See image attached below

Answer: a12 = 1/5120

Step-by-step explanation:

geometric sequence formula: an = a1*r^(n-1)

a1 = 2/5, r= 1/2, n= 12

a12 = 2/5*r^11

a12 = 2/5*1/2048

a12 = 1/5120

==> she can buy 45 notebooks at most.

[tex] \: \: \: \: [/tex]

Answer:

[tex]\textsf{B)}\quad \dfrac{1}{28^2}[/tex]

[tex]\textsf{C)} \quad \dfrac{7^{-2}}{4^2}[/tex]

Step-by-step explanation:

[tex]4^{-2} \cdot 7^{-2}[/tex]

[tex]\textsf{Apply exponent rule} \quad (a^b \cdot c^b)=(ac)^b:[/tex]

[tex]\implies (4 \cdot 7)^{-2}[/tex]

[tex]\implies (28)^{-2}[/tex]

[tex]\textsf{Apply exponent rule} \quad a^{-n}=\dfrac{1}{a^n}:[/tex]

[tex]\implies \dfrac{1}{28^2}[/tex]

-------------------------------------------------------------------------------------------

Also,

[tex]4^{-2} \cdot 7^{-2}[/tex]

[tex]\textsf{Apply exponent rule} \quad a^{-n}=\dfrac{1}{a^n}:[/tex]

[tex]\implies \dfrac{7^{-2}}{4^2}[/tex]

[tex]\\ \rm\Rrightarrow 4^{-2}7^{-2}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{1}{4^2.7^2}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{1}{(4.7)^2}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{1}{28^2}[/tex]

If we break only 4

[tex]\\ \rm\Rrightarrow \dfrac{7^{-2}}{4^2}[/tex]

Option B and C

Answer:

False

False

True

True

True

Step-by-step explanation:

Answer:

False

False

True

True

True

Step-by-step explanation:

up ;)

Answer:

A. No

B. No

C. Yes

D. No

jfzisossyokszkvgtis

[tex]~~~~~~~~~~~~\textit{middle point of 2 points } \\\\ (\stackrel{x_1}{-3}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{5}~,~\stackrel{y_2}{-8}) \qquad \left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right) \\\\\\ \left(\cfrac{ 5 -3}{2}~~~ ,~~~ \cfrac{ -8 + 4}{2} \right)\implies \left(\cfrac{2}{2}~~,~~\cfrac{-4}{2} \right)\implies (1~~,~~-2)[/tex]

you either multipy or add all of the numbers and find the perimeter

Answer:

Below.

Step-by-step explanation:

The center of the circle is at the origin and its radius is √16 = 4.

So set a compass to 4 and draw a circle with the compass point at the origin.

Answer:

98º

Step-by-step explanation:

Since a supplementary angle is 2 angles which equal 180 degrees we would have this angle and 1 more angle that add up to 180:

[tex]82+x=180[/tex]

subtract 82 from both sides

[tex]x=98[/tex]

The true statement about the inequality is that Total sales per day is greater than $250

= 25 + 0.05x

The inequality:

4(25 + 0.05x) > 50

100 + 0.2x > 50

100 - 50 > 0.2x

50 > 0.2x

x > 50/0.2

x > $250

Learn more about inequality:

https://brainly.com/question/25275758

Answer:

C 70.26 in2

Step-by-step explanation:

6 = D

R = D/2

R = 3

A = 3.14 x 3 x 3

A = 3.14 x 9

A = 28.26

The area of the triangle is

A = 6 x 7

A = 42

So

42 + 28.26

70.26 in2

Answer:

4 liters for £3.20

Step-by-step explanation:

we want to maximize quantity for each unit of money spent. if we use mL and p, we want to maximize mL/p

500 mL = 60 p

divide both sides by 60p to get a mL/p value

500 mL/60 p = 50/6 p ≈ 8.3 mL per pence

4 L = £3.20

note:

1000 mL = 1L

divide both sides by 1 L/ 1000 mL

1000 mL / 1 L = 1

1 L / 1000 mL = 1

100 p = £1

divide both sides by 100p / £1

100p / £1 = 1 = £1 / 100p

convert everything to the same units (mL and p) to accurately compare

4 L = £3.20

4L  = 4L * 1 = 4L * 1000 mL / 1 L = 4000 mL. Note that we have two options to choose from -- 1000 mL / 1 L and 1 L / 1000 mL. We choose the first one here because we want the 4L to cancel out with the 1 L

£3.20 = £3.20 * 1 = £3.20  * 100p / £1 = 320 p. note we put the £1 on the bottom so the euros cancel out.

thus,

4 L = £3.20

= 4000 mL = 320p

divide both sides by 320p to get a mL / p value

4000 mL / 320 p = 12.5 mL/p

8.3 mL per pence in the first one

12.5 mL per pence in the second one

the second one has a higher mL per pence, so that is a better value

Answer:

(x - 6)^2 = 48.

