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3 years ago

5

Which equation shows a true proportion

1 answer:

Oduvanchick [21]3 years ago

8 0

Answer: the first equation is the answer.

Step-by-step explanation: As you can see the first equation is 5/7=15/21. The are proportional because 5*3=15 and 7*3=21. If they are multiplied or divided by the same number, then they are proportional. It does not work with adding, subtracting or flipping.

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PLEASEA ANSWERR NEED HELP ASAP

Eduardwww [97]

If you compare it to the parent function x^(1/3):

g(x) is just shifted 4 down and 2 to the right.

Therefore:

h = 2
k = -4

4 0

4 years ago

Steven and his family ordered a meal that cost $136.50. Steven paid 14% sales tax and left a 20% tip on $136.50. What was the to

Svet_ta [14]

Answer:

$182.91

Step-by-step explanation:

136.50 times 0.14 (14%) is 19.11

136.50 times 0.2 (20%) is 27.30

13650+19.11+27.30=182.91

7 0

3 years ago

What expression is equivalent (2 ½ x 2 ¾)²

Alborosie

2.5x2.75
= 6.875
6.875^2=47.27

3 0

4 years ago

Line j and k are parllel lines that have been translated. The resulting imagine are show as j’and k’. How can you describe j’and

Taya2010 [7]

Answer:

j' and k' are also parallel to each other.

Step-by-step explanation:

After translation, the property of lines j and k remains.

i.e the lines continue to be parallel to each other.

7 0

4 years ago

Start with Chanel’s sequence. How does a 90-degree counterclockwise rotation about the origin change the coordinates of a shape?

zmey [24]

When a shape is rotated, it must be rotated through a point.

<em>90 degrees counterclockwise rotation negates the y-coordinates, and then swap the x and y-coordinates</em>
<em>Chanel is incorrect</em>

The rule of 90 degrees counterclockwise is:

$(x,y) \to (-y,x)$

This means that:

<em>The y-coordinate is negated</em>
<em>Then the y and x coordinates are swapped</em>

<em />

However, Charlies transformation is incorrect.

This is so because, the shape was not rotated, but instead it was reflected across the x-axis.
Then, the shape was dilated

Using points L and Q

$L=(1,1)$

When L is reflected across the x-axis.

The rule is:

$(x, y) \to (x, -y)$

So, we have:

$(1, 1) \to (1, -1)$

Next, it is dilated by 2.

The rule of this is:

$(x,y) \to k(x,y)$

So, we have:

$(1,1) \to2 \times (1,-1)$

$(1,1) \to (2,-2)$

From the diagram, the coordinate of Q is:

$Q = (2,-2)$

Same as the calculated point

Hence, Chanel is incorrect

Read more about transformation at:

brainly.com/question/11709244

8 0

2 years ago

Read 2 more answers