First, we can see that we have two terms with the variables $xy$ being multiplied together, $2xy$ and $-xy$ . Together, these add to $xy$ , so our expression is now:

$xy - 3yz + 5 + 2yz$

We also have two terms with $yz$ , $-3yz$ and $2yz$ . Together, these add to $-yz$ , so our expression is now:

$xy - yz + 5$

Our final expression is xy - yz + 5.

6 0

3 years ago

If you double a number and then add 32, the result is 80. what is the number?

maw [93]

80-32 ÷ 2= 24
( you just do it sdrawkcab)

backwards

3 0

3 years ago

Read 2 more answers

In a study of

o-na [289]

We know that:
Mean = 82 mm and SD = 10 mm ( standard deviation )
82 - 3 * SD = 82 - 3 * 10 = 82 - 30 = 52 mm
82 + 3 * SD = 82 + 3 * 10 = 82 + 30 = 112 mm
Population between 52 and 112 mm is within +/- 3 standard deviations from the mean.
By the 66- 95 - 99.7 % rule it is: 99.7% of the test group.
0.977 * 500 = 498.5
Answer:
99.7 % of the test group have a diastolic pressure between 52 and 112 mm, or 498 men.

5 0

3 years ago

PLSSS HELP IF YOU TURLY KNOW THISS

geniusboy [140]

Answer:

Step-by-step explanation:

$\frac{4}{5} + \frac{2}{5} = \frac{6}{5} \\Simple make it improper, resulting in answer A$

Hope this helps!

4 0

2 years ago