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lesya692 [45]
2 years ago
9

Question: -2 - (-4)

Mathematics
2 answers:
vaieri [72.5K]2 years ago
7 0

Answer:2

Step-by-step explanation:

Sergeeva-Olga [200]2 years ago
5 0

Answer:

<h2>2</h2>

Step-by-step explanation:

Follow PEDMAS

-2 - (-4)

Follow rule : -(-a)= + a

- 2 + 4 \\  = 2

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A model Nasar race car lists 79.99 with a trade discount of 40% . What is the net price of the car?
slava [35]

Hello!

79.99 equals 100%, or in other words, 79.99 = 1.

To find the net price, you'll need to find the discount, multiplying the total by 40% (or 0.4):

\mathrm{79.99\cdot0.4 \approxeq 31.99}

Now, just subtract the initial price by the discount:

\mathrm{79.99-31.99\approxeq 48}

So, the net price of the car is approximately 48.00.

Hope this helps!

7 0
2 years ago
American Vending supplies vended food to a large university. Because students often kick the machines out of anger and frustrati
Alexxandr [17]

Answer:

0.77

Step-by-step explanation:

From the information given:

The breakdown time (a)= 3 hours

The breakdown rate (λ) = 1/a = 1/3

Average flow time in the system (W) = 2.305 hours

For the entire system;

The average down machines L = Wλ

= 2.305 × (1/3)

= 0.77

3 0
2 years ago
Ivory says that the equation 2x+2=x+1 has no solution because the left-hand side is double the right-hand side. Is Ivory Correct
lorasvet [3.4K]

Answer:

No, Ivory is incorrect. The equation does have a solution, and the solution is x = -1.

Step-by-step explanation:

We try to solve the equation first.

2x + 2 = x + 1

We want all variables on the left side and all numbers on the right side.

Subtract x from both sides.

x + 2 = 1

Subtract 2 from both sides.

x = -1

Check: Plug in -1 for x on both sides and see if it makes a true statement.

2x + 2 = x + 1

2(-1) + 2 = -1 + 1

-2 + 2 = 0

0 = 0

0 = 0 is a true statement, so the solution x = -1 is the correct solution.

Answer: Ivory is incorrect. The equation does have a solution, and the solution is x = -1.

8 0
2 years ago
Please show your work.​
Nastasia [14]

Answer:

1. 8.19, 2. 25.96, 3. 3.95

Step-by-step explanation:

use soh cah toa

1. cos is adjacent/hypotenuse

cos73=x/28

multiply both sides by 28

28cos73=x=8.186

2. sin is opposite over hypotenuse

sin68=x/28

multiply both sides by 28

28sin68=x=25.961

3. sin is opposite over hypotenuse

sin26=x/9

myltiply both sides by 9

9sin26=x=3.945

8 0
2 years ago
Simplify 3^0. Simplified form: ______
Shkiper50 [21]

Answer:

1

Step-by-step explanation:

3^0

Apply rule a^0=1 a=0

=1

Thanks for letting me help!!

6 0
3 years ago
Read 2 more answers
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