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
vampirchik [111]
3 years ago
15

PLEASE PLEASEEEEEEE HELPPPPPPPP

Mathematics
2 answers:
Rufina [12.5K]3 years ago
7 0

Answer:

Set  2 x 2 − 6 x − 8  equal to  0 . 2 x 2 − 6 x − 8 = 0

Step-by-step explanation:

Those are the zeros

Please give me brainliest

soldier1979 [14.2K]3 years ago
7 0

So you definately wrote something wrong but I will assume the 6x^2 was meant to be just 6x.

2x^2 + 6x + 2 = 0

x^2 + 3x + 1 = 0

I can't seem to find a better way than to simply use the quadratic formula:

(-3 + sqrt(9 - 4*1*1))/2 \approx -0.382

(-3 - sqrt(9 - 4*1*1))/2 \approx -2.62

So the zeroes for this function are at

(-0.382, 0) and (-2.62, 0)

Or exactly:

((-3 + sqrt(9 - 4*1*1))/2, 0) and ((-3 - sqrt(9 - 4*1*1))/2, 0)

You might be interested in
What is the x value such that y =15 - 3x and y = 0? Please explain how you got this answer.
ICE Princess25 [194]

Answer:

x=5

Step-by-step explanation:

So how i came about to get this answer, was

y=15-3x

y=15-3(5)

y=15-15

y=0

I found five by testing out different numbers for x such as 1 2 3 4, but when i got to five, that was where i got the answer, as shown above.

<u>Do</u><u> </u><u>not</u><u> </u><u>forget</u><u> </u><u>about</u><u> </u>PEMDAS

3 0
3 years ago
Scott bought 8 packs of pencils for y dollars per pack. Which expression shows how much Scott pays for the pencils?
allsm [11]

Answer:

your answer would be b

Step-by-step explanation:

got it right

5 0
3 years ago
A shop keeper bought 26 apples from a fruit vendor for $37.70. How much did each apple cost?
Semenov [28]
You have to divide 37.70. By 26
3 0
3 years ago
Read 2 more answers
A new car that costs $17,500 loses 25 percent of its value in the first year. How much is the loss of the value.
EastWind [94]

\bf \begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{25\% of 17500}}{\left( \cfrac{25}{100} \right)17500}\implies 4375

4 0
3 years ago
A meter stick casts a shadow 2.4 m long at the same time a flagpole casts a shadow 9.7 m long. How tall is the flagpole
Luda [366]
The first thing we are going to do is draw a diagram of the situation to help us to solve the situation.
We an draw tow similar triangle between the length of the shadows and the height of the stick and the pole.
Since <span>meter stick has a length of 1 meter, the height of our smaller triangle is 1 meter. Let </span>h be height of of the pole. Since both triangles are similiar we can establish a proportion between their corresponding sides and solve for h:
\frac{h}{1} = \frac{9.7}{2.4}
h=\frac{9.7}{2.4}
h=4.04

We can conclude that the pole is 4.04 meters tall. 

8 0
3 years ago
Other questions:
  • (2x^3+6x^2-16x+24)/(x+5)<br> synthetic division
    6·1 answer
  • Jodie bought some shirt for $6 each.marge bought some for $8 each.the girls spent the same amount of money on shirts. what is th
    12·1 answer
  • Twenty percent of what number is 100?
    15·1 answer
  • Find the slope of the line passing through the points (3,-4) and (-6,9)
    10·1 answer
  • How do u change inches into feet
    15·2 answers
  • PLEASE HELP ASAP!!
    13·2 answers
  • Match each equation to a step that will help solve the equation.
    5·2 answers
  • A binder of baseball cards hold 625
    14·1 answer
  • Someone pls help!
    11·1 answer
  • What is the LCD of 7/8 and 3/4?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!