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3 years ago

Which fraction shows the probability that lily will flip a heads, a tails, and then heads

Mathematics

1 answer:

schepotkina [342]3 years ago

5 0

Answer:

d, 1/6

Step-by-step explanation:

so i did a diagram of some sorts to do this and got around six possible outcomes.

h is heads, t is tails.

h-h-h

t-t-t

h-t-h

t-h-t

t-t-h

h-h-t

feel free to correct me if any of this is wrong.

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What is the answer for 5(2q+8)+12q-6=???

lord [1]

Answer:

56q

Step-by-step explanation:

FIRST, you add 2q and 8.

2q+8=10q

THEN you multiply 10q by 5.

10q*5=50q

NOW add 50q to 12.

50q+12=62q

AND THEN subtract 6.

62q-6=56q

5(2q+8)+12q-6=56q

6 0

3 years ago

In order to estimate the average electric usage per month, a sample of 81 houses was selected and the electric usage was determi

lana [24]

Answer:

Confidence interval: (1760,1956)

Step-by-step explanation:

We are given the following information in the question:

Sample size, n = 81

Sample mean =

$\bar{x} = 1858 \text{ kWh}$

Population standard deviation =

$\sigma = 450 \text{ kilowatt-hours}$

Confidence Level = 95%

Significance level = 5% = 0.05

Confidence interval:

$\bar{x} \pm z_{critical}\displaystyle\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = \pm 1.96$

$1858 \pm 1.96(\displaystyle\frac{450}{\sqrt{81}} ) = 1858 \pm 98 = (1760,1956)$

6 0

3 years ago

Brainliest + Points<br><br> Help and explain? So I could understand it?

tatiyna

Answer: A

golden ratio approximately equals:

(1+sqrt(5))/2=1.618

5/3=1.667

7/5=1.4

10/8=5/4=1.25

17/11=1.545

Change everything to decimal form and see what is closest.

So we can see that the photograph size of 5x3 is the best choice as it is the closest in size to the golden ratio.

Any questions at all please feel free to ask! Thank you so much!

5 0

4 years ago

Amanda drinks 2 1/2 pints of milk a day. How much is this in cups?

trapecia [35]

Answer: A pint is equal to 2 cups (example: a large glass of milk!) When measuring many cups of liquid all put together we might want to use quarts. A quart (qt) is the same thing as 4 cups or 2 pints.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

PLS HELP!! NO LINKS!! WILL MARK YOU BRAINLIEST!!

finlep [7]

Answer:

(d) -11

Step-by-step explanation:

The sum of the acute angles of a right triangle is 90°. (That makes the sum of all angles be 180°, as it is for any triangle.)

65° +(36 +x)° = 90°

x = 90 -101 . . . . . . . . divide by °, subtract 101

x = -11

5 0

2 years ago