Answer:
Step-by-step explanation:
It’s v208
Simplify -4l-5l - [2(-17)]
A. 14
B. 54
C. -14
Answer:
14
Step-by-step explanation:
-4 |-5| = -20
-2(-17) = 34
34-20 = 14
A student is given a quadratic equation in vertex form. He determines the vertex and axis of symmetry, and then sketches the parabola so that it is symmetrical about the axis of symmetry. Is this sufficient? Explain.
Answer:
The information with which the parabola is constructed is insufficient
Step-by-step explanation:
The vertex form of a quadratic equation is given as follows;
f(x) = a(x - h)² + k
The steps to draw the graph of a quadratic function given in vertex form, we are required to do the following;
1) Definition of the variables, (a, h and k) of the quadratic equation (given in vertex form)
The vertex of the quadratic equation in vertex form is (h, k)
2) Given that the vertex point is given, the vertex point is then plotted on the graph
3) Draw the parabola axis of symmetry that passes through the vertex point
4) Determine the direction to which the parabola opens from the sign of the variable a as follows;
i) When a is positive, the parabola opens upwards
ii) When a is negative, the parabola opens downwards
5) Determine if the parabola has x-intercepts and plot them
A parabola has x intercepts when;
i) The parabola opens downwards, that is, the variable, a, is negative and also the vertex (h, k) is above the x-axis or k is positive
ii) The parabola opens upwards, that is, the variable, a, is positive and also the vertex (h, k) is below the x-axis or k is negative
6) Determine y-intercepts and plot them as follows;
At the y-intercept, x = 0, therefore;
f(x) = a(x - h)² + k
f(0) = a(0 - h)² + k = a·h² + k
6) If any additional points are required, they should plotted and then the graph of the function is then drawn making sure to be symmetrical about the vertex and to pass through all the plotted points.
Ann's car can go 140 miles on 4 gallons of gas. During a drive last weekend, Ann used 5 gallons of gas. How far did she drive?
175 miles
Step-by-step explanation:Hi there !
4 gallons .......... 140 miles
5 gallons ...............x miles
x = 5×140/4 = 700/4 = 175 miles
Good luck !
In a badminton tournament each player played one game with all other players. Number of players participated in the tournament if they played 105 games
Answer: 15 players.
Step-by-step explanation:
number of games played in the tournament = 105 games
nunber of games played by each player against another = 1 game each.
Solution:
Number if player who participated in the tournament.
if each player played a game against every other player, and they were 105 games played at the tournament.
n ( n – 1 ) /n = m
= n ( n – 1 ) 2 = 105
open the bracket
n^2 – n = 210
n^2 – n – 210 = 0
( n – 15 ) ( n + 14 ) = 0
n = 15
15 players Participated In the tournament.
HELPP!!! 10 POINTS OFFERED
Answer:
Option 1
Step-by-step explanation:
look at the graph in bot cases y still positive in the upper part of the graph
only x moves from the right side to left side of the graph
Take one point A (2,2) to A'(-2,2)
from 2 to -2 (x-4=2-4=-2)
from 2 to 2 ( y still the same)
Does the point (2, 0) satisfy the equation y = x?
Answer:
no
Step-by-step explanation:
y = x
Substitute the point into the equation
0=2
This is not true so the point is not a solution
Hey there! I'm happy to help!
The point (2,0) does not satisfy the equation y=x. That means that x and y have to be equal. 2 and 0 are not equal. A point like (4,4) would satisfy that.
Have a wonderful day! :D
a thirty-year-old woman decides to pay $390 for one year life insurance policy with coverage of 150000. the probability of her living through the year is 0.9976. what is her expected value for the insurance policy
Answer:
5
Step-by-step explanation:
The expected value is −390(0.9976) + (150,000 − 390)( 1 − 0.9976) = −$30
-$30. This was the right answer on Brainly.
A 3-column table with 4 rows. The first column is labeled Currency and entries Canadian dollar, Euro, Japanese yen, Indian rupee. The second column is labeled U S D/1 Unit and entries 0.97071, 1.35261, 0.01007, 0.01594. The third column is labeled Units/1 U S D and entries 1.03069, 0.73935, 99.90487, 62.72053. Which expression can be used to convert 100 USD to Japanese yen?