Step-by-step explanation:

x2 - 12x - 5 = 7

x2 - 12x = 12

(x - 6)^2 - 36 = 12

(x - 6)^2 = 48

Answer:

39.5

Step-by-step explanation:

1 Triangle; 3

other Triangle; 4.5

Rectangles; 32

Hope This Helps! :)

Answer:

1/5

Step-by-step explanation:

30 - 24 = 6

6 = 6/30

6/30 = 1/5

Answer: 20%

Step-by-step explanation: 30- 24 = 6

6/30 × 100/ 1 = 20%

Answer:

Rectangle

Step-by-step explanation:

The answer you put was a rhombus , which is wrong . if you put the coordinates in you would see that its a rectangle slightly tilted instead of  rhombus , a rectangle has more of a wider side than a rhombus does . please change your answer!

Answer:

Simplify 4/ (square root of 5) 4 √5 4 5 Multiply 4 √5 4 5 by √5 √5 5 5. 4 √5 ⋅ √5 √5 4 5 ⋅ 5 5

Step-by-step explanation:

Answer:

see below

Step-by-step explanation:

Not sure what you are looking for :

15 kg / $8    = 1.875   kg  per dollar

$8 / 15 kg =  .533  dollars per kilogram

The question is an illustration of sample and population, and the estimate of the population of squirrel in the park is 55

The given parameters are:

Marked squirrels = 43

Captured squirrels = 50

Of the 50 captured squirrels, 38 are from the marked squirrels.

This means that the number of unmarked squirrels is:

Unmarked = 50 - 38

Evaluate

Unmarked = 12

The population of the squirrel is then calculated using:

Population = Marked + Unmarked

So, we have:

Population = 43 + 12

Evaluate the sum

Population = 55

Hence, the estimate of the population of squirrel in the park is 55

Read more about population at:

https://brainly.com/question/7301139

#SPJ1

Answer:

Complementary angles

Step-by-step explanation:

Complementary angles because the two angles is shared on a same line as each others.

Answer:

The answer is D.

Step-by-step explanation:

a) Plugging x = 18 gets numerator 0^2/18 = 0 that not continuous.

b) Plugging x = 18 the denomiator becomes a value/0 making it undefined.

c) Plugging x = 18 gets tan(2pi) = 0/1 which is 0

d) f(x) = 36 is should be a straight lines at y =36. I think. Best option is D.

Answer:

The answer is B.

Step-by-step explanation:

I was trying to answer ur question a little bit ago, where it had multiple quesitons, but it had gotten deleted. I saved the answers for you

1st one- B(This question lol) , second one- C, third one- ?, fourth one- C, Fifth one- A.

I wasnt sure about the third one but i got the others...

Hope it helps you :)

Pls mark brainleist :P

`

`

`

w/ <3...

Tori

Answer:

Its 0.5 miles

Step-by-step explanation:

Answer:

1 and 2

Step-by-step explanation:

Answer:

I am not sure

Step-by-step explanation:

I believe if you take and break down what you paid and then it will be easier to figure out the interest

Answer: The answer is five

Step-by-step explanation:

Set y = z

50x + 75 = 65x

Subtract 50x from both sides

50x (-50x) + 75 = 65x (-50x)

75 = 15x

Divide both sides by 15

75 (/15) = 15x (/15)

5 = x

And there we have it, x = 5! So it takes 5 hours of work for each to cost the same.

Answer: (Y - 100)/ 45 =No of hours

where y is the full payment

Step-by-step explanation:

Charges per hour plus visit is 45+100 where 100 Is fixed

2hr is (45 × 2) +100

Payment y for Xhrs= 45X + 100

Y =45X + 100

Y -100 =45X

Y -100/45 = X

Answer:

rain (hydrosphere) falls from clouds in the atmosphere to the lithosphere and forms streams and rivers that provide drinking water for wildlife and humans as well as water for plant growth (biosphere)

Step-by-step explanation:

Answer:

3 inches

Step-by-step explanation:

18/6=3