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Paul [167]
2 years ago
14

Simplify: 1y- 2x - 3y + 4x

Mathematics
1 answer:
dangina [55]2 years ago
4 0

Answer:

2x - 2y

Step-by-step explanation:

Multiply by 1

combine like terms

Combine the second

rearrange terms

Then you should come up with the sloution 2x - 2y

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What is the sum of the geometric series in which A1 = 4, r = 3, and An = 324?
koban [17]
The answer would be 328
3 0
3 years ago
Three times a number plus 12 minus 5 times the same number is 22. What is the number?​
Ilia_Sergeevich [38]

Answer:3

Explanation: 3x5=15+12=27-5=22

5 0
3 years ago
An object is launched upward at 64 ft/sec from a platform that is 80 feet high. What is the objects maximum height if the equati
Free_Kalibri [48]
Max height is the vertex
convert to vertex form (y=a(x-h)^2+k) by completeing the square

h(t)=-16(t²-4t)+80
h(t)=-16(t²-4t+4-4)+80
h(t)=-16((t-2)²-4)+80
h(t)=-16(t-2)²+64+80
h(t)=-16(t-2)²+144

vertex is (2,144)
at t=2, the height is 144

max height is 144ft
4 0
3 years ago
Use the simple interest formula, I = prt, to find the simple interest:
Mkey [24]
4,000×0.035×2=280
.................
5 0
3 years ago
Sofia invests her money in an account paying 7% interest compounded semiannually. What is the effective annual yield on this acc
vfiekz [6]

Answer:

7.12

Step-by-step explanation:

The formula for the effective annual yield is given as:

i = ( 1 + r/m)^m - 1

Where

i = Effective Annual yield

r = interest rate = 7% = 0.07

m= compounding frequency = semi annually = 2

i = ( 1 + 0.07/2)² - 1

i = (1 + 0.035)² - 1

= 1.035² - 1

= 1.071225 - 1

= 0.071225

Converting to percentage

0.071225 × 100

= 7.1225%

Approximately to 2 decimal places = 7.12

Therefore, the annual effective yield = 7.12

4 0
3 years ago
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