Exercises 67–76: Use a calculator to evaluate the expression. Round your result to the nearest thousandth. 67. V192 68. V(32 + =') 1.72 - 5.98 70. 35.6 + 1.02 69. |7 – 3.2| 0.3 + 1.5 71. 5.5 – 1.2 72. 3.2(1.1)? – 4(1.1) + 2 1.5 73. 74. 4.32 - V2 + # - 5 4 + V3 5+ V5 76. 75. 15 + 7 2

Q: -7 (5x+2) - 7(2 — 10x) = 423 83.80 O 6.44 11.29 O 12.89

A:

Q: -7.1+(- 1.9)

A: Solving the problem by doing just addition.

Q: Express n = 5 · 13 · 29 = a? + b² using at least three distinct pairs (a, b) E N x N.

A:

Q: (1. 2) (3.-2) (-1.-2) (4.-3)

A: Integral of a function from a to b= area of the function from x=a to x=b

Q: U-5/7=62/3

A: Solve the equation for U as follows.

Q: 2h-3>15

A: 2h-3>15  add 3 both sides 2h-3+3>15+3

Q: 5.5 - x = -4.5 - x

A:

Q: 5/8 - (-1/6)

A: Given expression (5/8) - (- 1/6)

Q: 20/5+5+2*8

A: Consider the given expression

Q: (5*)². (5³)-2 (5-2)³.5-5

A:

Q: Without using a calculator, find the value of 9*, given that (5* )(3* +81)}=45*.

A: Here we will find 9x,

Q: 4. The expression. 0013x-.0845x² +1.6083x+12.5 represents the gas consumption by the United States…

A: Consider the expression which represents the gas consumption by the United States in billions of…

Q: 5 1/6 - 2 1/3

A: Given that 5 1/6 - 2 1/3

Q: What is 20times 600

A: 20 times of 600 is,

Q: simplify x+ y (x + y) 69. 70. . 71. 1- 72. 1 + 1+x +

A: To simplify:  x-2 - y-2x-1 + y-1Note: As per guideline we are allowed to solve one question at a…

Q: The expression 2.5 + 2t gives the cost, in dollars, of t tulips at a flower store. How much money…

A:

Q: -5/8 + 1/10 + 3/4

A:

Q: 5 ( 1.1x + 9 ) = 2 ( -6 - 0.1x )

A: First we solve the bracket and then we rearrange the equation. All the variable are arrange in one…

Q: i-9 what does the =?

A:

Q: -2.8(-8)

A: Product of two negative numbers is a positive number. (Two negatives make positive)