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Nookie1986 [14]
3 years ago
7

Which addition expression

Mathematics
1 answer:
Natali5045456 [20]3 years ago
7 0
B. (9+4i)+(-1-7i)

This is because when you add the terms, the 9 becomes an 8 and the 4i becomes a negative 3i.
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The surface area of Earth is about 196.9 million square miles. The land area is about 57.5 million square miles and the rest is
ANEK [815]
196.9-57.5= 139.4 million sq miles is water
Probability is described as predicted outcomes over total outcomes so, 139.4/196.9
3 0
2 years ago
Which graph shows a rate of change of 1/2<br> between -4 and 0 on the x-axis?
galina1969 [7]

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Step-by-step explanation:

its the first one in edge

3 0
3 years ago
Read 2 more answers
[02.03]
SVEN [57.7K]

Answer:

2)  Equation 1 and Equation 2 have the same number of solutions.

Step-by-step explanation:

The two given equations are

1)  15x + 6 = 41                and                   2) 2x + 13 = 28

Solving both equations, we get

Solving (1) :   15x + 6 = 41 ⇒   15x  = 41 -  6 = 35

or, x = 35/15 ⇒ x = 7/3

Solving (2) :   2x + 13 = 28⇒   2x  = 28 -  13  = 15

or, x = 15/2 ⇒ x = 15/2

So, from above solutions we can say that Equation 1 and Equation 2 have the same number of UNIQUE solution.

6 0
3 years ago
Please help.<br> Is algebra.<br> PLEASE HELP NO LINKS OR FILES.<br> I don't want links.
elena55 [62]

Answer:

question 12 is answer B

question 13 is -8x^3

Step-by-step explanation:

exponent rule \frac{a^m}{a^n}  = a^(^m^-^n^)

4 0
3 years ago
Sylvia has a total of 16 trading cards: 8 superhero cards, 4 princess cards,2 villain cards, and 2 wildlife cards. what is the r
balu736 [363]
There as 16 cards, 2 of which are wildlife cards, so the ratio is 16 : 2. We can simplify it by dividing both sides by 2, so we'll get the ratio of 8 : 1.

I hope this helps! :)


5 0
3 years ago
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