Mathematics High School

PLEASE HELP I WILL CHOOSE BRAINLIEST!

PLEASE HELP I WILL CHOOSE BRAINLIEST!

Answers

Answer 1

Answer:

x=9

Step-by-step explanation:

Use the triangle Similarity theorem. First, make a proportion.

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

21 / 77 is equal to 30 / 11x + 11         then solve.

Step 1: Cross-multiply.

21*(11x+11)=(30)*(77)

231x+231=2310

Step 2: Subtract 231 from both sides.

231x+231−231=2310−231

231x=2079

x=9

HOPE THIS HELPS!

Related Questions

= Simplify the following algebraic expressions given below into their equivalent standard forms.

(x + 10)(x + 10)

Answers

Answer:

https://tex.z-dn.net/?f=(x%2B10)%5E%7B2%7D%20

Step-by-step explanation:

Find 3[g(4)] if g(x) = -2x + 10

Answers

Answer:

6

Step-by-step explanation:

= 3[-2(4) + 10]

= 3(-8 + 10)

= 3(2)

The function is given as  g(x) = -2x + 10 then the solution of the 3[g(4)] would be equal to 6.

What is a function?

A function is a type of relation, or rule, that maps one input to a specific single output.

Functions that are formed by composing two or more functions in a way that one's output is another's input are called composite functions.

They are also called functions of functions.

We have to find 3[g(4)] if g(x) = -2x + 10

3[g(4)] = 3[-2(4) + 10]

3[g(4)]  = 3(-8 + 10)

3[g(4)]  = 3(2)

3[g(4)]  = 6

Learn more about function here:

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Flora drew the following graph to answer the question. What was her mistake when she drew her graph?

Answers

Answer:

She drew the graph too steep, if she is going down at a constant rate of 300 ft per hour, at 1 hour she would be at 2,700 ft. it would take her about 10 hours to get down the mountain.

Tasneem has a sample of 12 bags of candy. She recorded the mass, in grams, of each bag. Her data is shown.

Answers

Answer:

the answer is D

Step-by-step explanation:

The Dot plot for Alia's Sample is plot D.

What is Dot plot?

Based on the values of each point, a dot plot visually groups the number of data points in a data set. Similar to a histogram or probability distribution function, this provides a visual representation of the data distribution.

Tasneem has a sample of 12 bags of candy.

Now, the median for Tasneem sample space is

= (47.1 + 47.2)/ 2

= 47. 15

As, the median mass in A is 47.05, B is 47.1, in C is 47.1 and in D is 47.4.

Also, we know that the median mass for Alia's Sample is greater than Tasneem.

Thus, the correct plot is D.

Learn more about Dot plot here:

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A trapezoid has an area of 50 square units. The lengths of the bases are 10 units and 15 units. find the height.
(Explain how did you solve)

Answers

Step-by-step explanation:

area = ( base 1 + base 2 ) ÷ 2 x height

50 = ( 10 + 15) ÷2 x height

50 ÷ 12.5 = height

height = 4

c) Out of 700 full marks rumba got 250 markes failed 30 marks what is
the pass percentage?​

Answers

here's the solution,

rumba got 250 marks !!

if she had got 30 more marks then she would had passed the exam,

So, passing marks :

=》250 + 30

=》 280 marks

now, passing percentage :

=》

[tex] \dfrac{passing \: \: marks}{total \: \: marks} \times 100[/tex]

=》

[tex] \dfrac{280}{700} \times 100[/tex]

=》

[tex] \dfrac{280}{7} [/tex]

=》

[tex]40[/tex]

Hence, the passing percentage is 40%

Can someone please help me

Answers

Answer: I'm not to sure about this question its kind of confusing.

Step-by-step explanation:

For an upcoming election, 500 registered voters were surveyed on a tax increase. 43% were for a tax increase and 51% were against a tax increase. The margin of error was 6%. What is an accurate conclusion from the poll?
a. Against a tax increase will win because it is above 50%.
b. The nal result is undecided because of the margin of error.
c. The nal result is undecided because percentages do not add up to 100%.
d. Against a tax increase will win because the margin of error will increase their percentage.

Answers

Against a tax increase because either way the margin of error may fall, against will still have more votes

PLS I NEED HELP BRANLIEST FREE
the square below is being reduced by a scale factor of one-third. what is the perimeter of the new drawing.

Answers

Step-by-step explanation:

Scale factor=1/3

one side of spuare=9 (being reduced)

=9÷3=3

perimeter =(3)4

=12cm

Oscar and Eli set up a lemonade
stand. If they have prepared 23
gallons of lemonade, how many
1-cup servings can they sell?​

Answers

Answer:

368 cups

Step-by-step explanation:

16 cups in a gallon

Multiply 16 by the 23 gallons

Receive the answer of 368

Hope this helps

Answer: 368

Step-by-step explanation:

1 US liquid gallon = 16 US cups

Multiply 16 times 23 to get 368

 Can someone pleaseeee help and if you’re correct i’ll give brainliest

Answers

Answer:

First answer: 3

Second answer: 6

Each square you see on the cube you add +1 to get 3

But in total the cube has 6 faces

Answer:

You can see 3 faces

There are 6 faces in a cube

Please help ASAP ASAP

Answers

Answer:X=110

Step-by-step explanation:

When you divide 196 by 20 you get 9.8 so when you divide 1078 by 9.8 you get 110

I think that the answer is 110=x

Find the profit or loss if:
Cost price = $19.85 Selling price = $20.20
tell me also wether it’s a profit or loss

Answers

Answer:

It would be a profit  of .35 cents

Step-by-step explanation:

Answer:

it is a profit by 0.35 cents

Step-by-step explanation:

That is becuase it costed you 19.85 so you ost 19.85 and gain 35 cents becuase you are selling it for a higher price

Answer the question in the picture?

