A class of 25 students took a spelling test. Two students scored 100 on each test, nine students scored 95 on each test, ten students scored 90 on each test, three students scored 80 on each test and one student scored 70. What is the average score of the spelling test rounded to one decimal place? Enter your answer in the box.

Answer:

True

Step-by-step explanation:

Using the converse theorem of Pythagoras

If the longest side in a triangle is equal to the sum of the squares of the other 2 sides then the triangle is right.

longest side = 68

68² = 4624

and 32² + 60² = 1024 + 3600 = 4624

Hence triangle is right.

Answer:

True

Step-by-step explanation:

The other user is correct!

Step-by-step explanation:

[tex]f(x)=x^2,\ g(x)=x+6,\ h(x)=7\\\\h(x)=7\ \text{It's the constant function. Therefore}\ h\{g[f(x)]\}=7[/tex]

Answer:

12 degrees Fahrenheit below zero is simply -12 degrees. And since -12  is lower by the number by 29 degrees, we just add 29 to -12

Step-by-step explanation:

-12

+29

=17

The high temperature of the day is +17 degrees.

Pls mark brainliest :)

The temperature of the day is 17 degrees Fahrenheit.

Given data:

To find the high temperature of the day, add the temperature difference to the current temperature.

The temperature difference is 29 degrees Fahrenheit below the high temperature of the day.

Given that the current temperature is 12 degrees Fahrenheit below zero, determine the high temperature by adding the temperature difference:

High temperature = Current temperature + Temperature difference

On simplifying the equation:

High temperature = -12 degrees Fahrenheit + 29 degrees Fahrenheit

High temperature = 17 degrees Fahrenheit

Hence, the high temperature for the day is 17 degrees Fahrenheit.

The correct answer is B. 17 degrees Fahrenheit.

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Answer:

He spent [tex]\frac{23}{40}[/tex] of his allowance

Step-by-step explanation:

The fraction Ebenezer spent on allowance is on Saturday is [tex]\frac{3}{8}[/tex]

The fraction he spent on Sunday is [tex]\frac{1}{5}[/tex]

The fraction of his allowance he spent is the fraction he spent on Saturday plus the fraction he spent on Sunday.

[tex]=\frac{3}{8}+\frac{1}{5}[/tex]

The LCD is

[tex]=\frac{3\times 5+8\times1}{40}[/tex]

[tex]=\frac{15+8}{40}[/tex]

[tex]=\frac{23}{40}[/tex]

Answer:

$0.96

Step-by-step explanation:

To find the unit price is to find the price of 1 meter.

9m = $8.64

1 m = 8.64 ÷ 9 = $0.96

Answer:

193.74 is the swear

Step-by-step explanation:

What you can do is divide 20 by 10 to get 0.20. Then you multiply by 968.70

So 0.20 x 968.70 = 193.74

So 193.74 is the commission Ezra earned.

To check the answer you just add it like this 100% +20% or 0.20

Then multiply that like this 120% is 1.20, so 1.20 x 968.70 = 1,162.44

to check you just inverse it 1,162.44 - 968.70 = 193.74.

So it is accurate.

Answer:

c because f(x) is x+6 and the bracket means multiply

Answer:

A = 0.25*j + 1

Step-by-step explanation:

The question presented here is an application of linear models. The $1 amount is fixed and does not depend on any factor such as the cups of orange juice sold.

Furthermore, we are informed that we earn $0.25 for every cup of orange juice sold. This means that we shall earn 0.25 j by selling  j cups of orange juice.

The variable total amount, A will thus depend on the fixed amount of $1 and the variable income 0.25 j.

The equation in two variables that will represent the total amount A (in dollars) you have after selling j cups of orange juice will thus be;

A = 0.25*j + 1

the amount after selling y cups is can be given by the equation [tex]x = 1 + 0.25y[/tex]

Let x be the amount we have and y be the number of cups of orange juice sold.

We start with $1, so this is your initial amount. For each cup of orange juice sold, you earn $0.25.

