contractor needs to pour a concrete floor in the shape of a rectangle. The figure shows the design for the concrete floor.
40 ft
30 ft
30 ft
40 ft
The contractor uses the converse of the Pythagorean theorem to prove that the floor is rectangular. How can he do this?
А
He can show that 30 + 40 equals the square of the length of each diagonal.
B
He can show that 40 - 30 equals the square of the length of each diagonal.
С
He can show that 302 + 402 equals the square of the length of each diagonal
D
He can show that 402-302 equals the square of the length of each diagonal​

Answers

Answer 1

Answer:

A

Step-by-step explanation:

I would go with A. If this is wrong I'm so so so sorry, Although this is still what I think is correct.


Related Questions

which number equals 9x100+9x10+0x1+0x 1/10+ 3x 1/100+7x1/1000

Answers

Answer:

990.037

don't ask.

Step-by-step explanation:

I need help take all my points I really need help .

Answers

Answer:

1. Median

2. 4.5

Step-by-step explanation:

There are 10 numbers so the median is 4 and 5 which makes the median 4.5.

HOPE THIS HELPS

PLZZ MARK BRAINLIEST

Answer:

1. Median

2. 4.5

Step-by-step explanation:

There are 10 numbers so the median is 4 and 5 which makes the median 4.5.

HOPE THIS HELPS

PLZZ MARK BRAINLIEST

Find the y-intercept of the following function:

[tex]2x - 4y = 9[/tex]

Answers

Hi there!

[tex]\large\boxed{0, -\frac{9}{4} }[/tex]

2x - 4y = 9

Begin by isolating the y variable by moving 2x to the right-hand side of the equation. (Subtract 2x from both sides):

2x - 2x - 4y = 9 - 2x

-4y = 9 - 2x

Further isolate by dividing both sides by -4:

-4y / (-4) = (9 - 2x) / (-4)

y = -9/4 - 2x/(-4)

Simplify further:

y = -9/4 + 1/2x

y = 1/2x - 9/4

The "b" value is the y-intercept, therefore:

x = 0 at y = -9/4

Answer:

[tex]\huge\boxed{(0, \frac{-9}{4} )}[/tex]

Step-by-step explanation:

2x - 4y = 9

To find the y-intercept, set the x value in the equation to 0.

Rewrite

2(0) - 4y = 9

Simplify

-4y = 9

Multiply both sides of the equation by -1

4y = 9

Divide both sides of the equation by 4

y = -9/4

y = -4.5

Now that we know the y intercept, we can find the coordinate.

(x, y)

Substitute

(0, [tex]\frac{-9}{4}[/tex])

Let me know if you have any questions!

Sketch the graph of y+2=1/2(x-3)

Answers

Answer:

Step-by-step explanation:

y= 1/2x + −7/2

THE LENGTH AND THE BREADTH OF A RECTANGULAR PARK ARE IN THE RATIO 5 : 2. IF ITS PERIMETER IS 168m, FIND ITS LENGTH AND BREADTH.


(STEP BY STEP PLZ) (HOPE U ENJOY IT)​

Answers

Answer:

Length = 60m, breadth = 24m

Step-by-step explanation:

Let the length of the park be 5x and the breadth 2x.

5x+5x+2x+2x = 168

14x = 168

x = 168 ÷ 14

x = 12

Length (5x) = 12 × 5

                   = 60

Breadth (2x) = 12 × 2

                    = 24

Answer:

Length = 60m, breadth = 24m

A new glove and ball are priced $29.99, but you have a coupon for 15% off. What is the price of the glove and ball with the coupon?



Round to the nearest hundredth (penny)

Answers

25.01 let me know if I’m right!

Cone radius of 15 mm and a volume of 5890.5 mm3.What is the height of this cone?Show work.PLSSS help...

Answers

Answer: h = 25.0000585 mm

I can't really show work on a computer because there are symbols involved

Step-by-step explanation:

The difference of twice a number and 9

Answers

Answer:

I belive that the answer is 8

Answer:

10 and 8 and 18,

Step-by-step explanation:

first of all 18 is half of 19, and 10 and 8 are between 9

A bathtub can hold 80 gallons of water. The faucet flows at a rate of 4 gallons per minute. What percentage of the tub will be filled after 6 minutes? *

Answers

The answer is 25 percent !

Guys plssssssss! I want to spend time today and tomorrow with my fam before they go back to Washington

Answers

Answer:

10) It increased by appoxamately 17%.

11) 255 decreased by 20%

12) 15 increased by [tex]66\frac{2}{3}[/tex]%

13) $9,450

14) $149.8

15) $238.5

Step-by-step explanation:

10) 170 is greater than 150 by 25. 25 is [tex]16\frac{2}{3}[/tex]% of 150, so it increased by appoxamately 17%.

