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Andrews [41]
2 years ago
10

Algebra help please?

Mathematics
2 answers:
katrin [286]2 years ago
6 0
The answer to that is -1.89041096 - 4.95890411 i
gtnhenbr [62]2 years ago
5 0
I/1+13i is simplified form

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How do u put 72 7/10 into decimal?
NNADVOKAT [17]

Answer:

72.7

Step-by-step explanation:

First multiply 72 by 10

because 72 is 72 10s, making it a whole number.

then add 720 (72 times 10) to 7.

then all of that over 10.

then just divide.

727/10

72.7

this is what you do for all mixed numbers like that one.

7 0
2 years ago
Read 2 more answers
Someone quickly help! thanks!
Goryan [66]

Answer:

x=23°; θ=87°

Step-by-step explanation:

These two angles create what is known as supplementary angles, or 2 angles that add up to 180°. We know this because all horizontal lines are 180° on either side. Since we know the total value of these two angles should equate to 180°, we can set up a simple equation:

93+(3x+18)=180

Now, using algebra, we can solve for x:

111+3x=180

3x=69

x=23

Plugging x back into the equation, we get:

3(23)+18=87

Therefore, the total angle is equal to 87° and x is equal to 23°.

Hope this helps!

5 0
3 years ago
PLEASE HELP ME I PUT A PICTURE WITH ALL POSSIBLE ANSWERS what is -22.2 x (-6.1)?
Montano1993 [528]

Answer:

D

Step-by-step explanation:

You just need to calculate it as usual. Might as well do in fraction form for clearer understandings

4 0
3 years ago
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Solve the system by substitution.<br> y = -9x<br> y = 2x + 33
Gwar [14]

Answer:

y =  - 9x \\ theny = 2x + 33 \\  - 9x = 2x + 33 \\  - 9x - 2x = 33 \\  - 11x = 33 \\ x =  \frac{ - 33}{11}  =  - 3 \\ x =  - 3 \\then\\ y=-9×-3=21\\ thank \: you

5 0
3 years ago
What is the total price of a $45.79 item when a 7% taxe is added
meriva

Answer:

$42.58

Step-by-step explanation:

You would multiply the price of the item (45.79) by the percentage as a decimal (0.07) and subtract the product.

in this case:

45.79x0.07 = 3.205 (rounded 3.21)

45.79-3.21 = 42.58

6 0
2 years ago
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