Mathematics High School

please help! due tmr

Answers

Answer 1

Answer:

One solution

Step-by-step explanation:

3x+x+2=8x-4x+2

Combine like terms.

4x+2=4x+2

Solve for x

4x+(-4x)+2=4x+(-4x)+2

2=2

This equation has one solution because 2 only equals 2 and will not equal any other number.

Related Questions

4/5 - 3/8

plz help me might give brainlist

Answers

Answer:

17/40

Step-by-step explanation:

4/5-3/8=32/40-15/40

=17/40

Answer:

Solution:

17/40 Alternative form 0.425

Step-by-step explanation:

Explanation how:

Write all numerators above the least common denominator 40

32-15/40

hope to help

What happens when an electrically charged pencil is placed close to water running from a faucet?

The pencil attracts the water.
The pencil becomes positively charged.
The water attracts the pencil.
The water repels the pencil.

Answers

The pencil attracts the water

help with this question

Answers

Answer:

option D is correct

x=O and x=-8

D is right. X is 0 and 8

For each pair of shapes, decide whether or not Shape A is congruent to Shape B. Englan your meaning
First pair

Answers

Answer:

blah blah blah blah blah

( I’ll give you brainliest!!!) Find the length of the third side. If necessary, write in simplest radical form.

Answers

Answer:

The Pythagorean Theorem, a2+b2=c2, a 2 + b 2 = c 2

I dont know the exact positions to put the lengths, but tell me if this helps!

Holly's soccer team is trying to raise $2,100 to travel to a tournament in Florida, so they decided to host a pancake breakfast. Each person must pay $30 for the breakfast. How many people need to attend their breakfast in order to raise $2,100?

Answers

Answer:

70 people

Step-by-step explanation:

30 dollars for each person, so you divide 2,100 by 30 to find how many people.

2,100/30=70

Answer:

Step-by-step explanation:

Target=$2,100

Money Earned from a single person=$30

Number of persons=$2,100 /$30 = 70

Thus, 70 people need to attend their breakfast in order to raise $2,100

f) create a residual plot for your data.

g) does your residual plot show that the linear model from the regression calculator is a good model?

h) using your equation estimate the gpa of a student who studies for 15 hours a week.
PLSSSSS NEED HELP

Answers

Answer: Consider the plot created from the residuals of a line of best fit for a set of data. Does the residual plot show that the line of best fit is appropriate for the data? Yes, the points have no pattern.

Step-by-step explanation:

Juan cut StartFraction 5 Over 12 EndFraction of a yard of cloth into 5 pieces of equal length. What was the length of each piece of cloth?A. StartFraction 1 Over 60 EndFraction of a yardB. StartFraction 1 Over 25 EndFraction of a yardC. StartFraction 1 Over 12 EndFraction of a yardD. One-fifth of a yard

Answers

Answer:

It is c

Step-by-step explanation:

A van travels 300 miles on 15 gallons of gas. Find how many gallons the van needs to travel 360 miles

Answers

Answer: The Van needs 18 gallons of gas to travel 360 miles.

please help! & please explain your answer!!

Answers

Answer:

Step-by-step explanation:

Plan A remains with $450 stable charge and Plan B is:

200 + 30x, with x being the number of physical training sessions

In order Plan B to be cheaper we set an inequality:

200 + 30x < 45030x < 250x < 250/30x = 8.33 < 9

theres 6 bags and 185 rasins how many are in each bag

Answers

Answer:

1110

Step-by-step explanation: If it was multiplication it would 1110 but you cat divide 185 by 6 so if it was 186, not 185 and you divided by 6 you would get 31 hope this helps

Abigail surveyed 40 students about their favorite kind of movie. The results are shown in the table. If there are 200 students in the school, predict how many more students prefer action movies to scary movies.

Answers

Answer:

Where is the Table?

Step-by-step explanation:

The number of students which prefer action-movies to scary movies are 25 students.

To predict how many more students prefer action movies to scary movies, we calculate difference based on proportion of students who prefer action movies from surveyed group and then apply that proportion to total number of students in school,

Number of students who prefer action movies = 14,

Total surveyed students = 40,

Total school students = 200,

Proportion of students who prefer action movies = (Number of students who prefer action movies) / (Total surveyed students),

Proportion of students who prefer action movies = 14/40 = 0.35,

Predicted number of students who prefer action movies in school = Proportion of students who prefer action movies × Total school students

Predicted number of students who prefer action movies = 0.35×200 = 70,

Predicted number of students who prefer scary movies in the school = (Number of students who prefer scary movies) / (Total surveyed students) × Total school students,

Predicted number of students who prefer scary movies = (9/40)×200 = 45

Difference = (Predicted number of students who prefer action movies) - (Predicted number of students who prefer scary movies),

Difference = 70 - 45 = 25,

Therefore, the correct prediction is that 25 more students prefer action movies to scary-movies.

