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VladimirAG [237]
3 years ago
12

2x-y-3z=7, 3x+y+=10, 5x+y+2z=15

Mathematics
2 answers:
rosijanka [135]3 years ago
7 0
Y 50 I think it is I am not to sure
BARSIC [14]3 years ago
5 0

Step-by-step explanation:

<h2>hope it helps you see the attachment </h2>

<h3>here I have used substitution method and also elimination method in one equation </h3>

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pls help‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎
tensa zangetsu [6.8K]

Answer:

Hannah

Step-by-step explanation:

She spent more time on the interviews thus got to less

8 0
3 years ago
Read 2 more answers
Help please!! i will mark you brainliest
Gre4nikov [31]

Answer:

the equation is (y-3)^2 = 4(x+3)

8 0
3 years ago
Please help with this question!
Nostrana [21]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

a ) Two matrices cannot be multiplied.

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

b )

The answer is | 20 - 4 - 12 |

| 8 2 19 - |

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

7 0
3 years ago
A whole lotta points. Please answer its life and death urgency. I will give everything, including brainliest. But ONLY if you an
Oksana_A [137]

Answer:

The correct answer is 31x + 0.5

Step-by-step explanation:

∵ 13x + 5 + 17x - 4.5 + x

To solve this correctly you must to add the coefficients of the like terms (terms who has same variables or constant terms)

∵ 13x , 17x , x are like terms ⇒ terms with same variable

  (same letters and same power)

∵ 5 , 4.5 are like terms ⇒ constant terms (numbers only)

∴ (13x + 17x + x) + (5 - 4.5) = 31x + 0.5

* <u>The error of first answer:</u>

- 18x + 17x - 4.5 + x

- She add 13x + 5 = 18x ⇒ she add unlike terms

* <u>The error of second answer:</u>

- 35x - 4.5 + x

- She add 13x + 5 + 17x  = 35x ⇒ she add 2 like terms with 1 unlike term

* <u>The error of third answer:</u>

- 30.5x + x

- She add 13x + 5 + 17x - 4.5 = (13x + 17x) + (5 - 4.5) =

  30x + 0.5 ⇒ she add 2 like terms and 2 constant terms

  and then add the 2 unlike answers

* <u>The error of fourth answer:</u>

- 31.5x

- She add 13x + 5 + 17x - 4.5 + x = (13x + 17x + x) + (5 - 4.5) =

  31x + 0.5 ⇒ she add 3 like terms and 2 constant terms

  and then add the 2 unlike answers

5 0
3 years ago
Question 37 (1 point)
o-na [289]

Answer:

The probability is:

P =\frac{1}{16}

Step-by-step explanation:

Keep in mind that the probability of getting a head is always the same for each

p = 0.5

Therefore the probability of not having a head is:

q = 1-p = 0.5\\q = 0.5

So if we throw the coin 4 times the probability P of not getting any head is:

P = q * q * q * q\\\\P = q ^ 4\\\\P = 0.5 ^ 4\\\\

P =\frac{1}{16}

5 0
3 years ago
Read 2 more answers
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