Answer:
- 40
Step-by-step explanation:
B + 24 + 7b + 4b = 180
12b + 24 = 180
12b = 156
b = 13
1. <span>12(x − 4)
</span>2. <span>x5
</span>3. <span>The quotient of some number and ten
</span>4. <span>b − 8
</span>5. <span>The quotient of four times some number and six
</span>6. <span>3x + 7
1. x and -4 are multiplied by 12
2 raided to this 5th power is an exponent
3 quotient means division
4 less than means subtraction
5 division means quotient, list numerator first then the denominator
6 product of is multiplication and more is an addition.</span>
X^2 = 9x + 6
x^2 - 9x - 6 = 0
use quadratic formula : (-b (+-) sqrt b^2 - 4ac) / (2a)
a = 1, b = -9, c = -6
now we sub
x = (-(-9) (+-) sqrt -9^2 - 4(1)(-6)) / 2(1)
x = 9 (+-) sqrt 81 + 24)/2
x = 9 (+-) sqrt 105) / 2
x = 9/2 + 1/2 sqrt 105 or x = 9/2 - 1/2 sqrt 105
Answer:
the answer for number 4 is c
