Friday

April 18, 2014

April 18, 2014

Total # Posts: 32

**Math**

Anita says the plus sign + forms 2 pairs of vertical angles. Charles says it forms 2 pairs of congruent angles. Who is correct? Explain.

**Chemistry**

Consider the following equation: TiCl4(g) + 2Mg(l) → Ti(s) + 2MgCl2(l) 3.54×107g of TiCl4(g) are reacted completely. If 7.91×106g of Ti(s) is actually obtained, calculate the % yield.

**Chemistry**

Urea (NH2)2CO is prepared by reacting ammonia with carbon dioxide. The byproduct is water. 637.2g of ammonia are reacted with 787.3 g of carbon dioxide. a. Which of the two reactants is a limiting reactant? Show your calculations (including the correctly balanced chemical equa...

**Lang Arts**

what about 11

**Ms. Sue Lang Arts**

9. d 10. d 11. a 12. b 13. b

**Lang Arts**

plez help

**Lang Arts**

Select the letter that corresponds to the word or words that the italicized phrase modifies or describes. 9. The scientist Jane Goodall was born (in London) in 1934. a. in 1934 b. Jane Goodall c. scientist d. was born 10. In her twenties, she began her life’s work, (the s...

**Math Help**

i got 9 and 12 i just need the rest

**Math Help**

can anybody help me

**Math Help**

8. One nanometer is about 0.00000003937 of an inch. What is this number in standard notation? a. 3.937 x 10^-8 b. 3.937 x 10^8 c. 3.937 z 10^-7 d. 3.937 x 10^7 9. What is 3/8 written as a decimal? a. 2.33333... b. 0.375 c. 0.33333... d. 2.667 10. According to the 2010 census d...

**Math**

What is the answer for number 2?

**Math**

What about the rest?

**Math**

Its not?

**Math**

Okay please tell the right ones it any are wrong. 2. a 3. c 4. a 5. b 6. c 7. a

**Math**

2. Find the product of 2 1/2 and 2/5. a. 2 2/10 b. 2 3/7 c. 2 4/9 d. 2 9/10 3. Which of the following makes the statement true? 1/5^0 = ? a. 1 b. -1 c. -5 d. 0 4. The area of a certian state is 840,000 square miles. What is this area in scientific notation? a. 8.4 x 10^-4 b. 8...

**i don't understand this math**

Plz can you check my answers? 1. b 2. c 3. d 4. a

**i don't understand this math**

1. Which of the following is greater than 4.3 x 10^9 a. 2.1 x 10^9 b. 3.2 x 10^9 c. 5.3 x 10^9 d. 7.4 x 10^8 2. Which of the following is less than 6.5 x 10^-5 a. 1.4 x 10^-3 b. 2.5 x 10^-4 c. 7.8 x 10^-5 d. 4.6 x 10^-6 3. According to the 2010 census, the population of Nebras...

**math**

1. Which of the following is greater than 4.3 x 10^9 a. 2.1 x 10^9 b. 3.2 x 10^9 c. 5.3 x 10^9 d. 7.4 x 10^8 2. Which of the following is less than 6.5 x 10^-5 a. 1.4 x 10^-3 b. 2.5 x 10^-4 c. 7.8 x 10^-5 d. 4.6 x 10^-6 3. According to the 2010 census, the population of Nebras...

**Math 8R - HW Qs. Check**

Yes!!!!!!!!!!!

**math**

1. Which exponent makes the statement true? 1/5^9 = 5^? a. 9 b. -9 c. 1/9 d. - 1/9 2. y^5 x y^14 = a. 2y^19 b. y^60 c. y^19 d. 2y^60 3. w^12/w^18 = a. w^30 b. w^-30 c. w^6 d. w^-6 5. 5^5/5^2 = a. 5^1 b. 5^2 c. 5^3 d. 5^4 Please help me this is all like greek too me. My teacher...

**Math Help Plz**

2.72

**Algerbra**

Also Explian

**Algerbra**

2s^3 – 4r^1 r = 1 and s = 5

**math**

help any body

**math**

here they are 3. a 4. b 5. c if they r wrong plz tell me the right ones

**math**

1. Find the LCD of 3/5 and 1/6. a. 5 b. 6 c. 11 d. 30 2 Add the fractions and write your answer in lowest terms. 2/5 + 1/9 a. 1/15 b. 23/45 c. 3/14 d. 19/45 3. Subtract the fractions and write your answer in lowest terms. 4/5 - 3/8 a. 1/40 b. 1 7/40 c. 7/10 d. 17/40 4. If Sand...

**math**

ok thx

**math**

r u sure they r right

**math**

1. Which of the following numbers is an example of an integer? a. -15 b. 3/5 c. ^7 d. 0.252525... 2. Which statement is FALSE? a. Every integer is a real number. b. The number zero is a rational number. c. Every irrational number is a real number. d. Every real number is a rat...

**lang arts**

I (used) my textbook to study for the exam. the word (used) is it a action verb,helping verb,linking verb, transitive verb?

**math**

Max has 7 blue marbles,4 green marbles,and 3 yellow marbles in a bag. what is the probiblity of Max pulling out a yellow marble.

**what the subject and the pedicate**

Valentine's Day has an interesting history.

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