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Naya [18.7K]
3 years ago
11

I have a spinner that is divided into 4 equal sections colored red, blue ,green, and yellow . If I spin the spinner twice ,What

is the probability that I will randomly select a blue marker, put it back, then randomly select a purple marker ?
Mathematics
1 answer:
Vladimir [108]3 years ago
7 0

Answer:

1/16

Step-by-step explanation:

(1/4) (1/4)

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I upped the steaks plz answer this, I will give brainiest
Bad White [126]

Answer:

\displaystyle   x =   \frac{3}{4}

Step-by-step explanation:

we are given that

\displaystyle P =  \left(x,  - \frac{  \sqrt{7} }{4}  \right)

we want to figure out x

remember that,

In <u>unit</u><u> </u><u>circle</u> x coordinate is considered cos and y coordinate is considered sin

so in order to figure out x we should figure out the value of <u>cos</u> to do we can consider <u>Pythagoras</u><u> trig</u><u> </u><u>indentity</u>

given by

\displaystyle  \sin ^{2} ( \theta)  +  {  \cos}^{2} ( \theta) = 1

we are given sin=-√7/4 thus

substitute:

\displaystyle   \left( - \frac{ \sqrt{7}  }{4}  \right) ^{2}   +  {  \cos}^{2} ( \theta) = 1

simplify square:

\displaystyle  \frac{7}{16}  +  \cos ^{2} ( \theta)  = 1

move left hand side expression to right hand side and change its sign:

\displaystyle   \cos ^{2} ( \theta)  = 1 -  \frac{7}{16}

simplify Substraction:

\displaystyle   \cos ^{2} ( \theta)  =  \frac{9}{16}

square root both sides:

\displaystyle   \cos ^{} ( \theta)  =   \pm\frac{3}{4}

since in unit circle cos is x and P belongs to Q:IV negative cos isn't applicable

hence,

\displaystyle   x =   \frac{3}{4}

5 0
3 years ago
I need help is it A B C or D
kkurt [141]
Anwer is B...... . ........
7 0
3 years ago
What is a name for a marked angle ? Answers to choose from :
katen-ka-za [31]

Answer:

Angles are named in two ways. You can name a specific angle by using the vertex point, and a point on each of the angle's rays. The name of the angle is simply the three letters representing those points, with the vertex point listed in the middle. You can also name angles by looking at their size.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Zamira and Courtney share a 16 oz box of cereal. By the end of the week, Zamira has eaten 38 of the box, and Courtney has eaten
12345 [234]

Answer:

12/25 ths of the box is left.

Step-by-step explanation:

I'm assuming you mean 14% and 38%

If so then the first thing you'd do is put 38 and fourteen over 100 such as:

38/100 and 14/100.  You do that because since its a percentage, its the same as the number of that percentage over 100.

Since you now have like terms, you can add them together, in which you add the two numerators (top row), but leaving the denominator (bottom row) the same, and it would give you:

52/100

What you want to do after that is simplify it. Once you simplify it, the simplified version of this is technically still the same as the non-simplified version, just easier to use.

Once you simplify it once, you will get:

26/50 and then if you simplify it again, you'll get 13/25

KEEP IN MIND that this is the amount that HAS BEEN EATEN ALREADY.

After that, you wan to subtract your part from your whole meaning you'd subtract: 25/25 - 13/25

Going back to earlier, you subtract the numerator and leave the denominator the same ONLY because they have like terms(The DENOMINATORS match)

After subtracting, you will get an answer of 12/25ths, which cannot be further simplified either.

Hope this helped!

4 0
3 years ago
Please I need help for number 6 for brainlest and answer ! And show your work on how you got it
solmaris [256]

Answer:

Step-by-step explanation:

inverse variation. if value of x increase, y value decrease.

For example,

If x=10;   y =1/10 = 0.1

If x =100 ;  y = 1/100 = 0.01

8 0
3 years ago
Read 2 more answers
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