300/90+21=

whats the formula for the area of a circle?

7x+11y=-5

I really need help with this homework.Its like this:f(x)=x-1/2 g(x)=x+2/3

I can't figure out how to simplify this: 3x/2 + 3 - x

Are there any sounds-a body of water- in Africa?

what is a good slogan for neon?

Is dictatorship part of democratic

In addition to sight how else do fish sense their surroundings?

Why is it important to understand rational exponents?

15mm to dam

3(x-2)= 4-(x-2)

what is the relationship between potential differance and resistance

6. Which three lengths CANNOT be the lengths of the sides of a triangle? A.25 m, 16 m, 10 m B. 15 m, 13 m, 12 m C. 18 m, 5 m, 10 m D. 8 m, 8 m, 15 I think its A And if I'm wrong please explain the answer

math
At the end of the 8th grade,Lin was 3.6 feet tall.Over the next two years he grew 1.2 feet tall. How tall was Lin at the end of the 10th grade

Physics

mary has \$500 in her savings account and she buy a pair of shoes every week for \$125 write a function

Major sources of income for the Mexican economy include all of the following except; a. agriculture. b. tourism. c.the technology industry. d.petroleum extraction

Biochem

Algebra

Descriptive writing (300-500words) 'by the waterside' Describe some of the people and activities that make place there.

i need help making up a story base on any topic using allusion in them

How many grams of kno3 can be dissolved in 100g of h2o at 50°c

Math (trigonometry)
MONDAY  December 3, 2012 SCHOOL SUBJECTS Art Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th ...

Simplify: (1-i)^3 Here's how I break it down using the formula (x-y)^3 but I just don't know how to get to the final answer. Please help. = 1-3i+3(i)^2-(i)^3 Thank you

What was the most important "stepchild" of the Byzantine civilization? Poland, the middle east, Italy, or russia

How do you multiply algebraic expression such as..... (5x^3)(4xy^2)

1.3 pounds of a material with a density of 3.7 g/mL would occupy what volume in liters?

how did islamic civilization spread to europe africa and asia

science-biology

Question
I'M CURIOS SO DON'T JUST JUDGE ME AND BE RUDE i'M REALLY CURIOUS AND i FORGOT TO ASKED THIS QUESTION. DO NOT JUDGE ME!!!! Do I start taking SAT's and ACT's in grade 10th or 11th/12th grade???? I'm really curious.

How did the ideas of Enlightenment led to changes in European Music and Literature during the 18th Century.

How does the Constitution provide for the system of federalism in the American form of government?

Math
Determine the coordinates of the endpoint of a segment CE with one endpoint at C(3,10) and a midpoint at (-1,-6). Disclaimer: This is 10th grade geometry.

-What contains DNA? -Where is DNA found?

possible options of resolving an attempted murder case?

How many grams of CuSO4.5H2O are needed to prepare 100. mL of a 0.to M

To what volume should 5.o g of kcl be diluted in order to prepare a o.25 m solution

Which of the following molecules is polar? NCl3, NO2, H2S, or SiH4

Will Na2CrO4 react exactly the same as Na2CrO7 when mixed with Pb(NO3)2

How many grams of water vapor (H2O) are in a 10.2 liter sample at 0.98 atmospheres and 26°C?

i have an equation; x^2+3x-18=0. i am given one of the roots, of which is 3, but how do i find the other root.

Describe the geography of Southern South America and how this geography influences economic activity?

A volume is measured experimentally as 4.5 mL. What is the percent error, given that the correct value is 4.17 mL? answer units in %

What is the hydroxide ion concentration in a solution with [H3O+] = 7.67*10^-9 M?

I am having a hard time starting my paper on Life of Pi by Yann Martel. My thesis is: If Richard Parker is Pi Patel then Pi is God. I don't know how to begin.

Consider the following chemical equation: NaOH (aq) + HCl (aq) ® NaCl (s) + H2O (l), the reactant NaOH?

how do you calculate the volume of the aluminum block from the apparent change in the volume of water in the cylinder?

change 114/8 to a mixed fraction in simplest form

What is the role of the state governments under the articles of confederation?

what is 670.8/1000000000 and then what is 3.0 * 10 to the 8th power divided by the top answer ...

What are 2 complications in the novel, The Plague by Albert Camus?

If a circle has a diameter of 7inches, what is the circumference rounded to the nearest whole number? Use pi=3.14

its werid finiding 8x - 13 and 7x + 11 but idk if i should add and equl to 360 its paralleograms and finding x its a triangle please help

what is the area of 2 triangles whose legs are 2 feet each and touch side to side???

why does Henry believe that compromise with the British is not a workable solution?

how many moles of anhydrous MgSO4 are in 2.04grams of MgSO4

calculate the mass of the water of hydration if a hydrate loses 0.025 mol of H2O when heated

a rock with a mass of 8kg falls from a height of 7m what work was done

How do find the speed of a marble after falling from rest a distance of 1.2 m?

What is the frequency of a photon with a wavelength of 2.50 102 nm? (The speed of light in a vacuum is 2.998 108 m/s. Planck's constant is 6.626 10-34 J · s.

The ultimate goal of all the explorations launched by the Europeans from the fourteenth century onward was

How did the obedience to 10 commandments influence the ideas of the Social Contract?

scientist needs 5L of 12% solution. She has on 10% and 17% solution. How much of each does

a solution of 30 percent by weight has a density of 0.96g/mL at 25 degree celcius.find the molarity and molality.

A metroid entering Earth's atmosphere has a speed of 70.0 km/s and a kinetic energry of 2.56 X 10^15 J. What is the mass of the meteroid?

What would be the percentage composition of carbon in 10g sample of methane is?

how can a U.S. citizen whose income is in the top one percent talk about scarcity ?

Which expression repeersents the phrase'' twice the quotient of 50 and the sum of a number y and 8?''

Write each power as a product of the same factor. 5^4 a. 5 × 5 × 5 × 5 b. 4 × 4 × 4 × 4 × 4 c. 5 × 5 × 5 × 5 × 5 d. 5 × 5 × 5 My answer c.

When using a calorimeter with two chambers what are the possible sources of error?

perimeter of a regular pentagon with side measurements of 57 centimeters

i want to make an project on safer construction practises for tsunami only want 10questions on this topic

i have to make a project on safer construction practises for flood help me but want only 10 questions on this topic

compare and contrast the two prevailing winds that blow over Afica in June and September?

Bert viewed the hot dog provincial, beliving that to eat such a disgusting food was beneath him

the third root of 3, times the square root of 9

how can i make an easy working model in physics for class 10 holiday home work

resources are being used up at a faster rate than they can be replaced

Triangle ABC is an equilateral triangle.AD=10 What is the length of CD? Give your answer to the nearest whole number.

If you heat a 5 L balloon from a temperature of 250 C to 500 C , its me volume will be?

a rhombus has a perimeter of 44 centimeter and a diagnol 12 centimeters long. wat the area?

the circle is circumscribed by the pentagon as shown (not drawn to scale). If QZ=10, YX=9, XW=9, UW=17, and SU=10, find the perimeter of the pentagon.

how to solve triangles with parrellel lines running through them!

how does annie dillard expreses her analysis for "transfiguration"?what is she mostly talking about?

The addition of which nitrate salt will cause a decrease in the concentration of I-(aq)? Pb(NO3)2 Ca(No3)2 LiNo3 KNo3

Why is diffusion insufficient to meet the oxygen requirement of multicellulars like us?

determine m given that m>0 and the points (m,3) and (1,m) lie on a line with slope m

volume of 8.00 grams of hydrogen gas at 32.0 degrees celcius and 1.50 atm

Triangle POB has vertices: P(0 , 4) O(-3 , 0) B(3, 0). Determine the orthocentre of the triangle.

what chemicals are being added together in the chemical equation of 2HCL + Ca -> CaCl2 + H2

What is the effect of Prozac on OCD, falling in love

What were the effects of the Balkan Wars that led to the Revolution during the Age of Nation States? (OTTOMAN EMPIRE)

What were the complications of decrees in the Ottoman Empire during the Age of Nation States?

how much heat does it take to convert 20g of water to steam at 100c?

I need help on solving: How many grams of water are obtained if 487.8 grams of carbon dioxide are formed?