Mathematics High School



Find the value of x.

A.18
B.15
C.16
D.19

PLEASE HELP!!!!!

Find The Value Of X.A.18B.15C.16D.19PLEASE HELP!!!!!

Answers

Answer 1

Answer:

x = 19

Step-by-step explanation:

123°+3x = 180°

3x = 180°-123°

3x = 57

x = 57/3

x = 19

The reason why we use 123° + 3x = 180° because both are adjacent angles. Adjacent angles add up to 180°

Related Questions

I need help with this problem

Answers

Answer:

y= x+1

y= x-5

There are 0 solutions because the lines will never intersect (which is due to their slopes being the same).

Step-by-step explanation:

Because we don't have any numbers we're supposed to esitmate, but the important thing to realize is that the slopes are identical

so let's say our equations are

x+1

x-5

2.)

There are 0 solutions because the lines will never intersect (because their slopes are the same)

Answer:

see explanation

Step-by-step explanation:

The solution to a system of equations given graphically is at the point of intersection of the 2 lines.

Therefore if the lines are parallel, they never intersect and hence there is no solution.

The lines given appear to be parallel and so there is no solution.

A game has 50 cards with 10 each numbered 1 to 5,and a player must draw a 2 or a 3 to move out of the "start" position.

Answers

Answer:

The question isn't complete, so I will assume that we want to find the probability of moving out of the start position.

First, we know that there is a total of 50 cards.

of these 50 cards, we have:

10 with the number 1

10 with the number 2

10 with the number 3

10 with the number 4

10 with the number 5

To move out of the starting position, we need to draw a 2 or a 3.

And we have 10 of each, then there are 20 cards that allow us to move out of the start position.

The probability of moving out of the starting position in the first draw, is equal to the quotient between the number of cards that allow us to move out of the starting position (20) and the total number of cards (50), this is:

P = 20/50 = 2/5 = 0.4

I would ask a question but half the mfkas on here have failed me so many tests. So I j want to let you guys know that you all are r e t a r t e d.

Answers

Answer:

please dont use the r slur :)) and if you care so much about your grades, heres an idea!! study on your OWN and dont rely on others

Step-by-step explanation:

Someone plz help me I beg u plz I need this I’ll really appreciate it

Answers

Answer:

i cant see the words

Step-by-step explanation:

600 students sat a Math exam. If 86% of students passed the exam, the percentage of people who FAILED is
with step to step calculation

Answers

Answer:

84

Step-by-step explanation:

100-86 is 14

14percent passed so it is 84

Plot these numbers on the number line:
V2, V5, 3v8, v9, v15, 3v25

Answers

NosenxjjBzhajkakaajs

Describe the steps you can use to graph the function y=2x^2-8

Answers

Answer:

The first thing you need to find is the axis of symmetry by using

-b/2a

after you find that, use it to find the vertex of

x

2

+

8

In this case x should equal

0

so

y

=

0

2

+

8

giving just 8

the y-intercept is 8 as

c

=

8

the graph should look like this

graph{x^2+8 [-11.5, 8.5, 0.84, 10.84]}

it is a parabola.

https://socratic.org/answers/466874

or https://socratic.org/answers/466890

Step-by-step explanation:

A box contains 20balls,x of which are white.if the probability of selecting a non white ball at random is 3/5.find the value of x​

Answers

Answer:

8

Step-by-step explanation:

So there are 20 balls.

3/5 of them are NOT white.

This means 2/5 of them ARE white.

So knowing this, lets find the number of white balls(x).

To do this, lets multiply the 20 total balls by the 2/5 of them that are white:

20/1*2/5

=

40/5

=

8

So we know that 8 of the balls are white!

Hope this helps! :)

Find the area of that with explanations thanks

Answers

Answer:

900m or 300m

Step-by-step explanation:

45 x 20 = 900

30 x 10 = 300

The area is 1,200.

How to get your answer:
30x10= 300
45x20=900
900+300=1,200
I hope this helped you :)

plzzzz help im stuck hurry pls

Answers

Answer:

x ≥ -2

Step-by-step explanation:

x is greater than or equal to -2

x≥ -2

25% of what number equals 100

Answers

Answer:

its 400

Step-by-step explanation:

Find KL pls fast correct answer

Answers

Answer:

14

Step-by-step explanation:

According to intersecting secants theorem:

KL*JL = ML²

Substitute values and solve for x:

(x - 1)(x - 1 + 7) = 12²(x - 1)(x + 6) = 144x² - 5x - 6 = 144x² - 5x - 150 = 0x² - 15x + 10x - 150 = 0x(x - 15) + 10(x - 15) = 0(x - 15)(x + 10) = 0x = 15x = -10 (ignored as negative)

Find the value of Kl

KL = x - 1 = 15 - 1 = 14

PLEASE HELP ME 15 POINTS

1- Which vehicle has the better gas mileage? Explain your reasoning using a line graph comparing the number of gallons to the number of miles covered.