Therefore, total earnings by selling y cups will be:

[tex]0.25y[/tex]

The equation can be written as follows:

[tex]x = 1 + 0.25y[/tex]

Thus the amount after selling y cups is can be given by the equation [tex]x = 1 + 0.25y[/tex]

Answer:

1. the number five plus x

2. the number five minus x

3.  five times x

4.  five divided by x

5.  three fourths of x plus 2

6.  two minus three fourths of x

7.  three times x plus ten

8.  ten times x plus three

Step-by-step explanation:

(3x2.5)+(9x12)

7.5+108

115.5

Answer:

3(2.5)+  9(12)=

Multiply

7.5 + 108= 115.5

Step-by-step explanation:

Plzzz brainlist !!!

The answer is 392

Volume (for pyramid) = Length(width) Hight/3

Answer:

392 cm³

Step-by-step explanation:

The volume of a pyramid is one third the height times the area of the base.

V = ⅓ h A

The base is a square, so the area is the width times length.

V = ⅓ h wl

Given that h = 6 cm, w = 14 cm, and l = 14 cm:

V = ⅓ (6 cm)(14 cm)(14 cm)

V = 392 cm³

25pi yards squared is the area

Answer:

Yes, the sides are in the ratio 2:5.

Can you mark me as the brainliest??

Answer:  The correct option is

(B) Yes, the sides are in the ratio 2:5.

Step-by-step explanation:  We are given to check whether the triangles can be similar based on the side lengths alone.

From the figure, we note that

the sides lengths of the triangle RST are

RS = 3.0 cm, ST = 6.0 cm  and RT = 6.4 cm.

and the corresponding side lengths of triangle XUW are

XU = 7.5 cm, UW = 15.0 cm  and  XW = 16.0 cm.

So, the ratio of the corresponding sides of the two triangles are as follows :

[tex]\dfrac{RS}{XU}=\dfrac{3}{7.5}=\dfrac{30}{75}=\dfrac{2}{5},\\\\\\\dfrac{ST}{UW}=\dfrac{6}{15}=\dfrac{2}{5},\\\\\\\dfrac{RT}{XW}=\dfrac{6.4}{16}=\dfrac{64}{160}=\dfrac{2}{5}.[/tex]

Therefore, we get

[tex]\dfrac{RS}{XU}=\dfrac{ST}{UW}=\dfrac{RT}{XW}=\dfrac{2}{5}=2:5.[/tex]

Hence, the corresponding sides are proportional and they are in the ratio 2 : 5.

Thus, (B) is the correct option.

Answer:

31 feet  4 inches  or 376 inches

Step-by-step explanation:

First you have to find the surface area of each side.

Front = (10 x 8) 80

Back = (10 x 8) 80

Left side = (6 x 8) 48

Right side = (6 x 8) 48

Top = (10 x 6) 60

Bottom = (10 x 6) 60

Then, you add them all up and you get your answer!

Hope I helped! ; )

Answer:

Step-by-step explanation:

hope you got the answer

Tim is 20 cm higher on height

Tim's height is 1m 20cm (120cm) and Erica's height is 1m (100cm). The simplified ratio of their heights is 6:5.

To find the simplified ratio of Tim's height to Erica's height, we need to convert both heights to the same unit of measurement (centimeters) before calculating the ratio.

Tim's height = 1m 20cm = 100cm + 20cm = 120cm

Erica's height = 1m = 100cm

Now, we can calculate the ratio of Tim's height to Erica's height:

Ratio = Tim's height / Erica's height

Ratio = 120cm / 100cm

Ratio = 6/5

The simplified ratio of Tim's height to Erica's height is 6:5.

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The answer would be...

C

I hope this helps! :3

Explanation ~ when you count it out that would make it close to the number 5.

Answer:

C for sure but still mark Kana81 branilist just doing this for my challenge!!!

Step-by-step explanation:

Answer:

[tex]011\degree[/tex]

Step-by-step explanation:

The direction of a vector is given by;

[tex]\theta=\tan^{-1}(\frac{y}{x})[/tex]

The given vector is <5,1>.

The x-component of this vector is 5 and the y-component is 1.

