renato24d

Compare with plastic with low densities, plastic with high densities generally have:

1. lower strength and higher ductility

2. higher strength and lower ductility

3. lower moisture and higher gas permeability

4. higher moisture and lower gas permeability

the amount of stress applied to a material divided by the elastic strain caused by that stress is a measure of the material's:

a. ductility

b. toughness

c. stiffness

d. brittleness

what is the appropriate maximum carbon content of ferrous metal alloys?

a. 10%

b. 7%

c. 6%

d. 4%

A person invested $10,000. The greater part is invested at 6% and the remainder at 5%. The annual income from the greater part is $160 more than the annual income from the smaller part. What is the smaller part of the investment?

A. $1500

B. $3000

C. $4000

D. $4500

Which of the following is an intermediate step if given equations are to be solved by eliminating one unknown by ADDITION?

5x+5y=1

3x-8y=5

A. 40x+40y=8 ___ 15x-40y=25

B. 15x+15y=3 ___ 15x-40y=25

C. 5x+5y=1 ____ y=3x-5/8

D. x=1-5y/5 ____ x=5+8y/3

A bicyclist and a hiker leave the same place at the same time and travel in the same direction. The bicyclist travels three times as fast as the hiker. At the end 3hr they are 24 miles apart. How fast does the hiker travel?

A. 4mph

B. 8mph

C. 10mph

D. 12mph

The tens' digit of two-digit number is 3 more than the units digit. The number is 8 more than six times the sum of the digit. FInd the number.

A. 85

B. 74

C. 52

D. 41

Solve the following equations:

4ax+by=11ab

8ax-5by=ab

A. x=3a,y=2b

B. x=2b,y=3a

C. x=3b,y=2a

D. x=2a,y=3b

The sum of two numbers is 89. Adding four times the first number to the second number gives 155. Which one of the following equations expresses this problem algebraically?

A. (x-89)+4x=155

B. 89+4x+155

C. 4x+(89-x)=155

D. 4(89+x)+x=155

Ann's age is seven-tenth of Bill's age. In 4 years Ann's age will be eight-eleventh of Bill's age. How old id Bill now?

A. 28 B.33 C.40 D.68

The difference between two number is 15. When twice the smaller number is subtracted from three times the larger number, the difference is 58. What is the larger number?

A.13 B.18 C. 28 D. 33

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im looking for this girl i met a couple of year ago