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3 years ago

The probability of a coin landing on heads when it is flipped is

Mathematics

2 answers:

forsale [732]3 years ago

8 0

Answer:

50%

Step-by-step explanation:

The theoretical probability to get either heads or tails is 0.5 (or 50 percent). The probabilities of all possible outcomes should add up to 1 (or 100 percent), which it does.

Vesnalui [34]3 years ago

6 0

Answer:

50%

Step-by-step explanation:Since there is a 0.5 chance of the coin landing on heads add a zero and take off the .0 and you get 50%.

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At tire Depot a green pair of new tire sells for $216 the managers special advertises the same tire selling at a rate of $380 fo

podryga [215]

The answer is 52 if you get the manager special

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3 years ago

What is a number line for 5a + 18 < -27?

Alexandra [31]

a < -9

Rearrange:

Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :

5*a+18-(-27)<0

Step by step solution :

Step 1 :

Pulling out like terms :

1.1 Pull out like factors :

5a + 45 = 5 • (a + 9)

Equation at the end of step 1 :

Step 2 :

2.1 Divide both sides by 5

Solve Basic Inequality :

2.2 Subtract 9 from both sides

a < -9

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3 years ago

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Use the quadratic formula to solve the equation x^2-7x-6=0

olganol [36]

Answer:

$\frac{7\pm\sqrt{73}} {2}$

Explanation:

We have been given with the quadratic equation $x^2-7x-6=0$

We have general formula to find the roots of a quadratic equation first we find the discriminant with formula

$D=b^{2}-4ac$

and after that to find the variable suppose x we have the formula

$x=\frac{-b\pm\sqrt{D}} {2a}$

And general quadratic equation is

$ax^2+bx+c=0$

On comparing the given quadratic equation with genral quadratic equation we will have values

a=1, b=-7 and c=-6

After substituting these values in the formula we will get

$D=(-7)^2-4(1)(-6)={73}$

After substituting in the formula to find x we will get

$\frac{-(-7)\pm\sqrt{73}} {2}= \frac{7\pm\sqrt{73}} {2}$

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3 years ago

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8. A rectangular prism has a volume of 468 cubic meters. It has a length of 12 meters and a width of 6 meters. What is the heigh

evablogger [386]

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3 years ago

Im desperate! please help!

djyliett [7]

I would go with A. An estimate.

This may not be the right answer but Good Luck!

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3 years ago