In the quadratic equation x2 - 8x + a = 0; what is the value, a, in order to form a perfect square?
Answer:
16
Step-by-step explanation:
(x - y)² = x² - 2xy + y²
x = x and y = a
2xy = 8x
2*x*a = 8x
a = [tex]\frac{8x}{2x}[/tex]
a = 4
a² = 16
I need help please!!!
A store sells a television for $1000. There are two payment options. Which option is better? ( PLS HELP!! I'M RLY STRUGGLING!! :< )
Use SAS to explain why ∆XYZ ≅ ∆VWZ !!!!!!!!!! Answer correctly !!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!
4. Find
A) 64.5
B) 68.5
C) 72.5
D) 76.5
Answer:
A) 64.5
Step-by-step explanation:
A circle's measurement is 360°.
It is given that arcPQ is 113° and arcQM is 118°. Subtract 113 and 118 from 360:
360 - (113 + 118) = 129°
ArcPM is 129 degrees. Note that this is a inscribed, but not a central angle. m∠PQM = (ArcPM)/2
m∠PQM = (129)/2
m∠PQM = 64.5
A) 64.5 is your answer.
~
Solve for x
triangle abc is similar to triangle aed
Answer:
9/5 or 1.8
Step-by-step explanation:
triangle aed is larger than triangle abc by a scale factor of 5; we know this because side ed is 5 units and cb, the corresponding side in triangle abc, is 1. if ad has a length of 9, the length of ab must be 9 divided by five. thus, z is equal to 9/5 or 1.8.
If g(x) = −3x + 4, what is the value of g(−3)?
A. 13
B. 5
C. −5
D. -13
Answer:
13
Step-by-step explanation:
g(x) = -3x + 4
g(-3) = -3 × -3+4
g(-3) = 9 + 4
g(-3) = 13 ........
The area of a square room is 256 square feet. What is the length of one wall?
Answer: The length of one wall is 16ft
Step-by-step explanation: √256=16ft
Answer:
64ft
Step-by-step explanation:
256 divided by 4 since it is a square they are all even corners.
someone help me out. explain maybe
Find the midpoint of the segment with the following endpoints.
(−9,2) and (−5,−6)
Answer:
(-7, -2)
Step-by-step explanation:
ASAP, REALLY EASY If x = -3 then what is -x
Answer:
3
because it says -3
so yeah
atleast i hope Im so bad at math
PLS HELP WILL GIVE BRAIN THINGY
Answer:
Teachers are tough
Step-by-step explanation:
your welcome i hope you do good in ur test! :)
Josh went for a drive in his new car. He drove for 6 hours at a speed of 38.4 miles per hour. How many miles did he drive
Christina had a total of $120 to spend while shopping. She already spent $68 on clothes . She wants to buy some video games that are on sale for $10 each, including tax.
Answer:
5 video games.
Step-by-step explanation:
In order to find the total number of video games that Tracy can buy with the money, she has we first need to find how much money she has left after buying the clothes. To do this we subtract the amount she spent on clothes by the initial total that Christina had.
120 - 68 = 52
Now that we know Christina has a remaining $52, we can divide this amount by the value of each individual game ($10) in order to calculate how many she can actually afford.
52 / 10 = 5.2
Finally, we can see that she can afford to only buy 5 video games.
Someone plz help giving brainliest
Answer:
you just have to simply 15/28 then din your answer for tje model from there
A sequence defined by the rule f(n)=4f(n-1)+2.if f(1)=3 then find f(4)=?
Answer:
f(4) = 6
Step-by-step explanation:
Given the rule f(n) = 4f (n - 1) + 2 where f(1) = 3, f(n) is just a fancy way to name the variable y. As you've seen before, there are equations that are usually y equals x and something. For example:
y = mx + b
is the same thing as
f(n) = y = mn + b.
It might be that you have multiple of the same equation where f(n) and f(x) have two different outcomes.
The f(n) part (bolded) is the "x variable" in this equation. So in f(1), n = 1.
f(n) = 4f (n - 1) + 2
f(n) = (4fn - 4f) + 2
f(n) = (n) + 2
f(1) = 1 +2
3 = 3
Now do the same thing for f(4):
f(n) = 4f (n - 1) + 2
f(n) = (4fn - 4f) + 2
f(n) = (n) + 2
f(4) = 4 + 2
f(4) = 6
The polygons in each pair are similar. Find the missing side length.
A.5
B.6
C.11
D.8
Can you please help meeeeeeee
Write an equation for a line perpendicular to f(x)=5x−1 and passing through the point (5,20)
Answer:
y - 20 = (-1/5)(x - 5)
Step-by-step explanation:
The slope of the given line is 5. The slope of any line perpendicular to the given line is the negative reciprocal of the given slope:
Slope of perpendicular line here is -1/5.
We use the point-slope formula as a framework here:
y - 20 = (-1/5)(x - 5)
3. solve (-7) + b = (-11)
svjdp jeos firj r rrr
Two membership levels are offered at a local bookstore. how many books need to be purchased from each membership so that the 2 membership levels cost the same
Answer:
.
Step-by-step explanation:
Please help me with this worksheet.
It costs $50 every two days to rent a bike. The amount y (in dollars) is proportional to the number x of days the bike is rented. a. Find the rate of change (slope) in simplest form. b. Write an equation that represents the situation. c. How many dollars will you pay for renting the bike 6 days?
Answer:
y=mx + c
Step-by-step explanation:
you find the answer using this equation
if (3,-4) is reflected over the line x=2 what is the image
Answer:
The coordinates of are (-9,4)
Step-by-step explanation:
A
5
B
10
C
6
D
4
pls help
Answer:
Pretty sure it's C.
Step-by-step explanation:
A and B are 6 units away from each other.
Answer:
C
Step-by-step explanation:
Count the boxes
In ASTU, the measure of angle U=90°, SU = 33, TS = 65, and UT = 56. What is the value
of the tangent of angle S to the nearest hundredth?
Answer:
Step-by-step explanation:
A program contains the following statements: X = grade If 90: print ("You are an A student!") What action will the program take when x = 89? print "You are an A student!" print "grade - 89" print nothing print "You are a B student!"
Answer:
C. Print Nothing
Step-by-step explanation:
For those who don't wanna read
Answer:
The program is going to print nothing because the script does not tell it to say anything other than when the grade (x) is greater than 90.
Therefore,the correct option is 3, print nothing
what is the value of 6(2b-4) when b+5?
Answer:
The value of 6(2b-4) is 36.
Step-by-step explanation:
Given expression: 6(2b-4)
To find the value of 6(2b-4) at b=5, we need to substitute the b=5 in the expression, we get
6(2(5)-4)
= 6(10-4)
=6(6)
= 6x6=36
⇒ 6(2(5)-4)=36
Answer:
The value of 6(2b-4) when b=5 is 36.
Step-by-step explanation:
Given expression: 6(2b-4). To find the value of 6(2b-4) at b= 5, we need to substitute the b=5 in the expression, we get….Therefore, the value of 6(2b-4) is 36, when b=5.
a³ × a² help me get the answer for this
Answer:
a^5
Step-by-step explanation:
A law of indices states that a^b + a^c = a^(b+c)
a^3 x a^2 = a^5
Hope this helps