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4 years ago

Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest

Mathematics

1 answer:

DIA [1.3K]4 years ago

7 0

Answer:

1/9

2/3 * 1/2

Step-by-step explanation:

There are 3 total options 2 dark 1 milk

P( milk) = milk/total = 1/3

We put it back

There are 3 total options ,2 dark 1 milk

P( milk) = milk/total = 1/3

P (milk, replace, milk) = P(milk) P(milk) = 1/3 * 1/3 = 1/9

There are 3 total options 1 dark 2 milk

P( milk) = milk/total = 2/3

We eat it

There are 2 total options ,1 dark 1 milk

P( milk) = milk/total = 1/2

P (milk, eat, milk) = P(milk) P(milk) = 2/3 * 1/2 = 1/3

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7+7=14RIGHT.Then WHAT IS14-7.A=33×4=___a

JulijaS [17]

14-7=7, and 33×4 is 132

7 0

3 years ago

A projectile is thrown upward so that its distance above the ground after t seconds is h =-13t2 + 390t. After how many seconds d

sertanlavr [38]

Answer:

<h3>The option C) 15 s is correct</h3><h3>Therefore the maximum height it reaches in <u>15 seconds. </u></h3>

Step-by-step explanation:

Given equation is $h =-13t^2 + 390t$

Given that a projectile is thrown upward so that its distance above the ground after t seconds is $h =-13t^2 + 390t$

<h3>To find how many seconds does it reach its maximum height:</h3>

"The standard form of a parabola's equation is expressed as :

$y=ax^2+bx+c$ .

If $a>0$ , then the parabola opens upwards;

if $a$ the parabola opens downwards."

The maximum height is the vertex of the parabola $h =-13t^2 + 390t$ which is $\frac{-b}{2a}$ .

Comparing the given equation with the standard form of parabola we get

the values of a=-13 , b=390 and c=0

The maximum height in $t=\frac{-b}{2a}$ .

Substitute the values we get

$t=-\frac{390}{2(-13)}$

$=\frac{390}{26}$

$=15$

<h3>∴ t=15 s</h3><h3>∴ The option C) 15 s is correct.</h3><h3>∴ the maximum height is the vertex of the parabola, at t reaches in 15 seconds. </h3>

3 0

3 years ago

What is the product?

Artemon [7]

Answer:

-12x^2+42x-6

Step-by-step explanation:

8 0

3 years ago

What’s the equation for<br><br> 3/9 + 2/3

Katyanochek1 [597]

Answer:

Step-by-step explanation:

3/9 + 2/3

Simplify the first fraction by dividing the top and bottom by 3

1/3 + 2/3

Since the denominators are the same, add the numerators

3/3

4 0

3 years ago

What is the value of z in the table? A 4% peroxide solution is mixed with a 10% peroxide solution, resulting in 100 L of an 8% s

Tresset [83]

Answer:

87.1

Step-by-step explanation:

Lets say, first number = x

Second number = 3x+7

Total = 49

(x)+(3x+7)= 49

4x+7 = 49

4x = 42

x = 42/4

x= 10.5

3x+7 = 3(10.5)+7 = 87.1

Hope this helps!!

4 0

4 years ago

Read 2 more answers