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3 years ago

What set of reflections would carry rectangle ABCD onto itself?

1 answer:

5 0

We are given a quadrilateral in the Cartesian coordinates whose vertex have the following coordinates:
A (-5,1)
B (-5,3)
C (-1,3)
D (-1,1)

For a set of reflection to result in the same image location and size, the image must be rotated 360 degrees. Among the choices, the only answer is
<span>y-axis, x-axis, y-axis, x-axis</span>

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What Is The Answer????

olchik [2.2K]

Answer:

x + 3

Step-by-step explanation:

It cuts the y axis at 3 and continues to rise by one

Therefore ax + b gives us 1x + 3 = x + 3

4 0

2 years ago

in a small machine shop, eight 5-gallon drums of oil are on hand. if 2 gallons are used each day and the owner wants a 30-day su

zavuch27 [327]

If 2 gallons of oil are used a day, than he will need 60 gallons of oil, because 30x2=60. For 60 gallons of oil, you would have to have 12 drums because 60÷5=12. Because there is already 8 drums of oil, there would already be 40 gallons because 8x5=40. If the owner already had 40 gallons of oil, they would only have to get 20 more gallons because 60-40=20. That would be 4 drums because 20÷5=4. The owner would have to order 4 more drums of oil.

4 0

2 years ago

A chemical company makes two brands of antifreeze. The first brand is 20% pure antifreeze, and the second brand is 70% pure anti

andre [41]

Answer:

First brand of antifreeze: 21 gallons

Second brand of antifreeze: 9 gallons

Step-by-step explanation:

Let's call A the amount of first brand of antifreeze. 20% pure antifreeze

Let's call B the amount of second brand of antifreeze. 70% pure antifreeze

The resulting mixture should have 35% pure antifreeze, and 30 gallons.

Then we know that the total amount of mixture will be:

$A + B = 30$

Then the total amount of pure antifreeze in the mixture will be:

$0.2A + 0.7B = 0.35 * 30$

$0.2A + 0.7B = 10.5$

Then we have two equations and two unknowns so we solve the system of equations. Multiply the first equation by -0.7 and add it to the second equation:

$-0.7A -0.7B = -0.7*30$

$-0.7A -0.7B = -21$

$0.2A + 0.7B = 10.5$

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

$-0.5A = -10.5$

$A = \frac{-10.5}{-0.5}$

$A = 21\ gallons$

We substitute the value of A into one of the two equations and solve for B.

$21 + B = 30$

$B = 9\ gallons$

3 0

2 years ago

Divide, B 800 100 88

Leona [35]

104 fluid ounces are in 4 jars.

6 0

2 years ago

Use number properties to simplify the following expression. -5 + (5 + 3)

bija089 [108]

Number Properties: PEMDAS

Parentheses, Exponents, Multiplication, Division, Addition, & Subtraction

$- 5 + (5 + 3)$

1. Parentheses
$- 5 + (7) \\$
There Are No Exponents, Multiplication, Division, Or Addition

2. Subtraction
$2$

7 0

2 years ago