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4 years ago

What are the first, fourth and eighth terms for A(n)=-2*2^n-1

1 answer:

3 0

The first term is -2. The fourth term is -16. And the last term is -256.
To find them, lets say the first term, replace n with 1. You can use this idea to find out the rest (which I've already done, but just to explain to you.).

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Given the function h(x) = 4x, Section A is from x = 0 to x = 1 and Section B is from x = 2 to x = 3.

morpeh [17]

Section A) The AROC for Part A is 4.
h(x) = 4 * 1. 4 is your answer.
Section B) The AROC for Part B is 1.
h(x) = 4 * 1. 4 is your answer.

Part A: (Above)

Part B: There is no greater average change, both X's AROC is 4.

A.R.O.C: (Average Rate of Change)

I think this is right. Not 100% though

6 0

4 years ago

would someone help me out with this question? I got it wrong the first time but I don't understand how.

OleMash [197]

Answers:

Choice 2) Angle ABC is bisected by ray BD.

Choice 3) BC = 1/2 AC

Choice 5) 2*(angle DBC) = angle ABC

================================================

Explanation:

Since B is the midpoint of AC, this means that AC is cut in half to form the smaller equal pieces AB and BC

We can then say

AB+BC = AC

BC+BC = AC

2BC = AC

BC = (1/2)*AC

which shows why choice 3 is one of the answers

----------------------

Angle ABD is shown to be 90 degrees. Let's say we didn't know angle DBC is also 90. Lets call it x

(angle ABD) + (angle DBC) = 180

90 + x = 180

x = 180 - 90

x = 90

So angle DBC is also 90.

We can see that the 180 degree angle (ABC) is cut in half into two smaller 90 degree angles (ABD and DBC). Therefore, angle ABC has been cut in half and that's why choice 2 is another answer.

------------------------

Using the angle addition postulate, we know that,

(angle ABD) + (angle DBC) = angle ABC

(angle DBC) + (angle DBC) = angle ABC

2*(angle DBC) = angle ABC

Showing why choice 5 is the third answer.

------------------------

Choice 1 isn't true since ray BD helps form angle DBC.

Choice 4 isn't true because there isn't a tickmark on segment BD to indicate it's the same length as BC.

8 0

3 years ago

Graph the solution set to the system Y<15-0.41

Vlad [161]

Answer:

The graph in the attached figure

Step-by-step explanation:

The correct question is

Graph the solution set to the system

Y<(1/5)x-0.41

we have

$y$

The solution is the shaded area below the dashed line $y=\frac{1}{5}x-0.41$

The slope of the dashed line is positive $m=\frac{1}{5}$

The y-intercept of the dashed line is (0,-0.41)

The x-intercept of the dashed line is (2.05,0)

To find out the solution set, draw the intercepts and connect them to plot the dashed line, and shade the area below the dashed line

The graph in the attached figure

8 0

3 years ago

What is another way to say 14 over 16 in fractions ( preferably in lowest number example 4 over 8 equals 1 over 2 both are halve

Degger [83]

Answer:

7/8

Step-by-step explanation:

The greatest common factor in each is two so you divide both the numerator and the denominator by two to simplify the fraction

4 0

3 years ago

How do you solve this equation -6x + 7y =13 and -6x +8y =20 using elimination

ohaa [14]

Answer:

x=6,y= 7

Step-by-step explanation:

-6x +7y= 13

-6x+8y=20

-y = -7

divide through by -1

y =7

sub y= 7 in equation 1

then x= 6

8 0

3 years ago