Answer:
If something is a function, every x-value, only has one (1) y-value. If the line x = 0 intersects the graph in two points, there are to values for y (instead of one). Therefore the graph is not a function of x. This also means your answer is A. Hope this helps!!!
Answer:
A
Step-by-step explanation:
plz mark me brainliest
Caleb has 27 video games. He bought 8 more from a garage sale. He then sold 1/35 of his games to a used video game store. How many video games did he sell?
Answer:
1
Step-by-step explanation:
So first you add 27 and 8, which is 35.
If he sold 1/35 to a used store than he actually only sold 1.
To solve it with mathmatically you would do. (1/35)×(35)=1.
Which of these r-values represents the weakest correlation.
Answer:
-0.05
Step-by-step explanation:
Explain the significance of the equation y = 50x + 20 which represents the hourly cost of a car repair.
The questions doesn't really specify much here is as much I can say.
Since 50 is the slope we can say that this is the hourly cost of a car repair (as stated in the question).
20 represents the y-intercept so this could represent the cost for the technician to look at whats wrong with the car.
Best of Luck!
F(x) = 2x+1 and g(x) =x^2-7 find (f-g) (x)
Answer:
(f - g)(x) = -x² + 2x + 8
Step-by-step explanation:
Step 1: Plug in variables
2x + 1 - (x² - 7)
Step 2: Distribute the negative
2x + 1 - x² + 7
Step 3: Combine like terms
-x² + 2x + 8
Answer:
-x^2 +2x +8
Step-by-step explanation:
F(x) = 2x+1
g(x) =x^2-7
(f-g) (x) =2x+1 - ( x^2 -7)
Distribute the minus sign
= 2x+1 -x^2 +7
-x^2 +2x +8
What is the product? [ 4 2 ] x [ -2 5 7 -1 ]
Answer:
The fourth option is correct [6 18]Step-by-step explanation:
This problem has to do with matrix multiplication.
we have a row matrix multiplying a 2x2 matrix, this will result to a row matrix
=[4*-2+2*7] and [4*5+2*-1]
=[-8+14] and [20+-2]
=[6 18]
Answer:
c. (6,18)
Step-by-step explanation:
PLSSSSSSSSSSSSSSSSSSSSSSSSSS ANSWER THIS
Step-by-step explanation:
[tex](a.y^{3} +3y^{2} -3 ) = (ay^{2} +(4a+3)y +4(4a+3))(y-4) +64a+45[/tex]
so A = 64a +45
([tex]2y^{3} -5y+a =(2y^{2} +8y +27)(y-4) +108 +a[/tex]
so B = 108 +a
2A-B=0--> 2(64a+45)-108-a=0--> a =18/127
Differentiate x^(-3)/3-2x^2-x^(-1)
Answer:
-2x^2
Step-by-step explanation:
Simplify
x^-1 - 2x^2 - x^-1
becomes
-2x^2
You decide to buy a 60 in plasma-screen TV. You borrow $4500 from the
electronics store at 1.9% per month simple interest, with no payments due for
2 years from the date of purchase.
How much will you owe on the loan after 15 months? Round your answer to
the nearest whole dollar.
solve for a 3a−(10+5a)=54
Answer:
a = -32
Step-by-step explanation:
3a−(10+5a)=54
Distribute the minus sign
3a−10-5a=54
Combine like terms
-2a -10 = 54
Add 10 to each side
-2a-10+10 = 54+10
-2a = 64
Divide by -2
-2a/-2 = 64/-2
a = -32
Answer:
a = -32
Step-by-step explanation:
3a - (10 + 5a) = 54
Distribute the negative sign as if it were -1.
3a - 10 - 5a = 54
Combine like terms on left side.
-2a - 10 = 54
Add 10 to both sides.
-2a = 64
Divide both sides by -2.
a = -32
Which is true about the domains and ranges of the functions f(x) = 1/8sqrt(x) and g(x) = 8sqrt(x)?
They have the same domain and range.
They have different domains and different ranges.
They have the same range but different domains.
They have the same domain but different ranges.
Answer:
They have the same domain and range.
Step-by-step explanation:
Since both are derived from the parent graph f(x) = √x, we know that the domain of the parent graph is [0, ∞) and the range is also [0, ∞). Since both graphs are only being modified by vertical stretch/shrink, they still have the same domain and range as the parent graph. Therefore, both graphs have the same domain and range.
Answer:
They have the same domain and range
Step-by-step explanation:
they're both in the first quadrant
0.6y + 0.8 = 0.28y + 1.12
Answer:
y = 1Step-by-step explanation:
[tex]0.6y + 0.8 = 0.28y + 1.12[/tex]
Move the variable to L.H.S and change its sign:
[tex]0.6y - 0.28y + 0.8 =1.12[/tex]
Move the constant to R.H.S and change its sign:
[tex]0.6y - 0.28y = 1.12 - 0.8[/tex]
Calculate
[tex]0.32y = 0.32[/tex]
Divide both sides of the equation by 0.32
[tex] \frac{0.32y}{0.32} = \frac{0.32}{0.32} [/tex]
Calculate
[tex]y = 1[/tex]
Hope this helps...
