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Andrew [12]
4 years ago
14

Note that the right triangles with sides equal to 5, 12, 13 and 9, 12, 13 both have a side equal to 12. using this fact find the

area of a triangle with sides 13, 14 and 15.
Mathematics
1 answer:
kondor19780726 [428]4 years ago
6 0
There is a mistake 9,12,13 is not a right triangle. but 9,12,15 is. IF you use this triangle instead, then the area of the 13,14,15 triangle is the sum of the area of the other two triangles.
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Please help me with this problem
LekaFEV [45]
When you multiply two numbers with the same base, their exponents add up.

3/7 + 1/4 = 12/28 + 7/28 = 19/28
It would be 2^19/28
4 0
3 years ago
What isthe turning point of the parabola equation isY=(x+2)(x-8)​
Law Incorporation [45]

Answer:

(3, - 25 )

Step-by-step explanation:

Given a quadratic in standard form : y = ax² + bx + c : a ≠ 0

The the x- coordinate of the turning point is

x = - \frac{b}{2a}

Given

y = (x + 2)(x - 8) ← expand factors using FOIL

  = x² - 6x - 16 ← in standard form

with a = 1 and b = - 6, thus

x = - \frac{-6}{2} = 3

Substitute x = 3 into the equation for corresponding value of y

y = (3 + 2)(3 - 8) = 5(- 5) = - 25

turning point at (3, - 25 )

7 0
3 years ago
18 ÷ -3 - -12 x -1 x -11 (the x is times, please solve)
Elena L [17]
126
Explanation
18/-3-(-12)•(-1)•(-11)
divide 18 by -3 and change signs on the 12
(-6)+12•(-1)•(-11)
multiply 12 and -1
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5 0
3 years ago
Find the slope of the line.
creativ13 [48]

Answer:

slope is 0

Step-by-step explanation:

The slope of any horizontal line is zero, 0.

7 0
3 years ago
Anna has 20 pints of green paint. she uses 2/5 of it to paint a landscape and 3/10 of it while painting a clover. she decides th
DanielleElmas [232]
First we have to find out how much green paint Anna lost by finding 2/5 and 3/10. 20 ÷ 5 = 4, 4 × 2 = 8 pints. 20 ÷ 10 = 2, 2 × 3 = 6 pints. 8 + 6 = 14 pints. 20 - 14 = 6 pints left. If she needs 12 3/4 pints in total, then you just have to do 12 - 6 to get 6 3/4 pints more that you need. I hope this helps!
6 0
3 years ago
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