Mathematics High School

Given: AC = 4DC, BC = 4EC
Prove: A = D​

Given: AC = 4DC, BC = 4EC Prove: A = D

Answers

Answer 1
Two triangles that are proportional to each other and have the same angle are similar.

Related Questions

Help ASAPPPPP PLZZZZZZ

Answers

I believe the answer is x = 64.1°. Hope this helps!

When factoring the equation 9x2+9x+2 what two numbers will the "9x" term be broken into?

Answers

Answer:

it will be broken into 9*what ever x is

Hope This Helps!!!

Answer:

9×x

Step-by-step explanation:

18+9x+2

20+9×x

that means 9 and x

The left and right page numbers of an open book are two consecutive integers whose sum is 195

Answers

Answer:

97, 98

Step-by-step explanation:

a = first number

a + 1 = consecutive number

then:

a + a+1 = 195

2a + 1 = 195

2a = 195 - 1

2a = 194

a = 194/2

a = 97

a + 1 = 98

Check:

97 + 98 = 195

Find the magnitude of the following vector: v=15i + 8j​

Answers

[tex]\text{Given that,}\\\\\vec{v} = 15 \hat{i} +8 \hat j\\\\ \\\text{Magnitude of the vector,}\\\\|\vec v| = \sqrt{15^2 +8^2}= \sqrt{289} = 17[/tex]

Rosena bought an 8 pack of donuts. The donuts cost $28.00 all together. What is the unit rate for the donuts in dollars?

Answers

Answer:

$3.50

Step-by-step explanation:

I hope this helps!

Answer:

$3.50 per Donut

Step-by-step explanation:

Well if the total cost is $28.00 and there were eight donuts, then out equation would be 8 x ____=28

So, 28/8=3.5

CAN SOMEONE HELP ME PLEASE ASAP!?

Answers

Answer:

15

Step-by-step explanation:

7.5*2

Answer:

15 ft

Step-by-step explanation:

1 inch is 2 ft

remember 1 ft is 12 inches so,

1 inch is 24 inches

so 7.5 inch will be 24*7.5 = 180 inches

180 inch / 12 = 15 ft

solve pls brainliest

Answers

I'm just doing this for achievement sorry bro

Step-by-step explanation:

dud


What multiplication problem matches this addition problem?
6 + 6 + 6 + 6 + 6 + 6 + 6 = 42
Type the correct answer. k12 online school

Answers

6*7=42
It’s the answer I guess.
6^7=42

(6 to the 7th power equals 42)

if f (x)=x^2-x-1, then f(-5)=

Answers

[tex]\text{Given that,}\\\\f(x) = x^2-x -1\\\\f(-5) = (-5)^2 -(-5) -1 = 25 +5 -1 = 29[/tex]

Substitute -5 for x
f(-5) = -5^ 2 - (-5) - 1
= 25 + 5 - 1
=29
Hope this helps!

Factor 18r+12s. Write your answer as a product with a whole number greater than 1.

Answers

Answer:

6(3r + 2s)

Step-by-step explanation:

Find the gcf of 18 and 12, then divide both and put it inside the parentheses.

A scatterplot is used to display data for a runner where x is the number of miles run, and y is the time, in minutes, that it takes to run that distance. Which interpretation describes a line of best fit of y = 9. 5x for the data in the scatterplot? For each 1 minute, the runner ran 9. 5 miles. For each 9. 5 minutes, the runner ran 1 mile. The minimum distance with a recorded time is 9. 5 miles. The maximum distance with a recorded time is 9. 5 miles.

Answers

The interpretation that describes a line of best fit of y = 9.5x for the data in the scatterplot is (a) For each 1 minute, the runner ran 9.5 miles

The equation of the line of best fit is given as:

[tex]y = 9.5x[/tex]

The line of best fit is represented as:

[tex]y = mx + b[/tex]

Where m represents the rate or slope.

