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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....

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

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3 years ago

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Sliva [168]

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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

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Read 2 more answers

CAN YALL PLS HELP !!!

JulijaS [17]

Answer:

the first step is wrong

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zhannawk [14.2K]

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