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
Vinvika [58]
3 years ago
10

Solve the equation 2x^2 + 4x - 39 to the nearest tenth.

Mathematics
1 answer:
Virty [35]3 years ago
8 0

Answer:

cant be solved, when you try to you get

-1+78 = 77

which is

77 = 77

1=1

So cannot be factored

Step-by-step explanation:

You might be interested in
Nathan just bought a car. He models the value, V, in dollars, of the car after t years as V(t)=21,000(0.861)^t. Based on this mo
Snezhnost [94]

Answer:

Value of the car is decreasing by 13.9% each year.

Step-by-step explanation:

This equation tells us V(t) is the value of the car after a certain time in years, $21,000 is the initial value of the car.  What we need to focus on is on the 0.861 part of this equation.  This means that the price of the car is worth 0.861 or 86.1% of what it was worth the year prior, this means that the price of the car is decreasing over time.  By how much is it decreasing? Well if we consider 1 to mean 100% (since 100 / 100 =1) then we have 100%-86.1%=13.9%.  This means that the value of the car is decreasing 13.9% each year.

6 0
3 years ago
Which ordered pairs could be points on a line parallel to the line that contains (3, 4) and (–2, 2)? Check all that apply.
Aleksandr-060686 [28]

Answer:

Step-by-step explanation:

As we go from (–2, 2) to  (3, 4), x increases by 5 and y increases by 4.  Thus, the slope of the line through (–2, 2) and (3, 4) is

m = rise / run = 4/5.

Use the slope-intercept form of the equation of a straight line:

y = mx + b becomes 4 = (4/5)(3) + b.  Multiplying all three terms by 5, we eliminate the fraction:  20 = 12 + b.  Thus, b = 8, and the equation of the line through (–2, 2) and (3, 4) is y = (4/5)x + 8.

A line parallel to this one would have the form  y = (4/5)x + b; note that the slopes of these two lines are the same, but the y-intercept, b, would be different if the two lines do not coincide.

Unfortunately, you have not shared the ordered pairs given in this problem statement.  

You could arbitrarily let b = 0.  Then the parallel line has equation

y = (4/5)x; if x = 3, then y = (4/5)(3) = 12/5, and so (3, 12/5) lies on the parallel line.

3 0
3 years ago
Read 2 more answers
Through what angle the hour hand of a clock move from 2 to 12?​
Liono4ka [1.6K]

Answer:

30 degrees

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is 1 ??........?
hjlf

Answer:

b

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The ratio of the number of boys to the number of girls on the swim team is 4:2. If there are 24 athletes on the swim team, how m
Daniel [21]

Answer:

We have 8 more boys than girls on the swim team.

Step-by-step explanation:

The ratio of boys to girls on a swim team is represented as:

4 : 2

Total number of athletes is given as 24

Total ratio is given as:

4 + 2 = 6

Step 1

We find the number of boys and girls

Number of boys = 4/6 × 24 = 16 boys.

Number of girls = 2/6 × 24 = 8 girls.

Therefore, since we have 16 boys and 8 girls on the swim team, we have 8 more boys than girls on the swim team.

6 0
3 years ago
Other questions:
  • Given the regular price of an item and the discount rate, how do you find the discount?
    9·1 answer
  • An IQ test is designed so that the mean is 100 and the standard deviation is 12 for the population of normal adults. Find the sa
    9·1 answer
  • M + 5n = p solve for m
    5·2 answers
  • Explain how to subtract two integers in your own words
    13·1 answer
  • Liliana used for dark power crystals to race 14 zombie soldiers she wants to know if she can raise with dark power crystals how
    13·2 answers
  • Which graph represents a phase shift of
    9·1 answer
  • A number of robbers were discussing how best to share some stolen rolls of
    11·1 answer
  • The function f(x) and g(x) are graphed of the set of aces below. for which value of x is f(x)≠g(x)
    7·1 answer
  • Choose the graph that matches the inequality ­ y < –2x + 4.
    15·2 answers
  • PLSSS HELP ILL GIVE BRAINLIEST!!!,!!!
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!