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4 years ago

8. There are 3 water slides in the park, arranged from shortest to tallest. The

Mathematics

2 answers:

goldenfox [79]4 years ago

8 0

The height: 27
3x3x3
AKA the power/or exponent relation would be 3 to the power of 3

Valentin [98]4 years ago

4 0

Answer:

Step-by-step explanation:

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On what date did Thomas jefferson submit the Declaration of Independence to peers for editing?

PSYCHO15rus [73]

Answer:

C. June 28, 1776

Step-by-step explanation:

Submitting the Declaration of Independence to the Continental Congress, June 28, 1776. This image is considered one of the most realistic renditions of this historical event.

7 0

4 years ago

Read 2 more answers

Based on survey results, the mean amount of credit card debt for U.S. adults under 35 is $8,724. This point estimate would be un

Maslowich

Answer:

B. A random sample of 2,800 U.S. adults under 35.

Step-by-step explanation:

To have an unbiased and accurate sample, the sample should be representative of the population about which we are inferring.

Also, the bigger the sample size, the less margin of error we will have in the inference.

As the population in this survey is about the US adults under 35, the sample should be selected from this group.

From the options that select from this population, the largest sample is 2,800.

So the answer is Option B.

7 0

3 years ago

The area of a square in 169 square centimeter. What's its perimeter? Pls explain how you found the answer

Lubov Fominskaja [6]

Answer:

Since the area of the square is 169 you think what times what equals 169 which is 13, so 13*13=169,

which makes your length and width 13 so 13*4= 52centimeters

52 centimeters

Step-by-step explanation:

4 0

4 years ago

Use the distributive property to write the following expression in expanded form. 8(a+3b)

FinnZ [79.3K]

Answer:

8a+24b

Step-by-step explanation:

4 0

3 years ago

A plane flew 720 mi with a steady 30 mi/h tailwind. The pilot then returned to the starting point, flying against that same wind

NNADVOKAT [17]

Answer:

Plane's speed is 150 miles/hour

Step-by-step explanation:

Let the plane's airspeed be x

Speed of wind is 30 miles/hour

When a plane flew with the wind , Speed = (x+30)

So, the speed plain with wind on going = (x+30)

Since we are given that on returning plane fly against the wind .

So,When a plane flew against the wind , Speed = (x-30)

So, the speed plain against wind on returning = (x-30)

Distance = 720 miles .

$Time = \frac{Distance}{Speed}$

So, time on going $=\frac{720}{(x+30)}$

Time on returning $=\frac{720}{(x-30)}$

Now we are given that the total time for the whole trip (going + returning) = 10 hours.

So, $\frac{720}{(x+30)}+\frac{720}{(x-30)}=10$

$\frac{720x-21600+720x+21600}{(x+30)(x-30)}=10$

$720x-21600+720x+21600=10(x+30)(x-30)$

$720x+720x=10(x+30)(x-30)$

$1440x=10(x^2 -[30]^2)$

$144x=x^2 -900$

$x^2-144x -900=0$

$x^2-150x+6x -900=0$

$x(x-150)+6(x -150)=0$

$(x-150)(x+6)=0$

$x= 150,x= -6$

So, the plane's speed is 150 miles/hour

4 0

3 years ago