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777dan777 [17]
4 years ago
13

Answer #3 for 30 points FAST

Mathematics
2 answers:
meriva4 years ago
6 0

Answer:

first answer is (3, -8); second answer is (3, -5)

Step-by-step explanation:

Verizon [17]4 years ago
3 0
For substitution: -2x -2y = 10 y = 4x - 20
6x + 8y = -22 y = -5 (for both plug in the second equation as y in the first equation if that makes sense) (first answer is (3, -8); second answer is (3, -5)

for elimination: 3x + 4y = 2.5 5x - 4y = 25.5 (adding will get you to 8x = 28 bc it gives you 0y; answer is (7/2, -2))
3x + 4y = 2.84 3x - y = 1.79 (gives you 3y = 1.05 if you subtract; answer is (0.48, 0.35))
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Do these side lengths make a right triangle? 5, 12, 13
lorasvet [3.4K]

Answer:

This is a right triangle

Step-by-step explanation:

We will use the Pythagorean theorem

a^2 + b^2 = c^2

If this is true it is a right triangle

5^2 + 12^2 = 13^2

25+144 = 169

169 =169

This is true so this is a right triangle

5 0
3 years ago
Simplify c + 6 < -20
Stels [109]

Answer:

Step-by-step explanation:

c + 6 < -20

Subtract 6 from both side

c +6 -6 < -20-6

c < -26

So value of c should be less than -26. Value of c = { - ∞ ...... -28, - 27 }

Eg:

If c = -27

-27 + 6 = - 21 . -21 is less than -20

7 0
4 years ago
Help !!!!!!!!!!!!!!!!!!!!!!!!
IRINA_888 [86]

Answer:

NO they don't form a triangle.

Step-by-step explanation:

Because they don't make a 90 degree angle.

7 0
3 years ago
Read 2 more answers
On Monday, allie’s bank account balance was -$24. On Tuesday, her account balance was less than it was on Monday. Use absolute v
Colt1911 [192]

Answer:

on Tuesday, her account balance being less than -$24 means her debt will be bigger than $24 dollars.

Step-by-step explanation:

  • On Monday, allie's bank account balance was -$24.
  • Balance being negative means he is carrying a debt of $24.
  • Of course it must have happened when she must not have enough money in his bank account to meet expenses and transactions.

On Tuesday, Allie's balance account was less than it was on Monday. It means

  • Her bank account < -$24
  • So, she must be carrying a debit bigger than $24.

Therefore, on Tuesday, her account balance being less than -$24 means her debt will be bigger than $24 dollars.

Keywords: account balance, absolute value

Learn more about account balance and absolute value from brainly.com/question/10765808

#learnwithBrainly

3 0
3 years ago
1.0<br> Im in need for help..
Rom4ik [11]

Answer:

$3200

Step-by-step explanation:

i had the answer but wanted to make sure

when added up everything equals 273,900

                                                                -700

                                                                --------

                                                           273,200

his networth is 270,000 that means when you subtract it from the 273,200 you are left with 3,200

3 0
3 years ago
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