11) 225 is decreased by 45. 45 is 20% of 100, so 255 decreased by 20%

12) 15 is increased by 10. 10 is [tex]66\frac{2}{3}[/tex] of 15, so 15 increased by [tex]66\frac{2}{3}[/tex]%

13) 5% of 9,000 is 450. 450 + 9,000 is $9,450

14) 7% of 140 is is 9.8. 140 + 9.8 = $149.8

15) 6% of 225 is 13.5. 225 + 13.5 = $238.5

Which of the following rational functions is graphed below?
10
-10
10
-10

Answers

Answer:

C) F(x)=1/(x-2)²

Step-by-step explanation:

I'm 100% sure. You can go with it

The solution is Option C.

The value of the equation is f ( x ) = 1/ ( x - 2 )²

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Let the function be f ( x ) = A

Now , Vertical asymptote (VA) - It is a vertical line and hence its equation is of the form x = k. Vertical asymptotes are defined when the denominator of a rational function tends to zero

So , the function which represents the graph will be

f ( x ) = 1 / ( x - 2 )²   be equation (1)

And , the graph of the function is given below

Hence , the equation is f ( x ) = 1 / ( x - 2 )²

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ2

Write each percent as a decimal. 1.) 22% 2.) 75% 3.) 6% 4.) 189%

Answers

Answer:

xztghdrtjgxzdrf

Step-by-step explanation:

1) .22 2) .75 3) .06 4) 1.89

five more than 3 times a number

Answers

Answer:

3x+5

Step-by-step explanation:

Let number =X

So

Five more than 3 times a number

3x+5

it is 3x+5 ! hope this helps love have a great day

do I have enough money to purchase air pods that cost $200 if I have a 20% off coupon but I have to pay 6% tax.

Answers

$172.00

^ That is how much you would pay for the Airpods

The temperature at 6:00 p.m was 24 f. at midnight the temperature was 36 f. lower than 6:00 pm . what was the temperature at midnight?

Answers

Answer:

-12 f. is the answer tyour welcome


Factor Completely

5x^2 + 15x - 140
•prime
•5(x - 4) (x + 7). •5(x-7)(x + 4)
•5(x - 14) (x + 2)

Answers

Answer:

5(x + 7)(x - 4).

Step-by-step explanation:

5x^2 + 15x - 140

= 5(x^2 + 3x - 28)

= 5(x + 7)(x - 4).

To make an international call, there is a flat fee of $3.15 plus $0.05 for every minute that you talk. If you were charged $5.10 for making an international call, for how many minutes did you talk?

Answers

Answer:

39 minutes

Step-by-step explanation:

I used a calculator

Answer:

39 minutes

Step-by-step explanation:

a = 0.05m + 3.15 where a=the total charged, m=the amount of minutes

5.10 = 0.05m + 3.15

1.95 = 0.05m

1.95/0.05 = m

m = 39 minutes

What is the least common denominator of the equation
2/9 * x + 2/3 * x = 7?

3
9
27
63

Answers

Answer:

9 is the least common denominator for the given equation

3x3=9

Answer:

Denominator = 9

[tex] x = 7 \frac{7}{8} [/tex]

Step-by-step explanation:

[tex] \frac{2}{9} x + \frac{2}{3} x = 7 \\ \\ \frac{2}{9} x + \frac{2 \times 3}{3 \times 3} x = 7 \\ \\ \frac{2}{9} x + \frac{6}{9} x = 7 \\ \\ \frac{2 + 6}{9} x = 7 \\ \\ \frac{8}{9} x = 7 \\ \\ x = 7 \times \frac{9}{8} \\ \\ x = \frac{63}{8} \\ \\ x = 7 \frac{7}{8} [/tex]

If f(x)=3x2−4x+6 find f(−3)

Answers

Answer:

45

Step-by-step explanation:

Replace everything in the equation that has a x to -3:

f(-3)=3(-3)^2-4(-3)+6

Square the -3:

f(-3)=3(9)-4(-3)+6

Multiply/Distribute

f(-3)=27+12+6

Add:

f(-3)=45

Hope this helps!

Answer:

f(x) = 45

Step-by-step explanation:

f (x) = 3x^2 − 4x + 6 find f (−3)

Replace the variable x with −3 in the expression.

f (−3) = 3(−3)^2 − 4 ⋅ −3 + 6

Simplify 3(−3)^2 − 4 ⋅ −3 + 6

Remove parentheses.

3(−3)^2 − 4 ⋅ −3 + 6

Raise −3 to the power of 2.

3 ⋅ 9 − 4 ⋅ −3 + 6

Multiply 3 by 9.

27 − 4 ⋅ −3 + 6

Multiply −4 by −3.

27 + 12 + 6

Simplify by adding numbers.

Add 27 and 12.

39 + 6

Add 39 and 6.

45

Tebor weighed 84 kg. he went running everyday and began to lose mass. after one month his mass was 78 kg. what was the percentage decrease?

Answers

Answer:

7.1%

Step-by-step explanation:

Given parameters:

Weight of Tebor  = 84kg

Weight of Tebor after losing weight = 78kg

Unknown:

Percentage decrease  =  ?

