200 Answered Questions for the topic Test Preparation

Test Preparation Geometry Statistics Sat Math

03/10/21

This is an urgent question!

X is a normally distributed random variable with mean 60 and standard deviation 22. What is the probability that X is between 25 and 95? (A) 88.84%(B) 68.44% (C) 78.44%(D) 78.84% (E) All is... more
Test Preparation Geometry Statistics Algebra

03/10/21

The probability a person is infected by certain cold virus is 0.2.

If a random sample of 12 people is taken, what is the probability that at least one person will be infected by the cold virus?(A) 0.2062(B) 0.9313(C) 0.2400(D) 0.0687
Test Preparation Geometry Statistics Algebra

03/10/21

I really need this

A normal distribution has a mean of 0.40 and standard deviation of 0.028. What percentage of observations will live between 0.372 and 0.428?

02/01/21

Test Preparation

01/15/21

My test Failure

i do well on homework and classwork but not my test my GPA is a 4.0 but my test grades are anything but high i just need to understand why.
Test Preparation Math Algebra 1 Algebra 2

11/06/20

how to find the mass ?

you have a sheet of aluminum that has a volume of 9 cm3 and a density of 2.7 g/cm3 calculate the mass of that sheet of aluminum
Test Preparation Study Skills Gmat Verbal

11/04/20

From 500 to 630 on GMAT within a month

Hi everyone, I want to ask the experts: Is it really approachable to get 630 on the Gmat with studying for 1 month giving that I got recently 500 in a mock test? I have 34V and 27Q. I perform... more
Test Preparation Math Algebra 1 Algebra 2

11/03/20

math help test prep 💆🏻‍♀️💆🏻‍♀️💆🏻‍♀️💆🏻‍♀️

b/c = a;c dfg = h;f 2x + 3y = 12;y abc = 1/2;b 8(x - a)= 2(2a - x);x 12(m + 3x) = 18(x - 3m);m v= 1/3pir2h;hv= 1/3pir2(h - 1);h y(a - b) = c(y + a);y x = 3(y - b)/m ; y f = -Gm/r2;G
Test Preparation Math Algebra 1 Algebra 2

10/20/20

solving the equation is so much easier than having to build it by a word problem :(

A scientist needs 10 liters of a 20% acid solution for experiment, she only has a 5% solution and a 40% solution. To the nearest 10th of the liter, about how many liters of the 5% and the 40%... more
Test Preparation Math Algebra 1 Calculus

10/14/20

test preparation 💆🏻‍♀️💆🏻‍♀️

a scientist makes an acid solution by adding drops of acid to 1.2 L of water. the final volume of the acid solution is 1.202 L, assuming the volume is each drop is 0.05 mL, how many drops were... more
Test Preparation Math Calculus Precalculus

10/14/20

test preparation 💆🏻‍♀️💆🏻‍♀️

there are 9 bottles in devins refrigerator. he adds 3 full boxes of water bottles to the refrigerator, then he adds 2 more boxes that each has 1 fewer bottle than a full box, when he’s done there’s... more
Test Preparation Math Algebra 1 Calculus

10/14/20

for test preparation 💆🏻‍♀️💆🏻‍♀️

a bee flies at 6 feet per second directly to a flowerbed from its hive. the beef stays at the flowerbed for 14 minutes and then flies back to the hive at 4 feet per second, it’s away from the hive... more
Test Preparation Math Algebra 1 Algebra 2

10/06/20

sometimes i still don’t know how to do these types of problems

A scientist wants to determine if a type of yeast will make a cake rise. The scientist bakes one cake with the yeast and one cake without the yeast. Which of the following is the variable in this... more
Test Preparation Math Algebra 1 Calculus

10/01/20

remind me please i don’t remember well

Find the approximate side length of a square game board with an area of 128 in2
Test Preparation Math Algebra 1 Calculus

09/25/20

which of the following is an equation of the line that passes through the point (-2,3) and is it’s perpendicular to the graph of the equation y= 3x - 2

a. y = -1/3x + 7/3 b. y = -1/3x + 11/3 c. y = 3x + 9 d. y= 3x - 3
Test Preparation Math Algebra 1 Algebra 2

09/25/20

this question hurts my brain

dylan walks into a video arcade with a pocket full of quarters. He spends them at a rate of nine every half hour until he runs out. If the amount of quarters Dylan has is graphed overtime, which... more
Test Preparation Math Algebra 1 Algebra 2

09/24/20

how many bottles are there?

The equation 3w + 4j = 39 is used to determine the number of water bottles W and the number of juice bottles J that can be bought for \$39. If you purchase 6 bottles of juice, how many bottles of... more

07/22/20

A tank is 4/5 full of water. 40 pounds more water is used to fill the tank completely. How much is the capacity of the tank in pounds?
Test Preparation Math English Elementary Education

07/20/20

In my bag 1/3 of the quarters is the same as 2/5 of the dimes. I have 8 more quarters than dimes. How many coins do i have
Test Preparation Math Trigonometry Sat Math

06/08/20

Help with this math problem. I appreciate it !

Negociar invest a total of 31,500 in two accounted The first account earned a rate of return of 11% (after a year). However, the second account suffered a 9% loss in the same time period. At the... more
Test Preparation Study Skills

05/13/20

How do I ace standardized tests?

Test Preparation Math

03/03/20

e/r=i solve for r

why can't you multiply by 1/e to both sides? I got r = i/e but the equations aren't equivalent.
Test Preparation Math

02/25/20

What is the difference between ASA and AAS triangles and how do you read those triangles

Test Preparation Psat 8/9

01/30/20

PSAT 8/9 tutoring

Do you have experiance in tutoring PSAT 8/9 test?

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