how many atoms of each element are in the formula Pb3(PO4)4​

Answers

Answer 1
Pb (lead) - 3 atom
P (phosphorus) - 4 atoms
O (oxygen) - 16 atoms

Hope this helps :)

Related Questions

express 832.0646 to a significant​

Answers

Answer:

Step-by-step explanation:

200

Can u guys pls help me on this question and pls explain how u got the answer

Answers

Answer:

Surface area : 143.1

Step-by-step explanation:

Ok so first,

Bottom : 35.1 ft

Front : 36

Right side : 36

Left side : 36

Mai’s pencil is 24 cm long. She sharpens it, and it loses 1/8 of its length. How long is her pencil now?

Answers

Answer:

It is 21 cm long

Step-by-step explanation:

1/8 of 24 is 3, so you would subtract 3 from 24. 3*8=24.

In one city, the ratio of households with pets to
households without pets is 30 to 29. If 20,735 households
do not have pets, how many households have pets?
A 21.450
B 42,185
C 40,779
D 20.044

Answers

Answer:

40,779

Step-by-step explanation:

i took the k12 test

A 1/3
B 1/2
C 2
D 3
will give brainliesttt

Answers

Answer: A


Explanation:

What is this help me please

Answers

Answer:

I think it's D

Step-by-step explanation:

I think it's D

The figure is made up of a cone and a cylinder

To the nearest whole number, what is the volume of this figure?

Use 3.14 to approximate pie ,Round only your final answer to the nearest whole number.

Enter your exact answer in the box​

Answers

Answer:

personally I think the answer is 50.27

PLEASE HELP ME THANK YOU

Answers

Answer:

10[tex]x^{2}[/tex]  -20x -12.5 inches

Step-by-step explanation:

Triangle Area Equation:

Area of triangle = [tex]\frac{1}{2} * base * height[/tex]

base = 10x + 5

height = 2x - 5

1/2 (10x + 5) (2x - 5)

= 1/2 (20[tex]x^{2}[/tex] - 50x + 10x - 25)

= 1/2 ( (20[tex]x^{2}[/tex] - 40x - 25)

= 10[tex]x^{2}[/tex]  -20x -12.5 inches

a triangle has angles that measure 85 degrees and 37 degrees what is the measure of the third angle​

Answers

Answer:

58

Step-by-step explanation:

Answer:

58 degrees

Step-by-step explanation:

180-85-37 = 58

It is possible for a system of linear equations to have exactly 2 solutions.

Answers

Answer:

Number of Solutions

Most linear systems you will encounter will have exactly one solution. However, it is possible that there are no solutions, or infinitely many. (It is not possible that there are exactly two solutions.) The word unique in this context means there is a solution, and it's the only one.

Step-by-step explanation:

Hope it helps!

is 3/4 equivalent to 27/36

Answers

Yes because you can multiply 3/4 by 9/9 and you’ll get 27/36 :)

Answer:

yes , 27/36=3*9/4*9=3/4 both the number 27 and 36 can be multiplied by 9 and can be reduced to its lowest form i.e.

Please help me please

Answers

Answer:

3) [tex]x^{2}[/tex] + 4x - 21

Step-by-step explanation:

(x - 3)(x + 7)

Distribute:

x(x + 7)

-3(x + 7)

x(x) = [tex]x^{2}[/tex]

x(7) = 7x

-3(x) = -3x

-3(7) = -21

Combine like terms:

7x - 3x = 4x

Put it together:

[tex]x^{2}[/tex] + 4x - 21

Answer: x²+ 4x - 21

Let's do this step-by-step.

1. Apply the foil method. (formula: (a + b)(c + d) = ac + ad + bc + bd)

F - First

O - Outer

I - Inner

L - Last

= xx + x × 7 + (-3)x + (-3) × 7

2. Apply the minus and plus rules. + (-a) = -a

xx + 7x - 3x - 3 × 7

3. Simplify.

Convert xx into a exponent.xx ⇒ x²

Subtract 7 by 3.7x - 3x = 4x

Multiply 3 by 7.7 × 3 = 21

Hence, the answer is x² + 4x - 21

Let me know if you have any questions.

