Answer:
The output is -2 when the input is 3.
Step-by-step explanation:
You're actually being asked to evaluate y = -2x + 4 at x = 3. x is the 'input' and y is the 'output.'
At x = 3, y = -2(3) + 4 = -2
The output is -2 when the input is 3.
20 pounds to 16 pounds is what present
Answer:
Decreased by 20%.
16 lbs is 80% of 20 lbs.
Step-by-step explanation:
[tex]\frac{y}{100} :\frac{16}{20}[/tex]
y × 20 = 16 × 100
20y = 1600
20y ÷ 20 = 1600 ÷ 20
y = 80
100% - 80% = 20%
I will mark you brainliest if you answer this
show your working
8)(7x3 + 3x2+ 4x + 10) – (10 + 8x + 3x3)
9)(5x4– 4x3– 3x – 4) – (2x – 6x3– 2x4)
10) (7x3– 9x2– 7x – 8) – (8 – 4x2– 6x3)
11) 4(a + 5) – 5(a2– 4a + 7)
12) 8(y + 6) – 6(y2– 6y + 4)
13) 3(c – 4) – 5(c2+ 4c – 8)
[tex]\huge\color{purple}\boxed{\colorbox{black}{♡Solution}}[/tex]
8.
[tex]7 {x}^{3} + 3 {x}^{2} + 4x + 10 - 10 - 8x - 3 {x}^{3} \\ = 7 {x}^{3} - 3 {x}^{3} + 3 {x}^{2} + 4x - 8x + 10 - 10 \\ = 4 {x}^{3} + 3 {x}^{2}- 4x[/tex]
9.
[tex]5 {x}^{4} - 4 {x}^{3} - 3x - 4 - 2x + 6 {x}^{3} + 2 {x}^{4} \\ = 5 {x}^{4} + 2 {x}^{4} - 4 {x}^{3} + 6 {x}^{3} - 3x - 2x - 4 \\ = 7 {x}^{4} + 2 {x}^{3} - 5x - 4[/tex]
10.
[tex]7 {x}^{3} - 9 {x}^{2} - 7x - 8 - 8 + 4 {x}^{2} + 6 {x}^{3} \\ = 7 {x}^{3} + 6 {x}^{3} - 9 {x}^{2} + 4 {x}^{2} - 7x - 8 - 8 \\ = 13 {x}^{3} - 5 {x}^{2} - 7x - 16[/tex]
11.
[tex]4a + 20 - 5 {a}^{2} + 20a - 35 \\ = - 5 {a}^{2} + 24a - 15[/tex]
12.
[tex]8y + 48 - 6 {y}^{2} + 36y - 24 \\ = - 6 {y}^{2} + 44y + 24 \\ = 2( - 3 {y}^{2} + 22y + 12)[/tex]
13.
[tex]3c - 12 - 5 {c}^{2} - 20c + 40 \\ = - 5 {c}^{2} - 17c + 28[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\orange{Mystique }}{\orange{♡}}}}}[/tex]
Can someone help me out? I'm stuck. i think I've got the layout but I'm not sure??
Answer:
5.83 ft
Step-by-step explanation:
Pythagorean Theorem:
a² + b² = c²
3² + 5² = c²
9 + 25 = c²
34 = c²
c ≈ 5.8309 ≈ 5.83
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Find the slope of the line that passes through (10, 4) and (6, 3).
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
Answer:
The slope of the line that pass through the points (10, 4), and (6, 3) is 1/4
Step-by-step explanation:
The given points son the line are; (10, 4), and (6, 3)
The slope of a line is the rate of change of the y-values of the line relative to the x-values of the given line and the slope. 'm', can therefore be found by specifying two points on the line, (x₁, y₁), and (x₂, y₂), from which we get;
[tex]Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
Therefore, the slope of the found line is given as follows;
(x₁, y₁) = (10, 4) and (x₂, y₂) = (6, 3)
[tex]Slope \ of \ the \ line, \, m =\dfrac{3-4}{6-10} = \dfrac{-1}{-4} = \dfrac{1}{4}[/tex]
The slope of the line that pass through the points (10, 4), and (6, 3), m = 1/4
Which graph shows the solution to the system of linear inequalities?
Answer:
Send q picture of the graphs so I can help
Step-by-step explanation:
need pictures of graph
A square pyramid and its net are shown below. What is the surface area of the pyramid?
Answer:
376
Step-by-step explanation:
16×16+16×15÷2
=256+120
=376
If m and n are two natural number and m^n =8,then n^mn is.
