Dependent variable is the output value and the independent variable is the input value. So for y=5x-3, when you input x=3, the output is y=12.
y is the dependent variable.
x is the independent variable.
Every dimension of a triangular pyramid is multiplied by 10 to produce a new figure that is geometrically similar. What effect does this have on the surface area of the pyramid?
A.
The surface area of the pyramid is multiplied by 10.
B.
The surface area of the pyramid is multiplied by 50.
C.
The surface area of the pyramid is multiplied by 100.
D.
The surface area of the pyramid is multiplied by 1,000.
E.
The effect on the surface area cannot be determined.
Answer:
C
Step-by-step explanation:
Since the question is asking for surface area and the dimensions are multiplied by 10, the surface area is multiplied by 10^2, or 100. (For area it would be 10^3, or 1000)
what is the value of x in these questions
a)2x/3=8
b)3x/2=6
c)3x+4=25
d)x/3-2=6
e)x/5+1=5
Answer:
a X=12
B X=4
C X=7
D X=24
E X=20
Answer:
a) 12 b) 4 c) 7 d) 24 e) 20
Step-by-step explanation:
a)
[tex]2x = 24[/tex]
[tex]x = 12[/tex]
b)
[tex]3x = 12[/tex]
[tex]x = 4[/tex]
c)
[tex]3x = 21[/tex]
[tex]x = 7[/tex]
d)
[tex]x \div 3 = 8[/tex]
[tex]x = 24[/tex]
e)
[tex]x \div 5 = 4[/tex]
[tex]x = 20[/tex]
For which x is f(x)?=-3
Answer:
[tex]-7[/tex]
Step-by-step explanation:
[tex]f(-3)=-7[/tex]
What is the slope of the line that passes through the points (-8, -3) and
(-12, -3)? Write your answer in simplest form.
Answer:
slope = 0
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 8, - 3) and (x₂, y₂ ) = (- 12, - 3)
m = [tex]\frac{-3+3}{-12+8}[/tex] = [tex]\frac{0}{-4}[/tex] = 0
Slope is rise per run. Rise is difference of y ordinates and run is difference of corresponding x abscissa.
The slope of the line that passes through the given points is 0
Given that:The two specified points are: (-8,-3), and (-12, -3)To find:
Slope of the line that passes through given points.
In graphing, we use Cartesian plane and assume y axis to be perpendicular and mostly we take height or depth related stuffs on y axis, that's why y ordinates will be considered to calculate the rise and x axis is like flat ground, thus x abscissa will be used to calculate the run.
Let the points' coordinates are denoted by symbols as:
[tex](x_1, y_1) = (-8,-3)\\ (x_2, y_2) = (-12, -3)\\ [/tex]
[tex]slope = \dfrac{rise}{run} = \dfrac{y_2 - y_1}{x_2 - x_1} = \dfrac{(-3) - (-3)}{(-12)-(-8)} = \dfrac{0}{-4} = 0[/tex]
Slope is zero means you run whatever, the rise is 0, which means the line is not going to rise and stay flat (horizontal).
Learn more about slope of straight lines here:
https://brainly.com/question/1892775
Which of the following describes the translation of the graph of y=x? to obtain the graph of y=-x2+3?
reflect over the x-axis and shift right 3
o reflect over the x-axts and shift up 3
reflect over the y-axis and shift down 3
Answer:
Reflect over the x-axis and shift up 3.
Answer:
Reflect over the x-axis and shift up 3
Step-by-step explanation:
What is the perimeter of a rectangle with a length of 40 feet and a width of 12 feet? A. 32 feet B. 64 feet C. 104 feet D. 480 feet
Answer:
C. 104 feet
Step-by-step explanation:
The formula for the perimeter of a rectangle is p= 2(L+W). All you have to do is plug in your values.
