Im notr sure but if we take the chances that the 4 sum has to be either (1.3) (3.1) (2.2) (2.2) that means its chance is 4/36 for each roll which is also 1/9 ,, we can multiply 1/9 times the roll times ( 252 ) we get =28

8 0

3 years ago

Working alone, it would take Shandra 40 minutes to sand a table. To sand the same table, also working alone, it would take

egoroff_w [7]

Answer: it will take them about 24 minutes working together

Step-by-step explanation:

1/40 + 1/60 =

6/240 + 4/240 = 10/240 = 1/24

1/24 = 1/t

Cross multiplication:

1*t = 1*24

t= 24

3 0

2 years ago

Read 2 more answers

Find the root of 11+2square30

EleoNora [17]

$\\ \sf\longmapsto \sqrt{11+2^230}$

$\\ \sf\longmapsto \sqrt{11+4(30)}$

$\\ \sf\longmapsto \sqrt{11+120}$

$\\ \sf\longmapsto \sqrt{131}$

$\\ \sf\longmapsto 11.3$

5 0

2 years ago

Find the solutions to x² = 12.

Novosadov [1.4K]

Answer:

$x = \pm 2\sqrt3$

Step-by-step explanation:

Hello!

Let's use the square root property to solve this question

Solve:

$x^2 = 12$
$\sqrt{x^2} = \sqrt{12}$
$x = \pm\sqrt{12}$
$x = \pm \sqrt{4 * 3}$
$x = \pm 2\sqrt3$

The answer is option A: x = ±2√3

3 0

2 years ago