Please help number 24

Mathematics

1 answer:

alexandr402 [8]3 years ago

5 0

Yes, i believe you can.

Requirements for 3 sides to become a triangle are:

a + b >c

a + c > b

b + c > a

So, you have 36 toothpaste with 4 cm in length for each of them. So about 144cm in length.

In order to make a similar triangle you just need to divide all sides with 4 and see if the total sides is less than 144

176 / 4 = 44

208 / 4 = 52

176/4 = 44

Total = 140 . . . . .you just need 35 toothpicks for this

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Number 9 !!!! please answer !!!! explain how u got the answer and the answer of cpurse

storchak [24]

answer:

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180-118= Z is 62 degrees

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3 0

3 years ago

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Determine the equation of the line that passes through the points of intersection of the graphs of the quadratic functions f(x)

timofeeve [1]

Answer: $x-2y-2=0$

Step-by-step explanation:

Given :

$f(x) = x^2 - 4 \\ g(x) = - 3x^2 + 2x + 8$

Point of intersection :

$f(x)=g(x)\\x^2-4=-3x^2+2x+8\\4x^2-2x-12=0\\2x^2-x-6=0\\2x^2-4x+3x-6=0\\2x(x-2)+3(x-2)=0\\(x-2)(2x+3)=0\\x=2\,,\,\frac{-3}{2}$

$x=2\,;f(2)=2^2-4=0\\x=\frac{-3}{2}\,; f\left ( \frac{3}{2} \right )=\left ( \frac{3}{2} \right )^2-4=\frac{-7}{4}=-1.75$

So, we have points $\left ( 2,0 \right )\,,\,\left ( -1.5,-1.75\ \right )$

Equation of line passing through two points $\left ( x_1,y_1 \right )\,,\,\left ( x_2,y_2 \right )$ is given by $y-y_1=\frac{y_2-y_1}{x_2-x_1}\left ( x-x_1 \right )$