Step-by-step explanation:
a. represent the man's current age by n. Two years ago his age was n - 2.
b. Multiplication of n by the product of y and z would be (y×z)×n.
DUE IN 25 MINUTES OMG- PLS HELP IF YOU CAN
Convert factored form to standard form then identify y-intercept
(2x + 1) (x - 3)
Answer:
2 x ^2 − 5 x − 3
Step-by-step explanation:
Answer is the problem in standard form then the y-intercept would be -3
helpppppp me pleasee
Answer:
the volume would be 84
Step-by-step explanation:
multipacation
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:
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
A first number is 4 less than a second number. Four times the first number is 6 more than twice the second. Find the numbers
Answer:
first number = 7
second number = 11
Step-by-step explanation:
A first number is 4 less than a second number
f = s - 4
Four times the first number is 6 more than twice the second
4f = 2s + 6
-----------------------------
Substitute for f = s - 4
4(s - 4) = 2s + 6
distribute
4s - 16 = 2s + 6
subtract 2s from both sides
2s - 16 = 6
add 16 to both sides
2s = 22
Divide both sides by 2
s = 11
Substitute for s = 11 in
f = s - 4
f = 11 - 4
f = 7
A Group of students is tracking a friend, John, who is riding a Ferris wheel. They know that John reaches the Maximum height of 11 m at 10 seconds and then reaches the minimum height of 1 m at 55 seconds.
What is the period of the function and what does it represent in this situation?
The period represents how long it takes go from one max to the next max (ie peak to peak). It also represents going from min to min.
======================================================
Explanation:
It reaches the max at 10 seconds, and then it reaches the min at 55 seconds. This is a timespan of 55-10 = 45 seconds. This is exactly half the period. It doubles to 2*45 = 90 seconds. This is the time period between any two points in time when you're at the max height (from one max to the next adjacent max).
So you're at the max height at 10 seconds, then min at 55 seconds, then the max again at 100 seconds. Note how 100-10 = 90.
The period of any trig function is basically telling us when the function or cycle repeats itself. Once we reach the peak again, the ride repeats itself from before.
-----------
Notes:
90 seconds = 1 minute, 30 seconds = 1.5 minutesThe actual heights listed (11 m and 1 m for the max and min respectively) do not play a role in determining the period. So the heights can be anything we want, and the period will stay at 90 seconds.Roger just ran 5 laps. He is at 20% of his goal.
How many more laps until he is finished reaching
his goal?
25 laps The Principal never visited the arts section.
4 laps The Principal never visited the bathroom
15 laps The Principal never visited the History section
20 laps The Principal never visited the office or arts
section.
Answer: 20 laps
Step-by-step explanation:
Given
Roger just ran 5 laps and completes 20% of his goal
Suppose his goal is x laps
So, 20% of x must be equal to 5
[tex]\Rightarrow 20\%\times x=5\\\Rightarrow 0.2x=5\\\\\Rightarrow x=\dfrac{5}{0.2}\\\\\Rightarrow x=\dfrac{50}{2}\\\\\Rightarrow x=25\ \text{laps}[/tex]
So, he needs 20 more laps to complete his goal.
What is the equation of the line tangent to the function f(x) = 4x^2 + 5x at the point (-2, 6).
Will give brainliest! Thank you.
Answer:
[tex]y=-11x-16[/tex]
Step-by-step explanation:
We want to find the equation of the tangent line to the function:
[tex]f(x)=4x^2+5x[/tex]
At the point (-2, 6).
First, we will need the slope of the tangent line. So, differentiate* the function:
[tex]f'(x)=8x+5[/tex]
Find the slope when x = -2:
[tex]f'(-2)=8(-2)+5=-11[/tex]
Now, we can use the point-slope form:
[tex]y-y_1=m(x-x_1)[/tex]
Our point is (-2, 6) and our slope is -11. Substitute:
[tex]y-(6)=-11(x-(-2))[/tex]
Simplify:
[tex]y-6=-11(x+2)[/tex]
Distribute:
[tex]y-6=-11x-22[/tex]
And add six to both sides. Therefore, our equation is:
[tex]y=-11x-16[/tex]
If you have not yet learned differentiation, here's the method using the difference quotient! The difference quotient is given by:
[tex]\displaystyle f'(x)=\lim_{h\to 0}\frac{f(x+h)-f(x)}{h}[/tex]
Here, x = -2. Substitute:
[tex]\displaystyle f'(-2)=\lim_{h\to 0}\frac{f(-2+h)-f(-2)}{h}[/tex]
Substitute (we are given the point (-2, 6). So, f(-2) = 6).