We substitute the values into the formula to obtain;

[tex]\theta=\tan^{-1}(\frac{1}{5})[/tex]

We use our scientific calculator to obtain;

[tex]\theta=11.3099[/tex]

Therefore the direction of the given angle is [tex]011\degree[/tex] to the nearest degree.

Answer:

7/12

Step-by-step explanation:

Julie and Stefanie shared 1 whole candy bar. Therefore, the candybar can be represented as 1.

To find out what fraction of the candy bar Stefanie and Julie ate, simply add how much each girl ate.

Stefanie ate 1/4 and Julie ate 1/3. 1/4 + 1/3 = 7/12.

Therefore, Stefanie and Julie ate 7/12 of the candy bar. I hope this helps!

7/12

one fourth equals three twelfths and one third equals four twelfths and u add them

Answer:

375

Step-by-step explanation:

Multiply 3x125=375cu

A rectangular prism with three different whole number dimensions has the same volume will be 1 cm by 5 cm by 25 cm.

It deals with the size of geometry, region, and density of the different forms both 2D and 3D.

The volume of a cube is 125 cubic centimeters.

A rectangular prism with three different whole number dimensions has the same volume.

Then the dimension of the rectangular prism will be

Volume of rectangular prism = Volume of cube

Volume of rectangular prism = 125

Volume of rectangular prism = 1 x 5 x 25

More about the geometry link is given below.

https://brainly.com/question/7558603

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Step-by-step explanation:

[tex]\text{Use}\ \dfrac{a^n}{a^m}=a^{n-m}\ \text{and}\ (a^n)^m=a^{nm}\\\\\left(\dfrac{a^x}{a^y}\right)^{x-y}=\left(a^{x-y}\right)^{x-y}=a^{(x-y)(x-y)}=a^{(x-y)^2}\\\\\left(\dfrac{a^y}{a^z}\right)^{y-z}=\left(a^{y-z}\right)^{y-z}=a^{(y-z)(y-z)}=a^{(y-z)^2}\\\\\left(\dfrac{a^z}{a^x}\right)^{z-x}=\left(a^{z-x}\right)^{z-x}=a^{(z-x)(z-x)}=a^{(z-x)^2}\\\\\text{Use}\ a^n\cdot a^m=a^{n+m}\\\\a^{(x-y)^2}\cdot a^{(y-z)^2}\cdot a^{(z-x)^2}=a^{(x-y)^2+(y-z)^2+(z-x)^2}[/tex]

[tex]\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\(x-y)^2=x^2-2xy+y^2\\(y-z)^2=y^2-2yz+z^2\\(z-x)^2=z^2-2zx+x^2\\\\=a^{x^2-2xy+y^2+y^2-2yz+z^2+z^2-2zx+x^2}\\\\\text{combine like terms}\\\\=a^{(x^2+x^2)+(y^2+y^2)+(z^2+z^2)-2xy-2yz-2zx}\\\\=a^{2x^2+2y^2+2z^2-2xy-2yz-2zx}\qquad\text{distributive}\\\\=a^{2(x^2+y^2+z^2)-2(xy-yz-zx)}\\\\\text{From the equastion we know:}\ x^2+y^2+z^2=xy+yx+zx.\\\text{Therefore}\\\\=a^{2(x^2+y^2+z^2)-2(x^2+y^2+z^2)}=a^0=1[/tex]

Answer: i will help ;)

friend me hurry

Hello there!

You need to have good answers that are reliable and correct. It depends on the person asking the question, some people give Brainliest and and some people don't. As long as you give good detailed explanations, you are bound to get Brainliest  on your answers! :)

Answer:

I think its D

Step-by-step explanation:

Also Do you mean D)The data gathered on Monday most likely represent the school population,but the data gathered on Tuesday most likely do not?

The data gathered on Monday by randomly sampling 85 students will most likely represent the school population, whereas the data from Tuesday, consisting of Sakiya's soccer teammates, is a convenience sample and likely does not represent the school population.

