2 years ago

What is the best estimate of 5 1/3 x 1 4/5 x 6 7/8 x 3 2/5 ? 144 180 210 336

Mathematics

1 answer:

Strike441 [17]2 years ago

8 0

For an estimate, the closest is 210

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Pleas help me find the answer and show the work to this question

lions [1.4K]

Answer:

$Leg\ 1 = 8$

$Leg\ 2 = 15$

Step-by-step explanation:

Given: See Attachment

Required

Determine the length of the legs

To do this, we apply Pythagoras theorem.

$Hyp^2 = Adj^2 + Opp^2$

In this case:

$17^2 = x^2 + (2x- 1)^2$

Open Bracket

$17^2 = x^2 + 4x^2- 2x-2x + 1$

$17^2 = 5x^2 - 4x + 1$

$289= 5x^2 - 4x + 1$

Collect Like Terms

$5x^2 - 4x + 1 - 289 = 0$

$5x^2 - 4x - 288 = 0$

Solving using quadratic formula:

$x = \frac{-b\±\sqrt{b^2 - 4ac}}{2a}$

So:

$x = 8$ or $x = -7.2$

Since, x can't be negative, then:

$x = 8$

One of the leg is:

$Leg\ 1 = x$

$Leg\ 1 = 8$

$Leg\ 2 = 2x - 1$

$Leg\ 2 = 2*8 - 1$

$Leg\ 2 = 16 - 1$

$Leg\ 2 = 15$

6 0

2 years ago

I'm still stuck on this one

Evgesh-ka [11]

The answer would be -4.5/5. You would have to plot the number in between -2 and - 1 4/5. Hope this helps!

7 0

3 years ago

Help Please!!!!!

GrogVix [38]

X ≥ 90 + 3x
You simplify the right side, then subtract 180 from both sides, then multiply by negative one.

7 0

3 years ago

On a road trip in Motanna, USA, Elise sees a road sign that says Helena 87. Elise tests the accuracy of her cars odometer and tr

mote1985 [20]

Answer:

No i dont think so but im not sure

Step-by-step explanation:

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3 years ago

) Which point on the number line shows the position of squared 77

a_sh-v [17]

The root of 77 is 8.774 so the answer is C

Answer: C

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2 years ago