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FromTheMoon [43]
3 years ago
9

Determine if (1, 3) is a solution to the given system of linear equations. 5x+y=8 x+2y=5

Mathematics
2 answers:
anygoal [31]3 years ago
5 0

Answer:

No, because substituting the given ordered pair doesn't yields two true expressions

Step-by-step explanation:

5x + y = 8

5 + 3 = 8 so thats correct

x + 2y = 5

1 + 6 =7, not 5

so only 1 is correct

Vlad [161]3 years ago
3 0
No one is correct hoped that helps !
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Need urgent help in mathematics!! Will mark brainliest!!!!
Nataly [62]

₇P₅ is a permutation. you can find this setting in the statistics menu of your scientific calculator (i think).

If you don't have a scientific calculator, you can use the following formula:

nPr = \frac{n!}{(n - r)!}

₇P₅  = \frac{7!}{(7 - 5)!}

     = \frac{7}{2!}

     = \frac{7 * 6 * 5 * 4 * 3 * 2!}{2!}

     = 7 * 6 * 5 * 4 * 3

    = 2520

Answer: C

3 0
4 years ago
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Step-by-step explanation:

25 x 2 - 45 x -10

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8 0
3 years ago
Question 3 (Multiple choice) If 0
nikitadnepr [17]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Choose the equation that represents the graph below: (1 point)
nata0808 [166]
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4 years ago
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n200080 [17]

Answer:

Option 2: 27 is the correct answer.

Step-by-step explanation:

Given functions are:

f(x) = x^2-2\\g(x) = 4f(x) - 1

As we can see that the function g(x) in written in terms of f(x), first of all we have to find g(x) by putting the value of f(x) in g(x)

So putting f(x) = x^2-2 in g(x)

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As g(-3) has to be found, putting x=-3 in g(x)

g(-3) = 4(-3)^2-9\\= 4(9)-9\\=36-9\\=27

Hence

Option 2: 27 is the correct answer.

5 0
3 years ago
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