If ΔABC ≅ ΔEDF where the coordinates of A(−1, 1), B(2, 4), and C(3, 1), what is the measure of EF?

3
3.2
4
4.6

Answer:

y=-3x+3

Step-by-step explanation:

The equation you want to use is y=mx+b. First you want to find m, the slope, but since the slope of 3 is given in all of the answers, you just want to determine if the line is negative or positive. This line is going negative because it approaches the x axis, and crosses it in the negative direction. Now we know the slope is -3x all that's left to do is to find the y intercept represented in the equation y=mx+b as +b. The point where the line crosses the y axis is positive 3, so the final equation is y=-3x+3.

Answer:

x = 2/3

Step-by-step explanation:

Lets solve your equation step-by-step.

x−10=−2(x+4)

Step 1: Simplify both sides of the equation.

x−10=−2(x+4)

x+−10=(−2)(x)+(−2)(4)(Distribute)

x+−10=−2x+−8

x−10=−2x−8

Step 2: Add 2x to both sides.

x−10+2x=−2x−8+2x

3x−10=−8

Step 3: Add 10 to both sides.

3x−10+10=−8+10

3x=2

Step 4: Divide both sides by 3.

3x / 3 = 2/3

x=2/3

Answer:

i'm pretty sure s the second one. that answer just makes the most sense to me

Step-by-step explanation:

Answer:

answer: A

Step-by-step explanation:

-100 -100, rotated by 180 would be the opposite, 100 100

Answer:

A

Step-by-step explanation:

Answer:

39.71

Step-by-step explanation

1 x 36.1 = 36.1, 3.61 + 36.1 = 39.71.

36.1 times 1.1 = 39.71

hope this helps!! <3

Answer:

2/10 of an hour for 1 mile

Step-by-step explanation:

1/2 for 1/10 since its half all you have to do is multiply by 2 then you got 2/2 and 2/10

Hope this helped!

Answer:

d=117.33 m

Step-by-step explanation:

Initial velocity of planes, u = 0 (because they are at rest)

Acceleration, a = 3.3 m/s²

Final take off speed, v = 88 m/s

We need to find the minimum allowed length for the runway. Let it is d. d will be the distance. It can be calculated using third equation of motion as follows :

[tex]v^2-u^2=2ad\\\\d=\dfrac{v^2-u^2}{2a}[/tex]

Putting all the values, we get :

[tex]d=\dfrac{88^2-0^2}{2\times 33}\\\\d=117.34\ m[/tex]

Hence, the minimum allowed length for the runway is 117.33 m.

Answer:

1. B) 2. D)

Step-by-step explanation:

Yuh

Answer:

A. 7

Step-by-step explanation:

5^2+5^2=c62

25+25=c^2

50=c^2

7=c

Answer:

A

Step-by-step explanation:

c=√a²+b²=√5²+5²≈7.07107

Answer:

$25

Step-by-step explanation:

divide 200 by 8 to get the unit rate, or what a single waffle maker costs.

Answer:

Each waffle maker is $25.

Step-by-step explanation:

First set up an equation here mine would be:

200=8c (c being cost)

Next get c alone, so divide each side by 8. That gives you:

c=200/8

Simplify.

c=25

So the cost of each waffle maker is $25.

Answer: The slide will have a height of 6 feet.

Step-by-step explanation:

Given: A slide has a width of 3.5 inches and height of 3 inches.

For required slide , width = 7 feet]

To keep the slide proportional to the model,

[tex]\dfrac{\text{height of the required slide}}{\text{height of the slide }}=\dfrac{\text{width of required slide}}{\text{width of slide}}[/tex]

[tex]\Rightarrow\ \dfrac{\text{height of the required slide}}{3}=\dfrac{7}{3.5}\\\\\Rightarrow\ \dfrac{\text{height of the required slide}}{3}=2\\\\\Rightarrow\ \text{height of the required slide}=3\times2 =6\ \text{feet}[/tex]

hence, the slide will have a height of 6 feet.

Answer:

The slide will have a height of 6  feet.

Step-by-step explanation:

i got it right

Answer:

59,280

Step-by-step explanation:

$1750x12months=$21,000 base sal.

478,500x.08=38,280 commiss.

21,000+38,280=59280

The math operator's symbol has predetermined rules that must be applied to the supplied operands or numbers.

Ming earn, including commission, last year exists 59280.

