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
BartSMP [9]
4 years ago
14

8x^2-2x-1=0 find the solution

Mathematics
1 answer:
jek_recluse [69]4 years ago
5 0
8x² - 2x - 1 = 0
8x² - 4x + 2x - 1 = 0
4x (2x - 1) + 1 (2x - 1) = 0
(4x + 1)(2x - 1) = 0

4x + 1 = 0 or 2x - 1 = 0
x = -1/4 0r x = 1/2
You might be interested in
How many centimeter squares would be wrapped around this rectangular prism?
denis23 [38]
You haven't told us whether the rectangular prism is the size of a pack of gum or more like the size of a cruise ship.

Whatever size it is, here's the number of centimeter squares you need to cover the whole outside of it:

(2 x length x width) + (2 x length x height) + (2 x width x height)

with all measurements made in centimeters.
4 0
3 years ago
? Don't Send links, don't Write random things and get the points for free.
alekssr [168]

Answer:

V = 1847.26\ ft^3

Step-by-step explanation:

Step 1:  Determine the volume

V=\pi r^2h

V = \pi *(7\ ft)^2 * (12\ ft)

V = \pi *49\ ft^2 * 12\ ft

V = \pi  * 588\ ft^3

V = 1847.26\ ft^3

Answer:   V = 1847.26\ ft^3

6 0
2 years ago
What is six less than seven times a number is equal to -20​
Naya [18.7K]

Answer:

7n-6=-20

Step-by-step explanation:

six less than seven times a number

we'll use n as "the number"

six less meaning -6

7 times a number n = 7n

7n-6=-20

7 0
3 years ago
Pedro bought lb of red sand and lb of brown sand to refill his sand box. Both types of sand cost $4.60 a pound. How much did Ped
Doss [256]
If we know that Pedro bought 1 \frac{1}{4} pounds of red sand, and 5 \frac{1}{2} pounds of brown sand, and they both cost $4.60, then we just have to add the individual amounts of sand, since they cost the same.

1  \frac{1}{4} + 5  \frac{1}{2} = 6  \frac{3}{4}

So Pedro bought 6 \frac{3}{4} lbs of sand overall. Now, we just need to multiply the cost per pound by the total amount of sand he bought.

6 \frac{3}{4} * 4.6 = 31.05

Pedro spent $31.05 on sand, which is answer choice B.
Hope that helped =)
4 0
4 years ago
Read 2 more answers
Please help anything is appreciated I will give you Brinley if it’s right
bearhunter [10]

I wish you good lessons

4 0
3 years ago
Other questions:
  • I don't get this can u please show me step by step
    5·1 answer
  • If 4y-4=16<br> then y= ?
    5·2 answers
  • The description below represents Function A and the table represents Function B:
    5·1 answer
  • A kindergarten teacher asked the students’ parents to send their child to school with two fruits (apples and/or oranges). Below
    11·1 answer
  • In a fruit salad, there are 12 strawberries, 14 grapes, 6 kiwis, and 4 papayas. Find the ratio of kiwis to the total number of p
    15·2 answers
  • Which number is 4 units from-1
    10·1 answer
  • What is the general form of the equation for the given circle?
    9·1 answer
  • Harold bought 3 points of red apples and 4.2 pounds of green apples from a grocery store, where both kinds of apple are 1.75 a p
    8·2 answers
  • Three friends share 2 bags of trail mix equally.
    12·1 answer
  • Help help help :) I don’t know and please no fake answers
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!