Answer:
729
Step-by-step explanation:
M has to be 2 and n has to be 3, because 2^3 = 8
if it was 3^2 it would be 9
2^3 = 8
3^(2*3) = 3^6 = 729
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
simplify the following: 4(y + 2)
Answer:
answer
4( y+ 2 )
4y + 8
y = 8/4
y = 2
Answer:4
(
+
2
)
4(y+2)
4(y+2)
Simplify
1
Distribute
4
(
+
2
)
{\color{#c92786}{4(y+2)}}
4(y+2)
4
+
8
{\color{#c92786}{4y+8}}
4y+8
Solution
4
+
8
Step-by-step explanation:
I got it wrong because I’m not too good in math but help a girl out, please
Answer:
24 is right
Step-by-step explanation:
. There are 575 students in a school. If the number of girls is 54 more than the boys
how many boys are there in the school ?Find✌✌
there are 314.5 boys in the school .
Answer:
Solution given
let boys be x and girls be y.
now
according to the question;
x+y=575
and
y=x-54
substituting value of y in equation 1.
x+x-54=575
2x=575+54
x=629/2
x=314.5
Please i need this turned in by 2:00 om so dont answer if you dont know<3
Consider the equation 1.5x+4.5y=18.
1. If we graph the equation, what is the slope of the graph?
2. Where does the graph intersect the y-axis?
3. Where does it intersect the x-axis?
Answer:
slope = -1/3
y-intercept = 4
x-intercept = 12
Step-by-step explanation:
slope intercept form is
y = mx + b
m is the slope and b is the y-intercept
----------------------
rearrange into slope intercept form
1.5x + 4.5y = 18
subtract 1.5x from both sides
4.5y = -1.5x + 18
Divide both sides by 4.5
y = (-1/3)x + 4
------------------------
Slope
m = -1/3
---------------------
y-intecept
b = 4
---------------------
x intercept
this is where y = 0
0= (-1/3)x + 4
add (1/3)x to both sides
(1/3)x = 4
Multiply both sides by 3
x = 12
Look at the figure. If m 2JKM = 48, find m2).
Answer:
42 degrees
Step-by-step explanation:
triangle sum theorem says the sum of all triangles is equal to 180. I'm assuming this is a right triangle, so I created an equation similar to this:
90 + 48 + x = 180
Find the value of x.
Answer:
65
Step-by-step explanation:
65+50=115
180-115=65
what is the factor of 3x^{2} +9x-12=0[/tex]
1. Which term below could not be part of a polynomial expression?
- 3x
2
(1)
(3) x2
(2) 13
(4) 5x
Given sin=300° , determine which of the following is an equivalent expression.
a) sin 60°
b) sin 240°
c) sin 200°
d) sin 120°
Answer:
b. 240
Step-by-step explanation:
sin of 300 is equal to -.86
sin of 240 is equal to -.86
use calculator
PLEASE HELP DUE SOON PLEASE
Answer:
a.) He should shade in two
b.) This is because 7 is the magic number. This is in the sense that on player B's next turn there will be either 8 or 9 colored circles, which means you can just fill in the remaining amount.
Step-by-step explanation:
Two adjacent angles form an obtuse angle measured 164°. If m<1 = 3x+5 and m<2= 5x+9, find the measurement of the larger angle. Plz help and don't answer if you don't know for sure :) thxx
Answer:
102.75
Step-by-step explanation:
The two angles add to 164
<1 + <2 = 164
3x+5 + 5x+9 = 164
Combine like terms
8x+14 = 164
Subtract 14 from each side
8x+14-14 =164-14
8x = 150
Divide by 8
8x/8 = 150/8
x = 18.75
The larger angle is 5x+9 = 5(18.75) +9 =102.75
Kevin plants a 5-yard by 9-yard rectangular vegetable garden. He puts rope around the edges. The rope costs $2 per yard. What is the total cost of the rope?
Why was Elmo's Report Card All Wet?
Answer:
why was it ♂️
All of his grades were down below c level
hehe
=)
Need help with this question
10
c T is 4 units high. It is enlarged with a
scale factor of 4.
How high is the image?
Answer:
it is 14 pls make me brainliest pls
Step-by-step explanation:
Help please!
It takes 1 3/4 hours to cook a large chicken in the oven. What is this in minutes? -pic attached
Answer:
105 minutes
Step-by-step explanation:
[tex]1 \frac{3}{4} = 1 hour + \frac{3}{4} hour[/tex]
1 hour = 60 minutes
[tex]\frac{3}{4} \times 60 = 3 \times 15 = 45 minutes[/tex]
[tex]Therefore \ , \ 1 \frac{3}{4} = 60 + 45 = 105\ minutes[/tex]
The values of [tex]1\dfrac{3}{4}[/tex] hours in minutes is 105 minutes.