What are the x intercept and the y intercept of this function
Answer:
D
Step-by-step explanation:
When you graph, you can see that the Line crosses the x at (-3,0) and then passes through the y at (0, 12)
Answer:
D
Step-by-step explanation:
To find the intercepts, set the variable you are not trying to find to 0. Also, in case you don't know, f(x) and y are the same thing here. So on this question, it would be:
X-Intercept:
0=4x+12
-12=4x
-3=x
so x intercept is (-3,0)
Y-Intercept:
y=4(0)+12
y=12
so y intercept is (0,12)
liz is installing a tile backsplash. if each tile is an equilateral triangle with sides that measures 6 cm in length how many tiles does she need to cover an area of 1800 cm²
Answer:
116 tiles
Step-by-step explanation:
You want to know the number of 6 cm equilateral triangle tiles required to cover 1800 cm².
AreaThe area of an equilateral triangle of side s is given by the formula ...
A = (√3/4)s²
The area of a 6 cm equilateral triangle tile is ...
A = (√3/4)(6 cm²) = 9√3 cm² ≈ 15.588 cm²
TilesThe number of tiles required is the total area divided by the area per tile:
1800 cm² / (15.588 cm²/tile) ≈ 115.47 tiles
In order to cover 1800 cm², Liz will need 116 triangular tiles.
Answer:
100 tiles
Step-by-step explanation:
Each tile is an equilateral triangle with sides 6 cm in length, so the area of each tile can be found using the formula for the area of a triangle:
[tex]\sf:\implies{A = (b \times h) / 2}[/tex]
where b is the base and h is the height.
Since each side of the triangle is 6 cm, the base and height of the triangle are both 6 cm, so:
[tex]\sf:\implies{A = (b \times h) / 2}[/tex]
[tex]\sf:\implies{A = (6 \times 6) / 2}[/tex]
[tex]\sf:\implies{A =18}[/tex]
So each tile has an area of 18 cm².
To find the number of tiles needed to cover an area of 1800 cm², divide the total area by the area of each tile:
[tex]\sf:\implies{A = 1800 / 18}[/tex]
[tex]\sf:\implies{A = 100}[/tex]
Therefore, Liz needs 100 tiles to cover an area of 1800 cm².
What is the solutions for x in the equation -2x+14+10x=34
Answer:
x=2.5
Step-by-step explanation:
Put the like terms together, like so:
10x-2x=34-14
The result is this:
8x=20
Simplify to get:
x=2.5
Answer:
x= 2 1/2 or x=2.5
The graph shown is a scatter plot:
Which point on the scatter plot is an outlier?
Point S
Point T
Point U
Point V
Answer:
B
Step-by-step explanation:
I am not good at math, but I know because it's basically out and not with the other dots lol.
if p(x) = x^99 + 99 , then find p(1)
Answer:
p(1)=100
Step-by-step explanation:
p(1) just means "substitute the value (1) in for (x) in the equation"
So,
[tex]1^{99}[/tex]+99= 100
(1 to any power is always equal to 1, including 0)
Emma needs 40 pieces of string to wrap presents. Each piece of string is 7.5 inches. If the ribbon is only available in feet, how many feet of ribbon does Emma need?
Answer:
2635*'fhhdgjvsvaksgwksygwi at gwjsksgeieh egg ejei
PLZZZ HELPP 3+7 - 1/2 is an example of A. a numerical equation B. an algebraic equation C. a numerical expression D. an algebraic expression
Answer:
A. a numerical equation
Step-by-step explanation:
how would you change x + 3y = 18 -3x - 12y = -75 to eliminate y
Answer: [tex]\bold{y=-\dfrac{1}{3}x+6}[/tex]
[tex]\bold{y=-\dfrac{1}{4}x+\dfrac{25}{4}}[/tex]
Step-by-step explanation:
x + 3y = 18
- x -x
3y = -x + 18
÷3 ÷3 ÷3
y = (-1/3)x + 6
-3x - 12y = -75
+3x +3x
-12y = 3x - 75
÷-12 ÷-12 ÷-12
y = (-1/4)x + (25/4)
Can someone plzzzzzz help? I'll give points and mark as brainliest!