The student's question involves understanding how well a sample represents a larger population in statistical surveying. In Sakiya's case, the first sample where she surveyed 85 randomly chosen students in the cafeteria on Monday is more likely to represent the school population because it was randomly selected from a broader, more diverse group. This is in contrast to the sample gathered on Tuesday, which includes only 15 of her soccer teammates and is a convenience sample, since it's composed of individuals who are readily accessible to the researcher but may not represent the target population accurately.

Therefore, it's reasonable to conclude that the Monday sample is better at representing the entire school population due to the randomness of the selection process. In contrast, the Tuesday sample is biased and less representative because it consists of a specific subgroup within the school, i.e., soccer team members, who may share similar interests that do not necessarily reflect the interests of the entire school population.

Answer:

x = 15

y = 6

z = 10

Step-by-step explanation:

Okay, let's set up the equation(s).

x = 3 + 2y

x = 3/2z

x + y + z = 31

With some algebra that God knows how came through my mind, I got this:

x = 15

y = 6

z = 10

Answer:

The discount is 179.70

Answer:

$419.30

Step-by-step explanation:

599*.30=179.7

599-179.7

=$419.30

Answer:

A, both can be sides of a triangle

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

7^2=49 40^2=1600 1600+49=1649 is not equal to 41^2 so its not a right triangle

12/4=3 16/4=4 20/4=5 3,4,5 is one of the combinations of a right triangle

Answer:

Step-by-step explanation:

Look at the picture.

Answer:

[tex]\frac{1}{16}[/tex]

Step-by-step explanation:

The experimental probability is based on what already happened.

So we see that both of them found a total of 11 + 3 + 36 + 40 + 134 = 224 coins.

The coins that are worth MORE THAN 10 cents are 11 quarters and 3 fifty-cent pieces (we exclude dimes because we want MORE THAN 10 cents, NOT 10 cents exactly).

So 11 + 3 = 14 coins are worth MORE THAN 10.

So the probability of finding one worth more than 10 cents next is 14/224 = 1/16

Answer:

B, f(x) = 2|x - 2| + 6

Step-by-step explanation:

the functions shown have vertical stretches, horizontal shifts, and vertical shifts as a transformation

we do not need to focus on the stretch, and moreso the shifts

the horizontal shift takes place on the x-axis and it is written with the parent function (in this case the parent function is |x|). when the shift is negative (ex: x -2), this means that the x-coordinate would be positive. if the shift is positive (ex: x + 2) the x-coordinate would be negative

the vertical shift takes place on the y-axis and unlike the horizontal shift, is written on the outside of the parent function, like the +6 and -6 in each of the functions we are given. when a shift is positive (ex: +6), the y-coordinate is positive and when a shift is negative (ex: -6) the y coordinate is negative

using this information, we can see that 2|x - 2| + 6 fits this criteria, as we have a positive vertex

therefore the answer is B, f(x) = 2|x - 2| + 6

The function that has a vertex at (2, 6) is:

f(x) = 2|x-2| + 6

To find the function with a vertex at (2, 6), we need to examine the general form of the absolute value function and how it affects the position of the vertex.

The general form of the absolute value function is f(x) = a |x - h| + k, where (h, k) represents the vertex of the absolute value function.

Given the vertex (2, 6), we have h = 2 and k = 6.

Now, let's analyze each given function:

1. f(x) = 2|x-2| - 6

  This function has a vertex at (2, -6), not (2, 6). So, it's not the correct function.

2. f(x) = 2|x-2| + 6

  This function has a vertex at (2, 6), which matches our given vertex. So, it could be the correct function.

3. f(x) = 2|x + 2| + 6

  This function has a vertex at (-2, 6), not (2, 6). So, it's not the correct function.

4. f(x) = 2|x + 2| - 6

  This function has a vertex at (-2, -6), not (2, 6). So, it's not the correct function.

Therefore, the function that has a vertex at (2, 6) is:

f(x) = 2|x-2| + 6

Answer:

the answer is D. It does not have enough information

Answer:

b

Step-by-step explanation:

Given

3y + 15x = - 15

Isolate 3y by subtracting 15x from both sides

3y = - 15x - 15 ( divide all terms by 3 )

y = - 5x - 5 → b

Answer:

B

Step-by-step explanation: