Find the number of steel ball bearings, each of diameter 0.7 cm, which can be made from 1 kg of steel, given that 1 cm' of steel has a mass of 7.85 g.​

Answers

Answer 1

Answer:

707.7, or 707

Step-by-step explanation:

0.18 x 7.85 g = 1.413 g/one bearing. Total amount of bearings: 1kg = 1000 g/1.413


Related Questions

Point A and Point B are placed on a number line. Point A is located at -20 and point B is 5 less than point A. Which statement about point B is true?

a. It is located at -25 and is to the right of point A on the number line.
b. It is located at -15 and is to right of point A on the number line
c, It is located at -25 and is to the left of point A on the number line.

Answers

Answer:

so, choose c.

Step-by-step explanation:

[tex] - 20 - 5 = - 25[/tex]

{Please see the figure on the picture}

probability question

Answers

Uhhh I can’t see the Question???

Find k such that 16x2 – 8 /3x+k=0 has a repeated real solution.

Answers

Answer:

k = [tex]\frac{1}{9}[/tex]

Step-by-step explanation:

Using the discriminant

Δ = b² - 4ac

For a repeated real solution then

b² - 4ac = 0

Given

16x² - [tex]\frac{8}{3}[/tex] x + k = 0

with a = 16, b = - [tex]\frac{8}{3}[/tex] , c = k

(- [tex]\frac{8}{3}[/tex] )² - ( 4 × 16 × k) = 0

[tex]\frac{64}{9}[/tex] - 64k = 0 ( subtract [tex]\frac{64}{9}[/tex] from both sides )

- 64k = - [tex]\frac{64}{9}[/tex] ( divide both sides by - 64 )

k = [tex]\frac{1}{9}[/tex]

I’m crying rn I need helppp (number 4 ignore the rest) -1/2 to be left alone like without the x and what happened to the 5/2??

Answers

Step-by-step explanation:

The parallel line will have an equation of the form

[tex]y = -\dfrac{1}{2}x + b[/tex]

We solve for b by plugging in the values of the point (3, -4):

[tex]-4 = -\dfrac{1}{2}(3) + b[/tex]

[tex]\Rightarrow -8 = -3 + 2b[/tex]

Solving for b, we get

[tex]b = -\dfrac{5}{2}[/tex]

Therefore, the equation of the line parallel to 2x + 4y = 10 is

[tex]y = -\dfrac{1}{2}x -\dfrac{5}{2}[/tex]

In standard form we can write

[tex]x + 2y = -5[/tex] or [tex]2x + 4y = -10[/tex]

Use the distributive property to simplify each expression 10(9-1)

Answers

Answer:

see below

Step-by-step explanation:

10(9-1)

Distribute

10 * 9  - 10 *1

90 - 10

80

Answer: 80

Step-by-step explanation:

10(9-1) = 90 - 10 = 80

Evaluate m + 7.5 , when m = 8.6

Answers

Hi :)

m is a variable

m is defined as 8.6

substitued m

8.6 + 7.5 = 16.1

Answer:

m+7.5 = ? when m = 8.6

Sub 8.6 in equation for m and you get

8.6 + 7.5 = 16.1

Step-by-step explanation:

Add or Subtract: show your work 30 POINTS

Answers

Step-by-step explanation:

hopefully it is clear and understandable

:)

simplify 5 p - 3 - (1 + p) +( 2 - p)​

Answers

Answer:

3p-2

Step-by-step explanation:

................

Answer:

3p - 2

Step-by-step explanation:

[tex]5p - 3 - (1 + p) + (2 - p)[/tex]

[tex]5p - 3 - 1 - p + (2 - p)[/tex]

[tex]5p - 3 - 1 - p + 2 - p[/tex]

[tex]5p - 1p - p[/tex][tex]5p - 1p - 1p[/tex][tex](5 - 1 - 1)p[/tex][tex] = 3p[/tex][tex] - 3 - 1 + 2[/tex]

➡️ [tex] - 4 + 2[/tex]

➡️ [tex] = - 2[/tex]

[tex] = 3p - 2[/tex]

Find all points on the x-axis that are 14 units from the point (5, -7)

Answers

Answer:

can you submit the coordinet plane?

Step-by-step explanation:

Decmial: 0.77 thanks!​

Answers

Answer:

The digit in the tenths place is 10 times as much as the value of the digit in the hundredths place.

