3 years ago

How to do this? pls help

Mathematics

1 answer:

densk [106]3 years ago

6 0

Answer:

1006y

Step-by-step explanation:

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Helppppp me please…….:/

Dmitry_Shevchenko [17]

Answer:

65.3%

Step-by-step explanation:

what we want: p(2)+p(3)+p(4)

$P(2)={5\choose2}*.4^2*.6^3\\P(3)={5\choose3}*.4^3*.6^2\\P(4)={5\choose4}*.4^4*.6\\P(2)+P(3)+P(4)= .6528$

which equal 65.28%

which rounds to

65.3%

6 0

3 years ago

Please please need help on these two

kati45 [8]

Answer:

( f + g ) (x) = $2 x^{2} + x - 4$

g(x) - f(x) = $x^{2} - 2 x - 4$

Step-by-step explanation:

f(x) = 4 x - 4 and g(x) = $2 x^{2} - 3 x$

( f + g ) (x) = f(x) + g(x)

= $4 x - 4 + 2 x^{2} - 2 x$

= $2 x^{2} + x -4$

2. g(x) = $x^{2} + 1$ and f(x) = 2 x + 5

g(x) - f(x) = $x^{2} + 1 - (2 x + 5)$

= $x^{2} + 1 - 2 x - 5$

= $x^{2} - 2 x - 4$

6 0

3 years ago

Write two equivalent expressions involving<br> decimals that illustrate the Distributive Property.

Darina [25.2K]

0.2+z= 0.2y +1z
That only one but I believe in you
You really smart own it

7 0

3 years ago

Evaluate the expression for x = –3. x^2+4x+3

DanielleElmas [232]

Answer:

Step-by-step explanation:

Substitute x = - 3 into the expression

x² + 4x + 3

= (- 3)² + 4(- 3) + 3

= 9 - 12 + 3

= 0

7 0

3 years ago

Determine whether y varies directly with x. If so, find the constant of variation k.

kumpel [21]

Direct variation is y=kx, inverse variation is y=k/x....

-5y=-2x divide both sides by -5

y=2.5x

So this is a direct variation with a constant of 2.5

5 0

3 years ago