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kykrilka [37]
3 years ago
5

-9/14 + 2/7 4 + (- 1 2/3) 15/4 + (-4 1/3)

Mathematics
2 answers:
vladimir2022 [97]3 years ago
4 0

Answer:

it is b

Step-by-step explanation:

u welcome if im correct

OLEGan [10]3 years ago
4 0

Answer:

1= -5/14

2= 2 1/3

3= -7/12

Step-by-step explanation:

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Evaluate the expression
dsp73

Answer: Heyaa!

<em>Your Answer Is...</em><em> </em>2

Step-by-step explanation:

<em>Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.</em>

<em />

Hopefully this helps <em>you!</em>

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<u>- Matthew ~</u>

7 0
2 years ago
Simplify the expression 7C4
Nady [450]
To simplify 7C4 we use the combination formula given by:
nCr=n!/[(n-r)!r!]
thus:
In our case we shall have:
n=7 and r=4
7C4
=7!/[(7-4)!4!]
=5040/[6×24]
=5040/144
=35

The answer is 35

6 0
3 years ago
Based on the graph, what is the dependent variable, the equation relating the two variables, and how far will the dragonfly trav
ivann1987 [24]

Answer:

<h2>The dependent variable is distance, the equation is y = 20x, and the dragonfly will travel 480 miles.</h2>

Step-by-step explanation:

According to the graph, the dependent variable is Distance in miles, because it's on the vertical axis. Additionally, the independent variable is time in hours, because it's on the horizontal axis. However, you always put time as independent, because nothing affects time.

To find the equation, we just need to find the slope, using two points (0,0) and (2,40).

m=\frac{y_{2} -y_{1} }{x_{2} -x_{1} }=\frac{40-0}{2-0}=20

Therefore, the equation is y=20x, which shows a direct proportion between variables.

Now, in 24 hours, it would travel

y=20(24)=480

It would travel 480 miles.

Therefore, the right answer is the second choice.

8 0
3 years ago
Read 2 more answers
Which choice shows the image of triangle QRS after the reflection over the x-axis followed by a rotation of 180° around the orig
Alex777 [14]

Answer:

A

Step-by-step explanation:

We see that triangle QRS is located in Quadrant III. (See attachment for labelling of quadrants)

Reflecting it over the x-axis means that we flip it over the x-axis, or we flip it vertically. Doing so, QRS will end up in Quadrant II.

Now, we need to rotate QRS 180 degrees about the origin. The quadrants are all 90 degrees away from each other, which means that if we rotate QRS about the origin 180 degrees, we'll end up two quadrants away from Quadrant II: we'll end in Quadrant IV.

Look at each of the answer choices. The only choice that features Q'R'S' (the image of QRS) in the fourth quadrant is the first choice, or A. So that's the answer.

<em>~ an aesthetics lover</em>

3 0
3 years ago
Someone plz help!! Also plz explain how you got that answer so I can do the rest!
zlopas [31]
What is the question you are trying to answer? The question got cut off?
8 0
3 years ago
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