~ Lily, from Brainly.

Find the missing side or angle.
Round to the nearest tenth.
A=98°
b=11
c=19
a=[?]

Answers

Answer:

your answer will be a= 23.2

Step-by-step explanation:

hope this helps u have a great day ^_^

Answer:

A= 23.2

Step-by-step explanation:

[tex]a^2=b^2+c^2-2bc CosA[/tex]

[tex]a^2=11^2+19^2-2(11)(19)Cos 98[/tex]

[tex]a^2=121+361-418cos98[/tex]

[tex]a^2=121+361-(-58.17)[/tex]

[tex]\sqrt{a^2} =\sqrt{540.17}[/tex]

[tex]a=23.2[/tex]

[tex]-----------[/tex]

hope it helps..

have a great day!!

I NEED HELP PLS I FORGOT HOW TO DO THIS HELP

Answers

Answer:

Step-by-step explanation:

how many shapes of size A are in B ?  

I counted 9.5

then just multiply the count * the size of A

got it?

Answer: 28.5cm²_____________________

Step-by-step explanation:

area of shape A = 3cm²

number of A shape in shape B = 9 and half

1 shape A = 3cm²

9 shape A = 3×9 = 27cm²

1 half shape A = 3 ÷ 2 = 1.5cm²

area of shape B = 27cm² + 1.5cm² = 28.5cm²

_____________________Follow me

Does 3/10 x 1/2 = 3/20 ?

Answers

Answer:

Yes

Step-by-step explanation:

yes, yes it does

yeah it does, you just multiply the numerators and the denominator

Angelo is 7 years younger than his brother Jayson. If Jayson's age is J, what expression stand's for Angelo's age?​

Answers

Answer: j-7

Step-by-step explanation:

So Jayson is J

Angelo is 7 years younger than him so j-7

is (24, 7, 25) a Pythagorean triple?

Answers

is (24, 7, 25) a Pythagorean triple?

Step-by-step explanation:

No


10. In how many ways can a student select 7 out of 10 questions to work on an exam

Answers

Answer:

Step-by-step explanation:

7C10 = 10!/(7!)(10-7)!

7C10 = 10!/(7!)(3!)

7C10 = (10 x 9 x 8 x 7)/(7 x 6 x 5)(6)

7C10 = (10 x 9 x 8)/6

7C10 = 720/6

7C10 = 120

Answer: 120 ways

Determine which statement or statements are true. texts sent = 8 ; calls made = 5 For every 5 texts sent there were 8 calls made The ratio of texts sent to calls made was 8:5 For every 5 calls made there were 8 texts sent The ratio of texts sent to calls made was 5:8

Answers

Answer:

The ratio of texts sent to calls made was 8:5

For every 5 calls made there were 8 texts sent

Answer:

For every 8 calls made there were 2 texts sent.

And

For every 2 texts sent there were 8 calls made.

How
Many small circles of radius 7cm
can be got from big
big circle of radius
35cm​

Answers

Answer:

Let get x as a number of small circles.

Area of big circle = Area of all small circles

(Here . implies multiplication)

22/7 . 35 cm .35cm = 22/7 . 7cm .7cm .x

x =  (22/7 . 35 cm .35cm) / (22/7 . 7 cm .7cm)

x = (35 . 35) /(7.7)

x = 25

Step-by-step explanation:

What is the value of x in the equation –2.4x = 8.4? –20.16 –3.5 3.5 20.16

Answers

Answer: it’s 3.5

Step-by-step explanation:

HELLLLLLLLPPPPPP PLEASE ON THIS QUESTION

Answers

Answer and Step-by-step explanation:

Every episode is 20 minutes. The points would be:

(40, 2)(80, 4)(120, 6)(160, 8)

Un pueblo tiene 1500 vecinos de los que 975 viven de la pesca. ¿Que tanto por ciento son pescadores?

Answers

Answer:

97.5%

Step-by-step explanation:

Espero que esto ayude, ¿de dónde eres?

El porcentaje sería el siguiente = (975/1500) x 100 % = 65 %

29% of a university's freshman class are majoring in Economics. If 870 students in the freshman class are Economics majors, how many students are in the freshman class?