Answer:
A
Step-by-step explanation:
Answer:
A
Step-by-step explanation:) edge 2023
The midpoint of PQ is M(1, 4). One endpoint is P(2, 8). Find the coordinates of the other endpoint Q. Write the coordinates as decimals or integers.
Answer:
Step-by-step explanation:
(x+2)/2 = 1
x + 2 = 2
x = 0
(y + 8)/2 = 4
y + 8 = 8
y = 0
(0, 0)
What is the demical equivalent to the rational number 1/8
Answer:
the decimal equivalent is 0.125
Answer:0.8
Step-by-step explanation:take it and decimmalize it
3| -8x | +8 = 80
helpp
Answer:
x=8.625
Step-by-step explanation:
ok so the lines mean absolute value so its actuall positive soyou get 3+8x+8=80
so add 3 and 8 to get 11+8x=80
subtract 11 to get 8x=69
then divide it by 8 so x is by itself
x=8.625 hope this helped :)
Answer:
x = 3 , x = -3
Step-by-step explanation:
3 | -8x | + 8 = 80
3 | -8x | = 72
Solve the negative and positive case:
Negative-
-3 ( -8x ) = 72
24x = 72
x = 3
Positive-
3 (-8x ) = 72
-24 = 72
-x = 3
x = -3
Need help with these 2 equations, thanks if you do :)
Answer:
X=6+2=8 * 6= 48
Step-by-step explanation:
If you divide 48 by 6 you get 8 then you - 2 and you get six. so x =6
can someone help with this ASAP
Answer:
105 degrees
Step-by-step explanation:
Name a equivalent ratio for 2/4 with denominator 24
Answer:
12
Step-by-step explanation:
Answer:
12/24
Step-by-step explanation:
The perimeter of a rectangular tabletop is 384 cm. It's width is 3/5 of its length. Find the dimensions of the tabletop
Answer:
Length: 120cm, Width: 72cm
Step-by-step explanation:
Let x = length
Let 3x/5 = width
2x+2(3x/5)=384
2x+(6x/5)=384
16x/5=384
16x=1920
x=120cm
Substitute 120 for x in width
360/5 = width
width = 72cm
What is the probability of the outcome being an A? HELP ASAP!
Answer: 1/2
Step-by-step explanation:
Total options = 8
Number of A's = 4.
Probability = desired outcomes / total outcomes
= 4/8
You can simplify 4/8 to :
1/2
solve the system
4x + 2y = 10
x = y + 13
Answer:
[tex]x = 6[/tex]
[tex]y = -7[/tex]
Step-by-step explanation:
We have the system of equations:
[tex]4x+2y=10\\x=y+13[/tex]
Let's solve by substituting. We know that [tex]x=y+13[/tex], so we can substitute [tex]y+13[/tex] in as [tex]x[/tex] in the equation [tex]4x+2y=10[/tex].
[tex]4(y+13) + 2y = 10[/tex]
Simplify this down so that we have [tex]y[/tex] on one side of the equation:
[tex]4y + 52 + 2y = 10\\\\6y + 52 = 10\\\\6y = -42\\\\y = -7[/tex]
Now that we know the value of [tex]y[/tex], we can substitute it in to the equation [tex]x = y+13[/tex] to find [tex]x[/tex].
[tex]x = -7+13\\\\x = 6[/tex]
Hope this helped!
Answer: (6,-7)
Step-by-step explanation:
4x +2y = 10
x = y + 13 Substitute the value of x into the first equation to solve for y.
4(y + 13) +2y = 10 apply the distributive property on the left side
4y + 52 + 2y = 10 Combine like terms on the left side
6y + 52 = 10 Subtract 52 from both sides
-52 -52
6y = -42
y= -7
The value of y so input it into one of the equations to solve for x
4x + 2(-7) = 10
4x - 14 = 10
+14 +14
4x = 24
x= 6
When p2 – 4p is subtracted from p2 + p – 6, the result is . To get p – 9, subtract from this result.
