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
kow [346]
4 years ago
7

Determine the direction that this parabola opens y=x^2+2x+8up or down

Mathematics
1 answer:
Paha777 [63]4 years ago
6 0

Answer:

up

Step-by-step explanation:

The standard equation for a parabola is y = ax^2 + bx + c.  If the coefficient a is positive, then the curve (graph) opens up.

In y=x^2+2x+8  this coefficient is +1, so the curve opens up.

You might be interested in
Square Root of 100 minus square root of 9
Alex17521 [72]

Answer:

7

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Gradinize cheese costs $1.28 per pound. How much would you pay for 7 pounds ?
Alenkasestr [34]

Answer:

I'm pretty sure the answer is 8.96

Step-by-step explanation:

1.28×7=8.96

8 0
4 years ago
Solve for x:<br> 1 1/5x−2 1/3&lt;1/7x+1 1/2
Mashcka [7]

Answer: x

Step-by-step explanation:

1\frac{1}{5}x-2\frac{1}{3}

Add 2\frac{1}{3} on both sides and subtract \frac{1}{7}x on both sides to leave x's on the left side and independent values on the right.

(2\frac{1}{3}-\frac{1}{7}x) +1\frac{1}{5}x-2\frac{1}{3}

1\frac{1}{5}x-\frac{1}{7}x

Solve the fractions.

1(\frac{1}{5}-\frac{1}{7})x

1(\frac{(1)(7)-(5)(1)}{(5)(7)} )x

1(\frac{7-5}{35} )x

1(\frac{2}{35} )x

1\frac{2}{35}x

Convert the mixed fraction 1\frac{2}{35} to an improper fraction. You can do this by multiplying 1 times 35 and adding 2.

\frac{37}{35}x

Now use the reciprocal (inverse fraction) and multiply on both sides to isolate x.

(\frac{35}{37}) (\frac{37}{35})x

x

x

x

5 0
3 years ago
Help plzWRITE AN EQUATION TO EXPRESSION Y IN TERMS OF X
stiv31 [10]

Answer:

if you have y= 2x, y is in terms of x and you can input different values of x to obtain corresponding values outputs of y.

3 0
3 years ago
Read 2 more answers
16. David wanted to buy a new suit selling for $400. He negotiated with the salesperson
Reil [10]
Answer:$344

1/5 of 400 is 80 so if you subtract that it would be $320
1/50 of $400 is 8 so if you multiply that by 3,3/50 of $400 is(8*3)24 so $320+$24=$344
7 0
3 years ago
Other questions:
  • the segment ABC has these endpoints A: (6,-3) and B (5,5). It is to be partitioned into a 1:4 ratio. Give the cordanate P that w
    13·1 answer
  • What she be done first to solve the inequality?<br><br> -3x + 5 &lt; 23
    10·1 answer
  • Help math problem please
    11·1 answer
  • HURRYYY HELP! Triangle ABC is congruent to triangle FDE, and both triangles have the same orientation, as shown. What is the slo
    9·1 answer
  • Write the standard form of this equation<br><br> 2x +8+7/2y =0
    7·1 answer
  • Need help with this question. I tried simplifying the radical, but apparently it’s not the answer
    10·1 answer
  • I need help with this
    14·1 answer
  • A sample of ????=25 diners at a local restaurant had a mean lunch bill of $16 with a standard deviation of ????=$4 . We obtain a
    9·1 answer
  • 10 × 980 what's the awnser
    8·2 answers
  • Can some one help me with geometric sequence?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!