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aivan3 [116]
3 years ago
6

A student creates a triangle with a perimeter of 13 inches. According to the student, the longest side is 9 inches. Explain how

you know the student is incorrect.
Can someone please help, i’ll mark brainliest!!
Mathematics
1 answer:
mamaluj [8]3 years ago
8 0

Answer:

The student is wrong because the sum of any two sides of a triangle should be greter than the third side. The length of a single side of a triangle can not be half or more than half of the perimeter of that triangle. And since the given length is more than half of the perimeter , the student is incorrect .

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(cos x - (sqrt 2)/2)(sec x -1)=0
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(\cos x-\frac{\sqrt{2}}{2})(\sec x-1)=0 [/tex]

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\frac{(\sqrt{2}\cos x-1)}{\sqrt{2}}(\frac{1}{\cos x\ }-1)=0

(Reciprocal Identity)

(\frac{^{\sqrt{2}\\cos  x-1}}{^{\sqrt{2}}})(\frac{1-\cos x}{\cos x})=0

\frac{^{(\sqrt{2}\cos x-1})}{\sqrt{2}}\frac{(1-\cos x)}{\cos x}=0

(\sqrt{2}\cos x-1}){(1-\cos x)}=0 (ZeroProduct Property)

\sqrt{2}\cos x-1=0

\sqrt{2}\cos x=1

\cos x=\frac{1}{\sqrt{2}}

x=\frac{\Pi }{4}

and

1-\cos x=0

\cos x=1

x=0

x=0 and x=\frac{\Pi }{4} are the solutions.

6 0
4 years ago
Read 2 more answers
Jordan wants to buy a tuna sandwich. The price of a tuna sandwich combo is $7.20. If he wants just the tuna sandwich, the cost i
pickupchik [31]

Answer:

$16.91

Step-by-step explanation:

7 0
3 years ago
Find the solution to the following system using substitution or elimination: y = 3x + 2 y = -2x - 8 O A. (-5,-) OB. (-2,-4) O C.
mr Goodwill [35]

Answer:

B. (-2,-4)

Explanation

Given equations:

   y = 3x + 2

   y = -2x - 8

Solving both equations will yield the values of x and y;

Solution:

   y = 3x + 2    ----- (i)

   y = -2x - 8   ------ (ii)

Using substitution method, input equation i, into ii

    3x + 2 = -2x - 8

Collect like terms and solve;

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Then put x = -2 into i, to find y

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So, the solution of the equation is B. (-2,-4)

6 0
3 years ago
Based on the model, approximately how many customers will be on the restaurant when there are 10 cars parked in the restaurant’s
Zanzabum

Answer:

23

Step-by-step explanation:

From the graph, derive the best fit equation :

Using the points ;

(0,2.5)  (100 ,35)

x1 = 0 ; y1 = 2.5 ; x2 = 100 ; y2 = 35

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m= (32.5)/100

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The equation :

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6 0
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dsp73

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Step-by-step explanation:

7 0
3 years ago
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