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Alexus [3.1K]
3 years ago
8

Vineet solved a system of equations by substitution. In his work, he substituted an expression for one of the variables and solv

ed for the value of the other. This resulted in the equation 7 = 9. What can Vineet conclude?
Mathematics
2 answers:
gayaneshka [121]3 years ago
7 0
<h2>Answer:</h2>

He can conclude that the system of equations is inconsistent, i.e. it has no solution.

<h2>Step-by-step explanation:</h2>

We know that we get a no solution when we get a expression which is always false.

Here,

Vineet solved a system of equations by substitution.

In his work, he substituted an expression for one of the variables and solved for the value of the other.

This resulted in the equation 7 = 9.

which is a false identity.

since 7 can never be equal to 9.

<em>Hence, the system of equations is inconsistent , it has no solution.</em>

Eddi Din [679]3 years ago
3 0

He can conclude that the system of equations has no solution since one equation in it always results with false equivalency.

Hope this helps.

r3t40

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Answer:

x = -2

Step-by-step explanation:

-3 = -13 - 5x

-3 + 13 = -5x

10 = -5x

10 ÷ (-5) = x

-2 = x

6 0
2 years ago
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Can someone help me with all this?? i really dont get it ​
olga nikolaevna [1]

Answer:

A=78

B=102

C=78

Step-by-step explanation:

A= a and 102 are on a straight line so they add up to 180. 180-102=78. The same goes for C

B= the vertical angle for 102, or the same thing with a and c, just flipped around

8 0
3 years ago
You read online that the probability of being dealt four‑of‑a‑kind in a five‑card poker hand is 1 / 4165. Explain carefully what
Lapatulllka [165]

Answer:

There is about 4,164/4,165 chances of not getting getting a four of a kind. So, it is extremely unlikely or even borderline impossible in that situation to get a four of a kind.

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Step-by-step explanation:

A. It does mean that if you are dealt 4165 five‑card poker hands, one will be four‑of‑a‑kind.

B.  It does not mean that all will be four‑of‑a‑kind. The probability is actually saying that only on the 4165 the poker hand will you get a four‑of‑a‑kind, not just on any of the 4165 poker hands.

C. The probability is actually saying that in the long run, with a large number of five‑card poker hands, the fraction in which you will be dealt a four‑of‑a‑kind is 1 / 4165.

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2 years ago
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rodikova [14]

Step-by-step explanation:

\beta

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4 {x}^{2}  - 10x + 5

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The plus and minus sign after b means we going to have two roots.

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We subsitue those values for Beta.

27a.

\frac{5}{2}

27b.

25

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