Can you please answer these correctly​

Answer:

B

Step-by-step explanation:

Ecology is the study of ecosystems. That is, ecology is the study of how living organisms interact with each other and with the nonliving part of their environment.

Answer:

The answe is b

Step-by-step explanation:

Because when u calculat,you’ll only get 1 answer.

pls mark BRAINLIEST

Answer:

if y =50 then x = 10 ......... option d

Answer:

y= -5×

Step-by-step explanation:

Y= -5× because -10 ×-5= 50

Answer:

D; is the right answer hope it helps ;)

Step-by-step explanation:

Answer:

the amount of pages typed after 1/3 of an hour is given. Multiply this number by 3 to get the full hour of pages types.

1 5/12 * 3 = 3(1) + 3(5/12)

= 3 5/4

= 4 1/4 pages

Answer:

c

Step-by-step explanation:

Answer:

1/10 units^3

Step-by-step explanation:

3/20 x 2/3 = 6/60 = 1/10 units^3

Answer:

3

Step-by-step explanation:

Answer:

take a better picture can't see what it says

1^6 = 1

11^2 = 11 x 11

11 x 11 = 121

121 + 1 = 122

Answer: The age of the fossilized leaf is 13829 years.

Step-by-step explanation:

Expression for rate law for first order kinetics is given by:

[tex]t=\frac{2.303}{k}\log\frac{a}{a-x}[/tex]

where,

k = rate constant  

t = age of sample

a = let initial amount of the reactant = 100

a - x = amount left after decay process = [tex]\frac{18}{100}\times 100=18[/tex]  

a) for completion of half life:  

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

[tex]t_{\frac{1}{2}}=\frac{0.693}{k}[/tex]

[tex]k=\frac{0.693}{5600years}=0.00012years^{-1}[/tex]

b) for finding the age

[tex]t=\frac{2.303}{0.00012}\log\frac{100}{18}[/tex]  

[tex]t=13829years[/tex]

The age of the fossilized leaf is 13829 years.

The fossilized leaf is 13855 years old.

Half life is given by:

[tex]N(t)=N_o(\frac{1}{2} )^\frac{t}{t_\frac{1}{2} } \\\\Where\ N(t)\ is \ the \ value\ of\ the\ substance\ after\ t\ years,N_o\ is\ the\\original\ value\ and\ t_\frac{1}{2} \ is\ the\ half\ life[/tex]

Given that half life = 5600 years, N(t) = 18% of normal amount = 0.18N₀. Hence:

[tex]0.18N_o=N_o(\frac{1}{2} )^\frac{t}{5600} \\\\0.18=(\frac{1}{2} )^\frac{t}{5600}\\\\ln(0.18)=\frac{t}{5600}ln(0.5)\\\\t=13855\ years[/tex]

The fossilized leaf is 13855 years old.

Find out more at: https://brainly.com/question/4483570

Answer:  

[tex]log_b(w^3y^4)[/tex]

Step-by-step explanation:

To write the expression as a single logarithm, or condense it, use the properties of logarithms.  

1) The power property of logarithms states that [tex]log_ax^r = rlog_ax[/tex]. In other words, the exponent within a logarithm can be brought out in front so it's multiplied by the logarithm. This means that the number in front of the logarithm can also be brought inside the logarithm as an exponent.  

So, in this case, we can move the 3 and the 4 inside the logarithms as exponents. Apply this property as seen below:

[tex]3log_bw+4log_by\\=log_bw^3+log_by^4[/tex]

2) The product property of logarithms states that [tex]log_axy = log_ax+log_ay[/tex]. In other words, the logarithm of a product is equal to the sum of the logarithms of its factors. So, in this case, write the expression as a single logarithm by taking the log (keep the same base) of the product of [tex]w^3[/tex] and [tex]y^4[/tex]. Apply the property as seen below and find the final answer.  

[tex]log_bw^3+log_by^4\\=log_b(w^3y^4)[/tex]

So, the answer is [tex]log_b(w^3y^4)[/tex].

