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
Evgesh-ka [11]
3 years ago
12

-2x2+x+8=0 use the quadratic formula to solve the equation

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
5 0
X = -1 is the answer to -2x2+x+8=0
You might be interested in
the perimeter of the rectangle below is 98 units. Find the length of CD. Write your answer without variables. cd=4x+3 cb=5x+1
zimovet [89]

2(4x + 3) + 2(5x + 1) = 98 \\ 8x + 6 + 10x + 2 = 98 \\ 18x + 8 = 98 \\ 18x = 90 \\  x = 5
Substitute x with 5,

CD =
4x + 3 \\  = 4(5) + 3 \\  = 20 + 3 \\  = 23
CD = 23 units

Hope this helps.
7 0
3 years ago
Read 2 more answers
Please help me i would appreciate it greatly
Lera25 [3.4K]

Answer:

I would put B

Sorry if it's wrong I would have to know what the test is about to answer this

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Use the information below to solve the problem Purchase price of article = $495 Down payment = $50 Number of payments = 36 True
Diano4ka-milaya [45]
Hi :)

Amount financed
495−50
=445
Total interest
(0.18×445×37)÷(2×12)
=123.49
Total paid
445+123.49
=568.49
Monthly payment
568.49÷36
=15.79

Hope it helps
5 0
3 years ago
Read 2 more answers
X^3 = ? Please write the answer correctly.
photoshop1234 [79]

Answer: (x)(x)(x) = x^3.

Step-by-step explanation:

x^3 means multiply x by it's self 3 times.

Hope this helps..

4 0
3 years ago
Read 2 more answers
!!25 POINTS AND BRAINLIEST!! A recipe calls for 2 cups of pizza sauce. I only want 3/4 OF the full 2 cups. How will I figure out
Nutka1998 [239]

Mathematical Answer: 2cups*3/4 = 1 and 1/2 cups or 1.5 cups.

How to do it while cooking:

  1. Get out a container large enough to hold at least 4 cups sauce
  2. Get out a "1 cup" and "1/2 cup" measuring cup.
  3. Measure out 1 cup of sauce with the "1 cup" measuring cup.
  4. Measure out  1/2 of a cup of sauce with the '1/2 cup' measuring cup.
  5. pour both cups into the larger container.

And there you go you have 3/4 of 2 cups of sauce.

<em>Hoped this helped!</em>

5 0
3 years ago
Read 2 more answers
Other questions:
  • Chris earns $10.00 each time he washes his neighbor’s car. The expression 10x represents Chris' earnings. What does the variable
    7·2 answers
  • △ABC△ABC is similar to △QRS△QRS. Also, sideABsideAB measures 50 cm, sideACsideAC measures 60 cm, and sideQSsideQS measures 6 cm.
    6·1 answer
  • There are 54 players in a beach volleyball club. Nine of the players cannot attend a game night. The coach needs to make even te
    7·1 answer
  • The volume of a cube depends on the length of its sides. This can be written
    15·1 answer
  • Write the following using index notation:<br> C) 4 x 4 x 4 x 5 x 5
    14·1 answer
  • If x=2/3 and x=-3 are the roots of the equation ax^2+7x+b=0 find the values of a and b
    15·1 answer
  • Evaluate 3z+6 when z=4​
    8·1 answer
  • A television news program asks its viewers to call in to give their opinions on an upcoming ballot question. What type of sampli
    12·1 answer
  • What is the number of 20% of 40
    7·1 answer
  • A company makes skis for junior skiers with lengths of 120 to 140 cm inclusive. Identify the compound inequality.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!