All categories

3 years ago

Please help, please help

Mathematics

1 answer:

Stells [14]3 years ago

6 0

Answer:

-14 F

Step-by-step explanation:

-13-3-2-6+7 = -14

You might be interested in

Identify the sequence graphed below and the average rate of change from n = 1 to n = 3.

dsp73

Answer:

The required sequence is $a_n=20(\frac{1}{2})^{n-1}$ . The average rate of change from n = 1 to n = 3 is -7.5.

Step-by-step explanation:

From the given graph it is clear that the sequence is a GP because the all terms are half of their previous terms.

Here, $a_2=10,a_3=5,a_4=2.5,a_5=1.25$

$r=\frac{a_3}{a_2}=\frac{5}{10}=\frac{1}{2}$

The common ratio of GP is 1/2.

$r=\frac{a_2}{a_1}$

$\frac{1}{2}=\frac{10}{a_1}$

$a_1=20$

The first term of the sequence is 20.

The formula for sequence is

$a_n=a(r)^{n-1}$

Where a is first term and r is common difference.

The required sequence is

$a_n=20(\frac{1}{2})^{n-1}$

The formula for rate of change is

$m=\frac{f(x_2)-f(x_1)}{x_2-x_1}$

The average rate of change from n = 1 to n = 3 is

$m=\frac{f(3)-f(1)}{3-1}$

$m=\frac{5-20}{3-1}$

$m=\frac{-15}{2}=-7.5$

Therefore the required sequence is $a_n=20(\frac{1}{2})^{n-1}$ . The average rate of change from n = 1 to n = 3 is -7.5.

8 0

3 years ago

Read 2 more answers

A number added to itself is one

Ivenika [448]

The number would be .5 I'm pretty sure

6 0

3 years ago

Pls help me answer this question i need it asap. This is a good offer :)

tensa zangetsu [6.8K]

Answer:

The product is 21/32.

Step-by-step explanation:

Write the product:

=> 2 5/8 x 2/8

Convert it to improper fraction:

=> 21/8 x 2/8

Multiply:

=> 42/64

Simplify:

=> 21/32

Hence, the product is 21/32.

Hoped this helped.

$BrainiacUser1357$

7 0

3 years ago

Read 2 more answers

LEARNING TASK 1

umka21 [38]

Answer:

Please where are the boxes

3 0

3 years ago

If Martha and Howard are 5 hours into the marathon, how far has each person run?

vova2212 [387]

Answer: The Answer is 10

Step-by-step explanation:

8 0

3 years ago