Ask question

Ask question

All categories

2 years ago

14

A box contains

1 answer:

Usimov [2.4K]2 years ago

7 0

<span>the probability that a pen from the first box is selected
= total number of pens in 1st box/total number of objects in box 1
= 5/12

</span>the probability that a crayon from the second box is selected
= total number of crayons in 2nd box/total number of objects in box 2
= 6/8 = 3/4

You might be interested in

Solve the equation sin2x = 3cos2x. The value of x that satisfies the equation if x lies in the second quadrant is °. The value o

faltersainse [42]

Answer:

$126\degree$

and

$126\degree$

respectively.

Step-by-step explanation:

The given trigonometric equation is

$\sin2x=3\cos2x$

We divide both sides by $\cos2x$ to get,

$\frac{\sin2x}{\cos2x}=3$

This implies that,

$\tan2x=3$

We take the inverse tangent of both sides to get,

$2x=\tan^{-1}(3)$

$\Rightarrow 2x=71.565$

$\Rightarrow x=35.7825$

$\Rightarrow x\approx 36\degree$

Since the tangent ratio has a period of $180\degree$ , another solution is

$x=180+36$

$x=216\degree$ to the nearest degree.

In the third quadrant,

$2x=180+71.565$

$\Rightarrow 2x=251.565$

$\Rightarrow x=125.7825$

$\Rightarrow x=126\degree$

The solutions are

$x=36\degree,126\degree,216\degree$

The value of x that satisfies the equation if x lies in the second quadrant is $126\degree$

The value of x that satisfies the equation if x lies in the third quadrant is $216\degree$

5 0

2 years ago

Im not sure how to take a negative and divided it by a positive

jenyasd209 [6]

Okay here’s an example:

10 divided by -5

You can do -5 times what equals 10? And count by 5 to 10, (5, 10)
Only 2 numbers here
So the answer is positive 2.
10 divided by -5= 2

7 0

2 years ago

How do you solve 2x-4y=7, for x<br> with step by step

schepotkina [342]

$2x-4y=7\\\\2x=4y+7\\\\x=\dfrac{4y+7}{2}$

6 0

2 years ago

Select the graph of the quadratic function. f(x)=1/4x^2

KATRIN_1 [288]

Put 2 instead of x you will get a point (2,1) the answer should be b

5 0

3 years ago

How do you solve this? Thanks.

Anna [14]

Answer:

Simulateneous equation

Step-by-step explanation:

Have to slove the equation given then plot the graph

8 0

2 years ago

Read 2 more answers