Answers
Answer:
[tex]\frac{-1+-\sqrt{41} }{4}[/tex] (Third Option)
Step-by-step explanation:
Step 1: Use quadratic formula with a = 2, b = 1, c = -5.
[tex]x = \frac{-b+-\sqrt{b^2-4ac} }{2a}[/tex] [tex]x = \frac{-(1)+-\sqrt{(1)^2-4(2)(-5)} }{2(2)}[/tex] [tex]x = \frac{-1+-\sqrt{1-8(5)}}{4}[/tex] [tex]x = \frac{-1+-\sqrt{1-40} }{4}[/tex] [tex]x = \frac{-1+-\sqrt{41} }{4}[/tex]Therefore, the answer is the third option, [tex]\frac{-1+-\sqrt{41} }{4}[/tex].
Related Questions
I need help asap leaving for flight in 2 hours PLZ HELP
Answers
Answer:
11$ for 10 is better it cost 1.1 per and 4 for 3$ cost 1.33333 (have a nice flight and I would like that brainliest if that's ok) :>
Bob: 11/10 = 1.1 per bagel
Donny:3/4 = .75 per bagel
Better deal will have lower ratio of dollars per bagel
which inequality is true when the value of w is 13 w-<5 -w-3>-5 -w-3>5 w->5
Answers
w > -5 shows that w is greater than -5 and since 13 is greater than -5, hence the inequality expression w > -5 is true
We need to get the equation that is true for w to be 13. This means that the required inequality expression should be w must be a positive integer.
For the Expression -w - 3 > -5
-w > -5 + 3
-w > -2
w < 2
Since w is less than 2, hence the inequality is wrong
For the inequality
-w - 3 > 5
-w > 5 + 8
-w > 13
w < -13
Since w < -13, hence the inequality is wrong
For the inequality w > -5
It shows that w is greater than -5 and since 13 is greater than -5, hence the inequality expression w > -5 is true
Learn more here: https://brainly.com/question/15816805
solve this equation using completing the square method 2x^2 -x -8 =0
Answers
Answer:
¼ + ¼ √65
Step-by-step explanation:
x= ¼ + ¼ √65
or
¼ + -¼ √65
A diesel train left Abuja and traveled west.Two hours later a freight train left traveling 15 mph faster in an effort to catch up to it. After six hours the freight train finally caught up. Find the diesel train's average speed. (Need to have chart and explanation)
Answers
Step-by-step explanation:
let the speed of diesel train = x
the equation would be:
(2+6)x = 6(x+15)
8x = 6x+90
8x-6x = 90
2x = 90
x = 90/2
x = 45
Therefore, the speed of diesel train =
45 mph
5 yards 2 feet times 2
Answers
Answer:
11 yards 1 feet or 34 feet
Step-by-step explanation:
1st method:
(5 yards × 2) + (2 feet × 2)10 yards + 4 feet11 yards and 1 feet2nd method:
5 yards = 15 feet(15 feet × 2) + (2 feet × 2)30 feet + 4 feet34 feetA scientist sets up two cameras to monitor the wildlife in a nature reserve. The cameras are set up exactly 4 kilometres (km) apart. How far is this distance in metres (m)?
Answers
Answer:
4000 m
Step-by-step explanation:
1 km =1000 m
Thus,
1000 by 4
=4000 km
Help stuck on this question
Answers
Answer:
1. neither
2. perpendicular
3. neither
4. parallel
Step-by-step explanation:
Remember: Parallel lines have the same slope and the slope of perpendicular line are negative reciprocals of each other. Also the slope is the coefficient of the x-term
1. neither
2. perpendicular
3. neither
4. parallel
A 3. On a recent shopping trip, you see a sale advertising 4 pairs of socks and 3 pairs of shoes for $90. Write an equation using to represent the cost of socks and y to represent the cost of shoes.
