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Dmitrij [34]
3 years ago
6

X-2y+z=2 bx+ay=3 -2y+z=-4 Choose appropriate values for a and b

Mathematics
1 answer:
jonny [76]3 years ago
8 0

Answer:

Attached

Step-by-step explanation:

Just for your reference, this question will get unlimited number of solutions, attached is a few examples I calculated from Excel. Have fun to pick one or create one to be your favorite.

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What is the image point of (-9,6) after a translation left 4 units and down 4 units
muminat

Answer:( -13,2)

Step-by-step explanation:

4 0
3 years ago
Which step comes last when using the divide-center method to find the trend line on a scatterplot?
stepan [7]

Answer:

Connect the two centers to produce the trend line

Step-by-step explanation:

When the dots have been plotted, there are three steps to find the trend line on a scatter plot:

1.  Draw a vertical line that separates the full set of points into two sets, each with the same number of dots.

2.Mark with a special sign (e.g + or ×) the middle value in each of the two sets obtained in the previous step.

3.Join the two marks mentioned in the step (2) with a straight line, and extend it to the edges of the graph. This line is the trend line, and this is the last step.

Thus, the last step when using the divide-center method to find the line on scatter plot is Connect the two centers to produce the trend line.

6 0
3 years ago
Read 2 more answers
A restaurant records the number of tables served each night, and the results have the values: minimum = 3, lower
natulia [17]

Answer: A. The first one

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Enny White is shopping for CDs. She decides to purchase 3 movie soundtracks. The music store has 7 different movie soundtracks i
zubka84 [21]

Answer:

35\ ways

Step-by-step explanation:

we know that

<u><em>Combinations</em></u> are a way to calculate the total outcomes of an event where order of the outcomes does not matter.

To calculate combinations, we will use the formula

C(n,r)=\frac{n!}{r!(n-r)!}

where

n represents the total number of items

r represents the number of items being chosen at a time.

In this problem

n=7\\r=3

substitute

C(7,3)=\frac{7!}{3!(7-3)!}\\\\C(7,3)=\frac{7!}{3!(4)!}

simplify

C(7,3)=\frac{(7)(6)(5)4!}{3!(4)!}

C(7,3)=\frac{(7)(6)(5)}{3!}

C(7,3)=\frac{(7)(6)(5)}{(3)(2)(1)}

C(7,3)=35\ ways

6 0
4 years ago
Wesley makes spherical fish tanks with a diameter of 30. A customer requests a smaller tank with half the volume of the tank tha
grandymaker [24]

Answer:

23.8

Step-by-step explanation:

V = 4/3 π r³

V = 4/3 π (15)³

V = 4500 π

V = 4/3 π r³

4500 π / 2 = 4/3 π r³

1687.5 = r³

r ≈ 11.9

d ≈ 23.8

5 0
4 years ago
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