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3 years ago

What is the angle between the minute and hour hand when the time is 6:15? yes

Mathematics

1 answer:

Nana76 [90]3 years ago

3 0

Answer:

9:30

Step-by-step explanation:

it just is

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4 years ago

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3 years ago

$750,000 is what percent of $3,000,000?<br> Please help

velikii [3]

Answer:

Step-by-step explanation:

Solution for 750000 is what percent of 3000000:

750000:3000000*100 =

(750000*100):3000000 =

75000000:3000000 = 25

Now we have: 750000 is what percent of 3000000 = 25

Question: 750000 is what percent of 3000000?

Percentage solution with steps:

Step 1: We make the assumption that 3000000 is 100% since it is our output value.

Step 2: We next represent the value we seek with $x$x.

Step 3: From step 1, it follows that $100\%=3000000$100%=3000000.

Step 4: In the same vein, $x\%=750000$x%=750000.

Step 5: This gives us a pair of simple equations:

$100\%=3000000(1)$100%=3000000(1).

$x\%=750000(2)$x%=750000(2).

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

(left hand side) of both equations have the same unit (%); we have

$\frac{100\%}{x\%}=\frac{3000000}{750000}$

100%

x%=

3000000

750000

Step 7: Taking the inverse (or reciprocal) of both sides yields

$\frac{x\%}{100\%}=\frac{750000}{3000000}$

100%=

750000

3000000

$\Rightarrow x=25\%$⇒x=25%

3 0

3 years ago

find the x-intercepts and the vertex, axis of symmetry and sketch the graph and functions of g(x)=1/2(x+5)(x-1)

wariber [46]

X-int=-5 and the axis of symmetry is x=5.

6 0

3 years ago

Suppose I have an urn with 9 balls: 4 green, 3 yellow and 2 white ones. I draw a ball from the urn repeatedly with replacement.

Mrrafil [7]

Answer:

$E(X_n)=\frac{2(n-1)}{27}$

$E(y)=\frac{14}{9}$

Step-by-step explanation:

From the question we are told that:

Sample size n=9

Number of Green $g=4$

Number of yellow $y=4$

Number of white $w=4$

Probability of Green Followed by yellow P(GY) ball

$P(GY)=\frac{4}{9}*\frac{3}{9}$

$P(GY)=\frac{4}{27}$

Generally the equations for when n is even is mathematically given by

$Probability of success P(S)=\frac{4}{27}$

$Probability of Failure P(F)=\frac{27-4}{27}$

$Probability of Failure P(F)=\frac{23}{27}$

Therefore

$E(X_n)=\frac{n}{2}*P$

$E(X_n)=\frac{n}{2}*\frac{4}{27}$

$E(X_n)=\frac{2n}{27}$

Generally the equations for when n is odd is mathematically given by

$\frac{n-1}{2}$

$E(X_n)=\frac{n-1}{2}*\frac{4}{27}$

$E(X_n)=\frac{2(n-1)}{27}$

Probability of drawing white ball

$P(w)=\frac{2}{9}$

Therefore

$E(w)=\frac{1}{p}$

$E(w)=\frac{1}{\frac{2}{9}}$

$E(w)=\frac{9}{2}$

Therefore

$E(y)=[E(w)-1]\frac{4}{9}$

$E(y)=[\frac{9}{2}-1]\frac{4}{9}$

$E(y)=\frac{14}{9}$

5 0

3 years ago