Answer:
First option
Step-by-step explanation:
The result of first expression:
7(6+z) multiply 7 with inside the parenthesis
7(6+z) = 42 + 7z
the result of second expression:
since we need to do multiplying first,
7*6 = 42 and 7*z = 7z
then we add them
42 + 7z this is the same result we found for the first equation
32 pints is the answer to this question
Answer:
Step-by-step explanation:
1.
(-2,0) (0,-7) y2-y1
-----------------
x2-x1
-7-0= -7
0- (-2)= 2 ------>>> -7/2 =m or slope
2.
y= -7/2x+b to find b u plug in one pair of coordinates for example (-2,0)
and use inverse properties to find b
0 = -7/2(-2) + b
14/2 = 7
0= 7+b
-7 -7
-----------
-7=b
3.
y=-7/2x-7
![\sqrt{81 \: + \: 18 \sqrt{7} \: + \: 7}](https://tex.z-dn.net/?f=%20%5Csqrt%7B81%20%5C%3A%20%20%2B%20%20%5C%3A%2018%20%5Csqrt%7B7%7D%20%20%5C%3A%20%20%2B%20%20%5C%3A%207%7D%20)
- Factor the indicated expression:
![\sqrt{(9 \: + \: \sqrt{7} ) ^{2} }](https://tex.z-dn.net/?f=%20%5Csqrt%7B%289%20%5C%3A%20%20%2B%20%20%5C%3A%20%20%5Csqrt%7B7%7D%20%29%20%5E%7B2%7D%20%7D%20)
- Simplified the index, the root and also the exponent using the number 2.
![\boxed{ \bold{9 \: + \: \sqrt{7} }}](https://tex.z-dn.net/?f=%20%5Cboxed%7B%20%5Cbold%7B9%20%5C%3A%20%20%2B%20%20%5C%3A%20%20%5Csqrt%7B7%7D%20%7D%7D)
<h3><em><u>MissSpanish</u></em> </h3>
Answer:
15/7 or 2 1/7
Step-by-step explanation: