Answer:
7
Step-by-step explanation: (dont trust me)
x^2 + (7)x +18
x(x + 4) + 3(x + 6)
Answer:
See the attachment for what goes on your X diagram.
Rewrite: x² -7x +4x -28
Grouping: (x² -7x) +(4x -28) = x(x -7) +4(x -7) = (x +4)(x -7)
Step-by-step explanation:
The given quadratic is ...
... x² -3x -28 . . . . . a=1, b=-3, c=-28
a) The value at the top of the X diagram is the product a·c = 1·(-28) = -28.
The value at the bottom of the X diagram is the coefficient b = -3.
The values on the sides of the diagram are the factors of -28 that add up to make -3. These are -7 and 4. That is, ...
(-7)·(4) = -28
(-7)+(4) = -3
b) Since the two values on the sides of the diagram add up to give "b", the value of "b" in the equation can be rewritten as the sum of these two numbers. Doing that, we have ...
... x² -3x -28
... = x² +(-7+4)x -28
... = x² -7x +4x -28 . . . . . . order does not matter. It could also be x² +4x -7x -28
c) We can group pairs of terms in the rewritten expression and factor each pair.
... = (x² -7x) +(4x -28) . . . . . first pair has a common factor of x; second pair, 4
... = x(x -7) +4(x -7) . . . . . . . these terms now have a common factor: (x -7)
... = (x +4)(x -7) . . . . . . . . . . the complete factorization of x² -3x -28
_____
Comment on extended application
When a ≠ 1, there are a couple of additional steps. Effectively, you reduce the fractions ax/p and ax/q to a'x/p' and a''x/q'', then rewrite those as the factors (a'x+p')(a''x+q'') where the ' and '' numbers are after reducing the fractions. (The numbers may be the same as the original if the fraction cannot be reduced.) As a check, a'·a'' = a, and p'·q'' = c.
What is the perimeter of a square with a length of 19 meters?
Answer:
76 m
Step-by-step explanation:
If each side has a length of 19 m, then the perimeter is 19m*4 = 76 m
Find the slope of the line from a graph! Will Give brainliest :)
Answer:
-4
Step-by-step explanation:
because the line is going from top to bottom it is negative
you take the rise ( the Y value) / the run (the X Value)
the Y and X value can be pulled from any two points
Which equation represents the slope-intercept form of the line below?
y-intercept = (0,3)
slope = 4
O A. y = 3x + 4
O B. y = 3x - 4
O C. y = 4x-3
D. y = 4x + 3
help asap
Answer:
D
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = 4 and c = 3, then
y = 4x + 3 → D
Answer:
b
Step-by-step explanation:
what is the other endpoint of a segment with one endpoint at(-3, 8) and the midpoint at (7, 1)?
Answer: The other point is (17, -6).
Step-by-step explanation:
Midpoint (x,y) of the line segment joining (a,b) and (c,d) is given by :-
[tex](x,y) =(\dfrac{a+c}{2}, \dfrac{b+d}{2})[/tex]
Here, we need to find the other endpoint of a segment with one endpoint at(-3, 8) and the midpoint at (7, 1).
Let other point be (a,b), then
[tex](7,1)=(\dfrac{-3+a}{2},\dfrac{8+b}{2})\\\\\Rightarrow\ \dfrac{-3+a}{2}=7\ \text{ and }\dfrac{8+b}{2}=1\\\\\Rightarrow\ -3+a = 7\times2 \text{ and } 8+b=1\times2\\\\\Rightarrow\ -3+a=14\text{ and }8+b=2\\\\\Rightarrow\ a=14+3, \ \ \ b= 2-8\\\\\Rightarrow\ a=17, b= -6[/tex]
hence, the other point is (17, -6).
What is the slope of the line y=8?
Answer:
undefined or 0
Step-by-step explanation:
Answer:
The answer is 0 because undefined is straight up or vertical
If 6x+3y=−1 and
5x+y=8 are true equations, what would be the value of
−x−2y?
Answer: 9
x = 2.778
y = -5.889
-x -2y
= -2.778 - 2(-5.889)
= 9
Amy sells tote bags at a craft fair for a day. She pays $50 to rent a booth. The materials and labor cost on each tote bag is $3.50. Her expenses for the day depend on how many tote bags she sells. Write a linear function rule and identify the initial value and rate of change.
Answer:
Let x= number of totebags sold
Cost=C(x)=50+3.5x
2.248 divided by 5.62
Answer:
0.4
Step-by-step explanation:
Answer:
44.128114
Step-by-step explanation:
a machine at a graphic design studio produces paper labels for juice bottles. This graph represents the number of labels produced over time.
Based on the graph, how many labels are produced per minute?
50 labels/minute
75 labels/minute
100 labels/minute
150 labels/minute
Answer:
150 labels/ minute
Step-by-step explanation:
As you can see on the graph there is a point on (1,1 1/2)=150/1
Also 150*2=300 so it all makes sence
Sam had 1 1-2 m of rope. He cut off 5-8 m and used it for the project. How much does Sam have left
There is more than one answer!
Answer:
I think it's B and D
Step-by-step explanation:
Complete each statement with a number that makes the statement true.
_____ < 7°C
Do not include units (°C) in your answer.
copied for free from openupresources.org
Select one:
15
8
4
10
Answer:
4
Step-by-step explanation:
the answer is: 4
cause 4 is less than 7
Put the following equation of a line into slope-intercept form, simplifying all
fractions.
