Mathematics High School

I need help on this question (^～^;)ゞ​

I Need Help On This Question (^^;)

Answers

Answer 1

Answer:

21) x = 0

23) x = 7

Step-by-step explanation:

In a parallelogram, the opposite sides are congruent. Using this fact, we can create equations for both problems.

21)

[tex]2x + 18 = 18[/tex]

Subtract 18.

[tex]2x = 0[/tex]

Divide by 2.

[tex]x = 0[/tex]

23)

[tex]2x - 3 = 11[/tex]

Add 3.

[tex]2x = 14[/tex]

Divide by 2.

[tex]x = 7[/tex]

Related Questions

McKenna was asked to write the following expression in standard form.

3−5(3a+6)
When writing the expression in standard from, McKenna made a mistake.

3−5(3a+6)
3+(−5)(3a+6) Step 1

−2(3a+6) Step 2

−6a+(−12) Step 3

−6a−12 Step 4
a. McKenna made her first mistake in ____________

Question 2
b. The correct expression in standard form is ______

basically pls fill in the blanks :]

Answers

Answer: -15a - 27

Step-by-step explanation:

McKenna made her first mistake in Step 2. You would need to multiply -5 by 3a and 6, not add it to 3 first.

The correct steps would be:  

3−5(3a+6)

3+(−5)(3a+6) Step 1

3 - 15a - 30 Step 2

-15a - 27 Step 3

Torrence wants to remodel apartment . The first thing he is Going to do is replace the floors in the living space and kitchen .

Answers

I don’t see what u need help w.

Find the distance between the points (2, 4) and (8,-8) on a coordinate plane, to the nearest whole number.

Answers

Answer:

2,5

Step-by-step explanation:

2 to the right and 5 up

The figure is made by two right rectangular prisms.
What is the volume of the figure?

Answers

Answer:

d

Step-by-step explanation:

answer: d

step by step explanation:

What is the constant of proportionality for this problem?

Answers

Answer:

$ 825

Step-by-step explanation:

10 yard = $150

55yard = ?

55yard* $150 /10yard

55*15 =825 then the correct answer of

$55 yard is 825

1. Determine the lateral and total surface
area of the pyramid.


(I need full explanation on how to solve

Answers

Answer:

Laterial surface area: 73 cm²Total surface area: 93 cm²

Step-by-step explanation:

The laterial surface area is the sum of the areas of the triangles. There are two triangles with dimensions: base = 4 cm, height = 8cm and two triangles with dimensions: base = 5cm, height = 8.2cm.

The laterial surface area LSA is:

LSA = 2 • ( 4.8/2) + 2 • ( 5 • 8.2/2)

LSA = 4 • 8 + 5 • 8.2

LSA = 73 cm²

The total surface area SA is the LSA plus the area of the base of the pyramid, which is a rectangle with dimensions: 4cm x 5cm:

SA = LSA + 4 • 5

SA = 73 cm + 20 cm²

SA = 93 cm²

2.

Do the data in the table represent a direct variation or an inverse variation? Write an equation to model the data in the table.


inverse variation; xy = 12

inverse variation; [tex]\frac{y}{x} =12[/tex]

direct variation; y = 12x

direct variation; [tex]y=\frac{12}{x}[/tex]

Answers

Answer:  Other Answers..

SHOW ANSWER

6*2 =12

4*3 = 12

12*1 = 12

answer is B inverse variation xy=12

...............................................................................................................................................

Step-by-step explanation:  Brainly answers.. -_-

6*2 =12

4*3 = 12

12*1 = 12

answer is B inverse variation xy=12

...............................................................................................................................................

Answer:

The correct option is B.

Step-by-step explanation:

From the given table it is notices that the value of y decreases as x increases, therefore it is an inverse variation.

The inverse variation is defined as

Where, k is constant of proportionality.

From the given table it is clear that the value of y is 6 at x=2.

The value of k is 12. So, the required model is

Therefore, the correct option is B.

Answer: B

Step-by-step explanation:

Find the height of the pyramid.
Volume

Answers

Answer:

5

Step-by-step explanation:

like my answer please...

