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3 years ago

7

Look at the following picture.

1 answer:

KatRina [158]3 years ago

4 0

I think you do trig do you know how to do that

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How to factor this problem with negative exponents? -4x^-4-3x^-2+1=0

Nat2105 [25]

$-4x^{-4}-3x^{-2}+1=0\\
-4x^{-4}-4x^{-2}+x^{-2}+1=0\\
-4x^{-2}(x^{-2}+1)+1(x^{-2}+1)=0\\
-(4x^{-2}-1)(x^{-2}+1)=0\\
4x^{-2}-1 =0 \vee x^{-2}+1=0\\
4x^{-2} =1 \vee x^{-2}=-1\\
x^{-2}=\frac{1}{4} \vee \frac{1}{x^2}=-1\\
\frac{1}{x^2}=\frac{1}{4}\\
x=-2 \vee x=2
$

7 0

3 years ago

Choose the method to solve the problem below: There are members on a board of directors. If they must form a subcommittee of mem

shepuryov [24]

Answer:

b. 56

Step-by-step explanation:

Please consider the complete question.

There are 8 members on a board of directors. If they must form a subcommittee of 3 members, how many different subcommittees are possible?

We will use combinations for solve our given problem.

$^nC_r=\frac{n!}{r!(n-r)!}$ , where,

n = Number of total items,

r = Items being chosen at a time.

For our given scenario $n=8$ and $r=3$ .

$^8C_3=\frac{8!}{3!(8-3)!}$

$^8C_3=\frac{8!}{3!\cdot 5!}$

$^8C_3=\frac{8\cdot7\cdot6\cdot5!}{3\cdot2\cdot1\cdot 5!}$

$^8C_3=8\cdot7$

$^8C_3=56$

Therefore, 56 different subcommittees are possible and option 'b' is the correct choice.

4 0

3 years ago

The day the crayons quit author

Murrr4er [49]

Answer:

cran

Step-by-step explanation:

7 0

3 years ago

Riya had spent 1/4 of her money on chocolates and 1/8 on pizza and has $40 left how much money did she have in the beggining

salantis [7]

Answer:

$64

Step-by-step explanation:

Remaining money = 1 - fraction spent

Remaining money = 1 - (1/4 + 1/8)

Remaining Money = 1 - 3/8

Remaining Money = 5/8

$40 = 5/8 of Starting amount

Starting amount = $40 * 8/5

Starting amount = $64

3 0

3 years ago

suppose a study estimated that 78% of the residents of a town (with an error range plus/minus12 percentage points at 95% confide

abruzzese [7]

the Answer is 69% -Apex

4 0

3 years ago

Read 2 more answers