(x-3)=0 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf (x-3)(x+2) =0 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf (x-3) =0 \quad or \quad (x+2) =0\\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf x=3 \quad or \quad x= -2\\\\\end{gathered} [/tex]

[tex]\quad\therefore\: \sf x \:is \: \:3 \:or -2 [/tex]

Help me I don’t get it

Answers

g+3f+f+g+g

g+g+g+3f+f

g(1+1+1)+f(3+1)

g(3)+f(4)

3g+4f

These points are linear.
Find the slope.
x 1 3 5 7 9
y 0 5 10 15 20

Answers

Answer:

5/2

Step-by-step explanation:

to find the slope use the equation y2 - y1/ x2 - x1

sooo

0 - 5/1 - 3

-5 / -2

5/2

Suppose heights of seasonal pine saplings have an unknown distribution with mean 291 and standard deviation 14 millimeters. A sample of size n=55 is randomly taken from the population and the mean is taken. Using the Central Limit Theorem for Means, what is the standard deviation for the sample mean distribution?

Answers

Answer:

1.89

Step-by-step explanation:

The center al limit theorem for means states that the standard deviation of the normal distribution of sample means is equal to the original distribution’s standard deviation divided by the square root of the sample size. the original standard deviation is 14 and the sample size is 55.

Which step shows the result of applying the subtraction property of equality?

One-fourth (12 x + 8) + 4 = 3

Step
Solution
1
3 x + 2 + 4 = 3
2
3 x + 6 = 3
3
3 x = negative 3
4
x = negative 1

Answers

Answer:

1

Step-by-step explanation:

Answer:

3X + 6 = 3

Step-by-step explanation:

Devaughn is 14 years older than Sydney. The sum of their ages is 110. What is Sydney's age?

Answers

d = s-14
d+s = 76

• substitution;
(s-14)+s = 76
2s-14= 76
2s = 90
s = 45 years old for Sydney
d = s-14 = 31 years old for Devaughn
hope this helps

Answer:

The answer would be 48

Sydney is 48

Devaughn is 62

48 + 62 = 110

Okays so you start by doing the equation 110 - 14 = 96

then dividing 96 by 2 (96 ÷ 2) which is 48

add 14 to 48 and you will get 62. We can automatically assume that sydney is 48 because when you add 48 to 62, you will get 110. I hope that this helps! ^‿^

Which relation is a function

Answers

Answer:

A function is a relation in which each input has only one output.

Step-by-step explanation:

In the relation Y is a function of X because for each input x(1,2,3 or 0) there is only one output y.

The relation that is a function is the relation (d)

Checking the relations that are functions

From the question, we have the following parameters that can be used in our computation:

The relations (1) to (4) represent the given parameter (see attachment)

Next, we test the options

Relation (a)

This relation is not a function

This is because it fails the vertical line test i.e. some output values all point to the same input value,

Relation (b)

This relation is not a function

This is because it fails the vertical line test i.e. some output values all point to the same input value,

Relation (c)

This relation is not a function

This is because it fails the vertical line test i.e. some output values all point to the same input value,

Relation (d)

This relation is a function

This is because the inputs all point to different output values

Hence, the option (d) is a relation

Read more about functions at

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Consider the following equation. 4x + 2 = 8x - 5 Which equation and explanation could represent a step in finding the value of x​

Answers

Answer: 0 or 1.75

Step-by-step explanation:

Answer:

x=1.75

Step-by-step explanation:

First add 5 to each side then you would have 4x+7=8x then subtract 4x from each side and you'll get 7=4x the divide each side by four and you'll get 1.75=x

I have a few questions. Help is very very appreciated!


1. Solve for x. –6x ≥ 72
2. Solve for x. x/3 + 14 <10
3. Solve for x. 5 + kx = 17
4. Solve for x. 9x – 2c = k

5. Rewrite the formula for the given variable. A= 1/2bh

Rewrite the formula for b.

Rewrite the formula for h.

Answers

Answer:

Step-by-step explanation:

1. -432X

2.46.6X

3.KX = 17-5

=KX=12

4. X=9+2C+K

= X=11CK

A light airplane is flying at 85 km/h on a heading of 130°. The wind is blowing at 25 km/h from a bearing of 260°. Find the ground velocity of the airplane.

