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2 years ago

A system of linear equations has how many solutions when the graphs intersect at a point.

Mathematics

1 answer:

pav-90 [236]2 years ago

7 0

Answer: One solution Explanation: just did this lesson a day ago

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Evaluate the following expression when x = 3 and y = 4:

OLEGan [10]

$\dfrac{ {3}^{2} + {4}^{3} }{2 + 3} \\ = \dfrac{9 + 64}{5} \\ = \dfrac{73}{5} \\ = 14.6$

Answer is C.

Hope this helps. - M

3 0

3 years ago

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Gabrielle is 10 years younger than Mikhail. The sum of their ages is 74. What is Mikhail's age?

Masja [62]

Answer:

Mikhail is 42 years old

Step-by-step explanation:

4 0

1 year ago

The length of a square is 4x-3. Find the area in terms of x

prisoha [69]

Answer:

The area of square in terms of x = 16x² -24x + 9

Step-by-step explanation:

It is stated in the question that the length of a square = 4x - 3

Formula to find the area of the square is

<h2 /><h2>Area = length²</h2><h2 />

Area = ( 4x - 3 )²

<em>by using ( a - b )² = a² + b² - 2ab</em>

here a = 4x and b = -3

So,

(4x)² + (-3)² - 2(4x)(3)

16x² + 9 - 2(12x)

16x² + 9 - 24x

16x² -24x + 9

The area of square in terms of x = 16x² -24x + 9

6 0

3 years ago

List the members of P(fa, b, c, d}). Which are proper subsets of fa, b,c, d)?

ankoles [38]

Answer: As i understand, the set is P = {a,b,c,d}

then all the proper subsets are all the sets that belongs to P, that are different of P. Then A is a subset of P if all the elements of A belongs to P, but A is not equal to P

this is:

the sets of one element : {a}, {b}, {c}, {d} and the null set; ∅

sets of two elements: {a,b} , {a,c} , {a.d}, {b,c}, {b,d}, {c,d}

sets of three elements : {a,b,c}, {a,b,d}, {a,c,d}, {b,c,d}

and there arent sets of 4 elements or more.

6 0

3 years ago

The tens digit of a certain number is five more than the units digit. The sum of the digits is 9. Find the number.

Leokris [45]

<span>the tens digit = n
</span><span>the units digit = n-5

n + n-5 = 9
2n = 9+5
2n = 14
n = 7 </span>← the tens digit

the units digit = n-5 = 7 - 5 = 2

<span>the number is 72</span>

4 0

3 years ago

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