
the most basic things of all the basics that middle school should've taught you
Distribute the negative, i.e., multiply by negative one, turning inside into negative two x minus six, then solve to avoid the undistributed answer.
i made it in article form to give u easy access if u forget <3
Identify mean, median, and mode from the data; compute the mean by summing values and dividing by 16; locate the median via bar graph, and note the mode is three.
Identify the domain as the x-values of the graph, excluding x = 2 where the denominator is zero, and the range as all y-values.
this way is much faster than the ways that are usually taught at school, and much faster than the quadratic formula, so because the math ACT is a super fast-paced test, I advise you to learn this.
Learn exponent rules for addition, subtraction, multiplication, and division, including negative exponents. Explore factoring and applying roots, like square roots and cube roots, with variables such as x and y.
Apply the interior angles rule for triangles and quadrilaterals, with sums 180 and 360 degrees. Solve for x by combining 4x+5x+6x to 15x = 180, yielding x = 12.
Explain how to use arithmetic sequences and the sum formula to compute both the sixth birthday deposit and the total amount deposited in Ricardo’s daughter's account.
Master matrix operations, including addition and subtraction for matching dimensions, and perform multiplication; learn determinants for 2x2 cases for the ACT prep.
Use the similarity of right triangles to form a 4 to 5 ratio, link it to the 24-inch hypotenuse, and cross-multiply to find the missing side, which is 30 inches.
Use the Pythagorean theorem to test for a right angle and solve for BD with the given distances. The calculation yields BD = 1500.
Compute the probability that both of Miss Chen's children are drawn by multiplying the per-grade chances, 1/20 for grade three and 1/15 for grade four, yielding 1/300 (0.003).
Solve a constant-speed word problem by converting 18 miles in 20 minutes to mph, setting up a ratio, and cross-multiplying with answer choices to find the lowest feasible speed limit.
Use the least common multiple to solve a word problem with two signs flashing every 8 and 12 seconds, and find the next simultaneous flash after 24 seconds.
Use cross-multiplication on capture-recapture data: 108 deer tagged and released, 54 later captured with 36 tagged, to estimate the county deer population via the DNR proportion.
btw you must memorize this formula
Learn how to write circle equations from center and radius using the standard form (x-h)^2+(y-k)^2=r^2, with examples using centers (4,-3) and (0,-1) and radius 5, including sign changes.
Apply a system of two linear equations to solve for x (apples) and y (oranges) using 3x+4y=347 and 12y=636, then compute the maximum apples purchasable with a $10 budget.
btw this is not a very common question on the ACT, but regardless, I think you should know how to read a protractor it's 99% common sense
Analyze how to determine feasible x and y values by plugging in numbers, checking constraints like x+y=0 or x+y=10, and verifying whether x lies between 0 and 5.
Solve a two-variable system by elimination using x−y=5 and x+y=2, derive x=7/5 and y=3/5, compute x/y=7/3, and verify the final answer matches the question to avoid tricks.
Explore sine, cosine, and tangent equations and graphs, detailing amplitude, period, and shifts; distinguish sine and cosine graphs, and apply formulas for period and left-right and up-down shifts.
Discover how to add fractions by converting to a common denominator, multiplying the top and bottom by a value that acts like one, and combining to obtain (w+2)/w^2.
Identify digits in two three-digit numbers as a, b, c and d, e, f, noting hundreds, tens, and ones, and explain that a difference greater than 100 implies hundreds digits.
Multiply two variables on a number line using A = -0.75 and B = 0.5 to place the product around -0.375, which lies between A and zero.
Calculate the area of a triangle by selecting a base and the corresponding height, determined from coordinates, then multiply one half by base times height.
if u forgot about which numbers are rational and irrational, then go back to "the types of numbers" video in the first section "all the basics"
Apply the pythagorean theorem on the coordinate plane to solve for x from a 1:3 ratio, extend to 4x, and test points to pick C, option D (≈26.8).
Learn the basics of logarithms by converting between exponential and logarithmic forms, such as log_x 8 = y, where x^y = 8, and identify base and exponent.
The lecture explains the law of cosine, shows how three variables determine an unknown, and applies it to a 17,16,15 triangle to identify the smallest angle opposite the shortest side.
Explore the ellipse equation (x-h)^2/a^2 + (y-k)^2/b^2 = 1, identify the center (h,k) and radii a and b, and locate the foci along the major axis using the distance sqrt(a^2 - b^2).
Explain how a standard deviation graph shows data within ranges from the mean. Note that 68% lie within one standard deviation, 95% within two, and 97.7% within three.
Determine the acid concentration in solution x by a mixture equation with 60 ml at 40% acid and 40 ml of solution x to produce 100 ml at 36% acid.
- Learn all of the material for a perfect 36 in SHORT 1 MIN VIDEOS.
This course uses an innovative approach that combines short videos, examples from real ACT tests, and quizzes, allowing you to grasp concepts quickly and effectively. The bite-sized lessons are made to be zone-out-proof and can be easily integrated into your schedule. The short quizzes are made to help you absorb critical information effortlessly.
"Why are these videos so short?" you may ask.
It's because I value your time. I don't do fluffy introduction videos or explain wHy tHE ACT is IMporTant. Obviously, if you're here, it is because you want to improve your score, not because you want to waste your time listening to people introduce themselves.
Throughout this concentrated course, we'll cover only the topics tested on the ACT using examples from past ACT tests, so no wasting your time, and we'll cover how to answer specific types the questions on the ACT. This last one may seem a bit self-explanatory, but because many students do it wrong, they waste precious time on a test that already doesn't give them much.
Moreover, I GOT YOU IF YOU NEED TO CRAM. In this course, I will let you know if a concept is one that you SHOULD CRAM or shouldn't cram if you do not have time.
So yeah. Save your precious time, improve your ACT score, and get those scholarships for the price of a sweatshirt.