So, by comparison:

[tex]m = 9.5[/tex]

This means that, the number of miles travelled every minute is 9.5

Hence, the true statement is (a)

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-3(-3x-7)=48 please show work

Answers

Answer:

x = 3

Step-by-step explanation:

-3(-3x - 7) = 48=> 9x + 21 = 48=> 9x = 48 - 21=> 9x = 27=> x = 3

Conclusion:

Therefore, the answer is 'x = 3'.

Hoped this helped

[tex]BrainiacUser1357[/tex]

Answer:

−3(−3x−7)=48

Divide both sides by −3.

−3x−7=   48

​ Divide 48 by −3 to get −16.

−3x−7=−16

Add 7 to both sides.

−3x=−16+7

Add −16 and 7 to get −9.

−3x=−9

Divide both sides by −3.

x=  −3 −9

​ Divide −9 by −3 to get 3.

x=3

Step-by-step explanation:

help me please .
Ester purchased a used car, a Ford Focus, for $8400. The car is expected to decrease in value by 20% per year over the next couple of years.


At this rate, what can Ester expect the approximate value of the car to be after 6 years?


Question 6 options:


$1,409



$2,202



$4,200



$1,762

Answers

Answer:

$2,202

Step-by-step explanation:

If the car decreases in value 20% per year, that means that the car is only worth 80% of its value for the next year.

80% can be written as .80.

Multiply the value of the car by .80 6 times.

8400 multiplied by .80 = 6720

6720 multiplied by .80 = 5376

repeat this sequence 4 more times to come to an answer of 2,202


Juhi had $350 more than Trent. After Juhi spent 50% of her money
and Trent spent 70% of his money, Juhi had $255 more than Trent
How much did Trent have at first?

Answers

400
Correct me if im wrong*-*

A jacket costs $80. it is on sale for 35% off. what is the discount? ​

Answers

Answer:

$52

Step-by-step explanation:

35% off

100% - 35% = 65%

65/100 = 0.65 ( multiplier)

0.65 x 80 = 52

Answer:

$28

Step-by-step explanation:

35/100 = x/800

0.35 * 800 = $28

five million four thousand three hundred in standard form

Answers

Answer:

5,004,300

Step-by-step explanation:

The standard form of five million four thousand three hundred is 5,004,300.

Hoped this helped.

[tex]GeniusUser[/tex]

Answer:

Answer:

5,004,300

Step-by-step explanation:

The standard form of five million four thousand three hundred is 5,004,300.

Hoped this helped.

GeniusUserGeniusUser

Solve. 8 3/5=3/4x−5 1/2 Enter your answer as a mixed number in simplest form in the box.

Answers

The value of x in the expression is 18(24/30).

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

8(3/5) = (3/4)x - 5(1/2)

43/5 = 3x/4 - 11/2

43/5  + 11/2 = 3x/4

(86 + 55)/10 = 3x/4

141/10 = 3x/4

3x = 141 x 4 / 10

x = 564/30

x = 18(24/30)

Thus,

The value of x is 18(24/30).

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How many solutions are there for the system of equations shown on the graph?

No solution
One solution
Two solutions
Infinitely many solutions

Answers

Answer:

NO solution

Step-by-step explanation:

mark me brainliest pl

which is the next two equivalent fractions of 2/3 , 5/7

Answers

Answer:

[tex]\frac{2}{3}[/tex] X [tex]\frac{2}{2}[/tex] = [tex]\frac{4}{6}[/tex]

[tex]\frac{2}{3}[/tex] X [tex]\frac{3}{3}[/tex] = [tex]\frac{6}{9}[/tex]

Ans: [tex]\frac{2}{3}[/tex] => [tex]\frac{4}{6}[/tex] and [tex]\frac{6}{9}[/tex]

[tex]\frac{5}{7}[/tex] X [tex]\frac{2}{2}[/tex] = [tex]\frac{10}{14}[/tex]

[tex]\frac{5}{7}[/tex] X [tex]\frac{3}{3}[/tex] = [tex]\frac{15}{21}[/tex]

Ans: [tex]\frac{5}{7}[/tex] => [tex]\frac{10}{14}[/tex] and [tex]\frac{15}{21}[/tex]

Find a solution to the inequality x > 4.
A. 8
B. 3
C. 4
D. 0

Answers

Answer:

8

Step-by-step explanation:

Isn't it simple because all other numbers are less than 4?

