1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andre45 [30]
4 years ago
14

Factor 15z^2+17z-18 please show work

Mathematics
1 answer:
siniylev [52]4 years ago
7 0

There is no common factor between 15, 17 and 18 because 17 is prime.  

15z² +17z - 18 =  

d = 17² - 4.15.-18  

d = 289 + 1080  

d = 1369  

z = (-17 +/- \/1369) : 2 * 15  

z = (-17 + 37) : 30  

z' = 20 : 30 = 2/3  

z" = (-17 - 37) : 30  

z" = -54 : 30 = -1.8  

<><

You might be interested in
Princess Anna decides to make a birthday cake for Queen Elsa’s birthday! Anna, Olaf, Kristoff and Sven all add a different ingre
kramer

Answer:

Sven used Sugar.

Step-by-step explanation:

The question gives the amount of each ingredient left after making the cake.

\frac{1}{4} = 0.25 - Flour

\frac{1}{3} = 0.33 - Butter

\frac{1}{2} = 0.50 - Sugar

\frac{5}{8} = 0.625 - Eggs

It says that Anna used most of her ingredients, this means she has used the ingredients which has the least amount left. The lowest out of the fractions above is \frac{1}{4}. So Anna used Flour.

Also Olaf used the least of his, meaning he has most of his ingredient left. Highest value in the list is \frac{5}{8}. So Olaf used Eggs.

Kristoff used more than Sven, means that Kristoff has less of his ingredient left compared to Sven. So lower value out of the values left goes to Kristoff, that is \frac{1}{3}. So Kristoff used Butter.

So we are left with Sugar and Sven.

So Sven used Sugar.

7 0
3 years ago
Read 2 more answers
Please help
Ipatiy [6.2K]
The answer is c hope it helps:)
3 0
3 years ago
1. the sum of the first n odd positive integers is 64. what is the value of n ?
chubhunter [2.5K]
  • The value of the n is 8.
  • There are 7 positive integers between 100 and 200 which are divisible by 14.

<u>Step-by-step explanation:</u>

The sum of first n odd positive integer is n^2. The nth odd number is 2n-1.

                          i.e. 1 + 3 + ........+ (2n-1) = n^2.  

                                1 + 3 +..........+ (2n-1) = 64

                                                                n^2 = 64

                                                                    n = 8.

The positive integers between 100 and 200 which are divisible by 14 are 112, 126, 140, 154, 168, 182, 196. It is obtained by the multiples of 14 between 100 and 200.

100 = 7 * 14 + 2

200 = 14 * 14 + 4. The answer is 14 - 7 = 7

The seven numbers are

                        14 * 8 = 112

                        14 * 9 = 126

                        14 * 10 = 140

                        14 * 11 = 154

                        14 * 12 = 168

                        14 * 13 = 182

                        14 * 14 = 196

6 0
3 years ago
The population in the United States in 2015 was 321 million people. It is projected to increase to 438 million people by the yea
elixir [45]

Answer:

5

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The function f(x) is shown in this graph.
Minchanka [31]
Where’s the graph?????? The slope of g(x) is -2
8 0
3 years ago
Other questions:
  • A parabola has its vertex at (4,-2). one of the zeros is 1. what is the other zero?
    5·1 answer
  • You want to include photos on the cover of a program for the school play, two across the page. The cover is 6 1/2 inches wide an
    12·1 answer
  • ∆ABC is transformed with the center of dilation at the origin.
    12·1 answer
  • I'm really confused about question D and need help does anyone know what it is?
    11·2 answers
  • 3.21 x 10^4 in standard notation
    6·2 answers
  • Can somebody go answer my last question i just posted plss i got 4min left or it gets closed
    9·1 answer
  • Equation 5b-12+2b=16
    14·2 answers
  • The school library has 300 books on the topic of
    14·2 answers
  • Pls hurry will give brainliesttt
    14·1 answer
  • "Based on the following construction, which of the following are true? choose all that apply."
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!