All categories

2 years ago

-2 • (-3)3 = ? i really need help, I’m struggling so much in math.

Mathematics

2 answers:

Ronch [10]2 years ago

6 0

Answer:

The answer would be 54

Step-by-step explanation:

nadezda [96]2 years ago

4 0

Let's break this statement into small pieces. Let's start with $(-3)^{3}$ . This means $-3 \times -3 \times -3$ which is equal to $-27$ ( $-3 \times -3 = 9, 9 \times -3 = -27$ ).

Note the following rules

$- \times - = +$
$+ \times + = +$
$- \times + = -$

$+ \times - = -$

Now let's solve the rest of the equation. $-2 \cdot (-3)^{3} = -2 \cdot -27$ (Note $\cdot$ is the same as $\times$ . $= -2 \cdot -27$ , $54$

The answer is $54$

You might be interested in

N is an integer.<br> Write the values of n such that -15 < 3 ≤ 6<br><br> Help please ❤️❤️

Alex17521 [72]

Answer:

-4,-3,-2,-1,0,1

Step-by-step explanation:

First, doublepound and simplify it.

-15<3n

3n<6

Solve:

-5<n

n<2

Compound:

-5<n<2.

So the values are -4,-3,-2,-1,0,1

Hope this helps plz hit the crown :D

8 0

3 years ago

Read 2 more answers

Find f^-1(x) and it’s domain.

Mrac [35]

Answer: A

Step-by-step explanation:

Letting $f(y)=x$ ,

$x=\sqrt{y}-5\\\\x+5=\sqrt{y}\\\\y=(x+5)^{2}$

Also, the domain of an inverse is the same as the range of the original function, so the range is $x \geq 0$

7 0

1 year ago

A restaurant has two different seating options: a table and a family booth. A table can seat 4 people, and a family booth can se

krok68 [10]

Answer: 242 = 190 + 4t

Step-by-step explanation:

You know that the maximum capacity of the restaurant is 242 people, meaning that at most there can only be that many customers seated at that time. Normally, the equation would be 242 = 10b + 4t, but since you already know the number of booths, your work is cut in half, giving you 242 = 10(19) + 4t. The equation would be this because you have the capacity being equal to the number of tables x the number of people at each table and the number of booths x the number of people seated at each of them.

8 0

2 years ago

Convert 6/20to decimal

elena-s [515]

Answer:

6/20 as a decimal is 0.3.

4 0

3 years ago

Read 2 more answers

Solve for x: x^2 + 14x + 49

Kaylis [27]

Answer: -7twice

Step-by-step explanation:

This is a question on root of quadratic equation. The interpretation of the question

x² 14x + 49 is

x² + 14x + 49 = 0.meaning that we are to find two possible values for x that will make the expression equal 0.

We can use any of the methods earlier taught. For the purpose of this class, I am using factorization methods

x² + 14x + 49 = 0

Now, find the product of the first and the last terms, is

x² × 49 = 49×²

Now find two terms such that their productbis 49x² and their sum equals 14x, the one in the middle.

We have several factors of 49x² but only one will give sum of 14x. Because of the time, I will only go straight to the required factors .

49x² = 7x × 7x and the sum gives 14x the middle terms..

Now we now replace the middle one by the factors and then factorize by grouping.

x² + 14x + 49 = 0

x² + 7x + 7x + 49 = 0

x(x + 7) + 7(x + 7) = 0

(x + 7)(x + 7). = 0

Now to find this value of x,

x + 7 = 0

x. = -7twice.

The root of the equation = -7twice.

3 0

2 years ago