(07.07) H U R R Y, please ;) 15 points!
Tracey built a small boat and recorded the distance it traveled. The table below shows the distance traveled (f) during the first 4 seconds after starting (p).


Elapsed Time
(seconds) Distance Traveled
(feet)
1 4.2
2 8.4
3 12.6
4 16.8


Which of the following equations represents the relationship between the distance traveled and the elapsed time?
p = 4.2f
f = 4.2p
p = 4.2 + f
f = 4.2 + p

Answers

im not sure i think its 14.2

Please help? Is this correct i need tight now poease

Answers

Answer:

Yes

Step-by-step explanation:

Your answer is correct :) good job and keep it up!

Hello fello humans I need help on this question please and thank you :)

Answers

Answer: The value of x is 6.

Step-by-step explanation:

In the figure we have two secants.

A secant is a line that intersects a circle in exactly two points.

For the figure attached below:

[tex]a\times b=c\times d[/tex]

So for the given figure,

[tex]x\times 8=4\times (4+8)\\\\\Rightarrow\ x=\dfrac{4\times12}{8}\\\\\Rightarrow\ x=6[/tex]

Hence, The value of x is 6.

Answer:

x=6

Step-by-step explanation:

and hello to you as well

giving 5 stars to right person

Answers

Answer:

12/40

Step-by-step explanation:

12/40=3/10

0.7 as 1 minute
And is it okey if you could tell me how you did it?

Answers

Answer:

Hello There!!

Step-by-step explanation:

You multiply 0.7 by 60 which is 42 seconds.

hope this helps,have a great day!!

~Pinky~

Are the two triangles congruent ? Please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!

Answers

Answer

YES

Step by step Explanation

Answer:

There is not information given to assume the triangles are congruent.

Step-by-step explanation:

You can tell if two triangles are congruent by any of the following rules:

Three sides are congruent (SSS),

Two angles and a side in between are congruent (ASA)

Two sides and an angle in between are congruent (SAS)

Two angles and a side connected to one of those angles are congruent (AAS)

Note: SSA (Two Sides & One Angle) does not work. I good way to remember is that it spells a bad word backwards :)

In this case, there are only two sides given, but there aren't any angles, so there is not enough information to conclude if they are congruent or not.

solving by elimination
7x-y=19
2x-3y=19​

Answers

Answer:

2x + y = -2, x + 2y = 2

4x + y - 2z = 0, 2x+ 3z = 9 , -6x - 2y + z = 0

x + y = 4 , x - y = 2

Step-by-step explanation:

Answer:

x=2 and y=−5

Step-by-step explanation:

Let's solve your system by elimination.

7x−y=19;2x−3y=19

Multiply the first equation by -3,and multiply the second equation by 1.

−3(7x−y=19)

1(2x−3y=19)

Becomes:

−21x+3y=−57

2x−3y=19

Add these equations to eliminate y:

−19x=−38

Then solve−19x=−38for x:

−19x=−38

(Divide both sides by -19)

x=2

Now that we've found x let's plug it back in to solve for y.

Write down an original equation:

7x−y=19

Substitute2forxin7x−y=19:

(7)(2)−y=19

−y+14=19(Simplify both sides of the equation)

−y+14+−14=19+−14(Add -14 to both sides)

−y=5

y=-5

Find the surface area of a sphere with a diameter of 14

Answers

Answer:

SA = 615.44

Step-by-step explanation:

d = 14

r = d/2

r = 7

SA of a Sphere:

SA = 4πr²

SA = 4(3.14)(7²)

SA = 4(3.14)(49)

SA = 12.56(49)

SA = 615.44

Someone plz help!! Plz read the question

Answers

Answer:

preferred

ability

extraordinary

parading

playing

squeaky clean

occasion

immediately

Explain why dividing each side of \small 3x^2=6x by \small 3x is not a reliable way to solve the equation.

Answers

Answer:

See Explanation

Step-by-step explanation:

Given

[tex]3x^2 = 6x[/tex]

Required

Why dividing by [tex]3x[/tex] is not reliable

The reason is that, the given expression is a quadratic equation and as such, it will most likely have two solutions.

