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3 years ago

Which of the following expressions is equivalent to the one shown below? (-5 x 4)3

Mathematics

2 answers:

EastWind [94]3 years ago

6 0

Answer:

$\huge \boxed{-60}$

Step-by-step explanation:

<h2>Order of operations</h2>

PEMDAS

Parenthesis, exponent, multiply, divide, add, and subtract from left to right.

First thing you do is parenthesis.

$\displaystyle (-5\times4)=-5\times4=-20$

Then multiply numbers from left to right to find the answer.

$\displaystyle-20\times3=-60$

$\Large \boxed{-60}$ , which is our answer.

salantis [7]3 years ago

5 0

Answer:

-60

Step-by-step explanation:

We'd solve anything inside the parentheses first:

-5 * 4 = -20

Now multiply:

-20 * 3 = -60

Our answer would be -60

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A rectangle has vertices at A(4,1), B(1,1), C(1,-6), and D(4,-6). What is the area of the rectangle?

slamgirl [31]

using the given coordinates, the rectangle is 7 by 3 units

area = 7*3 = 21 square units

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3 years ago

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There are 10 students in a class. The teacher chooses 2 students to go to the

CaHeK987 [17]

Answer:

The number of ways in which students were chosen is 45 ways .

Step-by-step explanation:

Given as :

The number of students in a class = x = 10

The number of students chosen by teacher to go to library = y = 2

Let The number of ways in which students were chosen = n ways

Now, According to question

So, number of ways in which students were chosen = $_{y}^{x}\textrm{C}$

Or, n ways = $_{2}^{10}\textrm{C}$

Or, n = $\frac{\L 10}{\L( 10-2)\times \L 2}$

Or, n = $\frac{\L 10}{\L8\times \L 2}$

Or, n = $\frac{10\times 9\times \L 8}{\L 8\times \L 2}$

Or, n = $\frac{10\times 9}{2\times 1}$

Or, n = 5 × 9

i.e n = 45

So, The number of ways in which students were chosen = n = 45 ways

Hence,The number of ways in which students were chosen is 45 ways . Answer

3 0

4 years ago

9 2/5 divided by 1 1/3

RSB [31]

Answer:

7 1/20

Step-by-step explanation:

9 2/5 ÷ 1 1/3 = 9 6/15 ÷ 1 5/15

= 141/15 ÷ 20/15

= 141/15 * 15/20

= 141/20

= 7 1/20

5 0

3 years ago

F(x)=1/2×+6 plz helpppppppppp

FromTheMoon [43]

Answer:

The solution set can be given as:

$\{x|x\ \epsilon\ R,x\neq -3\}$

Step-by-step explanation:

Given function:

$f(x)=\frac{1}{2x+6}$

To find the domain of the function in set notation.

Solution:

For the function $f(x)$ to exist the denominator must be ≠ 0

We have the denominator $(2x+6)$ which cannot be = 0.

Thus, we can find the domain of the function using the above relation.

The function $f(x)$ will not exist when:

$2x+6=0$

Solving for $x$

Subtracting both sides by 6.

$2x+6-6=0-6$

$2x=-6$

Dividing both sides by 2.

$\frac{2x}{2}=\frac{-6}{2}$

∴ $x=-3$

Thus, the function will not exist at $x=-3$ . This means it has all real number solutions except -3.

The solution set can be given as:

$\{x|x\ \epsilon\ R,x\neq -3\}$

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3 years ago

Which expression is a factor of x^2-5x-6 a) x-6 b x-2 c x-3 d x-1

IrinaVladis [17]

Answer:

(x+1)(x−6) = A

Step-by-step explanation:

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3 years ago

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