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SIZIF [17.4K]
4 years ago
15

5(2x-7)+42-3x=2 what is the answer ​

Mathematics
1 answer:
Kitty [74]4 years ago
7 0

Answer:

5(2x-7)+42-3x=2

10x-35+42-3x=2

7x+7=2

7x=2-7

7x=-5

x=-5/7

the answer is (-5/7).

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Solve y-0=-2(x-(2)) Show how you did it please
LuckyWell [14K]
Y=-2x+4. is what it simplifies too. there is not enough info to solve
7 0
3 years ago
Use the following function rule to find f(-1).<br> f(x) = -11 + 8x<br> f(-1) =?
8090 [49]

Answer:

-19

Step-by-step explanation:

f(x) = -11 + 8x

f(-1) =-11 + 8(-1)

     = -11 -8

      = -19

3 0
4 years ago
Read 2 more answers
Let X have the probability mass function P(X = −1) = 1 2 , P(X = 0) = 1 3 , P(X = 1) = 1 6 Calculate E(|X|) using the approaches
Studentka2010 [4]

Answer:

Step-by-step explanation:

From the given information:

Note that the possible values of Y are 0 and 1 because;

y = 0 if X = 0 and y = 1 if X = ±1

∴

P(Y =0) = P(X = 0) =\dfrac{1}{3}

P(Y = 1) = P(X = -1  \ or \ 1) \\ \\ = P(X = -1) + P(X = 1)

= \dfrac{1}{2}+ \dfrac{1}{6}

=\dfrac{3+1}{6}

= \dfrac{2}{3}

b)

E(|X|) = \sum |x| P(X=x) = ( 1 \times \dfrac{1}{2}) + ( 0\times \dfrac{1}{3}) + ( 1 \times \dfrac{1}{6})

= \dfrac{2}{3}

7 0
3 years ago
1. Which shows the Distributive Property?
VashaNatasha [74]

Answer:

Im pretty sure its B for the first one

Step-by-step explanation:

5 0
3 years ago
What is 4 a whole number as a fraction<br><br> note: this is for my little sister!
bonufazy [111]

Answer:

4/1

Step-by-step explanation:

Dividing any number by 1 gives you the same number, therefore 4/1 is the fraction form.

4 0
3 years ago
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