3 years ago

PLZ HELP, ILL GIVE BRAINLIEST!!!

Mathematics

1 answer:

Georgia [21]3 years ago

8 0

Answer:

Step-by-step explanation:

blue : brown : green : hazel

37 : 62 : 13 : 15

37 + 62 + 13 + 15 = 127

hazel (15 ) + blue (37) = 52

127 - 52 = 75

The probability is 75/ 127

You might be interested in

(8,5) and (6,3)<br> what is the slope ?

egoroff_w [7]

Answer:

Step-by-step explanation:

Let,

$(x_1,y_1)=(8,5)\\(x_2,y_2)=(6,3)\\$

Using the formula:

$m=\frac{y_2-y_1}{x_2-x_1}\\\\m= \frac{3-5}{6-8} \\m=\frac{-2}{-2} \\m=1$

7 0

3 years ago

The compressive strength of concrete is being tested by a civil engineer who tests 12 specimens and finds that the sample mean i

ki77a [65]

Answer:

The 95% confidence interval for mean compressive strength is:

$3237.3\leq \mu\leq 3282.5$

Step-by-step explanation:

We have a sample of n=12 specimens, with sample mean=3259.9 and sample standard deviation = 35.57.

We know the population is normally distributed.

For a 95% confidence interval and df=n-1=11, the t-statistic is t=2.201.

Then, the CI can be expressed as:

$M-t*s/\sqrt{N}\leq \mu\leq M+t*s/\sqrt{N}\\\\3259.9-2.201*35.57/\sqrt{12}\leq \mu\leq 3259.9+2.201*35.57/\sqrt{12}\\\\ 3259.9-22.6\leq \mu\leq 3259.9+22.6\\\\3237.3\leq \mu\leq 3282.5$

6 0

3 years ago

the quotient of a number and 2 is the same as the difference of the number doubled and 3. what is the number? 2? -2? or -4 1/2

kotykmax [81]

The answer is 2. Hope this helps!

4 0

3 years ago

Half of your baseball card collection got wet and was ruined. You bought 9 cards to replace some that were lost. How many did yo

PtichkaEL [24]

solution:

n/2 + 9 = 20

n/2=20-9

n/2=11

n=22

6 0

3 years ago

What's is the answer to this question: 7-6?

ratelena [41]

1, because, if there are 7 fishes and six leaves, then there will be one fish left

6 0

3 years ago

Read 2 more answers