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steposvetlana [31]
3 years ago
14

Will give brainliest to whoever answers first

Mathematics
1 answer:
krek1111 [17]3 years ago
3 0

the answer will be x=3 because log(x-2)base 2=3

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There are 205 coins in a jar all of which are either nickles or quarters . The vaule of the coin in the jar is $31.85. if both o
Gnesinka [82]

Answer: There are 97 nickels and 108 quarters.

Step-by-step explanation:

Let x = Number of nickels, y = Number of quarters.

As per given,

x+y = 205    ...(i)

0.05x+0.25y = 31.85 ... (ii)    [1 nickel = $0.05, 1 quarter = $ 0.25]

Multiply (ii) by 20, we get

x+5y=637   ...(iii)

Eliminate (i) from (iii)

4y = 432

⇒ y = 108 [Divide both sides by 4]

Put value of y in (i), we get

108+x=205\Rightarrow\ x= 97

Hence, there are 97 nickels and 108 quarters.

6 0
3 years ago
Which point of concurrency is the center of gravity in a triangle
ipn [44]
Answer: centroid
Reasoning: The centroid is the point of concurrency of the three medians in a triangle.
3 0
3 years ago
The time to fly between new york city and chicago is uniformly distributed with a minimum of 120 minutes and a maximum of 150 mi
Paul [167]
120+150=270
270÷2=135
Mean=135
5 0
3 years ago
Suppose A and B are independent events if P(A) = 0.4 And P(B) = 0.1, what is P(A'uB)? APEX
Aloiza [94]
For Independent Events, P(A) × P(B) = P(A∩B)

so we have, P(A∩B) = 0.4×0.1 = 0.04

P(A') = 1 - 0.4 = 0.6

This information can be represented on a Venn diagram as shown below

P(A'∪B) means the union of everything that is not A with everything that is B

P(A'∪B) = 0.06 + 0.54 + 0.04 = 0.64


5 0
3 years ago
Perform the indicated row operation:
alexandr1967 [171]

Answer:

answers down below

Step-by-step explanation:

lol i hope it's this one

5 0
2 years ago
Read 2 more answers
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