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klio [65]
3 years ago
12

Help me please i don't know what i'm doing please help

Mathematics
1 answer:
UNO [17]3 years ago
8 0

Answer: -1/9

Step by step explanation:

The common difference of an arithmetic sequence can be found by picking 2 consecutive terms, and subtracting the second from the first. For example, if I chose the terms 2 and 1 8/9, I would find the common difference by:

1 8/9 - 2, which is equal to -1/9.

You can confirm this by picking another pair of consecutive terms. Let's pick 1 7/9 and 1 2/3:

1 2/3 - 1 7/9 = -1/9, as 1 2/3 = 1 6/9, so 1 6/9 - 1 7/9 = -1/9

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Which of the following expressions is equivalent to a9 - b9?
irina1246 [14]
When you have the power multiplied to another power you have to multiply 
so 
(a^3)^3 - (b^3)^3 = a^9 - b^9

A is correct. 

B is incorrect because when you multiply the exponents you get a^18 - b^18 

C is incorrect because when you distribute the 2 you get a^6 - b^6 

D is correct too

8 0
3 years ago
P(A) = 0.44 What are the odds for A?
damaskus [11]
P(A)=0.44=\frac{44}{100}=\frac{11}{25}\\\\11\ odds\ on\ 25
8 0
3 years ago
Read 2 more answers
Rewrite the Product in Exponential Form : a. a. a. b. b. b. b ​
Rudik [331]

Answer:

a^3b^4

Step-by-step explanation:

You have 3 a's, so that would be

a^{3}

and you have 4 b's so that would be

b^4

so putting it together gives you

a^3b^4

4 0
3 years ago
Write the equation of the line that passes through (3, 4) and (2, −1) in slope-intercept form. (2 points) a y = 3x − 7 b y = 3x
sashaice [31]

Answer: y = 5x − 11

Step-by-step explanation:

The equation of a straight line can be represented in the slope-intercept form, y = mx + c

Where c = intercept

Slope, m =change in value of y on the vertical axis / change in value of x on the horizontal axis represent

change in the value of y = y2 - y1

Change in value of x = x2 -x1

y2 = final value of y

y 1 = initial value of y

x2 = final value of x

x1 = initial value of x

The line passes through (3,4) and (2, -1),

y2 = - 1

y1 = 4

x2 = 2

x1 = 3

Slope,m = (- 1 - 4)/(2 - 3) = - 5/- 1 = 5

To determine the y intercept, we would substitute x = 3, y = 4 and m= 5 into

y = mx + c. It becomes

4 = 5 × 3 + c

4 = 15 + c

c = 4 - 15 = - 11

The equation becomes

y = 5x - 11

8 0
3 years ago
True or false:<br> the following equation is in standard form. <br> (x - 4.2)^2 - 3 = 0
natita [175]

Answer:

false

Step-by-step explanation:

standard form cannot contain fractions or decimals

3 0
2 years ago
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