Solution:

To find the percentage decrease, determine the difference between his initial and final weight;

    Weight difference  = 84kg - 78kg  = 6kg

Percentage decrease  = [tex]\frac{6}{84}[/tex] x 100 = 7.1%

Step-by-step explanation:

Given

Weight of Tebor  = 84kg

Weight of Tebor after losing weight = 78kg

To find

Percentage decrease  = ¿¿??

Solution:

To find the percentage decrease,

determine the difference between his initial and final weight;

    Weight difference  = 84kg - 78kg  = 6kg

Percentage decrease  =

[tex]\rightsquigarrow[/tex] [tex]\pink{\dfrac{6}{84}×100=7.1\%}[/tex]

Which sequence of transformations will map figure H onto figure H′?Two congruent hexagons are shown on a coordinate plane; hexagon H quadrant one with vertices at 2 comma 2, 2 comma 6, 6 comma 7, 8 comma 6, 8 comma 2, and 6 comma 1; hexagon H prime with vertices at 2 comma negative 8, 2 comma negative 4, 4 comma negative 3, 8 comma negative 4, 8 comma negative 8, and 4 comma negative 9. Rotation of 180° about the origin, translation of (x + 10, y − 2), and reflection across x = −6 Rotation of 180° about the origin, translation of (x + 10, y − 2), and reflection across y = −6 Rotation of 180° about the origin, translation of (x − 10, y + 2), and reflection across y = −6 Rotation of 180° about the origin, translation of (x − 10, y + 2), and reflection across x = −6

Answers

Answer:

Rotation of 180° about the origin, translation of (x + 10, y − 2), and reflection across y = −6

Step-by-step explanation:

The sequence of transformations that will map figure H onto figure H' is the rotation of 180° about the origin, translation of (x + 10, y − 2), and reflection across y = −6.

Given :

Points of Hexagon H  --  (2,2), (2,6), (6,7), (8,6), (8,2), (6,1)

Points of Hexagon H' --  (2,-8), (2,-4), (4,-3), (8,-4), (8,-8), (4,-9)

The following steps can be used to transform the hexagon H into hexagon H':

Step 1 - Translate the hexagon in the positive x-axis direction by a factor of 10.

Step 2 - Translate the graph obtained in the above step by factor 2 in the downward direction.

Step 3 - Now, rotate the graph obtained in the above step 180 degrees about the origin.

Step 4 - Then take the reflection of the graph obtained in the above step about y = -6. The resulting graph shows the graph of Hexagon H'.

Therefore, the correct option is B).

For more information, refer to the link given below:

https://brainly.com/question/17267403

(100)+ (-55) + (-90)​

Answers

Answer:

-45

Step-by-step explanation:

Start by subtracting 100-55 (The reason you subtract is because a positive plus a negative can also be subtracting)

Next  Add that answer (45) to -90

Finally you get -45

Use the elimination method to solve the system of equations. Choose the correct ordered pair.
4x + 7y = 60
-4x + 7y = -4

Answers

Answer:

(8,4)

Step-by-step explanation:

ape x

Which expression is equivalent to 28 + 64?

2(14 + 40)

2(14 + 40)

4(7 + 16)

4(7 + 16)

4(24 + 32)

4(24 + 32)

8(20 + 56)

8(20 + 56)

Answers

Answer:

4(7 + 16)

Every other answers does not equal 92

28+64=92

4(7+16)

7+16=23

23x4=92

Help me to solve this please . Michael leaves school at 2:45 P.M. What type of angle is formed by the hour and minute hands at that time ​

Answers

Answer:

This would be an obtuse angle

Answer:

120°

Step-by-step explanation:

if AC=3, BC=5, and AB=7, find AD:
11 2/3
2 5/8
4 3/8
4 1/5

Answers

Answer:

[tex]2\frac{5}{8}[/tex]

Step-by-step explanation:

It's true

Jennie has $300 and she spends $15. What percent of her money is spent?

Answers

Answer:

5%

Step-by-step explanation:

15/300 can be simplified to 1/20

1/20 or 0.05 as a percentage (x100) is 5%

$15 out of $300 is 5%

-3/5 and -5/8 as decimals​

Answers

Answer:

-3/5 = -0.6

-5/8 = -0.625

Step-by-step explanation:

I most definitely did not use a calculator.

9 is 3% of what number? Which proportion matches this information?

Answers

Answer:

B

Step-by-step explanation:

3% = 3/100

So we can eliminate the first answer.

The proportions have to match each other so the number nine should be above and thus the x has only the option of being under it.

As a result, we eliminate the third answer and remain with one reasonable answer

For moving object the force acting on the object varies directly with the object acceleration when a force of 36 in acts on a certain object the acceleration of the object is 6 m/s squared if the force is changed to 24 in what will be the acceleration of the object

Answers

Answer:

4m/s²

Step-by-step explanation:

Given that:

Force F is directly proportional to acceleration a

F α a

F = ka

Where k is the constant of proportionality

36 = 6k

Solve for K

36 = 6k

k = 36/6

k = 6

If force = 24 ; acceleration =

24 = ka

k = 6

24 = 6a

a = 24/6

a = 4m/s²

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