Answer:
x = 19° ; Write 19° in the box ( don't forgot ° or answer will be incorrect )
Step-by-step explanation:
If XW ║YZ, we can tell that YW is a transversal, as YW ∩ XW, YX;
By alternate interior angles, ∠ ZYW ≅ ∠ YWX, so that ⇒
m∠ ZYW = m∠ YWX,
m∠ YWX = 2x, ⇒ given m∠ ZYW = 2x
By ∑ of angles in triangle Theorem;
m∠ YXW + m∠ XYM + m∠ YWZ = 180° ⇒ through substitution,
( 3x - 5 ) + 90 + ( 2x ) = 180 ⇒ now apply algebra,
3x - 5 + 90 + 2x = 180 ⇒ combine like terms,
3x + 2x - 5 + 90 = 180 ⇒ add,
5x + 85 = 180 ⇒ subtract 85 from either side of equation,
5x = 95, divide 5 on either side,
x = 19°
Solution; x = 19°
A cone has a height of 36 cm and a volume of 588π cm3. What is its radius? ( The question I am working on..)
Steps:
Shape: Cone
Solved for radius
Height: 36 cm
Volume: 588 cm3
Formula= r=√3v/πh
R= Radius
H= Height
Description:
Using the formula r=√3v/πh, we have to calculate the radius. We know that the height is 36 and the volume of 588. We use the formula and get the answer. The answer we get is r≈3.95cm.
Answer: r≈3.95cm
Please mark brainliest
Hope this helps.
Answer:
r = 7cm
Step-by-step explanation:
[tex]h = 36 \\Volume = 588pi\\r = \\588pi = \frac{1}{3}pir^{2} 36\\Cross-multiply\\1764pi=36pir^{2} \\Divide-both-sides-of-the-equation-by-36pi\\r^{2} =\frac{1764pi}{36pi} \\r^{2} = 49\\Square -root-both-sides-of-the-equation.\\\sqrt{r^{2} } =\sqrt{49} \\r = 7[/tex]
Graph the equation below by plotting the
y-intercept and a second point on the
line. When you click Done, your line will
appear.
y=-5x + 2
Answer:
(0,2), (1,-3)
Step-by-step explanation:
Answer:
The first point is on the y-axis where you are pointing at (0,2) Plot the next point down 5 and 1 to the right at (1,-3).
Step-by-step explanation:
In slope intercept form, the coefficient x is the slope. That's -5 in this example. The constant is the y-intercept. That's 2 in this example.
How many solutions is this 2x+8=-2x+8
Answer:
Step-by-step explanation:
4x + 8 = 8
4x = 0
x = 0
onw
Answer:
One solution x=0
Step-by-step explanation:
2x+8=-2x+8
Add 2x to each side
2x+2x+8=-2x+2x+8
4x+8=8
Subtract 8 from each side
4x+8-8=8-8
4x = 0
x=0
There is one solution
x=0
Problema:1,745 kilómetros de distancia entre Mérida, Yucatán y Ciudad Victoria, Tamaulipas.1: 100 000 Escala en el mapa.¿Cuántos centímetros representan estos kilómetros en el mapa?
Answer:
1745 centimeters.
Step-by-step explanation:
The first thing is to pass the kilometers to centimeters, we know 1 km equals 100000 cm, therefore:
1745 km * 100000 cm / 1 = 174500000 cm
Now, when applying the scale, we have that it is 1: 100000, so we apply the scale:
174500000 * 1/100000 = 1745
That is to say that on the map those 1745 kilometers represent 1745 centimeters.
What Is the fraction 2/8+4/8
Answer:
6/8 which simplifies to 3/4
Step-by-step explanation:
2/8 + 4/8
Since the denominator is the same, we can just add the numerators
2+4 =6
6/8
Simplifying the fraction by dividing the top and bottom by 2
3/4
Please answer correctly !!!!!! Will mark brianliest !!!!!!!!!!!
