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3 years ago

Which of the following is a function equivalent to f(x) = 5(1.9)3x?

Mathematics

1 answer:

scoundrel [369]3 years ago

7 0

The answer should be B.

5(6.86x)

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Factor 2k^2 - k - 3 A: (2k-3)(k+1) B: (k-1)(2k+3) C: (2k-1)(k+3) D: (k-3)(2k+1)

Art [367]

Answer:

Step-by-step explanation:

Given

2k² - k - 3

Consider the factors of the product of the k² term and the constant term which sum to give the coefficient of the k- term.

product = 2 × - 3 = - 6 and sum = - 1

The factors are + 2 and - 3

Use these factors to split the k- term

2k² + 2k - 3k - 3 ( factor the first/second and third/fourth terms )

= 2k(k + 1) - 3(k + 1) ← factor out (k + 1) from each term

= (2k - 3)(k + 1) → A

4 0

3 years ago

a businesswoman sells a bag for $52.32, thereby making a profit of 9% on the cost of her. calculate the selling price the busine

Veronika [31]

Answer: $57.6

Step-by-step explanation:

Given : A businesswoman sells a bag for $52.32.

Let cuurent selling price : SP = $52.32

As they are making 9% profit now.

That means SP= Cp +0.09 CP , where Cp is the cost price of bag.

i..e $52.32=Cp(1+0.09) \ \text{[Substituted value of SP in LHS and taking Cp common outside in RHS]}$

$\Rightarrow\ 52.32=Cp(1.09)\Rightarrow\ CP=\dfrac{52.32}{1.09}=48$

i..e Cost price of bag = 48

Selling price to gain 20% profit = Cp+0.20CP

= CP(1+0.20)

=48 (1.20)

= 57.6

Hence, the selling price the businesswoman should ask in order to make 20% profit = $57.6

8 0

3 years ago

Jill was solving a system using the elimination method.After she added the equations together,she got 5=7.What does this mean fo

harkovskaia [24]

Answer:

It means the system does not have a solution

Step-by-step explanation:

5 0

2 years ago

Select the correct answer from the drop-down menu. Fill in the missing number in the equation.

noname [10]

Answer:

Step-by-step explanation:

a A + b A where A is a matrix and a and b are scalars

( a+b) A

3+5 $\left[\begin{array}{cc}-1&2\\4&-5\end{array}\right]$ = 8 $\left[\begin{array}{cc}-1&2\\4&-5\end{array}\right]$

7 0

3 years ago

Someone please help me PLEASE. With explanations.

Nadusha1986 [10]

Answer:

hlo

buddy

msg me on

navneet175285

Step-by-step explanation:

njkmmnu

3 0

3 years ago