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Harman [31]
3 years ago
8

−4 + 9 − r − 5 in an equation

Mathematics
2 answers:
UNO [17]3 years ago
7 0

Answer:

The answer should be 9+r=9

Step-by-step explanation:

-4+9-r-5=0

do -4+(-5) which will give you -9

so, then you do 9+r-9=0

after that, with the -9, you do +9 under the -9 and where the 0 is, you put +9

that's how you get the answer 9+r=9

SVETLANKA909090 [29]3 years ago
5 0

Answer:

Deez N--utz

Step-by-step explanation:

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A theater can seat 273 people. The number of rows is 8 less than the number of seats in each row. How many rows of seats are the
artcher [175]
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3 0
3 years ago
What are the roots of the equation 16x2 + 40x + 27 = 0 in simplest a + bi form?
bezimeni [28]

9514 1404 393

Answer:

  -5/4 +i(√2)/4 and -5/4 -i(√2)/4

Step-by-step explanation:

I find simplest form to be easier to get to if the leading coefficient is 1. Dividing by 16, we have ...

  x^2 +5/2x +27/16 = 0

Completing the square by adding and subtracting the square of half the x-coefficient, we get ...

  (x^2 +5/2x +25/16) +27/16 -25/16 = 0

  (x +5/4)^2 = 2/16

Subtracting 2/16, taking the square root, and subtracting 5/4 gives ...

  x +5/4 = ±√(-2/16)

  x = -5/4 ±i(√2)/4

The roots are -5/4 +i(√2)/4 and -5/4 -i(√2)/4.

7 0
3 years ago
Have 15 minutes please help!!
Marina86 [1]
Anything which have their degree as 0 is always equal to 1
=> 5^0=1
Option 3 is the answer..!!
Hope this helps you!!

Good Luck!
3 0
3 years ago
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