Answer:
x=−2 or x=4
Step-by-step explanation:
Step 1: Subtract x+2 from both sides.
x2−x−6−(x+2)=x+2−(x+2)
x2−2x−8=0
Step 2: Factor left side of equation.
(x+2)(x−4)=0
Step 3: Set factors equal to 0.
x+2=0 or x−4=0
x=−2 or x=4
Please help.. I don’t understand..
Answer:
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
the coefficient of the expression is +2 .
hope this helps.
12 out of 20 students prefer having a study hall. What percentage of students prefer study hall?
Answer:
2.4 %
Step-by-step explanation:
magic *poof*
Please Help With This
Help stuck on this question
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
Pls help me with this
Step-by-step explanation:
let's just write the equations on top of each other as in a large subtraction, then transform one of them so that at least one term is the range in both equations, and then do the subtraction.
a)
I automatically write rational numbers as the total fractions (14 1/4 = 57/4, 3 3/4 = 15/4)
15x - 7y = 57/4
- 5x - y = 15/4
15x - 7y = 57/4
- 15x - 3y = 45/4
-------------------------
0 -4y = 12/4
y = -(12/4)/4 = -12/16 = -3/4
then we use that in the simpler second equation
5x - -3/4 = 15/4
5x + 3/4 = 15/4
5x = 12/4
x = (12/4)/5 = 12/20 = 3/5
b)
we don't need to transform any equation, as the x terms are already equal.
3x - 4y = 2
- 3x - 7y = -1
-------------------
0 3y = 3
y = 3/3 = 1
using this in e.g. the first equation
3x - 4×1 = 2
3x - 4 = 2
3x = 6
x = 6/3 = 2
what does it mean for statements to be logically equivalent?
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 :) ?
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 ?
Answer:
4 shirts
Step-by-step explanation: 150 - 49.5 = 100.5 / 22.99 = 4.3
Answer:
4shirt thats is correct i research it
Work out m and c for the line: 3 y + 6 x = − 3
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]
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)
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
I need help asap leaving for flight in 2 hours PLZ HELP
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) :>
plssss help me i cant do this stuff
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.
* TRUE or FALSE: The absolute value of an integer is ALWAYS a positive number.
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
5 yards 2 feet times 2
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 feetwhich inequality is true when the value of w is 13 w-<5 -w-3>-5 -w-3>5 w->5
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
Can someone pls help
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
solve the equation 4(r-1)
Answer:
4r-4
Step-by-step explanation:
im pretty sure very sure
What are some advantages and disadvantages of using this repayment plan?
solve this equation using completing the square method 2x^2 -x -8 =0
Answer:
¼ + ¼ √65
Step-by-step explanation:
x= ¼ + ¼ √65
or
¼ + -¼ √65
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.
Answer:
3855.25???
Step-by-step explanation:
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?
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.
Answer:
Step-by-step explanation:
Chi saccio
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
write the equation for the graph below
Answer:
the funtion is y =-x+1, while - infinite < x <=3 also the y=x-5 while 3<= x < infinite
|x-1|+2<4 solving for x
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.
I need this answered, please.
Answer:56
Step-by-step explanation:bc thats the answer
What’s the value of the question mark?
Can someone tell me the answer to this please
Answer:
........12......... ...............
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.
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
A 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)?
Answer:
4000 m
Step-by-step explanation:
1 km =1000 m
Thus,
1000 by 4
=4000 km
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 $__
Answer:
$100
Step-by-step explanation:
77 +23= 100.
she gave the cashier a 100 dollars
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)
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