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Vladimir79 [104]

3 years ago

13

What is −12÷23? A)−36 B)−24 C)−18 D)−8

1 answer:

elena-s [515]3 years ago

5 0

Answer:

none of them are correct

Step-by-step explanation:

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What are the expressions?

Romashka [77]

<h2>Explanation:</h2>

Here we need to solve some expressions. Remember the following rules:

$(+)(+)=+ \\ \\ (-)(-)=+ \\ \\ (+)(-)=- \\ \\ (-)(+)=-$

Then, from the left side:

$5-2\cdot 7=5-14=\boxed{-9} \\ \\ 5-2\cdot 4=5-8=\boxed{-3} \\ \\ 5-2\cdot 0=5-0=\boxed{5} \\ \\ 5-2\cdot -3=5+6=\boxed{11} \\ \\ 5-2\cdot 10=5-20=\boxed{-15} \\ \\ 5-2\cdot -8=5+16=\boxed{21} \\ \\$

from the right side:

$-(-4)+3=4+3=\boxed{7} \\ \\ -(6)+3=-6+3=\boxed{-3} \\ \\ -(-8)+3=8+3=\boxed{11} \\ \\ -(-5)+3=5+3=\boxed{8} \\ \\ -(2)+3=-2+3=\boxed{1} \\ \\ -(15)+3=-15+3=\boxed{-12} \\ \\ -(-6)+3=6+3=\boxed{9}$

4 0

3 years ago

Graph the function.

frosja888 [35]

Answer: Look at explanation

Step-by-step explanation:

The leftmost point = Least x possible

For the square root to have real answers, the inside of the root has to be 0 or positive, so x + 1 = 0 so x = -1 is the least possible x

Substitute the x value into the equation getting y = 5

So the leftmost coordinate is (-1,5)

The other three can be any point on the graph so any x value more than -1 is suitable

But, I will choose the three myself, you can use any pair of x and y

(3,7) (0,6) (8,8)

7 0

3 years ago

Cali bought a sweater priced a $60. If the sales tax is 9% what is the total purchase price of the sweater?

forsale [732]

Answer:

65.4

Step-by-step explanation:

60*.09 = 5.4

60+5.4 = 65.4

8 0

3 years ago

Some track and field athletes feel that they are more likely to win a race if they start on the inside lane. The data above show

ivolga24 [154]

Answer:

D.]

Step-by-step explanation:

We will find the standard deviation and variance:

Variance= E $x^{2}$ -[ $[E(x)]^{2}$

E[x] = 3.462

E[{x}^2]= 31.86

Var(x)= 31.86-(3.462)^2 = 28.4

Standard deviation = $\sqrt{Var(x)}$

= $\sqrt{28.4}$

= 5.833 = 6(aproximately)

Therefore, the chances of winning are equal in each lane.

4 0

3 years ago

Read 2 more answers

Can someone please help me with this question?

Afina-wow [57]

It would be the 3rd option
28x^2-7x+8x-2
Factorization: 7x(4x-1)+2(4x-1)
(7x+2)(4x-1)

3 0

3 years ago