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4 years ago

What is the pattern as the exponents decrease of 8

Mathematics

2 answers:

FromTheMoon [43]4 years ago

8 0

Answer:

x - 8

Step-by-step explanation:

If we called the exponents as 'x', it would be:

x - 8 because it decrease by 8

Hope this help you :3

BartSMP [9]4 years ago

5 0

Answer: Divided by 8

Step-by-step explanation:

correct on e d g e n u i t y!

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Solve using law of sines or law of cosines!

malfutka [58]

Answer:

Part 5) The length of the ski lift is $1.15\ miles$

Part 6) The height of the tree is 18.12 m

Step-by-step explanation:

Part 5)

Let

A -----> Beginning of the ski lift

B -----> Top of the mountain

C -----> Base of mountain

we have

$b=0.75\ miles$

$A=20\°$

$C=180\°-50\°=130\°$ ----> by supplementary angles

Find the measure of angle B

Remember that the sum of the interior angles must be equal to 180 degrees

$B=180\°-A-C$

substitute

$B=180\°-20\°-130\°=30\°$

Applying the law of sines

$\frac{b}{sin(B)}=\frac{c}{sin(C)}$

substitute

$\frac{0.75}{sin(30\°)}=\frac{c}{sin(130\°)}$

$c=\frac{0.75}{sin(30\°)}(sin(130\°))$

$c=1.15\ miles$

Par 6)

see the attached figure with letters to better understand the problem

Applying the law of sines in the right triangle BDC

In the right triangle BDC 20 degrees is the complement of 70 degrees

$\frac{BC}{sin(70\°)}=\frac{x}{sin(20\°)}$

$BC=(sin(70\°))\frac{x}{sin(20\°)}$ -----> equation A

Applying the law of sines in the right triangle ABC

In the right triangle ABC 50 degrees is the complement of 40 degrees

$\frac{BC}{sin(40\°)}=\frac{x+15}{sin(50\°)}$

$BC=(sin(40\°))\frac{x+15}{sin(50\°)}$ -----> equation B

Equate equation A and equation B and solve for x

$(sin(70\°))\frac{x}{sin(20\°)}=(sin(40\°))\frac{x+15}{sin(50\°)}\\\\2.7475x=0.8391(x+15)\\\\2.7475x=0.8391x+12.5865\\\\2.7475x-0.8391x=12.5865\\\\x=6.60\ m$

Find the value of BC

$BC=(sin(70\°))\frac{6.6}{sin(20\°)}$

$BC=18.12\ m$

therefore

The height of the tree is 18.12 m

5 0

4 years ago

Last year there were 1,435 8thgrade students enrolled at your school. This year there are 1,220. What is the percent change in t

julsineya [31]

Hi there!

Answer:

-14.98%(or -15%).

Step-by-step explanation:

1)To find the percent decrease,all you have to do is minus the original number from the decreased amount so:

1435-1220= 215

2)Then you divide this answer by the original number again so:

215÷1435= 0.1498

3)Then you times the decimal by 100 so:

0.1489x100= -14.98%(or -15%).

Hope this helps!

7 0

4 years ago

Robbin is using the recipe to make chicken noodle soup. He plans to make 6 batches of the soup. He has 2/3 teaspoon of black pep

weqwewe [10]

That is 4 teaspoons in all

5 0

3 years ago

Halla el eje de simetría y el vértice de la parábola de cada función cuadrática. Luego grafica la función cuadrática

oksano4ka [1.4K]

(0,3) is the correct answer to your question

5 0

3 years ago

What is the product? 7•(—4) • (—6) 1. —168 2. —3 3. 17 4. 168

Zolol [24]

Answer:

168

Step-by-step explanation:

7*-4=-28

-28*-6=168

5 0

3 years ago

Read 2 more answers