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jek_recluse [69]
2 years ago
11

What is the value of C so that -9 and 9 are both solutions of x squared+ C=103

Mathematics
1 answer:
Feliz [49]2 years ago
7 0

Step-by-step explanation:

Any number squared will be a positive number.

-9 or 9 squared will equal 81.

81 + C = 103

C = 103 - 81

22

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Will be giving brainliest to the correct one, no links or account will be reported:)
Y_Kistochka [10]

Answer:

63

Step-by-step explanation:

64+53+ (ㅣ) = 180

117 + (ㅣ) = 180

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4 0
2 years ago
Find dy/dx by implicit differentiation. <br> 4x2 + 5xy - y2 = 6
Vlada [557]
4x^2 + 5xy - y^2 = 6
Implicitly differentiating both sides,
4(2x) + 5(x y' + y) - 2yy' = 0

where y' = dy/dx

8x + 5xy' +5y  -2yy' = 0

combining y' terms
y' (5x-2y) +8x +5y = 0

y'(5x-2y) = -(8x+5y)

dy/dx = -(8x+5y)/(5x-2y)
or
dy/dx = (8x+5y)/(2y-5x)
5 0
3 years ago
Find the area of the triangle with the given measurements. Round the solution to the nearest hundredth if necessary. B = 67°, a
kvasek [131]

Among many other formulas, the area of a triangle is


S = \frac 1 2 a c \sin B


where B is the angle between sides a and c.


S=\frac 1 2(10)(20) \sin 67^\circ \approx 92.05 \textrm{ sq cm}



Answer: 92.05 sq cm, first choice


Bonus. Here's a formula for the area S of a triangle your teacher doesn't know:


16S^2 = 4a^2b^2 -(c^2-a^2-b^2)^2=(a^2+b^2+c^2)^2-2(a^4+b^4+c^4)



7 0
3 years ago
Consider the following triangle.
egoroff_w [7]

Answer: C

Step-by-step explanation:

U have to add the numbers up. Then times it by 2/3 and 1/3 to see if the same numbers are on ur screen.

7 0
3 years ago
Read 2 more answers
How many solutions does the equation have?
borishaifa [10]
First we have to distribute the parentheses on the left side, 2*x is 2x and 2*-3 is -6, so now the equation is 4x+2x-6 = 8x+12
Then, we can add together the two x's on the left side,
so now we have 6x-6 = 8x+12       Subtract 12 from both sides and
you get 6x -18 = 8x    Then you can subtract 6x from both the sides and get
-18 = 2x  Now we can divide both sides by 2, and the final answer is -9 = x
Since they are not the same and the two sides aren't unequal, there is one solution(:
Hope this is helping you(:
4 0
3 years ago
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