What are Arithmetic operations?Arithmetic operations can also be specified by the subtract, divide, and multiply built-in functions.
The operator that perform arithmetic operation are called arithmetic operators .
Operators which let do basic mathematical calculations
+ Addition operation : Adds values on either side of the operator.
For example 4 + 2 = 6
- Subtraction operation : Subtracts right hand operand from left hand operand.
for example 4 -2 = 2
* Multiplication operation : Multiplies values on either side of the operator
For example 4*2 = 8
/ Division operation : Divides left hand operand by right hand operand
For example 4/2 = 2
Given data as :
It takes [tex]1\dfrac{3}{4}[/tex] hours to cook a large chicken in the oven.
⇒ [tex]1\dfrac{3}{4}[/tex] hours = 1 hours + 3/4 hours
∵ 1 hour = 60 minutes
∴ 3/4 hours = (3/4)×60 = 45 minutes
Substitute the values in above equation,
⇒ [tex]1\dfrac{3}{4}[/tex] hours = 60 minutes + 45 minutes
⇒ [tex]1\dfrac{3}{4}[/tex] hours = 105 minutes
Hence, the values of [tex]1\dfrac{3}{4}[/tex] hours in minutes is 105 minutes.
Learn more about Arithmetic operations here:
brainly.com/question/25834626
#SPJ2
Explain how the vertical line test can be used to determine if a graph
is a function.
Answer:
Step-by-step explanation:
If we can draw any vertical line that intersects a graph more than once, then the graph does not define a function because a function has only one output value for each input value.
Example:
Answer:
Step-by-step explanation:
The vertical line test can be used to determine whether a graph represents a function. If we can draw any vertical line that intersects a graph more than once, then the graph does not define a function because a function has only one output value for each input value.
If your string is 95 cm long and the second string is 650 mm, then how many mm are the two line segments together
Answer:
1600mm
Step-by-step explanation:
total length of the line segment = length of the first string + length of the second string
to add the strings together, convert the length of the first string to millimetre
1cm = 10mm
95 x 10 = 950mm
950mm + 650mm = 1600mm
Please help with my math! Question number 2
Answer:
17.804
Step-by-step explanation:
Pythagorean theorem. 14^2 + 11^2 = c^2
Please help asap. Thank you! :)
When he cubed ,
Result is x³
On further squaring x³, he got = (x³)²
[tex] {x}^{6} [/tex]
Therefore, k = 6
Find the volume of the sphere.
Either enter an exact answer in terms of π or use 3.1414 for π.
~Show all works~
~Have a great day~
Answer:
288pi or approximately 904.32
Step-by-step explanation:
The volume of a sphere is
V = 4/3 pi r^3 where r is the radius
V = 4/3 pi (6)^3
V = 288 pi
If we use the approximation for pi
V = 288(3.14)
V =904.32
Answer:
V = 288π units³
Step-by-step explanation:
The formula for the volume of a sphere is V = (4/3)πr³.
With r = 6 units, the volume of this sphere is V = (4/3)π(6 units)³, or
V = (4π/3)(216 units³), or V = 288π units³
[(-2)⁴ + 3.(3² - 1)]: [(-2)³ + 3.2² ]
If the volume of the cylinder is approximately 1,357 in3, what is the radius?
whats the height of the cylinder....
we cant find radius if not given height too
V = pie r^2 h
1357 = 22/7 x r^2 x 12
1357 = 264/7 r^2
multiply both side by 7/264 ;
r^2 = 36
r = 6in
The question has the image missing. Check the attachment for the complete question.
The radius of the cylinder r = 6 in, given the volume of the cylinder, is 1357 in³.
What is the volume of a figure?The volume of a figure is the total space enclosed within the figure.
How do we determine the volume of a cylinder?The volume of a cylinder of radius r units, and height h units is determined using the formula,
The volume of the cylinder = πr²h.
How do we solve the given question?In the question, we are given a cylinder of the height of 12 inches and a radius of r inches.
The volume of the cylinder is given to be 1357 in³ approximately.
By the formula,
The volume of the cylinder = πr²h
or, 1357 = 3.14*(r²)*12
or, 1357 = 37.68r²
or, r² = 1357/37.68
or, r² = 36.013 ≈ 36 = 6²
∴ r = 6.
∴ The radius of the cylinder r = 6 in, given the volume of the cylinder, is 1357 in³.
Learn more about the Volume of a figure at
https://brainly.com/question/1972490
#SPJ2