Good luck on your assignment..
Answer:
Hello!
`~~~~~~~~~~~~~~~~~~~~
0.6y + 0.8 = 0.28y + 1.12 =
[tex]y = 1[/tex]
~~~~~~~~~~~~~~~~~`~~~
Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain the variable.
Hope this helped you. Brainliest would be nice!
☆_________________❤︎_________________☆
Can someone find the factored form? The first bracket and the second bracket. Thank you.
Answer:
(x-6) and (x+4)
Step-by-step explanation:
x^2 - 2x - 24
Factors of x^2 are x and x
24 are 6 and 4; 12 and 2; 24 and 1; and 8 and 3
Since the middle term is -2 and the 24 is a negative, the factors would have to result in a sum of -2
-6 +4 = -2
so the answer is (x-6)(x+4)
what is the (Highest Common Factor) HCF of 77, 91 and 143. Also give its index notation
Answer:
Hello!
____________________
77 = 1 x 7 x 11
91 = 1 x 7 x 13
143 = 1 x 11 x 13
Step-by-step explanation: There are no HCF's except 1. So 1 is the highest common factor. HCF ( 77, 91 143 ) = 1
Hope this helped you!
Answer:
HCF = 1
Step-by-step explanation:
Factors of 77 = 1,7,11,77
Factors of 91 = 1, 7, 13, 91
Factors of 143 = 1, 11, 13, 143
The Highest factor which is common in all of the factors is 1.
Index notation = [tex]1^1[/tex]
Hanna puts $4,383 in a savings account with an annual interest rate of 5.2 percent for 3 years. Into which variable should she substitute 4,383 in the simple interest formula I = p r t?
Answer:
p.
Step-by-step explanation:
I just took the quiz and got it correct.
Hope this helps! ^^
Answer:
p
Step-by-step explanation:
just took it
PLEASE HELP!!!
Here are the prices of five new skateboards, in dollars: 75, 82, 100, 120, 140.
The standard deviation is about $27.
If a sixth skateboard is added to the sample that has a price of $450, what
happens to the standard deviation?
Answer:
standard deviation=143.527
C
Step-by-step explanation:
75, 82, 100, 120, 140.
if we add 450
75, 82, 100, 120, 140,450
standard deviation=143.527
find the mean=sum /count=967/6=161.167
then find the √square difference between each sample and the mean, add up the differences²/6-1
find the square root of the differences=143.527
Answer:
C-the new standard deviation is greater the $27
PLEASE HELP ASAPPP ‼️‼️‼️‼️‼️
Answer:
See the attachment below.
Step-by-step explanation:
Best Regards!
SOMEONE PLZZZ HELP ME WITH THIS QUESTION!! I'd be immensely grateful :/
Answer:
Step-by-step explanation:
First let's find the value of x :
We khow that the area of this triangle is 400 and it is given by the product of the base and the height over 2
the base is x the height is 2x Let A be the area : A= (2x*x)/2 =2x²/2 =x² so x²= 400 ⇒ x= 20≥ 0 because it's a distanceLet's find the hypotenuse :
The pythagorian theorem :
h²= x²+(2x)² h²= x²+ 4x²h²= 5x² x=20⇒ h²= 5*(20)²h²= 2000h= 20[tex]\sqrt{5}[/tex] ≥0 because it is a distanceAn oblique cone has a radius of 5 units and a height of 9 units. What is the approximate volume of the oblique cone? Use π ≈ 3.14 and round to the nearest tenth. A)117.8 cubic units B)141.3 cubic units C)235.5 cubic units D)282.6 cubic units
Answer:
Option (C) 235.5 cubic units
Step-by-step explanation:
Data obtained from the question include:
Radius (r) = 5 units
Height (h) = 9 units
Pi (π) = 3.14
Volume (V) =..?
The formula for calculating the volume of an oblique cone is the same as the formula for calculating the right cone. The formula is given below:
V = 1/3πr²h
With the above formula, we can obtain the volume of the oblique cone as follow:
V = 1/3πr²h
V = 1/3 x 3.14 x 5² x 9
V = 3.14 x 25 x 3
V = 235.5 cubic units.
Therefore, the volume of the oblique cone is 235.5 cubic units.
Robyn saves up $204 and spends $32.50 on books. She wants to purchase more books from a sale where they cost $8.15 each. Which equation represents the situation? A. 204x=8.15+32.5 B. 8.15x+32.5=204 C. 8.15+32.5x=204 D. 32.5x=204⋅8.15
Answer: B
Step-by-step explanation:
If we assume the no. of books to be x.
Value of more books will be 8.15 x
The equation will be
8.15x + 32.5 = 204
Find the values of a, b, and c in the equation
below.
(x^5yz^4)^3/x^3yz=x^ay^bz^c
Answer:
a = 12, b = 2, z = 11
Step-by-step explanation:
(x^5yz^4)^3/(x^3yz)
= (x^15y^3z^12)/(x^3yz)
= x^12y^2z^11
=> a = 12
=> b = 2
=> z = 11
Answer:
a=12
b=2
z=11
Step-by-step explanation:
I got it right
Please answer my question now in two minutes
the answer is 56 m.
since the triangles are congruent their corresponding angles are equal and ML is corresponding side of77°and its corresponding side value is 56 m so, the value of ML is also 56 m.
the common ratio of a g.p is 3. given that the 5th term is greater than the first term by 400 what is the fifth term of the g.p.