Learn more about Prediction here

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The given question is incomplete, the complete question is

Jolene is creating a model of a pyramid. The model created will need to be scaled up from the blueprint. triangle ACB, point D is on segment AC between points A and C, point E is on segment BC between points B and C If segments DE and AB are parallel, which of the following expressions will help Jolene determine the length of segment AC? AC equals CB times CD all over CE AC = AB AC equals CB times AC all over CE AC = BC

Answers

Answer:

AC equals CB times CD all over CE

The lengths of the sides of the scaled drawing can be determined from the

relation between similar triangles.

The expression that will help Jolene determine the length segment AC is the option;

[tex]\displaystyle \underline{CD= \frac{CB\cdot CD}{CE}}[/tex]

Reasons:

The given parameters are;

The figure Jolene is trying to create = A scaled up blue print

Given that in ΔACB and ΔABC, we have;

DE and AB are parallel

Therefore;

∠CED ≅ ∠CBA by corresponding angles

∠CDE ≅ ∠CAB by corresponding angles

∠C ≅ ∠C by reflexive properties

ΔCDE ~ ΔACB by Angle-Angle similarity postulate

Therefore, by similar triangles, and triangle proportionality, we have;

[tex]\displaystyle \frac{AC}{CD} = \mathbf{\frac{CB}{CE}}[/tex]

Therefore;

[tex]\displaystyle CD= \mathbf{ \frac{CB\cdot CD}{CE}}[/tex]

Therefore, if segments DE and AB are parallel, the expression that will help Jolene determine the length segment AC is; [tex]\displaystyle CD= \frac{CB\cdot CD}{CE}[/tex]

Learn more about similar triangles here:

https://brainly.com/question/14445094

Use the division expression 8/12÷9/12.

Answers

Answer:

Step-by-step explanation:

Please answer number 5 only

Answers

Answer:

y=3

x=2

Step-by-step explanation:

3 x 18 =54

2 x 12 = 24

54+24=78

Answer:

x = 2; y = 3

Step-by-step explanation:

x + y = 5

12x + 18y = 78

Do system of equation

-> x = 2; y = 3

Write the equation of the line in point-slope form.

Answers

Answer:

y= 4/3x+2

Step-by-step explanation:

the y intercept is at 2 and you do rise over run for m

Compare the graph of Car A to the table of Car B to determine which car is traveling at the greates
speed and by how much. Show work.

Answers

Answer:

Car a is moving at 15 miles per hour

Its slope is 15/1

Its equation is y = 15x

Car b is moving at 7.5 miles per hour

Its slope is 7.5

Its equation is y = 7.5x

Car a is moving twice as fast as car b

Step-by-step explanation:

But here's how you solve

Chose 2 points and find the change in y and change in x, then divide in the same order.

Point 1: (1, 15)

Point 2: (2, 30)

Change in y = 15

Change in x = 1

y = miles

x = hours

15 miles/1 hour

You can also do this

Pick a point and just divide it's y by its x. For example:

(4, 60)

60 miles/4 hours

15 miles per hour

Now that we have the slope, we can get the equation for the graph:

y = 15x + 0

or just y = 15x, because there is no y-intercept

Now let's solve for car b:

Chose a point:

(3, 22.5)

Divide its y by its x

22.5/3

7.5

Car b is moving at 7.5 miles per hour

Now that we have the slope, we can get the equation for the graph:

y = 7.5x + 0

or just y = 7.5x, because there is no y-intercept

Compare the speeds

Car a: 15 mph

Car b 7.5 mph

15 > 7.5

So, Car a > Car b

15/7.5 = 2

So Car a moves twice as fast as Car b

(Type an ordered pair, using integers or decimals)

Answers

Answer:

(0,-3) is the correct answer because e-3 is on the y axis

Answer:

-5,0

Step-by-step explanation:

The x-intercept is where the line intercepts the x-axis

What is 29 divided by 0174620

Answers

0.0001660749

29÷0174620= 0.0001660749

hope this helped you- have a good day bro cya)

Answer:166.0749055091055

what is 4+4

This is for
ThomasBrennan1

Answers

Answer:

Step-by-step explanation:

1+1+1+1+1+1+1+1=8

take 4 ones and group them into 2 groups gives you 8

one will get the brainliest,Help me! to do this..i have been confused of this..please help

Simplify: (5/7-1/2 ) ×2 4/5 .

