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2 years ago

What’s 7303000 is scientific notation

Mathematics

1 answer:

vaieri [72.5K]2 years ago

6 0

$7.303\times {10}^{6}$

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A string is 7 yards long. Jeff needs 2 feet and Lori needs 15 feet of string. If they both cut their string, how much is left?

Aleksandr [31]

$1\ yard=3\ feet\\\\7\ yard=3\cdot7=21\ feet\\\\21-2-15=4\\\\There\ are\ 4\ feet\ left$

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2 years ago

A student is solving the problem X to the power of 2+10x+ __=16+ __ my method of completing the square. What number should the s

Finger [1]

Answer: C) 25

Step-by-step explanation:

x²+10x+ __=16+ __

Only the square of 5, 5², which is 25, can make the two factors plus equal to 10x, so we need to add 25.

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2 years ago

5+ 3 cos ½x = 7<br>how to find the x?

Anon25 [30]

Answer:

$x=\pm 2 arcos(\frac{2}{3})+4k\pi$

where $k$ is an integer

Step-by-step explanation:

$5+3\cos(\frac{1}{2}x)=7$

We are going to isolate the trig expression first.

Subtract 5 on both sides:

$3\cos(\frac{1}{2}x)=2$

Divide both sides by 3:

$\cos(\frac{1}{2}x)=\frac{2}{3}$

Now since $\cos(u)$ is even then $\cos(u)=\cos(-u)$ .

So we have:

$\cos(\frac{1}{2}x)=\frac{2}{3}$

implies:

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Multiply both sides by 2:

$x=2arccos(\frac{2}{3})+4k\pi$

$-\frac{1}{2}x=arcos(\frac{2}{3})+2k\pi$

Multiply both sides by -2:

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So we can say the solution is:

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2 years ago

Approximate 188 to near hundreth

kipiarov [429]

Answer:

200

Step-by-step explanation:

we look at the tens place which is 8 since it greater than 5 we turn 8 and the number after into zeros and the 1 into a 2.

hope this welps :3

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2 years ago

the measure of one interior angle of a regular polygon is 60 degree mote the twice the measure of an exterior angle at the same

Wittaler [7]

Answer:

3 sides

Step-by-step explanation:

If the interior angle measures 60 degrees, this means the exterior angle measures 120 degrees.

The exterior angle of a regular polygon is given by 360/n, where n is the number of sides, so setting this equal to 120, we get that n=3 sides

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1 year ago