Answer:
405.
Step-by-step explanation:
First term = a1
5th tern = a1 r^4
So a1r^4 - a1 = 400 r = 3 so:
3^4 * a1 - a1 = 400
a1(81-1) = 400
80a1 = 400
a = 5
Therefore the fifth term = 5* 3^4
= 405.
The first term and fifth term of Geometric progression will be 5 and 405, respectively.
What is a geometric sequence?Let a₁ be the first term and r be the common ratio.
Then the nth term of the geometric sequence is given as,
aₙ = a₁ · (r)ⁿ⁻¹
The common ratio of a g.p is 3. given that the 5th term is greater than the first term by 400. Then the equation is given as,
a₅ - a₁ = 400 ...1
a₅ = a₁ · 3⁴ ...2
From equations 1 and 2, then we have
81a₁ - a₁ = 400
80a₁ = 400
a₁ = 5
Then the value of the fifth term is given as,
a₅ = a₁ · 3⁴
a₅ = 5 x 81
a₅ = 405
The first term and fifth term of Geometric progression will be 5 and 405, respectively.
More about the geometric sequence link is given below.
https://brainly.com/question/11266123
#SPJ2
Sheila was making place-value disks. She colored 2/6 of the disks red. She colored 1/4 of the disks yellow. If she colored 40 red place value disks, how many disks did she color yellow? How many disks does she still have left to color?
Answer:
She colored 30 yellow place value disks and 50 disks are left to color.
Step-by-step explanation:
Let total number of disks be x.
It is given that, she colored 2/6 of the disks red. She colored 1/4 of the disks yellow.
[tex]\text{Red disks}=\dfrac{2}{6}x[/tex]
[tex]\text{Yellow disks}=\dfrac{1}{4}x[/tex]
She colored 40 red place value disks.
[tex]\dfrac{2}{6}x=40[/tex]
[tex]\dfrac{1}{3}x=40[/tex]
[tex]x=120[/tex]
It means total number of disks is 120.
[tex]\text{Yellow disks}=\dfrac{1}{4}x=\dfrac{1}{4}(120)=30[/tex]
So, she colored 30 yellow place value disks.
Remaining disks = Total disks - Red disks - Yellow disks
[tex]=120-30-40[/tex]
[tex]=50[/tex]
Therefore, 50 disks are left to color.
Find the area of the regular polygon.
32
Answer: 45
Step-by-step explanation: that is correct
Identify the underlined place in 75.733. Then round the number to that place
Answer:
I'm sure it's The seven after the ( . )
Step-by-step explanation:
Find the number in the tenth place 7 and look one place to the right for the rounding digit 3 Round up if this number is greater than or equal to 5 and round down if it is less than 5 . So it's 75.7
Answer:
The tenths place. The rounded answer would be 75.7
Step-by-step explanation:
. (43 x 2) x 5 = 43 x (2 x 5)
what property is this
Answer:
This property is known as the associative property
Step-by-step explanation:
In the associative property, you rearrange the numbers so they make the most sense in what position they are in.
Hope this helps! :)
Answer:
associate property
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HELPPPPPPPPP ! In circle O, what is measure of Arc AE? A. 84 B. 96 C. 120 D. 168 BTW I HAVE MORE QUESTIONS UP IF YOU WANT TO HELP!!!!!1
Answer:
arc m AE = 120
Step-by-step explanation:
∠C = 1/2 (AE-BD)
We can fill most of that in with the info we were given:
36= 1/2(AE-48)
Multiply both sides by 2 to get
72 = AE - 48 so
AE = 120°
What is the equation of the line that passes through the point (-1,-5) and has a
slope of -1?
Answer:
y = -x -7
Step-by-step explanation:
-5 = -1(-1) + b
-7 = b
y = -x -7
Answer:
y=−x−6
Step-by-step explanation:
The y-intercept is b=y1 −m⋅x1
b=−5−(−1)x(−1)=−6.
so y=mx+b.
y=−x−6.
Answer:
The slope of the line is m=−1.
The equation of the line in the slope-intercept form is y=−x−6.
What is the value of x in the equation 4x +8y=40, when y=0,8?
Answer:
x=8.4
Step-by-step explanation:
4x +8y=40
replace y as 0.8
4x+8*0.8=40
4x+6.4=40
subtract 6.4 from both sides
4x=33.6
divide by 4
x=8.4
Step-by-step explanation:
4x + 8y = 40
Simplify the equation
Divide all terms by 4
We have
x + 4y = 10
Make x the subject
x = 10 - 2y
When y = 0.8
Substitute the value of y into the equation
We have
x = 10 - 2(0.8)
x = 10 - 1.6
x = 8.4
Hope this helps you
can someone please help me solve
Answer:
b
Step-by-step explanation: