3 years ago

What is the sum of -3 and -12

Mathematics

1 answer:

goblinko [34]3 years ago

4 0

Answer:

-15

Step-by-step explanation:

-3 + -12 = -15

You might be interested in

243%. X<br> _____= -----<br> 100. 23

Svetach [21]

5 over the power if two divide 6 from what you get and that is your answer

8 0

3 years ago

A family goes grocery shopping every week. in a month the costs of the groceries are $72.42, $91.50, $58.99, and $69.02. 5. what

frozen [14]

1) Mean
The mean is given by the sum of the data divided by the number of data (4, in this case):
$\mu = \frac{1}{N} \sum x_i = \frac{1}{4}(72.42+91.50+58.99+69.02) = \frac{291.93}{4}=72.98 $$

2) Standard deviation
The standard deviation is given by:
$\sigma = \sqrt{ \frac{1}{N} \sum (x_i-\mu)^2 }$
where $\mu$ is the mean, that we already found at point 1), and N=4. Substituting data, we have:
$\sigma = \sqrt{ \frac{1}{4} ((-0.56)^2+(18.52)^2+(-13.99)^2+(-3.96)^2) } =$
$= \sqrt{ \frac{1}{4} (554.71)} = \sqrt{138.68} =11.78 $$

3 0

4 years ago

In one month, Claudia rides her favorite bike trail 12 times. She travels a total distance of 1182 km. What is the length of Cla

kati45 [8]

The length of the trail is 98.5 KM, all you need to do is divide the total distance by the number of times she went on it.

4 0

3 years ago

Read 2 more answers

Please help me solve this LCM

hodyreva [135]

Note that

$x^2 - y^2 = (x - y) (x + y)$