Simplify : 7/12 ÷( 1 1/3-3/4 )

Simplify∶ 2/3 ÷(1/2 ×4/5)

Simplify : (1/2+1/3) ÷ 1 2/3

Simplify : 2 1/3 ×2/7+1/4

Simplify : 3/4 of ( 3/5 + 1/3 )

Simplify : 3 1/3 of ( 3/5 -1/2 )

Simplify : ( 1 3/4 -1/2 ) ×2 1/5

Simplify : ( 5/9 –1/3 ) ÷2

Simplify : 1/4 +( 2 1/3 ×2/7 )

Simplify : 1/7 of ( 6 3/8 -1/4 )

Simplify : 5/11 of ( 1/2 + 3/5 ) ( 12 ×5 marks)

(13)From the books presented to a school library, 1/3 are educational publications

1/5 are literary publications, 3/7 of the remaining are translations. The

remaining books are children’s stories.

(i) What fraction of the total number of books is the educational and lite

Answers

1) 0.6

2) 1

3)1.66666666667

4)0.5

5)0.91666666666

6)0.7

7)0.333333333

8)2.75

9)0.111111111111

10)0.91666666666

11)0.875

13) i think this is it

8/15

A 16 ounce box of a certain cereal cost $2.24 what is the cost per ounce of the cereal

Answers

Answer:

$0.14 per ounce

Step-by-step explanation:

Divide $2.24 by 16 and theres your answer

what is a set? describe the use of braces for listing the members of a set.

Answers

Answer:A set is a collection of objects that have something in common or follow a rule. The objects in the set are called its elements. Curly braces are used to indicate that the objects written between them belong to a set

Answer: A set is a collection of objects that have something in common or follow a rule. The objects in the set are called its elements.

Curly braces are used to indicate that the objects written between them belong to a set.

What is set?

A set is a collection of objects that have something in common or follow a rule. The objects in the set are called its elements.

here, we have,

N={1,2,3,4,.......}

Determine the sets of natural number

Represent this set with letter N

From definition of natural numbers, they are integer numbers starting from 1;

In other words: 1,2,3,4,5, and so on.

To represent this as a set of N, we have

N={1,2,3,4,.......}

The ..... means that the counting still continues.

To learn more on set click:

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Instructions: Evaluate f(x) = 2x + 5 for the following and enter
your answer in the space provided. Do not include any spaces in
your answer.
f(-1) =
f(2)=
f(0) =
f(z)=

Answers

Answer:

f(1) = 3

f(2) = 9

f(0) = 5

f(z) =2z + 5

Step-by-step explanation:

f(x) = 2x +5 let x = -1; 2, 0, z and simplify if you can.

f(-1) = 2(-1) +5 ; -2 +5

f(2) = 2(2) + 5; 4 + 5

f(0) = 2(0) + 5; 0 + 5

f(z) = 2z +5; 2z + 5

Which numbers represent the solutions to the inequality below? Check all that apply.

Answers

Your answer will be -3 only

Identify the center and radius of the circle with equation x2 + y2 - 8x - 4y - 5=0.
center:
radius:

Answers

The center is 4,2
The radius is 5
Hope this helps

x^2 - 8x + y^2 - 4y = 5
(x^2 - 8x + 16) + (y^2 - 4y + 4) = 5 + 16 + 4
(x - 4)^2 + (y - 2)^2 = 25 = 5^2
Centre at (4, 2) with radius = 5

Given the linear equation r=-2.5 t and t can only be a negative number, what quandrant will the r coordinate be located?

Answers

Answer:

quadrant 4 i think

Step-by-step explanation:

Answer:

Actually the correct answer is 2

Step-by-step explanation:

Can anyone help me ?

Answers

Answer:

x=7.5

Step-by-step explanation:

15÷2=7.5

H.C.F of 4,5 and 10 in Division method

Answers

Answer:

Step-by-step explanation:

yan po sagot ko Hindi ko po alam kung tama o Hindi basta yan po sagot ko...

Answer:

Step-by-step explanation:

20 ÷ 2 = 10

20 ÷ 5 = 4

20 ÷ 4 = 5

please help on number 8!! it would be much appreciated

Answers

Answer:

a.) 135 degrees

b.) 45 degrees

c.) 45 degrees

Step-by-step explanation:

Use this link to see a visual representation on how to solve for these types of angles, it lets you click on any type of angle and see how it corresponds to other angles within the parallel line and traversal, give it a try!

https://www.mathsisfun.com/geometry/alternate-exterior-angles.html

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