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tatyana61 [14]
3 years ago
11

What is the answer to 6-6-((-5)-7)

Mathematics
1 answer:
lord [1]3 years ago
3 0
-((-5)-7)=-35 and 6-6=0 so your answer is -35
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<img src="https://tex.z-dn.net/?f=2%5E%7B4x%20%2B%2014%7D%20%20%3D%20%20%7B64%7D%5E%7Bx%20%2B%202%7D%20" id="TexFormula1" title=
frutty [35]

\\ \rm\longmapsto 2^{4x+4}=64^{x+2}

\\ \rm\longmapsto 2^{4x+4}=(2^6)^{x+2}

\\ \rm\longmapsto 2^{4x+4}=2^{6(x+2)}

\\ \rm\longmapsto 4x+4=6(x+2)

\\ \rm\longmapsto 4x+4=6x+12

\\ \rm\longmapsto 4-12=6x-4x

\\ \rm\longmapsto -8=2x

\\ \rm\longmapsto x=\dfrac{-8}{2}

\\ \rm\longmapsto x=-4

8 0
2 years ago
Read 2 more answers
PLS HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
scoray [572]

Answer:

Clam down jamal don't pull out the 9 X_X

Step-by-step explanation:

3 0
2 years ago
A box contains 5 red and 5 blue marbles. Two marbles are withdrawn randomly. If they are the same color, then you win $1.10; if
topjm [15]

Answer:

a) The expected value is \frac{-1}{15}

b) The variance is  \frac{49}{45}

Step-by-step explanation:

We can assume that both marbles are withdrawn at the same time. We will define the probability as follows

#events of interest/total number of events.

We have 10 marbles in total. The number of different ways in which we can withdrawn 2 marbles out of 10 is \binom{10}{2}.

Consider the case in which we choose two of the same color. That is, out of 5, we pick 2. The different ways of choosing 2 out of 5 is \binom{5}{2}. Since we have 2 colors, we can either choose 2 of them blue or 2 of the red, so the total number of ways of choosing is just the double.

Consider the case in which we choose one of each color. Then, out of 5 we pick 1. So, the total number of ways in which we pick 1 of each color is \binom{5}{1}\cdot \binom{5}{1}. So, we define the following probabilities.

Probability of winning: \frac{2\binom{5}{2}}{\binom{10}{2}}= \frac{4}{9}

Probability of losing \frac{(\binom{5}{1})^2}{\binom{10}{2}}\frac{5}{9}

Let X be the expected value of the amount you can win. Then,

E(X) = 1.10*probability of winning - 1 probability of losing =1.10\cdot  \frac{4}{9}-\frac{5}{9}=\frac{-1}{15}

Consider the expected value of the square of the amount you can win, Then

E(X^2) = (1.10^2)*probability of winning + probability of losing =1.10^2\cdot  \frac{4}{9}+\frac{5}{9}=\frac{82}{75}

We will use the following formula

Var(X) = E(X^2)-E(X)^2

Thus

Var(X) = \frac{82}{75}-(\frac{-1}{15})^2 = \frac{49}{45}

7 0
3 years ago
What is -2x times x i would try to do it myself but i can't
expeople1 [14]

Answer:

-2x times x is -2x^2

Step-by-step explanation:

because you have two x's

Hope This Helps!    Have A Nice Day!!

8 0
3 years ago
Johnson rode her bike 7 miles to a lake. She rode 3/4 of distance to the lake before lunch. How many miles did Johnson ride befo
Virty [35]

Answer:

5.25 miles.

Step-by-step explanation:

What I did was I took 3/4 and made it into its decimal form which is 3/4. I then times it by 7 to get 5.25.

5.25 miles is your answer.

5 0
3 years ago
Read 2 more answers
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