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harina [27]
3 years ago
8

AB = 5x -9; BC= -2x + 12

Mathematics
1 answer:
BaLLatris [955]3 years ago
3 0

Answer:

X=-3

Step-by-step explanation:

5x - 9

-2x + 12

(+) (-)

7x = -21

X= -3

plz mark ice bear as Brainliest

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One angle of an isosceles triangle measures 80°. Which other angles could be in that isosceles triangle? Choose all that apply.
EastWind [94]
Your possible triangles are:
20°, 80°, 50°
8 0
3 years ago
What is 34/6 as a mixed number? :)
Bingel [31]
34 4
__. = 5 __
6. 6 2
In simplest form it would be 5 __
3

So, 34/6 = 5 2/3
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Hope this helps. :3


6 0
3 years ago
A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the
sineoko [7]

Answer:

x = $34.45

Step-by-step explanation:

Solution:-

The company makes a profit of $y by selling widgets at a price of $x. The profit model is represented by a parabola ( quadratic ) equation as follows:

                       y = -10x^2 + 689x -6775

We are to determine the profit maximizing selling price ( x )

From the properties of a parabola equation of the form:

                      y = ax^2 + bx + c

The vertex ( turning point ) or maximum/minimum point is given as:

                     x = -\frac{b}{2a} \\\\x = - \frac{689}{2*(-10)} =  \frac{689}{20}\\\\x = 34.45

The profit maximizing selling price of widgets would be x = $34.45.

4 0
3 years ago
Will mark brainliest to whoever can answer 10-15
fgiga [73]

f(x) = x² + 7

g(x) = -3x + 1

h(x) = 12/x

j(x) = 2x + 9

a.  g(10) = -3(10) + 1 = -20

b. f(3) = 3² + 7 = 9 + 7 = 16

c. h(-2) = 12/(-2) = -6

d. j(7) = 2(7) + 9 = 23

e. h(a) = 12/a

f. g(b+c) = -3(b+c) + 1 = -3b - 3c + 1

g. f(h(x)) = f(12/x) = (12/x)² + 7 = 7 + 144/x²

h. 16 = g(x) = -3x + 1,    -3x = 15,   x = -5

i. -2 = h(x) = 12/x,    x = 12/(-2),  x = -6

j.  23 = f(x) = x²+7,   16=x²,   x=±4

4 0
3 years ago
If 0.75:n: 5:8 then n is equal to​
Bumek [7]

Answer:

The correct answer is 1.2

Step-by-step Explanation :

(x-  5) = (0.75 ⇒ x = ( 6/5 = 1.20 )

8 0
3 years ago
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