I know 5his is easy for yall but for me is not I need some help please I'm giving brainlist.

Mathematics

1 answer:

Anna71 [15]3 years ago

4 0

Answer:

$2.99

Step-by-step explanation:

Given parameters:

Selling price = $19.95

Discount percentage = 15%

Unknown:

Amount of discount = ?

Solution:

To find the amount of discount, ;

Discount amount = discount percentage x selling price

Discount amount = $\frac{15}{100}$ x 19.95

Discount amount = $2.99

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There are 10 rolls of film in a box and 3 are defective. two rolls are selected without replacement. what is the probability of

german

P(picking one defective) = 3/10
P(picking a 2nd defective) = 2/9

P(1 and 2 defective) = 3/10 x 2/9 = 6/90 = 0.066

Second method using combination:
³C₂ / ¹⁰C₂ = 1/15 = 0.066

4 0

3 years ago

Simplified?

kap26 [50]

Answer:

Option B

Step-by-step explanation:

Given the following question:

In order to find the answer, we need to convert the scientific notation into standard notation and then simplify by subtracting the decimals. Then we convert the standard notation back into scientific notation.

$0.0007 - (4.9\times 10^{-7} )$
$4.9\times10^{-7} =0.00000049$
$0.0007-0.00000049$
$0.0007-0.00000049=0.00069951$
$=0.00069951$
$0.00069951=6.9951 \times10^{-7}$
$=6.9951 \times10^{-7}$

Your answer is "6.9951 × 10^-7" or option B.

Hope this helps.