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2 years ago

8

Please help ASAP! :) I WILL MARK Brainliest!!!

1 answer:

Ostrovityanka [42]2 years ago

7 0

Answer:

3

Step-by-step explanation:

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Which number is a solution of the inequality? b > 11.3; 9 –14 15 4

marshall27 [118]

$b > 11.3\\\\9-NOT,\ because\ 9\ is\ not\ greater\ than\ 11.3\\-14-NOT,\ because\ -14\ is\ not\ greater\ than\ 11.3\\15-YES,\ because\ 15>11.3\\4-NOT,\ because\ 4\ is\ not\ greater\ than\ 11.3\\\\Answer:\ \boxed{15}$

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3 years ago

After the addition of an acid, a solution has a volume of 90 milliliters. The volume of the solution is 3 milliliters greater th

11111nata11111 [884]

Answer: $21.75\ milliliters$

Step-by-step explanation:

Let be "x" the original volume of the solution (in milliliters) before the acid was added and "y" the volume of the solution (in milliliters) after the addition of the acid.

Set up a system of equations:

$\left \{ {{x+y=90} \atop {y=3x+3}} \right.$

Applying the Substitution Method, you can substitute the second equation into the first equation and then solve for "x":

$x+y=90\\\\x+(3x+3)=90\\\\4x+3=90\\\\x=21.75$

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3 years ago

How many meters does 20 yards equal

Yuliya22 [10]

Answer:

Step-by-step explanation:One yard equals 0.9144 meter. Therefore 20 yards = 20 * 0.9144 = 18.288 meters

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2 years ago

a triangle pyramid has lateral faces with bases of 6meters and hights of 9 meters the area of the base of the pyramid

Alexxandr [17]

What is the question

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2 years ago

The volume of a shampoo filled into a container is uniformly distributed between 370 and 385 milliliters. (a) What are the mean

Olenka [21]

Answer:

(a) mean = 377.5ml. standard deviation = 4.33

(b) 0.333

(c) 384.25 ml

Step-by-step explanation:

(a)The mean:

$\mu = \frac{385 + 370}{2} = 377.5 ml$

The standard deviation:

$\sigma = \frac{385 - 370}{\sqrt{12}} = 4.33$

(b)

$P(x < 375) = \frac{375 - 370}{385 - 370} = \frac{1}{3} \approx 0.333$

(c)P(x > m) = 0.95

$\frac{m - 370}{385 - 370} = 0.95$

$m - 370 = 14.25$

$m = 384.25ml$

So the volumn of shampoo should be 384.25ml to exceed 95% of containers.

7 0

3 years ago