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den301095 [7]
2 years ago
8

Answer the questionsMark brainleist​

Mathematics
2 answers:
IrinaK [193]2 years ago
3 0

Answer:

A salt is made up of

covalent bond

cation and anion

atoms

coordinate bond

kykrilka [37]2 years ago
3 0

Answer: The Correct Answers are True, False, True, True

Step-by-step explanation: This is 100000% right just trust me on this bro

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a city stores fresh water in a spherical tank. The tank has a radius of 32 feet. One cubic foot is approximately 7.5 gallons. If
Serjik [45]
Answer: There will be about 888,915 gallons of water left in the spherical tank.

First, we need to determine the volume of the tank. The volume formula for a sphere is (4/3)pi(r^3). All we have to do is input the 32 for pi and evaluate. You will have a volume of 137,189 cubic feet.

Now, multiply that by 7.5 and you will have 1,028,915 gallons of water in the tank.

Finally, just subtract the 140,000 gallons and we are at our answer.
6 0
3 years ago
A hiker begins at sea level and descends 25 feet every minute. How long will it take to get to an elevation of -750 feet?
horsena [70]

Answer:

it would take about 7 1/2 minutes.

Step-by-step explanation:

please give brainliest

4 0
2 years ago
Read 2 more answers
What is the mathematical relationship between the atomic radius (r) and the lattice parameter (a0) in the BCC structure? a. b. c
ryzh [129]

Answer: Lattice parameter, a = (4R)/(√3)

Step-by-step explanation:

The typical arrangement of atoms in a unit cell of BCC is shown in the first attachment.

The second attachment shows how to obtain the value of the diagonal of the base of the unit cell.

If the diagonal of the base of the unit cell = x

(a^2) + (a^2) = (x^2)

x = a(√2)

Then, diagonal across the unit cell (a cube) makes a right angled triangle with one side of the unit cell & the diagonal on the base of the unit cell.

Let the diagonal across the cube be y

Pythagoras theorem,

(a^2) + ((a(√2))^2) = (y^2)

(a^2) + 2(a^2) = (y^2) = 3(a^2)

y = a√3

But the diagonal through the cube = 4R (evident from the image in the first attachment)

y = 4R = a√3

a = (4R)/(√3)

QED!!!

8 0
2 years ago
Read 2 more answers
"Ten subtracted from the quotient of a number and<br>7 is less than -6.​
RideAnS [48]
Written out, this would be (x / 7) - 10 < -6

solved, it would be x < 28
5 0
2 years ago
Simplify: 18-|8+3(2+2)-4|
NeX [460]

Answer:

2

Step-by-step explanation:

8 0
3 years ago
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