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pashok25 [27]
3 years ago
15

Janet said that the common difference in the sequence below is -2. Is she correct? Justify your answer using complete sentences

and proper grammar.
1, -2, 4, -8....
Mathematics
2 answers:
Daniel [21]3 years ago
7 0
Yes Janet is correct since 1*-2=-2, -2*-2=4, and 4*-2=-8. The sequence just keeps going.
d1i1m1o1n [39]3 years ago
4 0
She is incorrect since -1 - - 2 is 3<span />
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Shawna and her best friend Keisha go shopping. The function p(t) = 3x +2x-4x2+ 21 represents how much money each girl spent base
NNADVOKAT [17]

Answer:

\$30

Step-by-step explanation:

we have

p(t)=3x+2x-4x^{2}+21

<em>Find the amount of money that each girl spent</em>

For t= 2 hours

p(2)=3(2)+2(2)-4(2)^{2}+21

p(2)=10-16+21

p(2)=\$15

<em>Find the amount of money that they spend together</em>

Multiply by 2 the amount of money that each girl spent

(2)\$15=\$30

3 0
3 years ago
Identify the correct measure of the Thumbtack to the nearest 1/8 inch ​
Sliva [168]

it’s the 3rd one. so.. 5/8

8 0
3 years ago
Simplify the following expression. 4a^-2b<br><br> A.) b/4a^2<br> B.)4b/a^2<br> C.)1/4a^b2
Sergio [31]
ANSWER

The correct answer is B

\frac{4b}{ {a}^{2} }


EXPLANATION

The given exponential expression is

4 {a}^{ - 2} b

We can rewrite this as,

4b \times  {a}^{ - 2}

We need to simplify to obtain a positive index, so we apply the following property,


{a}^{ - m}  =  \frac{1}{ {a}^{m} }

This implies that,


4b \times  {a}^{ - 2}  = 4b \times  \frac{1}{ {a}^{2} }

This will finally simplify to,

4b \times  {a}^{ - 2}  =\frac{4b}{ {a}^{2} }


Therefore the correct answer is B
6 0
3 years ago
Read 2 more answers
CAN YALL PLS HELP !!!
JulijaS [17]

Answer:

the first step is wrong

it should be 4(x-4)/(x+1)(x-4) - (x+2)/(x-4)(x+1)

8 0
3 years ago
The ratio of red to green tiles in a pattern is 2:3 what fraction of the tiles are green
zhannawk [14.2K]
The answer is 2/10


your just reducing the ratio
3 0
3 years ago
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