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3 years ago

Charlie runs at a speed of 3 yards per second . About how many miles per hour does Charlie run?

Mathematics

1 answer:

Debora [2.8K]3 years ago

6 0

Charlie runs 6.136 mi/hr

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How do I make a the subject of this formula <br><br>w=3(2a+b)-4

ololo11 [35]

Answer:

math

Step-by-step explanation:

w=3(2a+b)-4

=6a+3b-4

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3 years ago

Coleman graphed the relationship between the number of rotations of his front bike tire and the distance

Bad White [126]

Answer:

I feel like its either c or d but i'm not sure? I'm sorry for the inconvenience. I really did try.

Step-by-step explanation:

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3 years ago

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URGENT pleaseee help 10 points and brainlist if right!!!!<br> Use the Sohcahtoa method!!

Vsevolod [243]

Answer: x is 36 degrees

Step-by-step explanation:

To solve this triangle, we can use sin -1 x = 14 / 24. This gives us 35.69 degrees, but in your answer choices you only get integers. We can round this up to 36 degrees to get the answer.

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3 years ago

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In two or three sentences explain how you would solve for the real solutions of the following equation: please help asap!!

g100num [7]

the real solutions for the equation $x^{3}=-64$ are -

$x=4,2+-2\sqrt{3i}$

Step-by-step explanation:

$x^{3}$ = $- 64$

$x^{3} +64$ = 0

We can write 64 as $4^{3}$

$x^{3}$ + $4^{3}$ = 0

using the identity ( $x^{3}+y^{3} = (x+y)(x^{2} -xy+y^{2} )$ )

we get,

= $(x+4) (x^{2} -x*4+4^{2} )$

= $(x+4)(x^{2} -4x+16)$ ....................(1)

solving the quadratic equation ,

$x^{2} -4x+16$ =0

solutions of this quadratic equation can be obtained by

$x=-b +- \sqrt{b^{2}-4ac } /2a$

let use y for factors

$x=-(-4x)+-\sqrt{(-4x^{2} )-4*x^{2} *16} / 2*x^{2}$

$x=4x+-\sqrt{16x^{2} -64x^{2} } /2x^{2}$

$x=4+-\sqrt{16-64}/2$

$x=4+-4\sqrt{3i} /2$

<u /> $x=2+-2\sqrt{3i}$ ..................(2)

from the equation 1 we have,

$x-4=0$

which gives solution $x=4$

and from equation 2 we got $x=2+-2\sqrt{3i}$

so the real solutions for the equation $x^{3}=-64$ are -

$x=4,2+-2\sqrt{3i}$

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3 years ago

A company has determined that 1% of its widgets are defective. If a customer received 2 widgets, what is the probability that th

Vsevolod [243]

Assume independence because there are probably a lot of widgets. 1/100 x 1/100 = 1/10,000

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3 years ago