2 years ago

Pls help !!! pleaseee.

Mathematics

1 answer:

ladessa [460]2 years ago

8 0

I guess B. That statement is grammatically incorrect.

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5k-2(3k + 4) = 5x + 4<br> help?

vazorg [7]

Use distributive property
5k - 6k -8 = 5x + 4
Combine like terms
-k - 8 = 5x + 4
add 8 to both sides
-k = 5x + 12
k = -5x- 12

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2 years ago

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g Disco Fever is randomly found in one half of one percent of the general population. Testing a swatch of clothing for the prese

Marizza181 [45]

Answer:

The probability that the result is positive is P=0.04475=4.475%.

Step-by-step explanation:

We have the events:

D: disease present

ND: disease not present

P: test positive

F: test false

Then, the information we have is:

P(D)=0.005

P(P | D)=0.99

P(P | ND)=0.04

The total amount of positive test are the sum of the positive when the disease is present and the false positives (positive tests when the disease is not present).

$P(P)=P(P | D)*P(D)+P(P | ND)*(1-P(D))\\\\P(P)=0.99*0.005+0.04*0.995\\\\P(P)=0.00495+0.0398=0.04475$

The probability that the result is positive is P=0.04475.

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3 years ago

Help on this please show my work ?

Mandarinka [93]

Factor the denominator
x^2+3x-10
(x+5)(x-2)

(x-2)/((x+5)(x-2))

The x-2 in the numerator and denominator cancel out.

Final answer: x+5

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3 years ago

What are 3 equivalent ratios to 3/4?

blsea [12.9K]

Answer:

6/8, 9/12, 12/16

Step-by-step explanation:

Multiply the numerator and denominator by the same amount to maintain the same ration.

$\frac{3}{4} =\frac{6}{8} = \frac{9}{12} =\frac{12}{16}$

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2 years ago

5 liters at $15.25<br> x liters at $33.55

babunello [35]

Answer:

x=2

Step-by-step explanation:

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3 years ago

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