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2 years ago

What is the product? 4k+2/k^2-4*k-2/2k+1

1 answer:

7 0

$\bf \cfrac{4k+2}{k^2-4}\cdot \cfrac{k-2}{2k+1}\implies \cfrac{2(2k+1)}{k^2-2^2}\cdot \cfrac{k-2}{2k+1}\implies \cfrac{2\underline{(2k+1)}}{\underline{(k-2)}(k+2)}\cdot \cfrac{\underline{k-2}}{\underline{2k+1}}
\\\\\\
\cfrac{2}{k+2}\cdot \cfrac{1}{1}\implies \cfrac{2}{k+2}$

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The relationship between the number of pencils and the number of pens in Sophie’s pencil case can be represented using the ratio

tekilochka [14]

ratio of 6:10, if you divide both numbers by 2 you get a ratio of 3:5

multiply by 2 you get 12:20

multiply by 1.5 you get 9:15

D is not equivalent

4 0

2 years ago

Somebody help me plz

larisa86 [58]

A is the correct answer

8 0

3 years ago

Read 2 more answers

A bottling plant produces bottles of 500 ml at the production rate of 10,000 bottles per hour. An inspector randomly picks up 10

galben [10]

Answer:

e.none of these

Step-by-step explanation:

Computations For CC for Fraction defective

Sample No d p=d/100

1 0 0

2 0 0

3 2 0.02

4 1 0.01

5 0 0

6 1 0.01

7 2 0.02

8 0 0

Total 0.06

$\overline{p} =\frac{1}{k}\sum p=\frac{0.06}{8} =0.0075$

$\overline{q} =1- 0.0075= 0.9925$

3 sigma control limits for p chart are given by:

$\overline{p} \pm 3\sqrt{\overline{p}\overline{q}/n}\Rightarrow 0.0075\pm 3\sqrt{\frac{0.0075*0.9925}{100}}$

$= 0.0075\pm0.0259\Rightarrow ( 0.0334,0 )$

hence option e is correct

6 0

2 years ago

Jodi has two bank accounts. Her parents started Account A for her. It currently has $100 in it, and Jodi deposits $20 into it ea

Law Incorporation [45]

Answer:

(f+g)(x) = 60x + 400

Step-by-step explanation:

Given :

Amount in account A:

f(x) = 20x + 100

Amount in account B :

g(x) = 40x + 300

Total amount in Account A and B:

f(x) + g(x) = (20x + 100) + (40x + 300)

(f+g)(x) = (20x + 40x) + (100 + 300)

(f+g)(x) = 60x + 400

6 0

2 years ago

Which exponential function goes through the points (1,8) and (4,64)?

vova2212 [387]

Plug in (4,64) into each answer choice.

A) 4(2)^x
64 =4(2)^4
64 = 4(16)
64 = 64

Answer choice A is correct.

B) f(x) = 2(4)^x
64 = 2(4)^4
64 = 2(256)
64 ≠ 512

Answer choice B is incorrect.

C) f(x) = 4(2)^{-x}
64 = 4(2)^{-4}
64 = 4(-0.0625)
64 ≠ 0.25

Answer choice C is incorrect.

D) f(x) = 2(4)^{-x}
64 = 2(4)^{-4}
64 = 2(0.00390625)
64 ≠ 0.0078125

Answer choice D is incorrect.

Your answer is B<span>) f(x)=2(4)^x</span>

4 0

2 years ago