Step-by-step Explanation:

0.07 multiplied by 10 gives you 0.7

Show work and Evaluate 3/4 + 2/5

Answers

Answer:

23/20

Step-by-step explanation:

Find the common denominator of the 2 fractions (It's 20):

3/4 + 2/5            

Multiply both numerator and denominator by 5 for the first fraction and multiply by 4 for the second fraction:    

15/20 + 8/20        

Add the fractions together:

23/20

12. In the toy factory where you work, you inspect each toy for
defects as it comes off the assembly line and report the
defect ratio at the end of each day. On Monday, you
inspected 938 toys and recorded 67 of them as defective.
What is the ratio of defective toys to the total number of
toys that you inspected?
F.
938
H.
J.
K.
1: 67
1:14
1:13
13:1
14:1

Answers

67:938
But when you reduce this ratio your final answer is 1:14

Find the slope of the line graphed below

Answers

Answer:

-4/3

Step-by-step explanation:

To find the slope you do rise over run. The line goes down by four and to the right by three between the two points so the slope is -4/3/

8/6-5/4=
Please help quick

Answers

Answer:

1/12

Step-by-step explanation:

It is 1/12 :0) :) :)

The difference of 23 and 6 multiplied by 2

Answers

Answer:

23-6=17

17x2=34

Step-by-step explanation:

Please don't report this! I'm sorry if its wrong

A: What is the perimeter of HOUSE?
perimeter of HOUSE =


(round to the nearest hundredth - two decimal places)


B: What is the length of OH?

(round to the nearest thousandth - three decimal places)


C: What is the midpoint of OU?


D: Which is longer, OH or EH?


E: What is the perimeter of the triangle HOU?


perimeter of triangle HOU


(round to the nearest hundredth - two decimal points)

Answers

First calculate distances or lengths(Refer to attachment)

A:-

[tex]\\ \sf\longmapsto Perimeter=Sum\:of\:sides[/tex]

[tex]\\ \sf\longmapsto 5.3+9+11+9+9.7[/tex]

[tex]\\ \sf\longmapsto 15+29[/tex]

[tex]\\ \sf\longmapsto 44[/tex]

B:-

Refer to the attchment

C:-

[tex]\\ \sf\longmapsto \left(\dfrac{1+4}{2},\dfrac{1+6}{2}\right)[/tex]

[tex]\\ \sf\longmapsto \left(\dfrac{5}{2},\dfrac{7}{2}\right)[/tex]

D:-

EH>OH

E:-

[tex]\\ \sf\longmapsto Perimeter[/tex]

[tex]\\ \sf\longmapsto 9.7+5.3+9[/tex]

[tex]\\ \sf\longmapsto 24[/tex]

Answer:

The coordinates of the HOUSE:

H(-7, 1), O(1, 6), U(4, 1), S(4, -8), E(-7, -8)Part A

To find the perimeter first find the length of each side:

OH = [tex]\sqrt{(1 +7)^2+(6-1)^2} = \sqrt{64+25} =\sqrt{89}[/tex] ≈ 9.43 unitsOU = [tex]\sqrt{(4-1)^2+(1-6)^2} = \sqrt{9+25} = \sqrt{34}[/tex] ≈ 5.83 unitsUS = 1 - (-8) = 9 unitsSE = 4 - (-7) = 11 unitsEH = 1 - (-8) = 9 units

The perimeter is:

P = 9.43 + 5.83 + 9 + 11 + 9 = 44.26 unitsPart BOH = 9.43 units (see part A)Part C

Use midpoint formula:

x = (4 + 1)/2 = 2.5y = (1 + 6)/2 = 3.5

The point is (2.5, 3.5)

Part DOH = 9.43 units > EH = 9 units (see part A)Part E P(ΔHOU) = OH + OU + HU (or SE) = 9.43 + 5.83 + 11 = 26.26 units

2. A boy scored the given marks in various class-tests during a term, (each test being marked out of 20): 15, 17, 16, 16, 10, 12, 14, 16, 19, 12, 16. (a) What is his modal marks?​

Answers

Answer:

16 is the number occurring most often in the list.

Step-by-step explanation:

If the 45 animals on the farm have a total of 150 legs, how many cows does farmer Ken have?

Answers

Answer:

195

Step-by-step explanation:

Which group contains an equivalent percent, decimal, and fraction?
F. 60%, 0.06, 3/5
G. 75%, 7.5, 3/4
H. 90%, 0.9, 9/10
J. 78.5, 0.785, 7/8

Answers

Answer: H. 90%, 0.9, 9/10

Step-by-step explanation: they are all equal

Which best describes the relationship between the line that passes through the points (–9, –7) and (–12, –2) and the line that passes through the points (1, 9) and (6, 6)?

Answers

9514 1404 393

Answer:

  The lines are neither parallel nor perpendicular. They intersect in the 2nd quadrant.

Step-by-step explanation:

You have provided no descriptions, so we have shown the lines to let you draw your own conclusion regarding the description that best fits.

The rectangles are similar. Find x.