Answer:
When p2 – 4p is subtracted from p2 + p – 6, the result is:
p2+p-6-(p2-4p)=p2+p-6-p2+4p=5p-6
To get p – 9, subtract from this result x:
5p-6-x=p-9
Solving for x:
5p-6-x+x-p+9=p-9+x-p+9
4p+3=x
x=4p+3
Answer:
1) When p2 – 4p is subtracted from p2 + p – 6, the result is 5p-6
2) To get p – 9, subtract from this result 4p+3
Step-by-step explanation:
Answer:
PLATO
Step-by-step explanation:
find the perimeter and area of this figure.
Hey there! I'm happy to help!
AREA
To find the area of a parallelogram, you multiply the base by the height.
12(6)=72
The area is 72 square centimeters.
PERIMETER
The two diagonal sides are 8 cm and the two bases are 12 cm.
8+8+12+12=40
The perimeter is 40 cm.
Have a wonderful day! :D
Evaluate 3 - 24 + 8 + 42.
A.0
B.2
C.16
D.24
3 - 24 + 8 + 42
= (3 - 24) + 8 + 42
= (-21 + 8) + 42
= -13 + 42
= 29
Use mental math to solve the equation b + (-2) = 0.
Answer:
2
Step-by-step explanation:
Answer:
B = 2
Step-by-step explanation:
b+-2=0
b=2
Dan needs to get to Austin as fast as possible. The train leaves at 3:00 PM and can travel 60 Miles per hour. If Austin is 65 Miles away, How long will it take Dan to get there?
what is significance of the generally lower rate at which people save for retirement
Answer: 25 or 30-60
Step-by-step explanation:
Vote me for branliest Have a great day or night everyone!!!
I need help with this question
Answer:
10 dollars a month
Step-by-step explanation:
3 between 5 equal 10 dollars
What is the answer to -4.05 x 2
Answer:
-8.1
Step-by-step explanation:
1
-4.05
x. 2
---------
-8.1
Monday: 7
Tuesday: 1
Wednesday: 4
Thursday: 10
Friday: 7
Saturday: 4
Sunday: 9
What was the average number of calls Corina received over the course of the week?
A. 42 calls B.7 calls
C. 8 calls D.6 calls
Answer:
D.6 calls
Step-by-step explanation:
To find the average first we need to add up all the numbers
7+1+4+10+7+4+9=42
Next we would divide 42 by the number of days which is 7 days
42÷7 and 6
Point F is the midpoint of segment DE. DF = 2x+6 and DE = 2x+36. Find DE.
Answer: It already tells you what DE= 60
Step-by-step explanation:
Since F is the midpoint of DE that means DF=FE
So create equation [tex]2x+6+2x+6=4x+12[/tex]
When DF and FE is added your answer should equal DE
So you write the equation [tex]4x+12=2x+36[/tex] to find x and once x is found substitute your answer for x
[tex]4x+12(-12)=2x+36(-12)[/tex] subtract 12 on both sides 36-12= 24
[tex]4x=2x+24[/tex] subtract 2x on both sides 4x-2x=2x
[tex]2x=24[/tex] divide 2 into both sides 24/2=12 x=12
[tex]4(12)+12=2(12)+36[/tex]
4x12=48+12=60 2x12=24+36=60
If anyone can help it would be greatly appreciated. I will give you 20 extra points for free! Or venmo you $10 :)
Answer:
15) 1/3
18) 1/2
21) 25/26
Step-by-step explanation:
15) 2/6=1/3
18) 3/6=1/2
21) 25/26
Identify the percent of change as an increase or decrease.
Original: 70
New: 60
Increase? Or
Decrease?
Answer:
Decrease
Step-by-step explanation:
Number has gone down, therefore it's a decrease.
how do i solve 9 - 2x = 15 *EXTRA POINTS
Answer:
[tex]x=-3[/tex]
Step-by-step explanation:
[tex]9-2x=15[/tex]
Subtract 9 from both sides:
[tex]9-2x-9=15-9[/tex]
[tex]-2x=6[/tex]
Divide both sides by -2:
[tex]\frac{-2x}{-2}=\frac{6}{-2}[/tex]
[tex]x=-3[/tex]