4 years ago

I will fail if i dont pass this test plzz help!

Mathematics

1 answer:

Fiesta28 [93]4 years ago

8 0

Answer:

Step-by-step explanation:

${2}^{2} + 2(2) + 4 = 12$

You might be interested in

What is the average (arithmetic mean) of the first 90 measurements in a certain list of 92 measurements? (1) the average of the

marishachu [46]

The sum of all the measurements is just the average times the number.

$\bar x = \frac{1}{n} \sum_{i=1}^n x_i$

$\sum_{i=1}^n x_i = n \bar x$

So if the average of all 92 is 7 the sum of those is $92 \times 7$

The average of the last two is 7.2 so their sum is $2 \times 7.2$

That means the sum of the first 90 is $92 \times 7 - 2 \times 7.2$

so the average of the first 90 is

$\dfrac{92 \times 7 - 2 \times 7.2}{90} = 6.99556$ cm

7 0

3 years ago

S is the midpoint of RT. R has the coordinates (-6, -1), and S has coordinates (-1, 1). Find the coordinates of T.

bekas [8.4K]

If the distance from R to S is only half then the other half is S to T. The distance between R and S is (5,2). that should give you the answer

7 0

3 years ago

Read 2 more answers

Which equation results from adding the equations in this system?

My name is Ann [436]

Answer:

fevcs