$x^2=-5x-3\\x^2+5x+3=0\\\\a=1;\ b=5;\ c=3\\\Delta=b^2-4ac\\\\\Delta=5^2-4\cdot1\cdot3=25-12=13 \ \textgreater \ 0\\\\then\\x_1=\dfrac{-b-\sqer\Delta}{2a}\ and\ x_2=\dfrac{-b+\sqrt\Delta}{2a}\\\\x_1=\dfrac{-5-\sqrt{13}}{2\cdot1}=\boxed{\dfrac{-5-\sqrt{13}}{2}}\\\\x_2=\dfrac{-5+\sqrt{13}}{2\cdot1}=\boxed{\dfrac{-5+\sqrt{13}}{2}}$

4 0

3 years ago

Cylinder A has a volume of 100 cm and cylinder B has a height that two fifths of the height of cylinder A

Ivahew [28]

You need more input here what even is the question

6 0

3 years ago

A circle has a radius of 6 meters.

Wittaler [7]

Answer:

37.7; B, 36 pi; C

Step-by-step explanation:

Hello!

The formula for finding circumference of a circle is 2πr:

In that case, we can just substitute 6 meters for our radius.

6 × 2π = 12π

12 × 3.14 (about π) = 37.68

That's about 37.7 (when rounded.)

Thusly, the closest option is $\boxed{ 37.7 {\text{\:or\:B.}}}$ .

The formula for finding the area of a circle is πr²:

In that case, we can just substitute 6 meters for our radius. (again.)

6² = 36

36 × π = 36π

Therefore, $\boxed{36\pi{\text{\:or\:C}}}$ is our answer.

brainliest please and thanks (:

Hope this helps!

5 0

4 years ago

The distribution of salaries of professional basketball players is skewed to the right. Which measure of central tendency would

True [87]

Answer:

Median

mean>median

Step-by-step explanation:

When the data is skewed to right the suitable average is median. Median is suitable because it is less effected by extreme values and thus locate the center of the distribution perfectly. Here the salaries of basket players are skewed to right and the best measure of central tendency to measure the center of distribution is median.

When the frequency distribution is rightly skewed then the relationship of mean and median is that mean is greater than median that is Mean>median.

Hence when the distribution is skewed to right the best choice to measure the center of distribution is median and when the data is skewed to right mean is greater than median.

7 0

3 years ago