Calculating a value using operands and a math operator is referred to as performing a mathematical "operation." The math operator's symbol has predetermined rules that must be applied to the supplied operands or numbers. In mathematics, addition, subtraction, multiplication, division, and modular forms are the five basic operations.

Calculations in mathematics are done using arithmetic operators. A property or variable can be given a value using assignment operators. Text, dates, systems, times, and numeric assignment operators are all possible.

Given: Her annual sales commission is 8% of her base monthly salary, which is $1,750. Ming made $478,500 in travel sales last year.

From the given information, we get

$21,000 base salary = $1750 × 12 months.

478,500 × 0.08 = 38,280 commissions.

simplifying the above equation, we get

21,000 + 38,280 = 59280

Therefore, Ming earn, including commission, last year exists 59280.

To learn more about commission refer to:

brainly.com/question/957886

#SPJ2

Answer:

x = -1

Step-by-step explanation:

9(x + 2) = 5 - 2(x - 1)

9x + 18 = 5 -2x + 2

9x + 18 = -2x + 7

Add 2x and 9x. Subtract 18 from 7.

11x = -11

x = -1

Please mark me the brainliest!?!

Answer:

r=-36

Step-by-step explanation:

Answer:1. 40 hours  2).7.3 hours, 3).$480 4).$611.4

Step-by-step explanation:

STEP 1

stating all requirements

regular hour = 40 hours  at $12  an hour

overtime = beyond  40 hours at $18 an hour

Step 2--- Solving out

1. Steve worked 40 regular time hours

2. Over time hours =Total 47.3 hours - 40 regular time hours = 7.3 hours

3. Regular time pay = Regular tmes hours x regular time pay rate

= 40 x $12 =$480

4) Steve gross pay = Regular time pay + overtime pay

                              = $480 + ( 7.3 hours x $18)

                              =$480+$131.4

                              =$611.4

Answer: 66

Step-by-step explanation:see attachment.

If this helps you please rate brainest

Answer:

true

Step-by-step explanation:

Answer:

Step-by-step explanation:

the answear is true because it is strait line and also it equales (y=x+2)

Answer: The answer is A.addition property of equality

Hope I helped

Pkease mark me as brainliest!

Answer:

17

Step-by-step explanation:

an=a1+(n-1)d

a22=-25+21(2)

a22=17

Answer:

Hello

a=-25

d=2

a22=a+(n-1)d

     =-25+(22-1)2

     =-25+(21)2

     =-25+42

     =17

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Answer:

$35

Step-by-step explanation:

Let x represent the price of Douglas fir trees and y represent the noble fir trees

11x + 9y= 1006........equation 1

14x + 9y= 1111.........equation 2

Multiply equation 1 by 14 and equation 2 by 11

154x + 126y= 14,084

-

154x + 99 y= 12,221

27y= 1863

Divide both sides by the coefficient of y which is 27

27y/27 = 1863/27

y= 69

Substitute 69 for y in equation 1

11x + 9y= 1006

11x + 9(69) = 1006

11x + 621= 1006

11x = 1006 -621

11x = 385

x = 385/11

x = 35

Hence the Douglas fir free costs $35

Answer:

it averages about 8AM to 11Am so 3 hours

Step-by-step explanation:

Answer:

An example of a balance that has a greater integer value than a balance of -$12, but represents a debt of less than $5 is any integer belongs to [-6,-11]

Step-by-step explanation:

Let x be the balance that has a greater integer value than a balance of -$12, but represents a debt of less than $5.

We are given that a balance that has a greater integer value than a balance of -$12

So, x>-12

We are given that balance represents a debt of less than $5.

Debt = -5

So, x< -5

So, -5>x>-12

So, x∈[-6,-11]

Hence an example of a balance that has a greater integer value than a balance of -$12, but represents a debt of less than $5 is any integer belongs to [-6,-11]

Answer:

Line graphs.

Step-by-step explanation:

If you have two sets of data, the easiest graph to use would be a line graph. You can insert information and tell which line represents each category. Line graphs are also specifically used to compare data that changes over time.

I hope this helped you out!! Have a nice day :3

Answer:

line graphs

Step-by-step explanation:

i got 100

Answer:

b

Step-by-step explanation:

Answer:

[tex]{\huge{\pink{\underline{\underline{Solution}}}}}[/tex]

41=5x+17-3x

41=5x-3x+17

41=2x+17

41-21=2x

2x=20

[tex]x= \frac{20}{2} [/tex]

Hence,value of x=10

Hope it will help you ☺☺✌✌