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
Ainat [17]
3 years ago
7

Find either of the values of x 2x^2+3x-2=3

Mathematics
1 answer:
Serjik [45]3 years ago
8 0

Answer:

x = 1 or x = -5/2

Step-by-step explanation:

Solve for x over the real numbers:

2 x^2 + 3 x - 2 = 3

Divide both sides by 2:

x^2 + (3 x)/2 - 1 = 3/2

Add 1 to both sides:

x^2 + (3 x)/2 = 5/2

Add 9/16 to both sides:

x^2 + (3 x)/2 + 9/16 = 49/16

Write the left hand side as a square:

(x + 3/4)^2 = 49/16

Take the square root of both sides:

x + 3/4 = 7/4 or x + 3/4 = -7/4

Subtract 3/4 from both sides:

x = 1 or x + 3/4 = -7/4

Subtract 3/4 from both sides:

Answer: x = 1 or x = -5/2

You might be interested in
The drama club is printing t-shirts for its members. The printing company charges a certain amount for each shirt plus a setup f
Setler [38]

Answer: $7.

Step-by-step explanation:

It is given that the printing company charges a certain amount for each shirt plus a setup fee of $40.

Let x be the cost of each t-shirt.

There are 21 students in the drama club. So, total cost of 21 t-shirts is

\text{Total cos}=40+21x

It is given that the t-shirt order costs a total of $187.

40+21x=187

21x=187-40

21x=147

Divide both sides by 21.

x=\dfrac{147}{21}

x=7

Therefore, the cost of each t-shirt is $7.

4 0
3 years ago
What is cosθ = _____ based on this image<br> a)-3/5<br> b)-4/3<br> c)-4/5<br> d)-3/4
Tanzania [10]
A yes b no c no d yes
7 0
3 years ago
Let f(x) = x2 − 8x + 5. Find f(−1).
Westkost [7]
F(x) = x^2 - 8x + 5

f(-1) = -1^2 - 8(-1) + 5
f(-1) = 1 + 8 + 5
f(-1) = 14 <==
3 0
3 years ago
Read 2 more answers
A local minimum of a function is its: A) smallest value of the function over its entire domain. B) largest value of the function
Hunter-Best [27]

Answer:

D

Step-by-step explanation:

7 0
3 years ago
Suppose you go to a company that pays 0.05 for the first day, 0.1 for the second day, 0.2 for the third day and so on. If the da
tekilochka [14]

Answer:

I think the correct answer is $26,843,545.6

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • suppose y varies directly with x, and y = 8 when x = -6. what direct variation equation relates x and y? what is the value of y
    5·1 answer
  • A triangle has one angle that measures 64 degrees, one angle that measures 41 degrees, and one angle that measures 75 degrees.
    14·1 answer
  • Can anyone help me as soon as possible??
    13·1 answer
  • Sarah competes in a long jump competition.
    8·1 answer
  • The pyramid has a square base that is inscribed in the circular base of a cone. Draw an image of the composite shape of the base
    6·1 answer
  • 1.find the square root V625​
    10·2 answers
  • Please help i need help with this
    15·1 answer
  • Determine the intercepts of the line.<br> -4x+7y=3
    11·2 answers
  • Write an equation for the function that includes the points ( 1, 4/5) and ( 2, 2/3).
    14·1 answer
  • A group of children made 1,200 snowflakes in 3 days. They made 30% of the snowflakes on the first day of the project. On the sec
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!