The product of two rational numbers:

Answer:

a) 10

b) 3

c) 16

Step-by-step explanation:

Count the squares and the half ones match them with each other to get a full square... so so sorry if im wrong i did this a while ago! Currently Yr 9 x

Answer:

true because all animals need to adapt in their lives

Answer:

Hope that answers your question, you're welcome

[tex] \longmapsto \: perimeter \: of \: rectangle = 2(l + b) \\ \\ \longmapsto2(5 + b) = 18 \\ \\ \longmapsto \: 5+ b = 9\\ \\ \longmapsto \: b = 4cm[/tex]

Answer:

=5y^2+2y+10

Step-by-step explanation:

2y−3y2+8y2+10

Simplify the equation to get whole numbers, multiply the like terms

I tried my best!

Answer:

-7

Step-by-step explanation:

x-8=-15

x=-7

Answer:

give us a more zoomed out picture

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

Answer:

200

Step-by-step explanation:

pi · radius · height

3.14 · 8 · 25 = 200

Answer:

$1224

Step-by-step explanation:

72 adults in the theater, and 17$ per adult ticket.

72 x 17 is 1224.

Answer:

7 square miles

Step-by-step explanation:

Answer:

I think its the right shape being the trapezoid

Step-by-step explanation:

the triangle looks like a triangle but then the reason why I said I think it's the on the right is because the acute angle makes it look like a trapezoid but then on the other side it has a right angle but I think its the right side.

Answer:

2.5 half-lives

Step-by-step explanation:

Find [tex]t_{h}[/tex] in [tex]N(t)=N_{0}e^{-kt}[/tex] given [tex]N(t) = 2, N_{0} =64,t=\frac{25}{2}[/tex]

[tex]N(t)[/tex] is the amount after the time [tex]t[/tex], [tex]N_0[/tex] `is the initial amount, [tex]t_{h}[/tex] is the half-life

We know that after half-life there will be twice less the initial quantity:

[tex]N(t_{h})=\frac{N_{0} }{2}=N_{0}e^{kt_{h} }[/tex].

Simplifying gives [tex]\frac{1}{2} =e^{-kt_h} or k = -\frac{In(\frac{1}{2}) }{t_{h} } .[/tex]

Plugging this into the initial equation, we obtain that [tex]N(t)=N_{0}e^\frac{In(\frac{1}{2}) }{t_{h} }[/tex]or [tex]N(t)= N_{0} (\frac{1}{2})^\frac{t}{t_h}.[/tex]

Finally, just plug in the given values and find the unknown one.

From [tex]2=64(\frac{1}{2})^\frac{\frac{25}{2} }{t_h}[/tex], we have that [tex]t_h[/tex] = [tex]\frac{25 In (2)}{2 In (32)\\}[/tex]

So you should get: [tex]t_{h} =\frac{25 In (2)}{2 In (32)\\}=2.5.[/tex]

The number of half-lives that transpired during this time period is equal to 2.5 hours.

Given the following data:

Time = 12.5 hours.

Initial mass = 64 grams.

Remaining mass = 2.0 grams.

Mathematically, the amount of a radiocative element that is remaining after time (t-hours) is given by this formula:

[tex]ln(\frac{A}{A_0} )=ln(\frac{1}{2} )\frac{t}{H}[/tex]

Where:

Substituting the given parameters into the formula, we have;

ln(2/64) = ln(1/2) × 12.5/H

-3.466 = -0.693 × 12.5/H

H = 12.5 × -0.693/-3.466

H = 12.5 × 0.1999

H = 2.5 hours.

Read more on half-life here: https://brainly.com/question/25750315

Answer:

A

Step-by-step explanation:

La respuesta correcta es .15

Answer:

the answer is 15'2" of the rope that is left

Step-by-step explanation:

Answer:

h=3in  

Step-by-step explanation:

A=a+b

2h

Solving forh

h=2A

a+b=2·13.5

3+6=3in

Answer:

A. [tex] 4\sqrt{6} [/tex]

Step-by-step explanation:

Applying the leg rule which is:

[tex] \frac{Hypotenuse}{leg} = \frac{leg}{part} [/tex]

Hypotenuse = 4 + 8 = 12

Leg = x

Part = 8

Plug in the values

[tex] \frac{12}{x} = \frac{x}{8} [/tex]

Cross multiply

[tex] x*x = 8*12 [/tex]

[tex] x^2 = 96 [/tex]

[tex] \sqrt{x^2} = \sqrt{96} [/tex]

[tex] x = \sqrt{16 * 6} [/tex]

[tex] x = 4\sqrt{6} [/tex]

Answer:Other person is correct. here are the summarized answer for my unit test right triangles and trigonometry unit test

1. side lengths 24, 32, and 40

right

2.  a is right angle m b = 45

14\/2

3.quilt squares hypotenuse 18

9\/2

4.what are the values of the variables in the triangle below  y,  x,  30 degrees, 12\/3

x=18 y=6\/3

5.cos_=9/5

63.26

6. victor drives 300 meters up hill

292.3

7. the students in Mr. Collins class 59 degrees    63 feet

105 feet

8. an airplane pilot        5172 meters

912

9.  to find the height of a pole  140 feet away     4 feet tall    44 degrees

139 feet

10. art piece      21in

191.0

11. a grid shows the positions of a subway     (-7,-1)      (-3,4)

6

12. triangle def m d 44   m d 61       ef 20 in

27.8

13.measure of j     16    103 degrees   11

42

14. triangle fgh   fh 8      fg 13       m f 72 degrees

35.9

15.  in triangle xyz    xy 13     yz  20      xz 25

31

Won't do written part.

Step-by-step explanation:

Answer:

She has run 259.18m

Step-by-step explanation:

Since Dianne is running around the circular track, she is running around the perimeter of the circle.

Now, we know that the perimeter of a circle is given by;P = 2πr

Thus the perimeter of the track = total distance that the man travels = 2 x π x 55 = 345.575 meters

Now,since she has run 3/4 of the distance, thus, she has run;

(3/4) x 345.575 = 259.18m

Answer:

b.

You have more debits than credits.

Step-by-step explanation

Being in the red means that you are in debt so im 90% sure its B

If you get this wrong then i am very sorry.This is my input :)

Answer:

B

Step-by-step explanation:

In accounting, if the debit balance is more than the credit balance on income statement, there is a loss.

If the credit balance is more than the debit balance on income statement, there is a profit.

Option C and D are both not correct because this does not relate to whether a Financial record is accurate or not.

Answer:

20

Step-by-step explanation:

A coefficient is the number that is attached to the variable.

In this case, the number attached to the variable is 20.

Therefore, the coefficient is 20

hope this helps :)

An axiomatic system consists of some undefined terms (primitive terms) and a list of statements, called axioms or postulates, concerning the undefined terms. One obtains a mathematical theory by proving new statements, called theorems, using only the axioms (postulates), logic system, and previous theorems.

Hope this helps have a awesome night/day❤️✨

Step-by-step explanation:

2y

Step-by-step explanation:

16y^5-3/4)

16y²/4)

4y²)1/2

2y

Answer:solutions, search about Complex Numbers

Step-by-step explanation:−2||=−6

−

2

|

x

|

=

−

6

||=−6−2=3

|

x

|

=

−

6

−

2

=

3

The value inside the absolute value brackets could be positive or negative and give a positive result.

()=3

(

x

)

=

3

 OR  −()=3

−

(

x

)

=

3

=3

x

=

3

 OR  =−3

x

=

−

3

On a number line, that would translate to a number line with two dots on it, one at -3 and one at +3.

x equal to 24 and it c