A)40x + 30y - 90
B)30x + 40y = 90
C)3x + 4y - 90
D)4x + 3y = 90
Answers
x = pairs of socks
y = pairs of shoes
90 = total cost of the sum of socks and shoes
Combining these with the given quantities for each variable:
4x + 3y = 90
12 out of 20 students prefer having a study hall. What percentage of students prefer study hall?
Answers
Your answer is the question
Answer:
2.4 %
Step-by-step explanation:
magic *poof*
Work out m and c for the line: 3 y + 6 x = − 3
Answers
Answer:
m is -2 and c is -1
Step-by-step explanation:
• Let's first phrase out the general equation of a line
[tex]{ \rm{y = mx + c}}[/tex]
m is the slopec is the y-intercept[ remember that a general line equation must be in slope - intercept form as shown above ]
• from our question, we are given the equation;
[tex]{ \rm{3y + 6x = - 3}}[/tex]
• let's make y the subject in order to make the equation in slope - intercept format.
→ remember to apply "subject making knowledge"
[tex]{ \rm{3y = - 3 - 6x}} \\ \\ { \rm{3y = - 6x - 3}} \\ \\ { \rm{ \frac{3y}{3} = \frac{ - 6x}{3} - \frac{3}{3} }} \\ \\ { \boxed{ \rm{y = - 2x - 1}}}[/tex]
• The above boxed equation is now a general equation. Let's extract out slope, m and y-intercept, c
[tex]{ \rm{m \: \dashrightarrow \: - 2}} \\ \\ { \rm{c \: \dashrightarrow \: - 1}}[/tex]
Maya is taking trip to the mall to purchase
Some new Clothes. She can afford spending up
to $150. If she wants to buy a pair of
shoes that cost $49.50 and variety of Shirts
That cost $ 22.99 each, how many shirts can
Maya afford ?
Answers
Answer:
4 shirts
Step-by-step explanation: 150 - 49.5 = 100.5 / 22.99 = 4.3
Answer:
4shirt thats is correct i research it
what does it mean for statements to be logically equivalent?
Answers
Answer:
Two statement forms are called logically equivalent if they have identical truth values for each possible substitution for their statement variables.
Step-by-step explanation:
hope this helps <333
brainliest plz :) ?
how do you factor this equation? 5x^2-36x-81
Answers
ANSWER: THERE ARE TWO SOLUTIONS TO GET THE ANSWER
THE FIRST ONE IS FACTOR BY GROUPING AND THE SECOND SOLUTION IS SOLVING USING THE QUADRATIC FORMULA.
STEP BY STEP SOLUTION:
FACTOR BY GROUPING
(5x +9) (x -9)
WRITE IN STANDARD FORM
5x^2 - 36x -81
SOLVE USING THE QUADRATIC FORMULA
Solve the equation for x by finding a,b, and c of the quadratic then applying the quadratic formula.
X= 9, -9/5
I HOPE IT HELP YOU :)
Kadeem wants to ride his bicycle 52 miles this week. He has already ridden 16 miles. If he rides for 5 more days, write and solve an equation which can be used to determine xx, the average number of miles he would have to ride each day to meet his goal.
How to solve this for an equation.
Answers
The average number of miles that would be ridden to meet his goal is 7.2 miles.
Total distance = 52 miles
Distance ridden = 16 miles
Number of days left = 5 days
Let the number of miles that'll be ridden for each day be represented by x.
Therefore, the equation to solve the question will be:
5(x) + 16 = 52
5x + 16 = 52
5x = 52 - 16
5x = 36
x = 36/5
x = 7.2
Therefore, he'll have to ride 7.2 miles per day.
Read related link on:
https://brainly.com/question/25216701
Can someone pls help
Answers
Answer:
14x-13 good luck
Step-by-step explanation:
this is the answer
(9x-6)- (-5x+7)
9x-6+5x-7
9x+5x-6-7
14x-13
Wei has $150.00 to make a garland using 60-cent balloons. He wants to purchase 100 blue balloons and some number of white balloons. He learns that the white balloons are on sale for half price. He writes and solves an equation to find the number of white balloons he can purchase.
