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Natalka [10]
3 years ago
5

Answer correctly for brainliest pleaseeee!!

Mathematics
2 answers:
Schach [20]3 years ago
6 0
A (x,y) - (-x,y) is the answer
wolverine [178]3 years ago
3 0

Answer:

A. (x,y) → (-x,y)

Step-by-step explanation:

A: (-5,-1)
A': (5,1)
B: (-3, -3)
B': (3, -3)
C: (-5, -5)

C': (5, -5)
D: (-7, -3)

D': (7,-3)

The x values change sign but the y values don't.

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Violet contributes 12% of her $55,700 annual salary to her 401(k) plan. What is her pretax income?
NikAS [45]
You have that:

 - Her contribution from her salary <span>to her 401(k) plan, </span>is: 12%.
 - Her annual salary is: $55,700.

 Then, to solve this problem and calculate her pretax income, you must following the steps below:

 1. You must calculate the amount that Violet contributed to her 401(k) plan. So, you have:

 12%/100=0.12

 ($55,700x0.12)=$6,684 

 2. Now, you must subtract her annual pay ($55,700) by the amount obtained ($6,684), as below:

 Pretax income= $55,700-$6,684
<span> Pretax income=$49,016
</span><span>
 What is her pretax income?

 The answer is: Her pretax income is </span>$49,016
7 0
4 years ago
Read 2 more answers
A school bought 45 band uniforms and 18 musical instruments. If the
Oxana [17]

Answer:

45 times 89

Step-by-step explanation:

The instuments are irrelevant and are only there to distract you.

4 0
3 years ago
Read 2 more answers
Prove the identity cos(x-y)-cos(x+y)=2sinxsiny
tekilochka [14]

Answer:

see the procedure

Step-by-step explanation:

we know that

cos(X - Y) = cosX cosY + sinX sinY\\cos(X + Y) = cosX cosY - sinX sinY

so

cos(X - Y)-cos(X + Y)=cosX cosY + sinX sinY-(cosX cosY - sinX sinY)

cos(X - Y)-cos(X + Y)=cosX cosY + sinX sinY-cosX cosY + sinX sinY

cos(X - Y)-cos(X + Y)=sinX sinY+ sinX sinY

cos(X - Y)-cos(X + Y)=2sinX sinY ----> is verified

7 0
3 years ago
A doughnut shop has a fixed cost of $124
vladimir1956 [14]

Answer:

250-124=126/0.12=1050

answer is 1050 doghnut

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Which system of equations below has infinitely many solutions?
Zolol [24]

Answer:

The answer is B

Step-by-step explanation:

2x+2y =10 and y= -x +5

These are not in the same form so thats the first step

2x+2y=10

we minus 2x from both side which turns into

2y=-2x+10 (the variable always comes first)

Secon step is to divide 2 from the y to everything so 2y divided by 2 = y

-2 divided by 2 is -x and 2 divided by 10 is 5 and now you have the same equations which leads to infinite

y=-x+5

6 0
3 years ago
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