2- Describe the graph:

Answers

I think you are missing some parts of the question
You have to add the background info for us to answer this

Which measure describes the standard error of the mean?

A.
the central limit theorem
B.
the confidence interval
C.
the sample mean
D.
the standard deviation of the means

Answers

Answer: the standard deviation of the means (D)

Step-by-step explanation:

What is the value of the expression (9 1/3)^3?

Answers

Answer:

rounded to the nearest hundredth the value is 813.04

Step-by-step explanation:

25 + (9 x 2) in this problem? What would you do first to solve?

Answers

Answer:

Solve what's in the parentheses

Step-by-step explanation:

You always solve what's in the parentheses first.

ITS URGENT!!!!

SOMEBODY PLEASE HELP ME WITH THIS QUESTION!! YOU CAN SEE ALL THE ANSWER CHOICES IN THE PICTURE ABOVE!!! THANK YOU

Answers

Answer:

A

Step-by-step explanation:

y=2(x-3)^2-3

replace x for x in the table

so y=2(1-3)^2-3

            -2*-2

              4*2

                 8-3

                 y=5

just like in the table

Solve for x. The figure is a parallelogram

Answers

Answer:

x = 1

Step-by-step explanation:

The opposite angles in a parallelogram are congruent, then

94x + 1 = 95 ( subtract 1 from both sides )

94x = 94 ( divide both sides by 94 )

x = 1

Find the length of BC please

Answers

THE ANSWER WOULD BE 5.5

EXPLANATION: AB IS 2.5 and DC IS 8
2.5 - 8 = 5.5

hi! please help i’ll give brainliest

Answers

Answers:

deposition of eroded materials

Step-by-step explanation:

the answer would be deposition from eroded material because of W.E.D ( weathering, erosion , and deposition )


. What are the two factors of 3x^2+
13x + 14

Answers

Answer: im pretty sure it is 3x and 13x

Step-by-step explanation:

pls mark brainlest

Which is the perimeter of the shape? (1 point)

Answers

Answer:

16 ft

Step-by-step explanation:

To find the perimeter of a square you must:

1. add all of the lengths together (4+4+4+4=16)

Have a great day.

16 because you just add 4<*<£|~£,*,%~>|>{~^?^?^?^?^\¥.

In Stacia's town, 60% of registered people vote
regularly. A spinner with equal-sized sections
numbered 0 to 9 can be used to represent those
who do and
do not vote.
a. What numbers can be assigned to represent
those who do vote and those who do not vote?

Answers

Answer:

6 Voted , 4 Not Voted

Step-by-step explanation:

10 sections, so 0.60 * 10 = 6 sections Voted

0.40 * 10 =  4 sections not Voted

Which point best represents 10?
P
Q
R
S
wt
0
1
2
4
5
S
P
R
Q

Answers

Answer:

Q

Step-by-step explanation:

The square root of √10 shown in decimal form is 3.1622776... and the placement of Q is the closest to the answer.

Put these numbers in smallest to largest

Answers

3.07, 3.7, 3.77, 7.3, 7.33

3.07, 3.7, 3.77, 7.3, 7.33

PLEASE HELP IT'S URGENT!!!
The coordinate grid shows the graph of four equations:

A coordinate grid is shown from negative 12 to positive 12 on the x axis and also on the y axis. Line A passes through the ordered pairs negative 3, 4 and 9, negative 2. Line B passes through the ordered pairs 2, 8 and 8, negative 8. Line C passes through the ordered pairs negative 3, negative 4 and 4, 6. Line D passes through the points 2, negative 2 and 5 and 6.
Which set of equations has (1, 2) as its solution? (5 points)

Select one:
a. A and D
b. C and D
c. A and C
d. B and D

Answers

Answer:

C. A and C

Both pass by (1,2)

Simplify the product. Write your answer in standard notation 2y(5y^2 + 3)

Answers

Answer:

10y^3+6y

Step-by-step explanation:

A chemical company mixes pure water with their premium antifreeze solution to create an inexpensive antifreeze mixture. The premium antifreeze solution contains 70% pure antifreeze. The company wants to obtain 140 gallons of a mixture that contains 20% pure antifreeze. How many gallons of water and how many gallons of the premium antifreeze solution must be mixed

Answers

Answer:

40 gallons of premium antifreeze and 100 gallons of water should be used to obtain 140 gallons of a mixture that contains 20% pure antifreeze.