Answer: 2
Step-by-step explanation:
Please answer correctly !!!!!!!! Will mark brainliest !!!!!!!!!!!!!
Answer:
The discriminant is 0
That means there is one real zero
Step-by-step explanation:
3x^2 + 24x + 48
This in the form
ax^2 +bx+c
a=3 b=24 c = 48
The discriminant is
b^2 - 4ac
24^2 - 4(3)(48)
576-576
0
The discriminant is zero
That means there is one real zero
What is the equation of a line passing through (-3, 7) and having a slope of -1 ?
5
O A.
y = -5x + 22
OB. y= 5x + 22
O C.
1 32
yaX+
5 5
32
y = --X+
5 5
OD
1
O E.
y ---X+
x + 22
Answer:
Using the information given, we can use the point-slope form:
y - y1 = m(x - x1)
y - 7 = -1(x + 3)
y - 7 = -x - 3
+7 +7
y = -x + 4, this is slope-intercept form
x + y = 4, this is standard form
Find the value of n 5^10 ÷ 5^8=(1/5)^n
Answer:
5^10 / 5^8 = 5^2 = 25 so the equation becomes 25 = (1/5) ^ n. This means that n = -2.
Answer:
[tex]n=-2[/tex]
Step-by-step explanation:
[tex]\frac{5^{10}}{5^8}=(\frac{1}{5})^n[/tex]
Use the law of exponents.
[tex]5^{10-8}=\left(\frac{1}{5}\right)^n[/tex]
1/5 can be written with a base of 5.
[tex]5^{10-8}=\left(5^{-1}\right)^n[/tex]
Cancel the base 5 on both sides.
[tex]10-8=-1\times \:n[/tex]
[tex]2=-n[/tex]
Multiply both sides with -1.
[tex]n=-2[/tex]
Alina and Skyla are both solving the equation 2x = 128.
Alina knows the solution to the equation because she knows a power of 2 that equals 128.
Skyla does not know a power of 2 that equals 128, so she graphs two equations, y = 2x and y = 128.
Use the drop-down menus to complete the explanation about how Skyla can use her graph to solve the equation 2x = 128.
Answer:
Skyla looks for the x-value at which the graph of the function [tex]2^x[/tex] intersects the horizontal line defined by the constant function: [tex]f(x)=128[/tex]
Step-by-step explanation:
Look for an answer that involves something like:
By looking for the point where both functions intersect, Skyla can find for which x value the following equation is verified: [tex]2^x=128[/tex]
She must read at which x-value the intersection occurs, and that is the answer.
Answer: Intersect at (7,128) and x=7
Step-by-step explanation:
Emma spent $21.23 on two thousand bagels and a gallon of iced tea the price of the gallon of iced tea with $5.25 the following equation can be used to find d the price of the each dozen of bagels
Answer:
$21.23 - $5.25 = d
Step-by-step explanation:
I need help,please.this is an interior angle problem.
Answer:yes
Step-by-step explanation:
<BAC=<BDE
<BCA=BED
Which sum or difference is modeled by the algebra tiles?
Answer:
C
Step-by-step explanation:
Blue is postive and Red is Negative so you would just write them down as seen and because x^2 is negative in the second equation there will be a subtraction sign to represent it.
Which of the following choices evaluates -2x2 + 4x, when x = -2?
Answer:
x = -2
-2(-2^2) + 4(-2)
-2(4) + -8
-8 + -8Answer = -16 is the answer.Allison owns a food truck that sells tacos and burritos. She only has enough ingredients to make 98 tacos or burritos.Write an inequality that could represent the possible values for the number of tacos sold, tt, and the number of burritos sold, bb, that would satisfy the constraint
Answer:
98=49bb+49tt
Explain:
so u have the same amount of both