So, when the expression is divided by [tex]3x[/tex], the solution will be [tex]x = 2[/tex], leaving out the other possible solution.

The right way is:

[tex]3x^2 = 6x[/tex]

Subtract 6x from both sides

[tex]3x^2 - 6x = 6x - 6x[/tex]

[tex]3x^2 - 6x = 0[/tex]

Factorize

[tex]3x(x - 2) = 0[/tex]

Split

[tex]3x = 0\ or\ x - 2 = 0[/tex]

Solve for x in both cases:

[tex]x = 0\ or\ x = 2[/tex]

HELP ILL GIVE BRAINLIEST


Select all equivalent
equations for the translation of "four times the sum of
a variable and nine equals eighteen".
4+ (x + 9) = 18
4(x)(9) = 18
4(x + 9) = 18
4x + 4(9) = 18
4x + 9 = 18

Answers

Answer:

No - 4+ (x + 9) = 18  

No - 4(x)(9) = 18

Yes - 4(x + 9) = 18

Yes - 4x + 4(9) = 18

No - 4x + 9 = 18

How does the graph of f(x)=|x| compare with the graph of g(x) = 1/2|x| select all that apply

Answers

Answer:

I don't see the choices but both graphs are absolute value graphs. I think  g(x) = 1/2|x|  is the shrink of f(x)=|x|

can you help me i will mark if i can

Answers

Answer:

i think it is d

Step-by-step explanation:

Work out the area of this circle.
Give your answer in terms of it and state its units.
14 cm

Answers

Answer:

area = 153.94

Step-by-step explanation:

Diameter = 14. Half of 14 is 7, so radius = 7.

Formula for the area of a circle = π * r^2, so π * 7^2 = 153.93804

the names of 11 boys and 6 girls from your class are put into a hat. what is the probability that the first two names chosen will be a boy followed by a girl( dependent probability

Answers

Answer:

25%

is that what you were looking for?

The senior classes at Portland High School and Biddeford High School planned separate
trips to New York City. The senior class at Portland High School rented and filled 1 van
and 6 buses with 372 students. Biddeford High School rented and filled 4 vans and 12
buses with 780 students. Each van and each bus carried the same number of students. How
many students can a van carry? How many students can a bus carry?

Answers

I believe it would be 47

Please help and thank you

Answers

Answer:

D

Step-by-step explanation:

Help please!! Will mark brainstest!!
Scatter Plot is in the picture.
It says write an equation for the trend line.
A) y=-12.5x+250
B) y=12.5x+250
C) y=6.25x+225
D) y=-6.25+225​

Answers

The correct answer is letter B

a model ship is 0.38 M long how long is the ship in centimeters

Answers

Answer:

Actual length of ship is  150  meters.

Step-by-step explanation:

As model ship is built to a scale of  

1 centimeter  : 5  meters and

length of model ship is  30  centimeters

Actual length of ship is  30 × 5 = 150  meters.

38 centimetres is the answer

explain how you can tell whether a group of ratios represents a proportional relationship. PLEASE HELP

Answers

Ratios are proportional if they represent the same relationship. One way to see if two ratios are proportional is to write them as fractions and then reduce them. If the reduced fractions are the same, your ratios are proportional.

hope this helps :)

what is the x-intercept of the graph 4x-6y=12

Answers

So the x-intercept is 3. Also, the y-intercept can also be obtained by putting x=0 in the equation to get y=12/(-6)=-2

Five less than the quotient of a number and 3 is 13. What is the number? Let n be the unknown number.

