There’s no picture so I can’t help you sorry :(
A=b+1
a=2b+9
b+1=2b+9
-b from both sides
1=b+9
-9 from both sides
-8=b
b+1
-8+1
-7
You can check your answer...
2b+9
2(-8)+9
-16+9
-7
The smaller is -8 and the larger is -7
8n² + 4n - 16 = -n²
8n² + n² + 4n - 16 = -n² + n²
9n² + 4n - 16 = 0
n = <u>-4 +/- √(4² - 4(9)(-16))</u>
2(9)
n = <u>-4 +/- √(16 + 576)</u>
18
n = <u>-4 +/- √(592)
</u> 18
n = <u>-4 +/- 24.33</u>
18
n = -<u>4 + 24.33</u> n = <u>-4 - 24.33</u>
18 18
n = <u>20.33</u> n = <u>-28.33</u>
18 18
n = 1.1294 n = -1.57389
<u />
Answer:
c<-5.4
Step-by-step explanation:
-5c+2<=27
-5c<27
c<-5.4
Answer:
Step-by-step explanation:
2)
80 +67 +97+ 98 +85 +72 = 499
499/6=83.1666666667
Average: 83.1666666667
3)
a) <em>97</em> <u>93</u> 92 90 90 <u>90</u> <em>86</em> =90
median of Edgars grades for his midterm is 90
<em>99</em> <u>93</u> 93 89 88 <u>88</u> <em>86</em>
median of Edgars grades for his trimester is 89
7)
(z+9+18)= z+27 (remember don't mix the numbers if they are attached to the x)
(z+18+9)= z+27 (because adding is both ways the same)
a) a + b =b + a
Geometry
1.
a) 6x^2
b)The surface area of a cube = 6a^2 where a is the length of the side of each edge of the cube. Put another way, since all sides of a cube are equal, x is just the length of one side of a cube
c) The unit would be sq(squared) feet
