according to the research how much faster will the fastest dinosaur run in comparison to the t.rex show your math

1 answer:

8 0

Well, according to thedinosaurmuseum.com, the fastest ever running dinosaur(s) could run to up to (approx.) 60 km an hour. And according to sciencenetlinks.com, T. rex's ran approx. 45 miles an hour. To be able to subtract, you would have to find out how many kilometers in a mile. There are 1.60934 kilometers in a mile (round it to 1.6). So that means that a mile is slightly larger than a kilometer. Now you have to multiply 60 km by 1.6. Once you do that, subtract that number by 45. And there is your answer! I hope this has helped!

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What are the possible values of x in 8x2 + 4x = -1?

Westkost [7]

Answer:

The possible values of x are:

x= $\frac{-1+\sqrt{3}}{4} \,\,or\,\, x= 0.18$

and

x= $\frac{-1-\sqrt{3}}{4} \,\, or \,\, x= -0.68$

Step-by-step explanation:

$8x^2+4x+1=0$

Using Quadratic formula to solve this equation:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\a = 8 \,\, b = 4\,\, c = -1\\Putting \,\, values \,\, in \,\, the\,\, equation\\x= \frac{-4\pm\sqrt{(4)^2-4(8)(-1)}}{2(8)}\\x= \frac{-4\pm\sqrt{16+32}}{16}\\x= \frac{-4\pm\sqrt{48}}{16}\\x= \frac{-4+ \sqrt{48}}{16} \,\, and \,\, x= \frac{-4- \sqrt{48}}{16}\\x= \frac{-1+ \sqrt{3}}{4} \,\, and \,\, x= \frac{-1- \sqrt{3}}{4}$

The possible values of x are:

x= $\frac{-1+\sqrt{3}}{4} \,\,or\,\, x= 0.18$

and

x= $\frac{-1-\sqrt{3}}{4} \,\, or \,\, x= -0.68$

4 0

3 years ago

The equation c=2.5t represents the cost,(c),for (t) ticket to the school play. Does a value of 3.5 for (t) make sense in this si

scoundrel [369]

Answer:

Step-by-step explanation:

No, this doesn't make sense because as stated in the problem, each ticket costs $2.50. Since you cant buy part of a ticket, you would have to have a whole number for t. You cannot buy 3.5 tickets.

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3 years ago

Read 2 more answers

What is the solution of 5sin2θ=3 for 0≤θ≤2π? Please help.

grigory [225]

Answer:

C) $\theta\approx\{0.3218,1.249,3.463,4.3908\}$

Step-by-step explanation:

$5\sin2\theta=3;\: 0\leq\theta\leq 2\pi\\\\\sin2\theta=\frac{3}{5}\\ \\2\theta\approx\{0.6436,2.498,6.926,8.7816\}\\\\\theta\approx\{0.3218,1.249,3.463,4.3908\}$