8x – 6y = 54
DESPERATE WILL GIVE BRAINLIST AND THANKS
A right rectangular prism is shown.
What is the length of DH¯¯¯¯¯¯ to the nearest tenth of an inch?
Drag and drop the answer into the box.
Response area in.
1.82.43.55.4
A cuboid with points labeled from A to H. It has a height of 3 inches, a width of 1.5 inches, and a depth of 1 inch.
A.3.5
B.1.8
C.2.4
D.5.4
Answer:
Step-by-step explanation:
Sorry but there's know question.
Answer:
3.5 Inches
Step-by-step explanation:
look at screenshot and answer question
Answer:
32x +20
Step-by-step explanation:
Answer:
32x+20
Step-by-step explanation:
If you use distributive property you would multiply each number by 4. 4 times 8x is 32x and 4 times 5 is 20, and when you put those together you get 32x+20!
I hope this helps, and have a great day!
PLEASE HELP ME
What is the value of this expression
Answer:sorry
Step-by-step explanation:
help i need help again fast
Answer:
donkey kong
Step-by-step explanation:
ssasdasdasdasdasdasda
Answer:
its c
Step-by-step explanation:
Pleasse Helppp Asapppp.
Answer:
77 degrees
Step-by-step explanation:
supplementary angles add up to 180 degrees
subtract 103 from 180 to get 77 degrees
please help√√√:-) 1111
Answer: 1246 for the first and 1400 for the second
Step-by-step explanation:
i need help with this. im confused.
Type the correct answer in the box. Use numerals instead of words.
C
D
B
In the figure, angle B measures 44º, angle A measures 62°, and angle E measures 50°
Complete the equation to solve for f, the measurement of angle F.
f= 180° - 50° -
the answer is 77 enjoy please like seroislyyyyyy round 50 cold war zombies!!!
Answer:
the answer is 77 please enjoy
Step-by-step explanation:
How do you graph g(x)=f(x)+5
Identify the horizontal asymptote of each graph.
y = 0
y = 1
y = 6
Identify the horizontal asymptote of each graph.
y = 0
y = –3
y = –5
Answer:
y = 0 and y = -3
Step-by-step explanation:
The horizontal asymptote of each graph is:
1. y=0
2. y= -3
What is asymptote?An asymptote of a curve y = f (x) that has an infinite branch is called a line such that the distance between the point (x, f (x)) lying on the curve and the line approaches zero as the point moves along the branch to infinity.
1.Given function:
t(x)= [tex]6^{x}[/tex]
If we apply limit x→∞, then we get y=c as horizontal asymptote
So, [tex]\lim_{x \to \infty} 6^{x}[/tex]= 0
Hence, the asymptote will by y=0.
2. Given function:
t(x)= [tex]5^{x}[/tex]-3
If we apply limit x→∞, then we get y=c as horizontal asymptote
So, [tex]\lim_{x \to \infty} 5^{x} -3[/tex]= -3
Hence, the asymptote will by y=-3.
Learn more about asymptote here:
https://brainly.com/question/4608493
#SPJ2
Let sin(2x)-sin(x)=0, where 0 ≤ x < 2pi. What are the possible solutions for x?
Step-by-step explanation:
sin2x - sinx = 0
2sinxcosx - sinx = 0
(Double Angle Formula)
sinx(2cosx - 1) = 0
Either sinx = 0 or cosx = 1/2.
When sinx = 0,
x = 0 or x = π.
When cosx = 1/2,
x = π/3 or x = 5π/3.
Hence the solutions are
x = 0, x = π/3, x = π or x = 5π/3.
To be able to go on a trip to South America, Salma decides to save for 2 years. She opens a savings account with $700 . The account pays simple interest at an annual rate of 5% . She doesn't make any more deposits.
(a) How much total interest will Salma earn?
(b) What will the total amount in the account be (including interest)?
Answer:
(a) I'm pretty sure it's $71.75
(b) the total would be $771.75 if i calculated it right...
A Solution of the equation,
3x2 + 2x + 1 = 0 is
Answer:
x = -3.5
Step-by-step explanation:
POE = PROPERTY OF EQUALITY
3*2 + 2x + 1 = 0
6 + 2x + 1 = 0 ## ^ Multiplication
7 + 2x = 0 ## ^ Combine like-terms
2x = -7 ## ^ Subtraction POE
x = -3.5 ## ^ Division POE
Answer:
X=0
Step-by-step explanation:
Use PEMDAS to get rid of some things. Do 3 x 2 = 6. Then distribute the like terms to one side seperating 2x and "0": +1 ---> 0-1 = -1. Now divide... 2x/2 = x (cancels out) and 0/2 = 0. Therefore X=0. But I'm not a computer so double check your answer.
PLS HELP ASAP I DONT HAVE TIME FOR THIS, IT ALSO DETECTS IF ITS RIGHT IR WRONG
Answer:
a
Step-by-step explanation:
25 x 10^9 in standard form
Answer:
25000000000
Step-by-step explanation:
How many kilometers are there in 4 miles?
Hint: 1 mi ≈ 1.6 km
Round your answer to the nearest tenth.
Explain how to isolate the variable in the equation−2/3+7=15. solve for n
Answer:
n = - 0.0833
Step-by-step explanation:
Given expression
[tex]\frac{-2}{3n } +7 = 15[/tex]
Cross multiplication , we get
[tex]\frac{-2}{3n } = 15 -7[/tex]
[tex]-2 = 8 X 3 n[/tex]
⇒ [tex]\frac{-2}{24} = n[/tex]
n = - 0.0833