Answer:

c = 20 miles

Step-by-step explanation:

use pythagorean theorum (oof my spelling)

16^2 + 12^2 = 400

square root of 400 is 20

lol :))

Answer:

c=20

Step-by-step explanation:

the answer above me said it was 20 and i got it right

Answer:

y=2x-1.

Step-by-step explanation:

y=mx+c

y=2x-1.

Answer:

look at my question

Step-by-step explanation:

Answer:answer

Step-by-step explanation: we’ll see to put it in a simpler way you are first going to have to joe nuts

Answer:

It is C.

Step-by-step explanation:

So,A triangle is equal to 180 and you would add up the numbers you already have which equal 145.180-145= 35° and thats why the last letter would be 35° in your answer and be correct which would be that m<F=35° is the same as ABC in the last letter. Since,<B is the second letter in ABC and so is <E in DEF and have the same degree that would be the same as well so I hope that helps:)

Answer:

c

Step-by-step explanation:

the angles in a triangle have to add up to 180°

65 + 80 = 145

180-145 = 35

the missing angle is 35°

choice c matches because it has 2 of the same angle measures, which means they all have to be the same

Answer:Length = 200

Breadth=90

perimeter of rectangle

[tex] = 2(l + b) \\ = 2(200 \times 90) \\ = 2 \times 18000 \\ = 63000[/tex]

Hope it helped

PLS mark BRAINLIEST

Answer:

His claim is false.

Step-by-step explanation:

People put nasty fake answers, so I will answer your question here. 16h15 minus 45 minutes is 15h30. If he was gone 48 minutes, he left at 15h27m

Answer:

Part A) About 3 it represents the amount of matches won with 0 months of practic3

Part B) points used = (2,8) (5,12)

equation in slope intercept form: y=[tex]\frac{4}{3}x +3[/tex]

games won after 13 months = about 20

Step-by-step explanation:

Part B work:

points used = (2,8) (5,12)

[tex]\frac{ y_{1} -y_{2} }{x_{1}- x_{2} }[/tex] = slope equation

[tex]\frac{12-8}{5-2}[/tex]= slope equation filled in

[tex]\frac{4}{3}[/tex]=slope

So the equation in slope intercept form:

y=mx+b

mx = slope

b = y intercept

So the equation is:

y=[tex]\frac{4}{3}x +3[/tex]

Games won after 13 months:

months = x

y=[tex]\frac{4}{3}[/tex](13) + 3

4/3 x 13 = 17.3

y=17.3+3=20.3

About 20 games

Answer:

90

Step-by-step explanation:

the forumla of a triangle is base times height, divided by 2 and since it has a height of 12 and a base of 15, and if you multiply that it would give you 180, then divide by 2 since it is half a sqaure, which is 90

Answer:

[tex]3 \sqrt{41}[/tex]

Step-by-step explanation:

[tex]12^2 + 15^2 = x^2 \\x = \sqrt{369} = 3\sqrt{41}[/tex]

Answer:

ya thats the write equation i dont know what the adios say but u got the equation right

Step-by-step explanation:

Answer:

Each orange costs 45 cents

Step-by-step explanation:

3.60 divided by 8 = .45

Answer:

The answer is 0.45 cents

Step-by-step explanation:

We divide 3.60 by 8 and got 0.45.

Have a great day

Answer:

936

Step-by-step explanation:

Because 12%of 2600= 312

or 0.12×2600=312 for the first year

so multiply by 3 to get interest for 3 years

312 × 3 =936

Answer:

If the numbers were the same, they'd both be 61

So, try 60 and 62.

x + x+2 = 122

2x = 120

x = 60

Hope that helps!

Answer:

60 and 62

Step-by-step explanation:

To find the answer we need to set up our problem.

For the two consecutive even integers we can call them x and x+2, as adding 2 to x will give us the next even number.

Then we form our equation:

x+x+2=122

Since we have two x we can combine them into a single term

2x+2=122

We then subtract 2 from both sides

2x=120

Divide by 2

x=60

Find the second number by inserting it into

x+2

60+2=62

Answer Below :)

Step-by-step explanation:

2a = 80,730

2b = 106