Which models can be used to solve the problem?
Answers
Answer:
its C
Step-by-step explanation:
If ABC - DEF, C = 5cm, b = 7cm, a = 8cm, and e = 14cm,
determine the lengths of sides d and f.
Answers
Answer:
Step-by-step explanation:
Chi saccio
solve the equation 4(r-1)
Answers
us the distributive property to distribute the 4 to the r and the 1
Answer:
4r-4
Step-by-step explanation:
im pretty sure very sure
plssss help me i cant do this stuff
Answers
Answer: See explanation: 10, 1, 1, -7
Step-by-step explanation:
I'll assume you are working with Excel. The Product function multiplies all the cells given in the specified range. Here, those are cells A2 through A5. As presnted, this would be [10*5*0*(-7)] = 0, which is the value of cell B2. If we want cell B2 to be -70, we must change one or more of the numbers in cells A2 to A5.
Initial: 10, 5, 0, -7 B2=0
Change: 10, 1, 1, -7 B2 = -70
Other combinations are possible.
Natalie buys organic almonds priced at $77.00 from the grocery store. How much did she pay the cashier, if she received $23.00 in change?
Write the problem __
She paid the cashier $__
Answers
Answer:
$100
Step-by-step explanation:
77 +23= 100.
she gave the cashier a 100 dollars
What are some advantages and disadvantages of using this repayment plan?
Answers
Write the equation of the line in slope intercept form the line is parallel to y+x=3 and passes through the point(-12,0)
Answers
Answer:
y= -x -12
Step-by-step explanation:
change y+x=3 to the form y=-x +3
gradient= -1
*Parallel lines have the same gradient
y-coordinate = gradient (x - x-coordinate)
y-0= -1 (x- (-12))
y=-x-12
* TRUE or FALSE: The absolute value of an integer is ALWAYS a positive number.
Answers
Answer:
TRUE
Step-by-step explanation:
Absolute value refers to a point's distance from zero or origin on the number line, regardless of the direction. The absolute value of a number is always positive
|x-1|+2<4 solving for x
Answers
Answer:
x < 3 and x > -1
Step-by-step explanation:
Step 1: Subtract 2 from both sides.
[tex]|x-1| + 2 - 2 < 4 - 2[/tex] [tex]|x-1|<2[/tex]Step 2: Solve absolute value.
We know x - 1 < 2 and x - 1 > -2.Condition 1:
[tex]x - 1 < 2[/tex] [tex]x - 1 + 1 < 2 + 1[/tex] (Add 1 to both sides)[tex]x < 3[/tex]Condition 2:
[tex]x - 1 > -2[/tex] [tex]x - 1 + 1 > -2 + 1[/tex] (Add 1 to both sides)[tex]x>-1[/tex]Therefore, the answer is x < 3 and x > -1.
A pack of 16 markers cost $3.52. How much does each marker cost?
Answers
Answer:
To find one marker
$3.52 / 16
=0.22 cents
3.52 ÷ 16 = 0.22
write the equation for the graph below
Answers
Answer:
the funtion is y =-x+1, while - infinite < x <=3 also the y=x-5 while 3<= x < infinite
will give correct answer brainliest
Answers
Answer:
(-1,3) > (3,-2)
(2,-1) > (6,-6)
(5,-3) > (-1,-8)
Please help.. I don’t understand..
Answers
Answer:
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
the coefficient of the expression is +2 .
hope this helps.
You calculate the average shower length to be 11 minutes and 15 seconds. If everyone in a family of 5 showers daily, how much water would the family use for showering each week? 10L/min
Answer to the nearest litre.
Answers
Answer:
3855.25???
Step-by-step explanation:
Please Help With This