1 year ago

This is really confusing pls help! :)

Mathematics

2 answers:

Lisa [10]1 year ago

8 0

The answer is an=3n+1 you are welcome

stellarik [79]1 year ago

4 0

Number of cubes increases by 3 for each term.

an= 3n+1

You might be interested in

Which functions have a removeable discontinuity? Check all that apply.

bija089 [108]

Answer:

It already shows the answers.

Step-by-step explanation:

I'm pretty sure you already submitted. The ones with check marks are correct and the ones with x marks are incorrect.

3 0

2 years ago

Find the exact value of cos A in simplest radical form.

sergeinik [125]

S O/H C A/H T O/A

You're finding cos - so take the adjacent side and hypotenuse which is 10 over 12

Then take 10 divided by 12 cos

A = 0.1

3 0

2 years ago

14cm 28 what is the length of side x

Neko [114]

Answer:

28-14cm=14 or 28÷2=14

5 0

2 years ago

A hot-air balloon is 160 ftabove the ground when a motorcycle (traveling in a straight line on a horizontal road) passes dire

Charra [1.4K]

Answer:

73.77 ft/s

Step-by-step explanation:

Let's imagine this situation as a right triangle where the distance between the two points is the hypotenuse.

-Applying Pythagoras theorem:

$z^2=x^2+y^2\\\\z=\sqrt{x^2+y^2}\\\\x=dx*t+x_i, x_i=0\\\\y=dy*t+y_i\\\\y_i=160\ ft$

#Take the derivative of the first equation and solve for $dz$ :

$d(z^2=x^2+y^2)\\\\2z*dz=2x*dx+2y*dy\\\\dz=\frac{x*dx+y*dy}{z}\\\\dz=\frac{x*dx+y*dy}{\sqrt{x^2+y^2}}\\\\\\dz=\frac{dx^2*t+dy(dy*t+160)}{\sqrt{(dx*t)^2+(dy*t)}}$

#We then substitute the values given in the question to solve for $dz$ :

$dz=\frac{7*66^2+14(14*7+160)}{\sqrt{(66*7)^2+7*14+160}}\\\\=73.78$

Hence, the rate of change of the distance between the motorcycle and the balloon 7 seconds later is 73.77 ft/s

3 0

3 years ago

The population in the trapezoid-shaped region shown is about 7000 people. How many people are there per square mile?

svlad2 [7]

Answer:

250

Step-by-step explanation:

14 x 4 = 56

56 divided by 2 = 28

<h2>7000 divided by 28 = 250 </h2>

8 0

2 years ago