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Softa [21]
3 years ago
9

Solve the equation -11x Squared +1331=0

Mathematics
1 answer:
frozen [14]3 years ago
7 0
I hope this is right but the answer i got is x squared = 121
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Convert the polar representation of this complex number into its standard form z=4(cos150+isin150).
Katen [24]

Answer:

B

Step-by-step explanation:

Using the exact values

cos150° = - cos30° = - \frac{\sqrt{3} }{2}

sin150° = sin30° = \frac{1}{2}

Given

z = 4(cos150° + isin150° ) , substitute values

  = 4(- \frac{\sqrt{3} }{2} +  \frac{1}{2}i )

  = - 2\sqrt{3} + 2i , that is

(- 2\sqrt{3}, 2 ) → B

7 0
3 years ago
If the total area of a picture measuring 10 inches by 12 inches plus a matting of uniform width surrounding the picture is 224 s
ELEN [110]
Let
x-----------> <span>uniform width surrounding the picture

we know that
(10+2x)*(12+2x)=224-----> 120+20x+24x+4x</span>²=224
4x²+44x+120-224=0
4x²+44x-104=0

using a graph tool-----> to resolve the second order equation
see  the attached figure

the solution is
x=2 in

the answer is
2 inches

4 0
3 years ago
jillians school is selling tickects for a play. the tickets cost $10.50 for adults and $3.75 for students
Natali5045456 [20]

Answer:

What is the question?

Step-by-step explanation:

We need to know what problem to solve with the information provided.

4 0
3 years ago
Which list shows three solutions to the inequality?
Amiraneli [1.4K]
I think the answer is C
3 0
1 year ago
in a test correct answer are given positive numbers and for incorrect negative numbers jack scored in successive rounds were-65,
eimsori [14]

Answer:

<em>Jack scored a total of -40</em>

Step-by-step explanation:

<u>Arithmetic</u>

Jack took a test where the correct answers are given as positive numbers and the incorrect answers are negative numbers.

The scores were

-65,-10,-15,20,30

The total score is the arithmetic sum of all scores, including their signs:

Total score: -65-10-15+20+30

Total score: -40

Jack scored a total of -40

4 0
3 years ago
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