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
jarptica [38.1K]
2 years ago
10

7x^2+16-8

Mathematics
2 answers:
I am Lyosha [343]2 years ago
5 0
First step (7x2 - 16x) - 8 = 0
Second step Factoring 7x2-16x-8

The first term is, 7x2 its coefficient is 7 .
The middle term is, -16x its coefficient is -16 .
The last term, "the constant", is -8

Step-1 : Multiply the coefficient of the first term by the constant 7 • -8 = -56

Step-2 : Find two factors of -56 whose sum equals the coefficient of the middle term, which is -16 .
All of that said it’ll be 2.708
How I got 2.708 is x =(16+√480)/14=(8+2√ 30 )/7= 2.708
And 0.422 is x =(16-√480)/14=(8-2√ 30 )/7= -0.422
lyudmila [28]2 years ago
4 0

Answer: 0.45  and -2.74

Step-by-step explanation:

You're going to want to use the Quadratic Formula, so (-b±√(b^2-4ac))/2a.

When you plug in you should get -16 ± √16^2-4(7)(-8)/2(7)

-16± √(256+224) all divided by 2 x 7 or 14

(-16 ± 22.3607)/14

0.45  and -2.74 are your answers

You might be interested in
A chalkboard has a perimeter of 18 ft and is 6 ft long. Find the height of the chalkboard
MakcuM [25]
P = 2H + 2L
L = 6
P = 18
18 = 2H + 2*6
18 = 2H + 12
6 = 2H
H = 3 ft
3 0
3 years ago
Read 2 more answers
Scientists estimate that about 14 million species exist, and only about 50% of them have been studied and named. About how many
ra1l [238]

Answer:

About 7 million

Step-by-step explanation: because half of 14 is 7 then add the million to it

5 0
3 years ago
Read 2 more answers
75 % of the students are boys . There are 24 boys . What is the total number of Students
azamat

Answer:

32 students

Step-by-step explanation:

24 divided by .75 is 32

6 0
2 years ago
Which list of vaules is ordered from lest to greastest?
inessss [21]
The answer is B it's ordered from least to greatest
6 0
3 years ago
Read 2 more answers
Can I have the answers to EVERY question?
frozen [14]
Where are the questions?
5 0
2 years ago
Read 2 more answers
Other questions:
  • How many different arrangements of the letters in the word PARALLEL are there ?Type a numerical answer in the space
    5·1 answer
  • A professional baseball team will play 1 game Saturday and 1 game Sunday. A sportswriter estimates the team has a 60% chance of
    5·1 answer
  • What is the value of the expression when n=3
    5·2 answers
  • Karen is using a number line to represent the doors in the school hallway. She labels 0.25, 0.5, and 0.75 on the number line as
    15·1 answer
  • What is the value of y?<br><br> 2x+3x=105<br> x+2y=65
    11·2 answers
  • NEED HELP WITH THIS GEOMETRY PROBLEM
    9·2 answers
  • Plz help me well mark brainliest if you are correct!!....
    10·2 answers
  • Nina is making pink candles to use as decorations on Valentine's Day. She melts red and white wax together and pours them into a
    15·1 answer
  • The volume of this cylinder is 7500m
    14·1 answer
  • Find the total surface area of this cuboid
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!