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Stolb23 [73]
2 years ago
5

System of equations!!!

Mathematics
1 answer:
ololo11 [35]2 years ago
5 0

Answer:

Step-by-step explanation:

1. x^2-x-20=3x-15

x=5, x=1 substitute

y=3*5-15 = 0

y=3*(-1)-15 = -18

Solution: (5,0) & (-1,-18)

2. x^2+2x+3=x+5

x=-2, x=1 substitute

y= -2+5 = 3

y=1+5 = 6

Solution: (-2,3) & (1,6)

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688×29=<br>how to do this step by stwp
laila [671]

688

x 29

  6192  

1376 x  

19952


So you start by taking 9 from 29 and multiplying it by 688. when you get the answer put it below the line. then multiply the 2 from the 29 and whne you get the answer put a zero on the end and then add the answer you got from 9x688  (6192) and 2x688 (13760) and then thats youre answer. hope it helps!

8 0
3 years ago
John is 48 years old. He is planning on retireing when he is 65. He has opened an IRA with an APR of 3.5% compounded daily. If h
alex41 [277]

The amount of money that John would have in his account when he is ready to retire is $6,351,400.21.

<h3>How much would be in the retirement account?</h3>

The formula that can be used to determine the future value of the annuity is

Future value = Daily deposit x annuity factor

Annuity factor = {[(1+r)^n] - 1} / r

Where:

  • r = 3.5 / 365 = 0.0096%
  • n = (65 - 48) x 365 = 6205

Annuity factor = [(1.000096^6205) - 1] / 0.000096 = $8468.53

Future value = 750 x $8468.53 = $6,351,400.21

To learn more about annuities, please check: brainly.com/question/24108530

#SPJ1

3 0
2 years ago
Mr. Hedde requires 60% to pass. If someone gets 160 points and falls short by 20
olganol [36]

Answer:

300 points

Step-by-step explanation:

160 + 20 = 180

180 would have been 60 percent

180/60 = 300

300 would have been needed to pass

Proven by:

300 * 60% = 180

180 - 20 = 160

7 0
3 years ago
What is the volume of the rectangular prism?
omeli [17]

Answer:

10 feet^3

Step-by-step explanation:

4 0
3 years ago
Please help!!!!!!! I will medal
Damm [24]
The answer to this question is \frac{123}{500}. Hope this helps.
6 0
3 years ago
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