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2 years ago

Find the midpoint of the line segment. Please hurry 15 points!

Mathematics

1 answer:

antoniya [11.8K]2 years ago

5 0

Answer: Hope this helps you

0,0

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A closed container has 2.04 ⋅ 1023 atoms of a gas. Each atom of the gas weighs 1.67 ⋅ 10−24 grams. Which of the following shows

Mamont248 [21]

Answer: 0.34 grams

Step-by-step explanation:

Given:

Number of atoms in a closed container

Weight of one atom

Total mass of all the atoms of the gas in the container

Thus A is the right option.

6 0

3 years ago

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 -

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

3 0

3 years ago

Hey um this is confusing

aleksandr82 [10.1K]

Answer:

15.7

Step-by-step explanation:

Lets take a = 50.

Area of Sector =

$\frac{a}{360} \pi {r}^{2} \\ = \frac{50}{360} \pi {6}^{2} \\ = \frac{50}{360} (3.14)(36) \\ = 15.7units {}^{2}$

4 0

3 years ago

One pound of grapes costs $1.55. Which equation correctly shows a pair of equivalent ratios that can be used to find the cost of

Sophie [7]

$5.53 dollars for 3.5lb. of grapes.

8 0

3 years ago

What is the lowest common denominator of 1/3 and 2/5

Citrus2011 [14]

Answer:

Step-by-step explanation:

3 and 5 are not common denominators so you have to find the lowest common denominator which is 15 because 3 times 5 is 15

8 0

3 years ago

Find the midpoint of the line segment. Please hurry 15 points!​

Find the midpoint of the line segment. Please hurry 15 points!