2 years ago

Will give brainliest please helpppp

Mathematics

1 answer:

Mama L [17]2 years ago

7 0

Its not the first two, I’m having trouble seeing those bottom two and what they are.

3rd one: y=ln x

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The height of a triangle is 3cm less than the length of its base and is area is 27m,find the height

Shkiper50 [21]

Area of a triangle=bh/2

27= x(x-3)/2
27= (x^2-3x)/2
54= x^2-3x
x^2-3x-54=0
(x-9)(x+6)=0

x=9, x=-6.
In this case, x must equal 9 since the base cannot be a negative number.

Final answer: Height=6 m

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Step-by-step explanation:

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2 years ago

If T is the midpoint of SU find the values of x, ST and SU.

Nitella [24]

Answer: The required values are

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Step-by-step explanation: Given that T is the midpoint of SU, where

ST = 5x and TU = 3x + 24.

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$ST=TU\\\\\Rightarrow 5x=3x+24\\\\\Rightarrow 5x-3x=24\\\\\Rightarrow 2x=24\\\\\Rightarrow x=\dfrac{24}{2}\\\\\Rightarrow x=12.$

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and

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Thus, the required values are

x = 12 units, ST = 60 units and SU = 120 units.

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