Answers

Answer:

19

Step-by-step explanation:

we know the sides of a rhombus is all equal, so:

4(2x+4)=168

8x+16=168

8x=152

x=19

What is the area of the triangle?

Answers

Answer:

289m2

Step-by-step explanation:

The mathematical formula  for the area of the triangle is:

base x height / 2

Tickets for a concert cost $10 each if you order them online, but you must pay a service charge of $8 per order. The tickets cost $12 each if you buy them at the door on the night of the concert. Write a system of equations to model the situation. (Identify your variables)

Answers

Answer:

below

Step-by-step explanation:

x: ticket

y: total cost

y= 10x + 8

y= 12x

7.5% of what number is equal to 85% of 200?
Help

Answers

2266 and 2/3s. 85% of 200 is 170. 170/7.5 = 22.66666 x100 = 2266.66

2. A jeweler bought an antique watch for $500. He then sold it in his store $850. What was the percent of change in the price of the watch? Show work here A. 41.2% decrease B. 41.2% increase C. 70% decrease D. 70% increase​

Answers

Answer:

70% increase

Step-by-step explanation:

Answer the question in the picture?

Answers

The answer should be 91.

help me asap please, i really need it.
THERE ARE TWO ANSWERS FOR EACH QUESTION, PLEASE PROVIDE BOTH ANSWERS FOR EACH QUESTION TO EARN FULL CREDIT. BE SURE TO NUMBER YOUR ANSWERS.

Answers

cos 48° = b / √(a²+b²)

tan 48° = a/b

sin 48° = a / √(a²+b²)

Someone please tell me the answers to this please I beg you

Answers

1) 216
2) 203
3) 315
4) 256
5) 576
6) 440

What is the degree of 12x^4 -8x+ 4x^2 - 3?

Answers

Answer:

4

Step-by-step explanation:

In this problem, we are asked to determine the degree of the given expression 12X4 - 8X + 4X2 -3. To answer this, first, we need to arrange the mathematical expression in descending order with respect to its power such as the new arrangement will become 12x4 + 4x2 -8x -3. The degree is clearly visible and it is 4. Therefore, the answer to this problem is is 4.

Due tonight.. *no links*

Answers

Answer:

28=x

78=y

Step-by-step explanation:

The lines are perpendicular so 78 would be the same for the top line. So the equation fill in would be (5x-62)=78 turning x into 28

What is the expression for k more than 8?

Answers

Answer:

k>8

Step-by-step explanation:

k more than 8 indicates that the value of k is larger than 8. So the inequality sign opens towards k and closes towards 8.

Hope this helps!

Answer:

9 is bigger than 8

Step-by-step explanation:

HELPP
giving brainliest

Answers

Answer:

4 feet 10 in

Step-by-step explanation:

58/12= 4 10/12= 4 feet 10 in

Answer:

4ft 10in

Step-by-step explanation:

58/12 = 4 10/12

3m + 2n + 4;
m = 2 and N =4
D2 + 9k; d = 10 and k =9
3m + 4y x 2 m = 7, y = 10

Answers

Answer:

1. 18

2. 181

3. 101

Step-by-step explanation:

They want you to take each equation, and replace the letter with the number they give you after the equation.

3m + 2n + 4; m = 2, n = 4

This becomes

3(2) + 2(4) + 4

We multiply before we add, according to the order of operations. So next, the equation becomes:

6 + 8 + 4

= 18

———-

D^2 + 9k ; D = 10, k = 9

Numbers squared are numbers multiplied by themselves.

(10)(10) + 9(9)

= 100 + 81 = 181

——————-

3m + 4y x 2 ; m = 7, y = 10

3(7) + 4(10) x 2

21 + 40 x 2

Remember, multiplication always comes before addition.

21 + 80 = 101

Please let me know if you have questions on this.

a lego brick is 5/6 of a cm long, how long will the total length of 336 bricks be?

Answers

Answer:

278.88 cm

Step-by-step explanation:

Michael completely covered a square wall using 101.5ft2 of wallpaper without any overlap. Which measurement is closest to the side length of this wall in feet?

Answers

Answer:

10[tex]ft^{2}[/tex]

Step-by-step explanation:

Find the square root of 101.5 and round it.

√101.5=10.0747208398

10.0747208398≈10

So, the side length is 10[tex]ft^{2}[/tex].

I will mark you brainiest if you an answer this

Answers

Answer:

the awnswer is a = 7 + c

Step-by-step explanation:

8/9 ÷ 2/3 - 5/6
step by step fast​

Answers

Answer:

is 1/2 or .5

Step-by-step explanation:

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