57 yard . ×/1 yard =171 ft.

Answers

Answer:

the answer should be b good luck

Your friend has prepared his monthly budget and asks you if he has overlooked anything in this planning. Which of the following questions points out his most serious omission? A 2-column spreadsheet showing Cash Inflows and Cash Outflows. Cash inflows are Disposable income 4,165 dollars, interest on savings 0 dollars, income from stocks 50 dollars, with total cash inflow 4,215 dollars. Cash outflows are mortgage 1,000 dollars, homeowner's insurance 60 dollars, car payment 373 dollars, car insurance 125 dollars, stock purchases 200 dollars, life and health insurance 150 dollars, retirement plan 500 dollars, utilities 235 dollars, cable/phone 160 dollars, groceries 600 dollars, recreation 550 dollars, with total cash outflow 3,953 dollars. a. What if your income from stocks is lost? b. What if you need to go to the doctor? c. What if the electric bill increases? d. What if you need to replace the furnace? Please select the best answer from the choices provided A B C D

Answers

Answer:

Yes its D

Step-by-step explanation:

Correct on edg. 2021

The question that points out his most serious omission from the monthly budget preparation is d. What if you need to replace the furnace?

What is a monthly budget?

A monthly budget is an outline of the cash inflows and cash outflows from a person's or firm's account during a month's period.  It tracks cash inflows based on income and the outflows in expenses.

The preparation of a monthly budget helps in financial planning and control by tracking expenses and income.

Thus, the most relevant question that deals with a budget overlook is not about losing stock income, going to the doctor, increased electric bill but Option D.

Learn more about monthly budget preparation at https://brainly.com/question/1995710

A customer buys 6 packages of nails and 7 packages of screws for $74.35. What is the price of a package of screws?

Answers

The price of the package of screws would be = $40

How to calculate the package of screws bought by the customers?

The quantity of nails bought by the customer = 6 packages

The quantity of screw bought by the customer = 7 packages of screw.

The total amount of the whole package = $74.35

The total number of packages = 6+7 = 13

For screws = 7/13 × 74.35

= 520.45/13 = $40

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Hayar el patrón 7103425320;_________;7103676328;7103801823

Answers

Don’t understand this question your trying to ask

find three consecutive number whose sum shall equal 45

Answers

Answer:

14, 15, 16

Step-by-step explanation:

n + n+1  + n + 2 = 45

3n + 3 = 45

3n = 42

n = 14

14, 15, 16

A farmer plants wheat in a rectangular plot of land having a length of 7260 feet and a width of
1200 feet. If the farmer makes a profit of $30 per acre, how much profit should he expect to
make from the wheat planted, in dollars?

Answers

Answer:

  $6000

Step-by-step explanation:

There are 43560 square feet in an acre. The profit is expected to be ...

  (7260 ft)(1200 ft) × ($30)/(43560 ft²) = $6000

_____

The area of the plot is 200 acres.

Betty earned $159 by selling 75 Each bracelet was the same price about how much did each bracelet cost estimate the cost of each bracelet what compatible numbers did you use

Answers

Answer:

2$ compatible numbers are 200 and 100

Step-by-step explanation:

What is 5 14/12 in simplest form

Answers

Answer:

the answer is probably 7/6

hope I am correct and if not I'm sorry

Martin drank 2/3 liter of water Monday before going jogging.He drank 3/7 liter of water after his jog.How much water did Martin drank altogether?Write your answer as a mixed number.

Answers

First you need to make the denominators the same so 3 * 7 = 21 and the numerators are multiplied by the denominator of the other fraction so you get:
14/21 + 9/21 = 23/21 or 1 and 2/21 liters

How much material do you need to make two back pockets?

Answers

10 square inches to 16
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