Answers

Answer:

71.54km/hr

Step-by-step explanation:

7) Find the base of a triangle whose height is 12cm, and area is 96cm? Your answer​

Answers

Answer:

16 cm

Step-by-step explanation:

Area of triangle= ½ ×base ×height

Substitute given information into the formula:

96= ½ ×base ×12

Simplify:

96= 6 ×base

Divide both sides by 6:

base= 96 ÷6

base= 16 cm

Answer:

16 cm

[tex] \\ [/tex]

Step-by-step explanation:

It is given that, the height of a triangle is 12cm, and its area is 96cm² and we have to find the base of triangle.

[tex] \\ [/tex]

To find the base of the triangle, we have to know this formula :

[tex] \\ {\longrightarrow \pmb{\frak {\qquad \frac{1}{2} \times Base \times Height = Area_{(Triangle)} \:}}} \\ \\[/tex]

Now, substituting the values in the formula :

[tex]{\longrightarrow \pmb{\sf {\qquad \frac{1}{2} \times Base \times 12 = 96 \:}}} \\ \\[/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad \frac{1}{ \cancel2} \times Base \times \cancel{12 } = 96 \:}}} \\ \\[/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad {1} \times Base \times 6 = 96 \:}}} \\ \\[/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad Base \times 6 = 96 \:}}} \\ \\[/tex]

[tex]{\longrightarrow \pmb{\sf {\qquad Base = \frac{96}{6} \:}}} \\ \\[/tex]

[tex]{\longrightarrow \pmb{\frak {\qquad Base = 16\:}}} \\ \\[/tex]

Therefore,

The base of the triangle is 16 cm

The banana bread card states it serves 10 people. How much flour is required to make enough bread for 30 people?​

Answers

Answer:  4 & 1/2 cups of flour

========================================================

The card says we need 1 & 1/2 cups of flour

Let's convert this to decimal form

1 & 1/2 = 1 + 1/2

1 & 1/2 = 1 + 0.5

1 & 1/2 = 1.5

The mixed number 1 & 1/2 is equivalent to the decimal number 1.5

Now multiply this by 3. This is because the recipe originally serves 10 people, but we want to serve 3 times as many people (3*10 = 30 total).

So,  3*1.5 = 4.5

Now convert back to a mixed number

4.5 = 4 + 0.5

4.5 = 4 + 1/2

4.5 = 4 & 1/2

We'll need 4 & 1/2 cups of flour.

----------------------

Here's another way to approach the problem

Multiply 3 by 1 & 1/2 to get

3*(1 & 1/2) = 3*(1 + 1/2)

3*(1 & 1/2) = 3*1 + 3*1/2

3*(1 & 1/2) = 3 + 3/2

3*(1 & 1/2) = 3 + (2+1)/2

3*(1 & 1/2) = 3 + 2/2 + 1/2

3*(1 & 1/2) = 3+1 + 1/2

3*(1 & 1/2) = 4 + 1/2

3*(1 & 1/2) = 4 & 1/2

You need 4 and 1/2 cups of flour to make enough bread for 30 people

You can do this by turning the 1 and 1/2 cups into a decimal: 1.5

Then you multiply 1.5 by 3 which gives you 4.5
4.5 also means 4 and 1/2

6x - 10y = 20 in slope intercept form

Answers

Slope intercept: y=mx+b
A: Y= 3/5x + 2

Move 6x to the other side of the equation by subtracting both sides by 6x.
You’ll then have -10y=-6x+20.
Simplify by dividing -10 on both sides. -6x divided by -10 is 3/5x, and 20 divided by 10 is 2.

The general equation of a straight line in slope-intercept form is given as:

y = mx + c

The slope-intercept form of 6x - 10y = 20 is y = (3/5)x - 2.

What is equation of a line?

The equation of a line is a form of representing the set of points, which form a line in a coordinate system. 

The general equation of a straight line is given as:

y = mx + c,

where m = slope of the line and c = y-intercept.

We have,

6x - 10y = 20 _____(1)

The slope intercept form is  y= mx + c

So,

Subtract -6x on both sides.

