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4 years ago

What is the value of 8C5? A. 40 B. 56 C. 960 D. 6720

Mathematics

2 answers:

Elan Coil [88]4 years ago

8 0

I would probably say A 40

Rina8888 [55]4 years ago

7 0

The correct answer will be A 40

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Name the property. (6x4) x3 = 6x(4x3)

Helga [31]

Answer:

Associative

Step-by-step explanation:

When three or more numbers are multiplied, the product is the same regardless of the way in which the numbers are grouped.

6 0

3 years ago

The midpoint of RS is M(1, 2). One endpoint is R(-6, 6). Find the coordinates of endpoint S.

AysviL [449]

Answer:

The coordinates of point S are (8,-2)

Step-by-step explanation:

we know that

The formula to calculate the midpoint between two points is equal to

$M=(\frac{x1+x2}{2},\frac{y1+y2}{2})$

Let

Point S(x2,y2)

substitute the given values

$(1,2)=(\frac{-6+x2}{2},\frac{6+y2}{2})$

<em>Solve for x2</em>

$1=(-6+x2)/2\\2=-6+x2\\x2=2+6=8$

<em>Solve for y2</em>

$2=(6+y2)/2\\4=6+y2\\y2=4-6=-2$

therefore

The coordinates of point S are (8,-2)

5 0

3 years ago

Plzzz help asapppppp

erik [133]

Answer:

X =3

Step-by-step explanation:

X = 3 is the correct answer

3 0

3 years ago

39. Suppose A is an m n matrix with the property that for all b in Rm the equation Ax D b has at most one solution. Use the defi

Anna [14]

Answer: trivial solution is the only solution to Ax = 0, therefore columns must be linearly independent.

Step-by-step explanation: Recall that the columns of A are linearly independent if and only Ax = 0 had only the trivial solution. Since Ax = b has at most one solution, therefore the only solution to Ax = 0 is the trivial solution and the column vectors must be linearly independent.

5 0

3 years ago

(3x-14)^2-2x-1 evaluate the expression substitute 4 for x

Nat2105 [25]

Step-by-step explanation:

(3x-14)^2-2x-1

= (3.4 - 14)^ 2-2.4 -1

= (12- 14)^ 2-8-1

= (-2)^-7

= - 1/2⁷

= - 1/128

8 0

4 years ago