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2 years ago

Can someone help me please

Mathematics

1 answer:

12345 [234]2 years ago

7 0

Answer:

Step-by-step explanation:

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cConsider a game in which players roll a number cube to determine the number of points earned. If a player rolls a prime number,

quester [9]

Expected value = -1(1/6) + 2(1/6) + 3(1/6) - 4(1/6) + 5(1/6) - 6(1/6) = -1/6 + 2/6 + 3/6 - 4/6 + 5/6 - 6/6 = -1/6 = -0.167

4 0

3 years ago

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5(x+4)= -2(-4-x)+3 what is the answer?

lianna [129]

Answer:

x = -3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Step-by-step explanation:

Step 1: Define equation

5(x + 4) = -2(-4 - x) + 3

Step 2: Solve for x

Distribute: 5x + 20 = 8 + 2x + 3
Combine like terms: 5x + 20 = 2x + 11
Subtract 2x on both sides: 3x + 20 = 11
Subtract 20 on both sides: 3x = -9
Divide 3 on both sides: x = -3

Step 3: Check

Plug in x to verify it's a solution.

Substitute: 5(-3 + 4) = -2(-4 - -3) + 3
Simplify: 5(-3 + 4) = -2(-4 + 3) + 3
Add: 5(1) = -2(-1) + 3
Multiply: 5 = 2 + 3
Add: 5 = 5

Here we see that 5 does indeed equal 5. ∴ x = -3 is a solution of the equation.

And we have our final answer!

5 0

3 years ago

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Pick Two Points on the Line. Use "Rise over Run" to Find the Slope. T ✓

inn [45]

Answer:

Easiest to pick (0, 0) and (1, 1) probably, then slope is 1.

Step-by-step explanation:

Rise over run for (0, 0) and (1, 1) is rise up 1 and run over 1, so 1/1.

This means slope is 1

7 0

3 years ago

Sara owns an exotic pet store. She wants to make sure she has more than a pound of food for every 15 lizards she has in the stor

Cerrena [4.2K]

Answer:

1.x/15 < 4.25

2. she can have a maximum of 63 lizards.

Step-by-step explanation:

8 0

2 years ago

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Which two values of x are roots of the polynomial below? 3x2-3x+1

QveST [7]

Answer:

The roots are

$x=\frac{1}{6} [3+ i\sqrt{3}]$

$x=\frac{1}{6} [3- i\sqrt{3}]$

Step-by-step explanation:

we have

$3x^2-3x+1$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$3x^2-3x+1=0$

$a=3\\b=-3\\c=1$

substitute in the formula

$x=\frac{-(-3)\pm\sqrt{-3^{2}-4(3)(1)}} {2(3)}$

$x=\frac{3\pm\sqrt{-3}} {6}$

Remember that

$i=\sqrt{-1}$

$x=\frac{1}{6} [3\pm i\sqrt{3}]$

The roots are

$x=\frac{1}{6} [3+ i\sqrt{3}]$

$x=\frac{1}{6} [3- i\sqrt{3}]$

6 0

2 years ago