Answers

Answer:

x = 7 1/2

Step-by-step explanation:

We can use proportions to solve

12         5

----- = -----

18          x

Using cross products

12x = 18*5

12x = 90

Divide by 12

12x/12 = 90/12

x = 7 1/2

12/18 = 5/x

12x = 18 × 5

12x = 90

x = 90 ÷ 12

x = 7,5 => x = 7 1/2

162×(-92)-(-162)×(-5)-162×3​

Answers

Answer:

-16,200

Step-by-step explanation:

162×(-92)-(-162)×(-5)-162×3

-14,904 - 810 - 486 = -16,200

Answer:

-16200 is your answer....

plz plz help fast plz plZ
no trolls plz​

Answers

Answer:

3/6 or 1/2

Step-by-step explanation:

3 of the blocks are blue out of 6 blocks. Therefore 3/6.

Use the equation v=s+19 to find the value of v when s=2.
V=

Answers

Answer:

21

Step-by-step explanation:

s=2

so, v=2+19

19+2=21

Which of these is equal to .0625 ??

a. 4 ^ -15

b. 1 / 4^15

c. 16 ^ -2

d. (4 ^ -1) ^ 2

Help please!! I redid my assignment 3 times, and I still didn't get it correct! (The question was to find the 7 ones that equal .0625 , and those are all the ones that I thought didn't equal that)

Answers

The answer is option d.(4^-1)^2

The solution method

(4^-1)^2 ➡️ (1/4)^2 = 0.0625

Don't forget put heart ♥️

I need to write an expression to represent the volume of this shape

Answers

Answer:

v = 3.14x²y

Step-by-step explanation:

volume cylinder = πr²h

r = 2x ÷ 2 = x

h = y

Answer:

It is 3.14x²y

Step-by-step explanation:

formular:

[tex]{ \bf{V = \pi {r}^{2} h}}[/tex]

r is radius, r = 2x/2 = x

h is height, h = y

[tex]{ \sf{V = (3.14) \times ( {x}^{2} ) \times y}} \\ V = 3.14 {x}^{2} y[/tex]

Given f(x) =1/(x^2+4) and g(x) = square root (x+1) Find g(f(x)).

Answers

Step-by-step explanation:

all steps are in the picture above.

Note:if you have any question let me know about.thanks

9514 1404 393

Answer:

  g(f(x)) = √((x²+5)/(x²+4))

Step-by-step explanation:

  [tex]g(f(x))=g(\dfrac{1}{x^2+4})=\sqrt{\dfrac{1}{x^2+4}+1}=\sqrt{\dfrac{1+x^2+4}{x^2+4}}\\\\\boxed{g(f(x))=\sqrt{\dfrac{x^2+5}{x^2+4}}}[/tex]

I prefer this compact form, but some may want the denominator rationalized. This means the expression becomes ...

  [tex]g(f(x))=\sqrt{\dfrac{(x^2+5)(x^2+4)}{(x^2+4)^2}}\\\\\boxed{g(f(x))=\dfrac{\sqrt{x^4+9x^2+20}}{x^2+4}}[/tex]

What is the equation of a line perpendicular to y = -3x + 4 that passes through the point (-1, 6)?

Answers

Answer:

Equation is 3y = x + 19

Step-by-step explanation:

General equation:

[tex]y = mx + c[/tex]

For slope, m:

[tex]m_{1} \times m_{2} = - 1[/tex]

but m1 is -3:

[tex] - 3m_{2} = - 1 \\ m_{2} = \frac{1}{3} [/tex]

For y-intercept, c:

[tex]y = mx + c \\ 6 = ( - 1 \times \frac{1}{3} ) + c \\ \\ c = 6 + \frac{1}{3} \\ \\ c = \frac{19}{3} [/tex]

equation:

[tex]{ \sf{y = \frac{1}{3}x + \frac{19}{3} }} \\ \\ 3y = x + 19[/tex]

Let f(x) = 8x3 + 16x2 − 15 and g(x) = 2x + 1. Find f of x over g of x. WILL GIVE BRAINLIEST!

Answers

Answer:

4x² + 6x - 3 remainder -12

Step-by-step explanation:

Given:

(x) = 8x³ + 16x² − 15g(x) = 2x + 1

To find:

f(x) / g(x)

Use long division:

f(x) / g(x) = (8x³ + 16x² − 15) / (2x + 1)

2x + 1  | (8x³ + 16x² − 15

           | 8x³ + 4x²

                     12x² + 0x - 15

                     12x² + 6x

                               -6x - 15

                               -6x - 3

                                      -12

4x² + 6x - 3 remainder -12

f(x)=8x^3+16x^2-15g(x)=2x+1

[tex]\sf \dfrac{f(x)}{g(x)}[/tex]

[tex]\\ \rm\longmapsto \dfrac{8x^2+16x^2-15}{2x+1}[/tex]

Refer to attachment now

Find the value of this expression if x = 3.
x²– 1/x+1

Answers

Answer:

2

Step-by-step explanation:

x^2 - 1 = 9 - 1 = 8

8 / 3 + 1 = 8/4 = 2

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

2

Step-by-step explanation:

Given, x=3

Now,

x^2 - 1/ x+1

= 3^2-1/3+1

= 9-1/4

=8/4

=2

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