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4 years ago

(8.6×1015)−(4.3×1012)

Mathematics

1 answer:

Triss [41]4 years ago

5 0

Answer:

D. 4.3×1015

Step-by-step explanation:

multiple 8.6×1015=8729 and multiple 4.3×1012=4351.6 and subtract the two answers to get 4377.4 and D. was the closest

you try multiplying all the answer choices till you get close to the answer

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–3(x + 4) = 2x – 37 ouweee i need dis

ankoles [38]

Answer:

x = 5

Step-by-step explanation:

6 0

3 years ago

a parking meter has 32 coins in nickels and quarters. the coins are worth $3.20. how many quarters and how many nickels are in t

BigorU [14]

Answer:

n = 24

q = 8

Step-by-step explanation:

Let:

n = nickels

q = quarters

5n + 25q = 320

n + q = 32

n = 32 - q

Substitute (to solve for q):

5(32 - q) + 25q = 320

160 - 5q + 25q = 320

160 + 20q = 320

20q = 320 - 160

20q = 160

q = 160 ÷ 20

q = 8

Substitute (to solve for n):

n = 32 - q

n = 32 - (8)

n = 24

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3 years ago

A study by a reputable research organization found that when presented with prints from the same individual, a fingerprint expe

Llana [10]

Answer:

a. 0.6899

b. 0.1642

Step-by-step explanation:

a. Given the probability of success is 0.94 for an expert and that the number of pairs, n=6:

-Each attempt is independent and therefore the probability of the events is calculated as:

$P(A \ and \B )=P(A)\times P(B)\\\\P(6)=0.94\times0.94\times0.94\times0.94\times0.94\times0.94\\\\=0.6899$

Hence, the probability of correctly identifying the 6 matches is 0.6899

b.Given the probability of success is 0.74 for a novice and that the number of pairs, n=6:

-Each attempt is independent and therefore the probability of the events is calculated as:

$P(A \ and \B )=P(A)\times P(B)\\\\P(6)=0.74\times0.74\times0.74\times0.74\times0.74\times0.74\\\\=0.1642$

#Hence, the probability of correctly identifying the 6 matches is 0.1642

*I have used the sample size of 6(due to conflicting info/question size).

7 0

4 years ago

Factor 3x (x+5) + 4(x+5)

Grace [21]

Factor x+5 out of 3x (x+5)+4(x+5)
And you get (x+5)(3x+4)

3 0

3 years ago

Which of the following is the graph of −f(x)?

soldier1979 [14.2K]

Answer:

Impossible to tell as you have not informed us about f(x)

Step-by-step explanation:

In any case -f(x) will mirror f(x) over the x axis.

7 0

3 years ago