Evaluate the expression

Answer:

the second one

Step-by-step explanation:

qudrant lv

Step-by-step explanation:

she painted half of the still to be painted area.

after the first weekend there were 800 of 1600 ft² painted, and therefore 1600 - 800 = 800 ft² left to be painted.

on the second weekend she then painted half of that :

800 / 2.

that means she painted 800/2 = 400 ft², and that left 800 - 400 = 400 ft² to be painted on the following weekends.

if we look in detail, we find the starting 800 ft² of the second weekend are already the result of the first weekend.

800 = 1600 / 2

so,

800 / 2 = 1600 / 2 / 2 = 1600 / 2² = 1600 / 4.

and the same principle goes on weekend after weekend.

therefore, the expression for the nth weekend could be

1600 × (1/2)^n ft²

that means, she painted

on the 1st weekend : 1600 × 1/2 = 800 ft²

on the 2nd weekend : 1600 × 1/4 = 400 ft²

on the 3rd weekend : 1600 × 1/8 = 200 ft²

on the 4th weekend : 1600 × 1/16 = 100 ft²

...

that also means : she will never be finished, as she always paints only half of what is still left open, and that leaves always some part open. it will be tinier and tinier over time, but never 0.

Answer:

its drawn

Step-by-step explanation:

3 3/4 dozen (A)

Answer:

3 3/4

Step-by-step explanation:

8 3/4 beads dozen beads, uses 3 1/4 beads for necklace, 1 3/4 beads for necklace so she has used 3 1/4 + 1 3/4 beads which is 5 so 8 3/4 - 5 = 3 3/4

Answer:

5 feet away

Step-by-step explanation:

It is a Pythagorean Triple.

The hypotenuse is 13 feet and one of the sides is 12 feet. To find the length of the base, use the Pythagorean Theorem.

13^2=12^2+c^2

169=144+c^2

c^=25

c=5

Answer:

When the selling price and the cost price of a product is given, the profit can be calculated using the formula, Profit = Selling Price - Cost Price. After this, the profit percentage formula that is used is, Profit percentage = (Profit/Cost Price) × 100.

Step-by-step explanation:

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Answer:

30°

Step-by-step explanation:

y+30° +4y =180° (angles on a straight line equal 180°)

5y+30° =180°

5y= 180° - 30°

5y = 150°

divide both sides by 5

5y/5 = 150/5

y= 30°

Answer:

A) negative strong correlation B ) negative weak correlation C) no relationship

Step-by-step explanation:

draw a line if these points gather around a line there is a relationship . since the slope will be negative by drawing a straight . Line in the A and B graphs , we according to the will see if it is week and strong according point distribution that will have a negative correlation .C for ) dots scattered no relationship

Answer:

D) 5/3

Step-by-step explanation:

1. Look at the emphasized points of the line.

2. Count how many units up you have to go to get from the lower point to the upper point. That is your top number.

3. Count how many units right you have to go to get from the lower point to the upper point. That is your bottom number.

Answer: D

Step-by-step explanation:

Answer:

81

Step-by-step explanation:

as x+y is 180

- x-y is 18

2x is 198

x is 99

180-99 is 81

Answer: 113.04 ft

Step-by-step explanation:

C = 2πrC = 2x18x3.14

C=113.04

so Im not sure about how an equation for this would look but im assuming her mom doesnt pay unless a full 5 is completed, in that case her mom donates $1.6, in the case less than 5 is still donated for we make .16 * 12 which is $1.92

Answer:

75

Step-by-step explanation:

2(b)(c)^2

= 2 (1.5)(5)^2

= 3(25)

= 75

If the function is translated 4.5 units to the left to createe the graph of function g(x), hence the resuting function will be g(x) = (x + 4.5)^2

Given the function expressed as
f(x) = x^2

If the function is translated 4.5 units to the left to createe the graph of function g(x), hence the resuting function will be:

g(x) = (x + 4.5)^2

Note that translation to the left means addition of the factor

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Answe

Step-by-step explanation:

q

Answer: 252

Step-by-step explanation:

Answer:

area=length x breath

length(L)=21

Breath(B)=12

area(A)=L×B

21×12=252

Answer:

C

Step-by-step explanation:

291.34 - 200.74 is 90.60. 90.60/30.20 = 3.

