express as kilometres using decimals :


i )19 m

ii )28 m

iii )686 m

iv )75 km 6 m

v )8282 m

Answer:

15

Step-by-step explanation:

.15/100

Answer:

i = sqrt(-1)

Step-by-step explanation:

positive i would probably be undefined as well, and just positive sqrt(-1)

Answer: 1 every 6 times thrown

Step-by-step explanation:

Co

Answer:

that would be 60 yards

Step-by-step explanation:

3 feet in 1 yard, so divide 180 by 3 and you get 60 yards

Answer: he will be able to make 19 full pieces

Step-by-step explanation:

1. Start off by making 7 feet into 84 inches so the measurements can match.

2. Add 4/14 inches and the 1/8 a inch together so you know how much is being taken off 84 inches. The amount will be 35/8 inches.

3. Divide 84 inches by 35/8 inches = 19 1/5

4. The whole number of the answer will be how many boards you can make from the board.

Answer:

x = 4.2/3

Step-by-step explanation:

Answer:

Step-by-step explanation:

As an example, iodine-131 is a radioisotope with a half-life of 8 days. It decays by beta particle emission into xenon-131. After eight days have passed, half of the atoms of any sample of iodine-131 will have decayed, and the sample will now be 50% iodine-131 and 50% xenon-131.

50 grams to 25 grams is one half-life. 25 grams to 12.5 grams is another half-life. So, for 50 grams to decay to 12.5 grams, two half-lives, which would take 36 days total, would need to pass. This means each half-life for element X is 18 days.

Answer:

After 8 hours or 2 half-lives, you will have 972 grams of ruthenium left.

Step-by-step explanation:

hope this helps. . . <3

Answer:

361

Step-by-step explanation:

20^2 =400

19^2 = 361

answer is 19

The square of 19 is 361 which lies between the numbers 350 and 390.

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

The square of a number is the multiplication of that number with itself.

The square number between 350 and 390 will be given as,

We know that the square of 18 is 324 and the square of 20 is 400.

The square of 19 is given as,

19 × 19 = 361

Then the square of the 19 will be 361.

Then the square of 19 is 361 which lies between the numbers 350 and 390.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ2

Answer:

1/(1/8)= 8 cubes

Step-by-step explanation:

Volume of a rectangular prism is length × height × width

Length=7 1/2

Width= 15 1/2

Height=12

Volume of the prism is therefore:

7 1/2×12×15 1/2= 1395cm3

No of cubes with edge length 1/2 to fit into the prism will be:

Volume of cube is L*W*H

1/2*1/2*1/2= 1/8cm3

Therefore the no of cubes to fit into the Prism will be:

1395/(1/8)= 11160 cubes.

If one was stuck,the number of 1/2 edge length cube to fit into 1cm will be:

Answer:

2.4

Step-by-step explanation:

Answer:

it would be 6.5% tax the reason i know this is becuase its the same tax rate thats in my state :) glad i could help

Step-by-step explanation:

x=81

Step-by-step explanation:

[tex] → \sf \frac{65 + 73 + 76 + x}{4} = 73.75 \\ [/tex]

[tex]→ \sf65 + 73 + 76 + x = 295 \\[/tex]

[tex]→ \sf x = 81[/tex]

Answer: 18.75.

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Givens

L = 18 inches

W = 1 foot = 12 inches

H = 14 inches

Surface Area = 2 * L*w + 2*L * h + 2*w*h

Surface Area = 2 * 18*12 +2*18*14 + 2*12*14 all in linear inches

Surface Area = 432 + 504 + 336                  all in square inches

Surface Area = 1272  in^2

Answer:

A: Nine weeks and one day

Answer:

9 weeks and 3 days

Step-by-step explanation:

22 x 3 = 66

66 divided by 7 (days in the week) = 9.42 (9 = weeks)

9 x 7 = 63

66-63 = 3 (days)

Answer:

y = -1/5x -4

Step-by-step explanation:

We know the y intercept is -4 since it crosses the y axis at -4

The slope is negative since it goes down from left to right

Take two points on the line

(0,-4)  and (5,-5)

We can find the slope using the slope formula

m = ( y2-y1)/(x2-x1)

    = ( -5- -4)/( 5 -0)

    = (-5+4)/ ( 5-0)

   = -1/5

The equation for the line in slope intercept form is y = mx+b where m is the slope and b is the y intercept

y = -1/5x -4

Answer:

[tex]= 1 - \frac{\sqrt{11} }{11}[/tex]

Step-by-step explanation:

    [tex]\frac{\sqrt{11} -1}{\sqrt{11}}[/tex]

= [tex]\frac{\sqrt{11} -1}{\sqrt{11} } (\frac{\sqrt{11} }{\sqrt{11} })[/tex]

= [tex]\sqrt{11} (\sqrt{11} ) - \sqrt{11} (1) /\sqrt{11} (\sqrt{11} )[/tex]

= [tex](\sqrt{121} -\sqrt{11}) /\sqrt{121}[/tex]

= [tex](11 - \sqrt{11} )/11[/tex]

=  [tex]\frac{11}{11} -\frac{\sqrt{11} }{11}[/tex]

[tex]= 1 - \frac{\sqrt{11} }{11}[/tex]

Answer:

7

Step-by-step explanation:

Answer: the answer is 7

Step-by-step explanation:

Answer:

15 pieces

Step-by-step explanation:

Hope it helps!

Answer:

15

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Here is what I did to arrive at my answer:

((9 - 5)^2 – 1) + 3

Use PEMDAS for this:

First, calculate what is in the parenthesis

(9-5)

  =4

and you are left with

4^2-1

Next is exponents...

4^2 = 4 · 4

    =16 - 1

Now substract

=15

Then add

15 + 3 = 18

There you have it! The answer is D, 18.

I hope this helps :)

Multiply total centimeters by kilometers per centimeters

7.5 x 15 = 112.5

Answer: 112.5 kilometers

Answer:

112.5 kilometers between the 2 cities

Step-by-step explanation:

sounds fake but in miles its 69.9

Answer: I cant see the question that you asked  putting it on the?

Step-by-step explanation:

Answer:

12y

Step-by-step explanation:

ill give you more websites if you need them!

Answer:

-1x - 5

Step-by-step explanation:

Okay, so I believe you need to find what 3x + 5 and -4x - 10 equals?

For this you have to add like terms:

3x - 4x = -1x

5 - 10 = -5

If this isn't it just comment and I'll edit my answer! :)

Answer:

8

Step-by-step explanation:

-3+2+4+5

8

Answer:

8x^2-6x+15

Step-by-step explanation:

Step-by-step explanation:

8x^2-6x!15. that's the answer

Answer:

c = 6

Step-by-step explanation:

52 = 7 + 5(c = 3)

52 = 7 + 5c + 15

52 = 22 + 5c

-5c = 22 - 52

-5c = -30

c = [tex]\frac{-30}{-5}[/tex]

c = 6

Answer:

206 is the answer

Step-by-step explanation:

Like and give 5 star rating

Answer:

5 courage 1 classic

Step-by-step explanation:

So you already have 5 of the courage’s. Then, one fifth of them is 5/5=1. So 1 classic