Answers

[tex]\frac{n}{3} -5=13\\\frac{n}{3} =18\\n=54[/tex]Answer: n=54

Step-by-step explanation:

[tex]\frac{n}{3} -5=13\\\frac{n}{3} =18\\n=54[/tex]

Answer:  n/3 - 3 = 13

so its 48  your welcome

Step-by-step explanation:

Other Questions
definition of geostrophic forceGeostrophic wind A sealed room in a hospital, measuring 5m wide, 10m long, and 3m high, is filled with pure oxygen.One cubic meter volume of oxygen contains 1000L gas, and 22.4L of oxygen gas contains6.02 x 1023 molecules (Avogadro's number).A. 2.1976 x 100 moleculesB. 3.0051 x 1026 moleculesC. 4.0313 x 1027 moleculesD. 7.5014 x 1030 molecules Leland hit the target 45 times in 50shots using a bow and arrow. Basedon his first 50 shots, what would be areasonable prediction of the numberof times Leland would hit the targetin 200 shots? Excerpt from Oliver Twist By Charles DickensThe medical gentleman walked away todinner and the nurse, having otae moreapplied herself to the green bottle, sat downon a low chair before the fire, and proceededto dress the infant. What an excellent exampleof the power of dress, young Oliver Twist was!Wrapped in the blanket which had hithertoformed his only covering, he might have beenthe child of a nobleman or a beaglandit wouldChave been hard for the haughtiest stranger tohave assigned him his proper station in societyBut now that he was enveloped in the oldcalico robes which had grown yellow in thesame service, he was badged and ticketed,and fell into his place at once a parish child-the orphan of a workhouse-the humble, half-starved drudge to be cuffed and buffetedthrough the world-despised by all, and pitiedby noneOliver cried lustily. If he could have known thathe was an orphan left to the tender mercies ofchurch-wardens and overseers, perhaps hewould have cried the louder.Which phrase from the excerpt explains how people are judged?A. What an excellent example of the power of dress young Oliver Twist was!B.it would have been hard for the haughtiest stranger to have assigned him his proper station in societyC.in the old calico robes which had grown yellow in the same service he was bagged and ticketed, and feel into his place at once D.to be cuffed and buffeted through the world despised by all, and pitied by none pls helppp Ill mark u brainliest!! How many moles of solute are in 53.1 mL of 12.5M HCI? pls help me somebody Which table represents a quadratic function? About how far can a fifth grader be expected to run without resting?O 1/2 mile 1 pileO 1%milesO 3/4 mileANSWER IS 1 mile Alex finds a remnant of landscaping fabric at a garden store . The fabric is the standard width , with length 9.7 m . Alex needs twelve 0.85 - m pieces for a garden patio . a ) Will Alex have more fabric than she needs ? If so , how much more ? b ) Will Alex need more fabric ? If so , how much more ? When presenting, what key elements can make it successful? a. use graphic tools c. present it like you are talking naturally, not reading from the paper b. reading it exactly as it is written so you dont get confused d. a and c only Which of the quadratic functions has the narrowest graph? How did nationalization affect Russia's economy? HELP WITH THIS PLEASE!!! 15) Suzanne bought 3 quarts of orange juice, 4 quarts of apple juice, and 5 quarts ofwater at the store. How many gallons of liquid did she buy? The information shown in the graph indicates that __________. A. as the wealth of Americans increased, the rate of personal savings also increased B. each time the personal savings rate dropped, the wealth of Americans dropped C. there is no correlation between wealth and savings D. as the wealth of Americans increased, the rate of personal savings decreased Write a sentence in Spanish following the topics and requirements.Sentence 1:Write one question in Spanish to ask the reader if he/she knows an interesting fact about a natural disaster.REQUIREDUse saber in the imperfect tense.Sentence 2:Write one sentence in Spanish to describe something that was being done because of the natural disaster.REQUIREDUse one progressive tense verb in the preterite tense or the imperfect tense.Sentence 3:Write one sentence in Spanish that provides a call for action that you would like your reader to take.REQUIREDUse one persuasive phrase.ANDUse one progressive tense verb in the present tense, preterite tense, or imperfect tense.Sentence 4:Write one sentence in Spanish that provides a second call for action that you would like your reader to take.REQUIREDUse one persuasive phrase.ANDUse one progressive tense verb in the present tense, preterite tense, or imperfect tense. A 1-kg ball is 12 m above the ground, with an initial velocity = 0 m/s.Use the following formulas[ KE = 1/2 xm x V2][P.E = mxgxh] . g =9.8 m/s2[ Mechanical energy = K.E + P.E] What is the answer to this? I really need help with this. Can you help me please?