Answer:

12

Step-by-step explanation:

3 person, devide total budget by 5, each person's share would be £12

Answer:

7 and 9

Step-by-step explanation:

both 7 and 9 occur 3 times in this sequence of numerals, thus resulting in a bimodal solution

Answer:

[tex]\displaystyle 44\:cm. = P \\ 121\:cm.^2 = A[/tex]

Step-by-step explanation:

All angles and edges are congruent in a square, so first, find the total boundary by multiplying the length of the edge by 4:

[tex]\displaystyle 4l = P \\ 4[11] = P \\ \\ 44 = P[/tex]

Now, for the area, you square the length of the edge:

[tex]\displaystyle s^2 = A \\ 11^2 = A \\ \\ 121 = A[/tex]

I am joyous to assist you at any time.

we know angles A and B are supplementary, thus their sum is 180°.

[tex]\stackrel{\measuredangle A}{(2x+26)}~~ + ~~\stackrel{\measuredangle B}{(x+25)}~~ = ~~180\implies 3x+51=180\implies 3x=129\\\\\\x=\cfrac{129}{3}\implies x=43~\hspace{10em}\stackrel{\measuredangle B = 43 + 25}{68}[/tex]

The measure of angle m∠B = 112°

The supplementary angles are defined as when pairing of angles addition to 180° then they are called supplementary angles. There are two types of supplementary angles.

Supplementary angles have a sum of 180°

Therefore, we can add the expressions for Angles A and B and set their sum equal to 180.

( 2x+26 ) + ( x+25 ) = 180

Now we can combine like terms and apply the operations to find the value of x:

⇒ ( 2x+26 ) + ( x+25 ) = 180

⇒ 3x + 51 = 180

⇒ 3x  = 180 - 51

⇒ 3x  = 129

⇒ x = 129/3

⇒ x = 43

Then Angle B will have a measure of x+25 = 43 + 25 = 68°

m∠ B = 112°

The measure of Angle A will be :2x+26  = 2(43) + 26 = 112°

m∠A = 68°

Thus, the measure of angle m∠B = 112°

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The function of the number of penguins is an exponential function

The penguins are going to find a new home in 2015

The equation of the function is given as:

[tex]P(t) = 24(1.231)^t[/tex]

When there are 70 penguins, the equation becomes

[tex]24(1.231)^t =70[/tex]

Divide both sides by 24

[tex]1.231^t =2.917[/tex]

Take the logarithm of both sides

[tex]t\log(1.231) =\log(2.917)[/tex]

Divide both sides by log(1.231)

[tex]t =5[/tex]

The time is 5 years from 2010.

So, we have

Year = 2010 + 5

Year = 2015

Hence, the penguins are going to find a new home in 2015

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6.35 is the same distance from 6.3 as it is from 6.4

it is exactly between the 2 numbers and 0.05 away from either one

Answer:

1 is the answer. Have a great day!!!

Answer:

1

Step-by-step explanation:

You can only split it diagonally without unevenly splitting it.

Answer:

that is the correct answer

Answer:

is 2 and 3 opción (m+4)^2 (m+4) (m+4) you welcome

The margin of error for 324 adults surveyed with 1.6 standard deviations is 0.1742.

The margin of error can be defined as the amount of random sampling error in the results of a survey. It is given by the formula,

[tex]\text{MOE}_{\gamma}=z_{\gamma} \times \sqrt{\frac{\sigma^{2}}{n}}[/tex]

[tex]\text{MOE}[/tex] = margin of error

[tex]\gamma[/tex] = confidence level

[tex]z_{\gamma}[/tex] = quantile

σ = standard deviation

n = sample size

As it is given that the sample size of the survey is 324, while the standard deviation of the survey is 1.6.

We know that the value of the z for 95% confidence interval is 1.96. Therefore, using the formula of the standard of error we can write it as,

[tex]\text{MOE}_{\gamma}=z_{\gamma} \times \sqrt{\dfrac{\sigma^{2}}{n}}\\\\\text{MOE}_{\gamma}=1.96 \times \sqrt{\dfrac{1.6^{2}}{324}}\\\\\text{MOE}_{\gamma}=0.1742[/tex]

Hence, the margin of error for 324 adults surveyed with 1.6 standard deviations is 0.1742.

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