3 years ago

Average daily temperatures in Tucson,Arizona in December 67,57,52,51,64,58,67,58,55,59,66,50,57,62,58,50,58,50,60,63

Mathematics

2 answers:

valkas [14]3 years ago

4 0

Add all the numbers then divide by the number of numbers there are. 51.1

Virty [35]3 years ago

3 0

The average temperature is 58 degrees

You might be interested in

-k+4(k+1)=2k whats k

Ivenika [448]

Step-by-step explanation:

-k + 4(k + 1) = 2k

-k + 4k + 4 = 2k

-k + 4k - 2k = -4

(-1 + 4 - 2)k = -4

k = -4

5 0

3 years ago

Write the given trinomial if possible as a square of a binomial or as an expression opposite to a square of a binomial: 15ab-9a^

MrMuchimi

Answer:

$- \bigg(3a - \frac{5}{2} b) \bigg)^{2}$

Step-by-step explanation:

$15ab-9a^2-6 \frac{1}{4} b^2 \\ \\ = 15ab-(3a)^2-\frac{6 \times 4 + 1}{4} b^2 \\ \\ = 15ab-(3a)^2-\frac{24+ 1}{4} b^2 \\ \\ = 15ab-(3a)^2-\frac{25}{4} b^2 \\ \\ = 15ab- (3a)^2- \bigg(\frac{5}{2} b \bigg)^2 \\ \\ = - \{ - 15ab + (3a)^2 + \bigg(\frac{5}{2} b \bigg)^2 \} \\ \\ = - \{ (3a)^2 + \bigg(\frac{5}{2} b \bigg)^2 - 15ab \} \\ \\ = - \bigg(3a - \frac{5}{2} b \bigg)^{2}$