Answers

Answer:

x=3000

Step-by-step explanation:

870=29/100x

x=3000

Find the median of the data set: 3, 7, 3, 2, 7, 9.

A: 7
B: 5
C: 5.3
D: 3

Answers

To find the median, you order the numbers from least to greatest, then find the middle number.

3,7,3,2,7,9

2,3,3,7,7,9

There are two middle numbers, so we have to find the middle of the two.

3,4,5,6,7

5 is the median, so the answer is B.

---

hope it helps

Answer:

B) 5

Step-by-step explanation:

To solve, first list the numbers in numerical order:

2, 3, 3, 7, 7, 9

Now find the middle number(s) of the set:

2, 3, 3, 7, 7, 9

It's between 3 and 7, so find the middle of these two numbers:

3, 4, 5, 6, 7

The final answer is 5!

Hope it helps!!!

Quinn is trying to drink more water, so he has been keeping a log of how much water he
drinks. Quinn drank 30 ounces of water two days ago. Yesterday, he drank 20% less. How
much water did he drink yesterday?

Answers

Quinn Drank 24 Ounces

30 ÷ 100 = 0.3

0.3 Is 1%

0.3 x 20 = 6

6 Is 20%

30 - 6 = 24

24 Ounces

PLEASE HELP WITH EXPLANATION

Mary always saved 45% of his salary. When his salary decreased by 20% in April, his savings decreased by $180.
How much was Mary’s salary before the decease?

Answers

Answer:

Step-by-step explanation:

Answer:

Is Mary a guy?  :|  

Step-by-step explanation:

I did this by just a good guess  , not really the right way

2000*.45=900  ( 900 is the old savings)

2000*.2 =400   ( how much her salary went down by )

2000-400=1600 ( new salary )

1600*.45 = 720    ( 45% of new salary is new savings

900-720=180      ( change in savings is 180 , the amount the question asks for)

Mary's old salary was 2,000

WILL GIVE BRAINLEST !
hAVE A GOOD DAy :)!

Answers

Answer:

6. B

7. C

8. B

Step-by-step explanation:

Answer is:

6. B

7. C

8. B

area of sector calculations .
help me and show your work please , thank you so much

Answers

Answer:

A = 54.11 unit²

Step-by-step explanation:

Given that :

A = θ/360 * πr²

A = 62/360 * π(10)²

A = 0.1722222 * π * 100

A = 54.105206

A = 54.11 unit²

Let the measure of Arc B C D = a°. Because Arc B C D and Arc B A D form a circle, and a circle measures 360°, the measure of Arc B A D is 360 – a°. Because of the ________ theorem, m∠A = StartFraction a Over 2 EndFraction degrees and m∠C = StartFraction 360 minus a Over 2 EndFraction degrees. The sum of the measures of angles A and C is (StartFraction a Over 2 EndFraction) + StartFraction 360 minus a Over 2 EndFraction degrees, which is equal to StartFraction 360 degrees Over 2 EndFraction, or 180°. Therefore, angles A and C are supplementary because their measures add up to 180°. Angles B and D are supplementary because the sum of the measures of the angles in a quadrilateral is 360°. m∠A + m∠C + m∠B + m∠D = 360°, and using substitution, 180° + m∠B + m∠D = 360°, so m∠B + m∠D = 180°.

What is the missing information in the paragraph proof?

Answers

Answer:

A. Inscribed Angle

Step-by-step explanation:

Because the angles are inscribed in the circle, the angle lie on arcs which mean that the angles have to add up to 360 degrees just like a circle is 360 degrees, making it a quadrilateral that is inscribed!

The missing information in the paragraph proof should be considered as the Inscribed Angle.

What is  Inscribed Angle?

In terms of geometry, an inscribed angle should be the angle that should be created in the interior of a circle at the time when two chords intersect on the circle. Since the angles should be inscribed in the circle so here the angles should be added up to the 360 degrees same as like the circle also at the same time it should make the quadrilateral

Therefore, The missing information in the paragraph proof should be considered as the Inscribed Angle.

Learn more about an angle here: https://brainly.com/question/21103473

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