# Posts by CAMILA

Total # Posts: 28

**chemistry**

As when forming a hydroxide the ion OH is used in this manner Metal(OH)valence of metal does that mean that if my valence is 2 as with calcium,i have 2 molecules of oxygen and two of hydrogen??

**Math**

As most of you are teahers,I would like to know what topics 12th grade admission exams take into account. Thanks in advance.

**Chemistry**

what type of reaction occurs in Al+SnCl4 ? and what is the balanced equation

**math**

A store sells 3 ears of corn for $1. They round prices to the nearest cent as shown in the table. Tell whether you would describe the relationship between cost and the number of ears of corn as a proportional relationship. justify your answer

**English help :)**

A..

**English help :)**

No where, so maybe D or C. It doesn't talk about her struggle just yet so i'm gonna go with D? maybe..

**English help :)**

Aunt Elizabeth’s Dream Matthew Ramirez 1United States, 1919. Hanna and her sister, Ali, anxiously await their mother’s return. Their mother, who is the niece of the late Elizabeth Cady Stanton, is out voting for the first time since the passage of the Nineteenth ...

**math**

explain how 8 ten thousands can be equal to 80 thousands

**geometry**

-4x+3y=3 7x-9y-6 solve

**math**

Josh completed 2 math problems in 2 minutes. Julia says he did 3/5 of a problem each munute. is she correct?

**Calculus**

dt= 2.5+x(dx) 2.5+25=27.5 dx=1 --- because change on x (26-25=1) so dt=27.5(1)= 27.5ft

**Statistics**

Excluding job benefit coverage, approximately 51% of adults have purchased life insurance. The likelihood that those aged 18 to 24 without life insurance will purchase life insurance in the next year is 13%, and for those aged 25 to 34, it is 27%. Find the probability that a ...

**Statistics**

Two flower seeds are randomly selected from a package that contains 7 seeds for red flowers and 13 seeds for white flowers (a) What is the probability that both seeds will result in red flowers? (b) What is the probability that one of each color is selected? (c) What is the ...

**Geometry**

10.4

**Math**

Ms. Nikkel wants to divide her class of 23 into 4 equal teams is this reasonable? Why or why not?

**Math**

18 multipy by 12 equals 216

**physics**

It will be 87.12m at the time of 1.93sec

**Math- Alg 2**

Which logarithmic equation is equivalent to the exponential equation below? 3^x=28

**Math- Alg 2**

The number of computers sold by BCC depends on the dollar amount, x, that they spend on advertising. How many computers will they sell by spending $80,000 on advertising? Round to the nearest whole number and do not include units in your answer. N(x) = 100 + 20 * In(0.25x)

**mystery number**

What is the three digit mystery number? It is less than 300. The tens digit is 4 more than the hundreds digit. The sum of the digit is 9. The hundreds digit is 2 less than the ones digit.

**English**

5

**physical science**

suppose one of your test tubes ha a capacity of 23 mL. you need to use about 5 mL. of a liquid. describe how you could estimate 5 mL

**statistics**

a password consists of two letters followed by a five-digit number. how many passwords are possible if (a)there are no restriction and (b)none of the letters or digits can be repeated? what is the probability of guessing the password in one if there no restriction?

**Math**

A farmer wants to know the area of a garden that is 312312 meters by 125125 meters. He uses the given model for help. Which expression can be used to find the area in square meters?

**Math**

You deposited $1200 dollars in a savings account that earns a simple interest rate of 3% per year. How many years do you need to keep the money in the account to earn $252 in interest?

**4th grade**

The donkeys and the car win because 2.5 donkeys equal 1 elephant

**Chemistry**

NO will also form a hydrogen bond.

**Math**

Can someone please explain this problem to me? I would appreciate it very much. 1. y=x^2 - 2mx + (2m + 3) 2. D= b^2 - 4ac 3. D= (-2m)^2 - 4(1)(2m - 3) 4. 4m^2 - 8m + 12 5. 4(m^2 - 2m + 3) 6. 4(m + 1)(m - 3) m (> or = to) 3, m (< or = to) -1 Then you draw the parabola ...

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