All categories

2 years ago

PLEASE HELP What is the rule for the sequence with the first four terms below?

Mathematics

1 answer:

ivolga24 [154]2 years ago

3 0

Answer:

A) [First try is correct for all U1 to U4]

Step-by-step explanation:

1. Trying each option

(let x = 1,2,3,4) since it goes from U1 to U4 (Geometric sequence)

A.) 10(-4/5)^x

10(-4/5)^1 = -8

10(-4/5)^2 = 6.4

10(-4/5)^3 = -5.12

10(-4/5)^4 = 4.096

You might be interested in

Before a sale, an item’s price was $38.00; during the sale, it was 15% off. What was the sale price?

Pani-rosa [81]

38 times (1-15%)
$32.3

4 0

2 years ago

Gravel is being dumped from a conveyor belt at a rate of 15 ft3/min, and its coarseness is such that it forms a pile in the shap

gayaneshka [121]

Answer:

0.13 ft/min

Step-by-step explanation:

We are given that

$\frac{dV}{dt}=15ft^3/min$

We have to find the increasing rate of change of height of pile when the pile is 12 ft high.

Let d be the diameter of pile

Height of pile=h

d=h

Radius of pile,r= $\frac{d}{2}=\frac{h}{2}$

Volume of pile= $\frac{1}{3}\pi r^2 h=\frac{1}{12}\pi h^3$

$\frac{dV}{dt}=\frac{1}{4}\pi h^2\frac{dh}{dt}$

h=12 ft

Substitute the values

$15=\frac{1}{4}\pi(12)^2\frac{dh}{dt}$

$\frac{dh}{dt}=\frac{15\times 4}{\pi(12)^2}$

$\frac{dh}{dt}=0.13ft/min$

7 0

3 years ago

How to graph y=-x+4 and the table for it

Soloha48 [4]

Answer:

Here are pictures of the graph and corresponding table. Hope this helps!

Step-by-step explanation:

4 0

2 years ago

A recipe for BBQ sauce calls for 5 tablespoons of ketchup for every 2 tablespoons of brown sugar. The point(1, 2.5) is on the li

Papessa [141]

Answer:

Step-by-step explanation:

I’m so sorry but jones bbq foot massage

5 0

2 years ago

Need answer please !!

Misha Larkins [42]

Answer:

Step-by-step explanation:

Least common denominator is 10

there are 10/10 portions in the whole circle

1/2 = 5/10

2/5 = 4/10

10/10 - 5/10 - 4/10 = 1/10

3 0

2 years ago