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Dafna11 [192]
2 years ago
10

A rectangle has is 70 cm long and w cm wide. The perimeter of the rectangle is 182 cm. What is the width, w?

Mathematics
1 answer:
joja [24]2 years ago
5 0

Answer:

w = 21

Step-by-step explanation:

i've done this kind of thing before a million times

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Complete the statements.
spayn [35]

Answer:

1. 30

2. 150

Step-by-step explanation:

3tan^2(x)-1 =0

Lets assume tan(x) = u

3u^2(x)-1 =0

Now we solve for 'u'

add 1 on both sides

3u^2(x) =1, divide both sides by 3

u^2 = \frac{1}{3}

Take square root on both sides

u = +-\frac{1}{\sqrt{3} }

We replace tan(x) for 'u'

tan(x) = +-\frac{1}{\sqrt{3} }  

x = 30 because tan(30) =+\frac{1}{\sqrt{3} }  in first quadrant

      x = 30      (tan is positive in first quadrant)

tan(x) =-\frac{1}{\sqrt{3} }                                                    

  x = 150 because tan(150) =-\frac{1}{\sqrt{3} }  in second quadrant

     tan is negative in second quadrant




4 0
4 years ago
What is the answer please help
Alekssandra [29.7K]

Answer:

x^2 + 3x -1

Step-by-step explanation:

f(x) = 3x-2

g(x) = x^2+1

(f+g)(x) =  3x-2+x^2+1

Combine like terms

           = x^2 + 3x -1

8 0
3 years ago
Help me please :(((((
notka56 [123]

Answer:

Square Prism

Step-by-step explanation:

Hope This Helps;)

7 0
3 years ago
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the cost for a company to manufacture x bracelets can be represented by the function C(x). if C(256)=1536, then the cost to the
Stels [109]
For this case we have the following variables:
 x: number of bracelets.
 C: manufacturing cost
 We have then:
 C (256) = 1536
 Thus,
 The number of bracelets is:
 256
 The price is:
 $ 1536
 Answer:
 
the cost to the company is $ 1536 to manufacture 256 braclets
8 0
3 years ago
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The local parts shop buys a machine that cost $500,000. Its value depreciates exponentially each year by 10% what is the machine
Irina18 [472]

Answer:

c

Step-by-step explanation:

4 0
3 years ago
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