Step-by-step explanation:

Since a chemical company mixes pure water with their premium antifreeze solution to create an inexpensive antifreeze mixture, and the premium antifreeze solution contains 70% pure antifreeze, and the company wants to obtain 140 gallons of a mixture that contains 20% pure antifreeze, to To determine how many gallons of water and how many gallons of the premium antifreeze solution must be mixed, the following calculation must be performed:

50 x 0.7 + 50 x 0 = 35

40 x 0.7 + 60 x 0 = 28

30 x 0.7 + 70 x 0 = 21

29 x 0.7 + 71 x 0 = 20.3

28.57 x 0.7 + 71.43 x 0 = 20

140 x 0.2857 = 40

Therefore, 40 gallons of premium antifreeze and 100 gallons of water should be used to obtain 140 gallons of a mixture that contains 20% pure antifreeze.

hey i’ll give brainliest please help

Answers

Answer:

I believe it would be C if not then im sorry

Step-by-step explanation:

Can someone please help me out with this question please I beg you no links

Answers

The cost of each ticket was $17.50 dollars
Other Questions
What is the exponential regression equation for the data set?y=1.0832.11xy=(1.0832.11)xy=32.110.08xy=32.111.08x The train journey between London King's cross and Durham is 2hours and 50 minutes. If a train leaves London at 08:40 at what time doses it arrive in Durham? Write an essay pretending to be an Ecologist studying the Green Sea Turtle. As an ecologist what is important for you to study? What is the habitat of your animal? Is the animal an endangered species? Can the species be saved? If it is being saved how is the species being saved? Use the formula R = log I, where R is the measurement of the Ritchter scale and i is the intensity, to find the Ritchter scale measurement of an earthquake with intensity 24,000,000. NO LINKS!!! could you help me by chance? 2. All of the following statements are true regarding wood versus metal except: a) Wood has better electrical insulation which decreases with moisture content b) Wood structures dampen vibrations much better than metal, due to internal friction within the materials c) Under sustained loads wood stops to deform d) Wood has much better R value than metals Guys Whats is 4+1037+76 I'll give branliest no calculator no search only brain all of u I eill give brainliest please help me How is entropy related to the spontaneity of a reaction? AP3X Suppose a person offers to play a game with you. In this game, when you draw a card from a standard 52-card deck, if the card is a face card you win "$2, and if the card is anything else you lose $1". If you agree to play the game, what is your expected gain or loss (in dollars) per game? (Recall that there are 12 face cards in a standard 52-card deck. Round your answer to two decimal places.) $ What kind of text structure does the author MOSTLY use in paragraph 3 to explain the realationships between air pressure and storms? For as long as Jaime can remember his mother has always loved to sing "La Bamba " Jaime asks her to writedown the following lyrics so that he can memorize them,According to these lyrics what is 'La Bamba'?Parabatlaw la bambaPara badau la bandaSe necesita una poca de graciastina poca de gricapara may pantoAmbay arribaYarriba y auriba Which of the following verbs is a regular verb? *1 pointa. Allerb. Avoirc. Aimer Please help me with this math problem write a narrative essay about overcoming a challenge and what you learned as a result Which of the following, to the nearest tenth, is a solution of f(x) = g (x) if f (x) = in (x + 5 ) - 1 and g(x) =x^3 - 2x+1 A) 0.5B) -1.6C) -2.3D) 1.9 The standards for product V28 call for 8.3 pounds of a raw material that costs $19.00 per pound. Last month, 2,200 pounds of the raw material were purchased for $41,360. The actual output of the month was 240 units of product V28. A total of 2,100 pounds of the raw material were used to produce this output.The direct materials purchases variance is computed when the materials are purchased.Required:a. What is the materials price variance for the month?b. What is the materials quantity variance for the month? jannie has 2 liters of orange squash she also has some empty cups One full Beach club holds 30 mL of orange squash jennine files as many cups as possible How much orange squash does janine have after filing as many cups as possible y=25 is a solution to the inequality y24 What is the longest line segment that can be drawn in a right rectangular prism that is 12 cm long, 11 cm wide, and 8 cm tall? For each sentence, drag a word that will make the statement true.Words may be used once or more than once.always returned to choices list.sometimesalwaysneverEquilateral triangles are acute triangles.Scalene triangles are acute triangles.Right triangles are acute triangles.Obtuse triangles are isosceles triangles.