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3 years ago

7

The length of an equilateral triangle is increased by 7 inches, so the perimeter is now 36 inches. Find the original length of e

ach side of the equilateral triangle.

1 answer:

STALIN [3.7K]3 years ago

4 0

The original length is 5 inches per side.

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The figure shows a bridge support, a cable, and the roadway of a bridge.

oksano4ka [1.4K]

Answer: 150

Step-by-step explanation:

4 0

2 years ago

Please help me asap!!!

Advocard [28]

Answer:

g=64.8 meters

Step-by-step explanation:

$\frac{26.1}{24.3}$ = $\frac{69.6}{g}$

69.6×24.3= 26.1×g

1,691.28=26.1g

64.8=g

g=64.8

Hope this helps! :)

Oh, I got the order of the ratios wrong, I'm sorry.

I just corrected it.

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2 years ago

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Sergio039 [100]

Answer:

{x | x<5/4}

Step-by-step explanation:

Add 2 to both sides and simplify:

4x<5

Divide both sides by 4 and simplify:

x<5/4

5 0

2 years ago

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What is the sum of the roots of the polynomial shown below?<br> f(x) = x^3 + 2x^2 - 11x-12

svp [43]

<u>Answer: </u>

Sum of the roots of the polynomial $x^{3}+2 x^{2}-11 x-12 \text { is }-2$

<u>Solution:</u>

The general form of cubic polynomial is $a x^{3}+b x^{2}+c x+d=0$ ---- (1)

If we have any cubic polynomial $a x^{3}+b x^{2}+c x+d=0$ having roots $\alpha , \beta , \theta$

Sum of roots $\alpha + \beta + \theta$ = $\frac{-b}{a}$ ---(2)

From question given that,

$x^{3}+2 x^{2}-11 x-12$ --- (3)

On comparing equation (1) and (3), we get a = 1, b = 2, c = -11 and d = -12

Hence the sum of roots using eqn 2 is given as,

= $\frac{-2}{1}$

= -2

Hence the sum of the roots of the polynomial $x^{3}+2 x^{2}-11 x-12 \text { is }-2$

4 0

2 years ago

If cot x = .78, what is tan x

Vanyuwa [196]

We know, tan x = 1 / cot x
So,tan x = 1/ 0.78
tan x = 1.28

In short,Your Answer would be 1.28

Hope this helps!

3 0

2 years ago