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harina [27]
3 years ago
7

Find 2 a for a = 3 1/4 1) 6 1/2 2) 6 1/4 3) 23 1/4 4) 5 1/2

Mathematics
1 answer:
Nataly_w [17]3 years ago
4 0

Answer:

  1)  6 1/2

Step-by-step explanation:

Put 3 1/4 where "a" is and do the arithmetic.

  2(3 1/4) = 2·3 + 2·(1/4) = 6 2/4 = 6 1/2

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Does this set of ordered pairs represent a function? Why or why not?
belka [17]

Answer:

A

Step-by-step explanation:

Recall that for a function to be valid, each input value of x must give us one and only one unique output  value for y.

in this case we can see that one of the data sets is (3,-1)

which means that an input of 3 gave an output of -1

but we also see that another data set (3,1)

in this case an input of 3 gave an output of 1.

Because the same x input gives 2 different y outputs, this is not a function.

the answer is A

3 0
3 years ago
Draw the line of reflection that reflects quadrilateral ABCD onto quadrilateral A'B'C'D
lions [1.4K]

Answer:

here ya go

Step-by-step explanation:

5 0
2 years ago
Which of the following is the best approximation of the volume of a sphere with a 9 cm radius?
LenaWriter [7]
Volume = 4/3 * PI * r^3
Volume = 4/3 * 3.14159 * 9^3
Volume = <span> <span> <span> 4.18879 * 729
</span></span></span>Volume = <span> <span> <span> 3,053.62 cubic centimeters

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5 0
3 years ago
Someone please solve this. If m(x)= x^3 - 5x + 7 &amp; f(x)= 2x - 3 What does: m(-3) - f(-3)
timofeeve [1]

Answer:

-2

step by step

(-3)^3-5(-3)+7-((2(-3)-3))

-27+15+7-(-6-3)

-27+15+7-(-3)

-27+15+7+3

-27+25

=-2

8 0
2 years ago
Need help with this!!!!!!!!
zzz [600]
The linear combination method is the same as the elimination method.  Let's multiply the second equation by -2 so the x terms cancel each other out. When we do that we get a system of 2x-3y=13 and -2x-4y=8.  The x-terms cancel each other out giving us -7y=21 and y = -3.  Now sub -3 into one of the equations to solve for x.  x+2(-3)=-4, and x - 6 = -4.  x = 2.  So the solution for our system is (2, -3)
4 0
3 years ago
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