3 years ago

How can you solve (1+2)-(-3-4)?

Mathematics

1 answer:

kramer3 years ago

3 0

The answer is 10
-3-4 = -7
Then that subtraction sign makes the -7 a +7
You now have 3 + 7 = 10

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Selesaikan persamaan linear serentak berikut.<br> 2x + y = -5<br> 3x - 4y = 9

makkiz [27]

Answer:

(-1;-3)

Step-by-step explanation:

$\left \{ {{4(2x+y)=4*(-5)} \atop {3x-4y=9}} \right. \ => \ \left \{ {{8x+4y=-20} \atop {3x-4y=9}} \right. \ => \ \left \{ {{11x=-11} \atop {2x+y=-5}} \right. \ => \ \left \{ {{x=-1} \atop {y=-3}} \right.$

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3 years ago

If the area of a rectangle is x^2-9 and one dimension is x-3. what would be the other dimension?

Law Incorporation [45]

Answer:

Step-by-step explanation:

x2-9 = 0

Area of one dimension = x-3= 0

So, x2= 9

Square root on both sides;

x= +3 and -3

x-3 is one side

x+3 is the other dimension

4 0

3 years ago

Please help <br> Step by step

Aleonysh [2.5K]

The consumption of electricity in May based on the model will be 1225kw.

<h3>How to calculate the consumption?</h3>

The model that's given to calculate the consumption is:

C = 1200 + 5t

May = 5th month

The consumption in May will be:

C = 1200 + 5t

C = 1200 + 5(5)

C = 1200 + 25

C = 1225Kw

In conclusion, the consumption of electricity in May based on the model will be 1225kw.

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brainly.com/question/24741444

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4 0

2 years ago

Can someone help me this is urgent I really apressuare if someone did this at time please

Mariulka [41]

What's the question?

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3 years ago

Please help with the screenshot

jeka57 [31]

Answer:

$\sin(x) = \frac{16}{17}$

Step-by-step explanation:

sin = opposite/ hypotenuse

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3 years ago