6x - 10y - 6x = 20 - 6x

-10y = 20 - 6x

Divide both sides by -10.

y = 20/-10 + 6x/10

y = -2 + 3x/5

y = (3/5)x - 2

Thus,

The slope-intercept form of 6x - 10y = 20 is y = (3/5)x - 2.

Learn more about equation of a line here:

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Simplify 6 - 2^3 + (-9 + 5) • 2.
-10
-12
6
-8

Answers

Answer:

The answer is -10.

Step-by-step explanation:

It was found that the mean length of 100 diodes (LED) produced by a company
was 20.05 mm with a standard deviation of 0.02mm. Find the probability that a diode
selected at random would have a length less than 20.01mm

Answers

Using the normal distribution, it is found that there is a 0.0228 = 2.28% probability that a diode selected at random would have a length less than 20.01mm.

Normal Probability Distribution

In a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.

In this problem, we have that:

The mean is of [tex]\mu = 20.05[/tex].The standard deviation is of [tex]\sigma = 0.02[/tex].

The probability that a diode selected at random would have a length less than 20.01mm is the p-value of Z when X = 20.01, hence:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{20.01 - 20.05}{0.02}[/tex]

[tex]Z = -2[/tex]

[tex]Z = -2[/tex] has a p-value of 0.0228.

0.0228 = 2.28% probability that a diode selected at random would have a length less than 20.01mm.

More can be learned about the normal distribution at https://brainly.com/question/24663213

write the absolute value equations in the form x−b =c (where b is a number and c can be either number or an expression) that have the following solution sets:b Two solutions: x=1/2, x=−1/3.

I will award Brainliest

Answers

The answer is Ix-15I=x-15

Answer:

Ix-1/12I=5/12

Step-by-step explanation:

Do ur rsm

what is the slope of the line that passes through (3,-5) and (-7,15)

Answers

Answer:

Slope = -2

Step-by-step explanation:

Answer: The slope is -2

Step-by-step explanation:  Find the difference in y-values divided by the difference in x-values

15 -(-5) = 20

-7 - 3 = -10

20/-10 = -2

A stick is 9 m long. A rope is 2 times as long as the stick. If the rope is divided into 3 pieces, how many meters long is each piece of rope?

Answers

The length of rope(consist of 3 pieces)=9*2=18m
One piece=18/3=6m
Pls mark me as the Brainliest as I really need it!

Answer:

the answer is 9

Step-by-step explanation:

Write the equation of the line that passes through (6, 2) with a slope of 4.

Answers

Answer:

y=mx-22

Step-by-step explanation:

Take standard line equation y=mx+c and substitute the given values of m=4, x=6, y=2 to find out the value of c

Dominic goes jogging every morning. If m represents the number of miles he jogs each day, which expression represents the total number of miles he jogs in a week?
7 m
7 + m
7 minus m
StartFraction 7 over m EndFraction

Answers

Answer:

The expression which represents the total number of miles he jogs in a week is 7 m ⇒ A

Step-by-step explanation:

Let us solve the question

∵ Dominic goes jogging every morning

∵ m represents the number of miles he jogs each day

→ That means he jogs m miles every day

∵ There are 7 days in a week

→ That means he jogs m miles every day for 7 days

∵ m + m + m + m + m + m + m = 7 × m

∴ He jogs in 1 week 7 × m miles

∴ He jogs 7 m miles in a week

The expression which represents the total number of miles he jogs in a week is 7 m

Answer:

A. 7m

Step-by-step explanation:

Since the answer above was really long

The greatest common factor of 2M to the fifth power and 32M to the fourth power

Answers

So 2 is the GCF for the coefficient. The variables are m4 and m5 . 4 is the greatest shared power, and so the GCF for that is m4

brainliest please if correct

what are the 3 linear equations and how they different ​

Answers

point-slope form, standard form, and slope-intercept form.

Write 2.81 repeating as a mixed number in simplest form, if possible explain.

Answers

Answer:

2.81 as a mixed number is  2 81/100

Step-by-step explanation:

Personal Math Trainer
Module 11 -
1
2
3
4
5
Consider the inequality and number line representation.
represented correctly on the number line.
0
2
4
6
8
10
X26
No
A
B

Answers

Answer:

No, I believe the circle should be filled in if it's greater than or equal to

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