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
maw [93]
3 years ago
7

Solve for x. write both solutions, separated by a comma 2x^2-7x-4=0

Mathematics
2 answers:
avanturin [10]3 years ago
5 0
2x^2-7x-4=0

2x^2-8x+x-4=0

2x(x-4)+1(x-4)=0

(2x+1)(x-4)=0

x=-1/2, 4
lesya [120]3 years ago
3 0
Hi again

2x² - 7x - 4 = 0
Again, all you have to do is factor left side
(2x + 1)(x - 4) = 0
Set factors equal to 0
2x + 1 = 0 or x - 4 = 0
2x = 0 - 1 or x = 0 + 4
2x = - 1 0r x = 4
x = -1/2 or x = 4

Answer : (-1/2, 4)
You might be interested in
Please help will give Brain for it!!
Lyrx [107]
Scale factor:
10/4= 2.5
X = 5 x 2.5 = 12.5
Y= 8/ 2.5 = 3.2
Z= 15/2.5 = 5
4 0
3 years ago
What is the missing value of 5x-2y=30 (8,)
AnnZ [28]

Answer:

In this equation, we can start by understanding that "x" has a value of 8, as given in the ordered pair. When multiplied by 5, this leads to "40 - 2y = 30". Next, we can subtract 40 from both sides of the equation. This leads us to a value of "-2y = -10". The next step would be to divide both sides by -2 as a way of isolating "y", which leads us to a final value of "y = 5". The final ordered pair would be (8,5).

7 0
3 years ago
What’s the equation for the order pairs (1,-5) and (-2,5)
liq [111]

\bf (\stackrel{x_1}{1}~,~\stackrel{y_1}{-5})\qquad
(\stackrel{x_2}{-2}~,~\stackrel{y_2}{5})
\\\\\\
slope = m\implies
\cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{5-(-5)}{-2-1}\implies \cfrac{5+5}{-2-1}\implies \cfrac{10}{-3}


\bf \begin{array}{|c|ll}
\cline{1-1}
\textit{point-slope form}\\
\cline{1-1}
\\
y-y_1=m(x-x_1)
\\\\
\cline{1-1}
\end{array}\implies y-(-5)=-\cfrac{10}{3}(x-1)\implies y+5=-\cfrac{10}{3}x+\cfrac{10}{3}
\\\\\\
y=-\cfrac{10}{3}x+\cfrac{10}{3}-5\implies y=-\cfrac{10}{3}x-\cfrac{5}{3}

6 0
3 years ago
Your interest is $72, your principal is $600 and the rate is 4%. How much time will you need to pay off the loan?
hram777 [196]

Answer:

3 years

Step-by-step explanation:

A=P( 1+rt)

A= Total amount

P= Principal

r = yearly interest

t= time in year

672=600(1+0.04t). Distribute

672=600+600x0.04t

72= 24t

t= 3 years

8 0
3 years ago
Shawn planned to run 4.2 miles every day, but yesterday he only had time to run 0.2 of that distance. How far did Shawn run yest
Fynjy0 [20]

Answer:

That would be 4.0

Step-by-step explanation:

if you have 4.2 take away 0.2 that would be 4.0

4.2

0.2

-__

4.0

Hope this helped regards

4 0
2 years ago
Other questions:
  • How do i get the answer to this question 1.7h-(1.4h+5)
    14·1 answer
  • PLease find attached the question
    5·1 answer
  • Rate of change (slope) written as an expression 7n-23
    5·1 answer
  • You need to buy enough sand to fill a sandbox to the top. The sandbox is modeled by the right rectangular prism in the diagram.
    7·1 answer
  • I need these numbers Least to greatest
    13·1 answer
  • Show two ways that six people can share an eight segment
    10·1 answer
  • Some please help, select all the intervals where g is increasing
    15·2 answers
  • 7p - 8 = -22<br> A- p=2 <br> B- p=-2<br> C- p = 15<br> D- p=-15
    5·2 answers
  • An altitude is drawn from the vertex of an isosceles triangle, forming a right angle and two congruent triangles. As a result, t
    7·1 answer
  • Write the quadratic equation in standard form:<br> -3x^2-16=−3x
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!