$MathMaster logo$

MathMaster

Home
general
30y y y 144

Question

30y - y . y = 144

137

likes

683 views

Answer to a math question 30y - y . y = 144

$Expert avatar$

4.5

92 Answers

$30y-y^{2}-144=0$

$-y^{2}+30y-144=0$

$y_{1,2}=\frac{-30\pm \sqrt{30^{2}-4(-1)(-144)}}{2(-1)}$

$y_{1,2}=\frac{-30\pm 18}{2(-1)}$

$y=\frac{-30+18}{2(-1)},y_{2}=\frac{-30-18}{2(-1)}$

$=6$

$=24$

$y=6,y=24$

Frequently asked questions (FAQs)

What is the variance of the following dataset: {4, 6, 8, 9, 12}?

+

What is the value of hyperbolic sine of 2x multiplied by hyperbolic cosine of 3x, where x = 5?

+

What is the product of a complex number and its conjugate?

+

New questions in Mathematics

How do you think the company has increased or decreased its income?

a bank finds that the balances in its savings accounts are normally distributed with a mean of $500 and a standard deviation off of $40. What is the probability that a randomly selected account has a balance of more than $400?

[(36,000,000)(0.000003)^2]divided(0.00000006)

30. In 8 s, a car that starts from rest and moves with uniformly accelerated motion has achieved a speed of 72m/s. How much space must it travel to reach a speed of 90m/s? Sunshine: 450 m

A company that manufactures personal hygiene items purchases machinery for $220,000 that is considered to last 7 years; it is estimated that at the end of the period it will have a salvage value of $1000. Find: to. The depreciation rate. b. The book value at the end of the sixth year.

I need to know what 20% or £3292.75

The thermal representation f(x) = 20 times 0.8 to the power of x is known from an exponential function f. Specify the intersection point with the y-axis

Three squares have a total area of 35.25 𝑐𝑚2 . The larger square has twice the side-length of the middle-sized square. The smaller square has its side length exactly 0.5 cm smaller than the middle-sixed square. Find the side lengths of each of the three squares.

form a key for your lock containing the numbers 2 2 5 8 How many different keys can you form?

Calculate the minimum size of a simple random sample assuming a sampling error of 5% assuming that the population size is 100 elements

factor the polynomial completely over the set of complex numbers b(x)=x^4-2x^3-17x^2+4x+30

94 divided by 8.75

00 piece jigsaw puzzle. the completed puzzle is 10x10. each piech connects to at least 2 other pieces. i plan to assemble by taking pieces out of box one by one. if i've already taken out 2 pieces that dont directly connect, what is the minimum number of additional pieces that i need to draw to in order to guarentee that the original 2 pieces connect?

Find I (Intrest) using simple interest formula of 17700 @ 15% for 4 years

0<x<2π aralığındaki f(x)=x÷2 fonksiyonunun 0 < x < 4π için grafiğini çiziniz ve 0<x<2n için Fourier seri dönüşümünü gerçekleştiriniz.

a coffee shop has 9 types of creamer and 11 types of sweetener. In how any ways can a person make their coffee?

the length of the fenced in area is to be 5 ft greater than the width and the total amount of fencing to be used is 89 ft find the width and length

A small box measures 10 in. by 4 in. by 6 in. high. Find the volume of the box.

To apply a diagnostic test, in how many ways can 14 students be chosen out of 25? if the order does not matter