MathMaster logo

MathMaster

  1. Home
  2. general
  3. 30y y y 144
Question

30y - y . y = 144

137

likes
683 views

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

Expert avatar
Murray
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)
Math Question: What is the value of f(x) = 3x² + 5x + 2, where x = 2?
+
Math question: In triangle ABC, angle B measures 45 degrees and angle C measures 90 degrees. If the angle bisector of angle A intersects BC at point D, and AD measures 8 units, what is the length of CD?
+
How many ways can 5 students be seated in a row of 10 chairs?
+
New questions in Mathematics
How to find the value of x and y which satisfy both equations x-2y=24 and 8x-y=117
The strength of Kefexin oral suspension is 100 mg/ml. Nora has been prescribed cefalexin at a dose of 50 mg/kg/day divided in two single doses. Nora weighs 14 kg. How many milliliters of solution for Nora should be given as a single dose?
5/8 x 64
The gross domestic product the gdp for the United States in 2017 was approximately $2.05x10^3. If you wrote this number in standard notation , it would be 205 followed by how many zeros
Imagine that you are in an electronics store and you want to calculate the final price of a product after applying a discount. The product you are interested in has an original price of $1000 MN, but, for today, the store offers a 25% discount on all its products. Develop an algorithm that allows you to calculate the final price you will pay, but first point out the elements.
7273736363-8
224 × (6÷8)
(2b) to the 1/4th power. Write the expression in radical form.
By direct proof, how can you prove that “The sum of any three consecutive even integers is always a multiple of 6”.
Subscribers to the FAME magazine revealed the following preferences for three categories: Fashion 30, Athletics 24 and Business 15. Following these frequencies of observation, compute the chi-square test statistic. At the 0.05 level of significance, would you conclude they are similar?
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.
reduce the expression (7.5x 12)÷0.3
Scores are normally distributed with a mean of 25 and standard deviation of 5. Find the probability that sixteen randomly selected students have a mean score that is less than 24.
Which of the methods below can be used to workout 95% of an amount? a. Dividing the amount 100 and multiply by 95 b. Working out 5% of the amount and taking it away from the full amount c. Dividing 95 by 100 and multiplying the answer by the amount d. Dividing the amount by 95 and then multiply by 100
Using the bank and exact method, calculate the interest on capital 10000 at 12% annual nominal interest rate for the period from 15.3. 2016 until 10/10/2016
Express the trigonometric form of the complex z = -1 + i.
In an orchard there are 360 trees and they are distributed in 9 rows with the same number of trees in each row. 2 are rows of orange trees, 4 of apple trees and the rest are of pear trees. What fraction of the trees in the orchard are of each type of fruit tree? How many trees of each type are there?
How to factorise 5y^2 -7y -52
Read the “Local Communities as Stakeholders: Does Amazon Really Need Tax Breaks?” example on p. 83 in Ch. 3 of Management: A Practical Introduction. In your response, discuss whether you feel that tax breaks for big companies benefit local communities. Describe ways to attract business to a region without having a negative impact on the larger community.
Beren spent 60% of the money in her piggy bank, and Ceren spent 7% of the money in her piggy bank to buy a joint gift for Deren, totaling 90 TL. In the end, it was observed that the remaining amounts in Ceren and Beren's piggy banks were equal. Therefore, what was the total amount of money that Beren and Ceren had initially? A) 120 B) 130 C) 150 D) 160 E) 180

You might be interested in