[tex]\displaystyle f'(-2)=\lim_{h\to 0}\frac{(4(-2+h)^2+5(-2+h))-(6)}{h}[/tex]
Expand and simplify:
[tex]\displaystyle f'(-2)=\lim_{h\to 0}\frac{(4(4-4h+h^2)+(-10+5h))-(6)}{h}[/tex]
Distribute:
[tex]\displaystyle f'(-2)=\lim_{h\to 0}\frac{16-16h+4h^2-10+5h-6}{h}[/tex]
Simplify:
[tex]\displaystyle f'(-2)=\lim_{h\to 0}\frac{4h^2-11h}{h}[/tex]
Evaluate the limit (using direct substitution):
[tex]\displaystyle f'(-2) = \lim_{h\to 0}4h-11=4(0)-11=-11[/tex]
determine the equation of the circle graphed below
Answer:
The equation would be (x – 3)^2 + (y – 4)^2 = √26^2 or 26.
Step-by-step explanation:
Firstly, we need to find the radius of the circle. In this case, through the Pythagorean theorem, we can find it to be √(9-4)^2 + (4-3)^2 = √25 + 1 = √26.
Therefore, the equation of the circle would be (x – h)^2+ (y – k)^2 = r^2, where h and k are the x and y-coordinates of the center of the circle respectively, and r is the radius. Hence, the equation of this circle would be (x – 3)^2 + (y – 4)^2 = √26^2 or 26.
Hope this helped!
Answer:
(x - 3)² + (y - 4)² = 26Step-by-step explanation:
Equation in standard form:
(x - h)² + (y - k)² = r²,where (h, k) is the center and r- radius
On the graph we have (h, k) = (3, 4)
Find the r² using the distance formula:
r² = ( 4 - 3)² + (9 - 4)² = 1² + 5² = 26The equation is:
(x - 3)² + (y - 4)² = 26(7^2*5^6)^4 equivalent expression
This is what you get when you simplify the problem.
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
answer pelase answer please
Answer:
The y intercept of Function A is less than the y intercept of Function B.
Step-by-step explanation:
To find the y-intercept of the equation for A set x=0 and solve for y
Y=4(0)+1 therefore the y intercept for equation A is y=1
To find the y intercept for graph B you find the point where the graph intercepts the y axis which in this case it looks like it intercepts(crosses) the y axis at y=2
Therefore equation A y- intercept(y=1) < equation B y-intercept (y=2)
Hopefully this helps! If it did please mark brainliest! Feel free to ask me any other questions :)
What is the value of x?
Answer:
5x
Step-by-step explanation:x
Does the equation x² - 4x + y2 = -3 intersect the x-axis?
a. yes, because the center is on the x-axis.
b. no, because the center is at (2,0) and the radius is 1
c. no, because the circle is entirely in the first quadrant.
d. yes, because the center is at (-2,0) and the radius is 3.
Answer: a. yes, because the center is on the x-axis.
========================================================
Explanation:
The x intercepts always occur when y = 0.
Replace y with 0 and solve for x
x^2-4x+y^2 = -3
x^2-4x+0^2 = -3
x^2-4x+0 = -3
x^2-4x = -3
x^2-4x+3 = 0
(x-3)(x-1) = 0
x-3 = 0 or x-1 = 0
x = 3 or x = 1
This shows that the x intercepts are located at (3,0) and (1,0). Refer to the diagram below. The diagram shows that the roots are at points A and B. The center is the midpoint of A and B. The center is also on the x axis.
-----------------
Here's another approach:
The general template of a circle is (x-h)^2 + (y-k)^2 = r^2
Let's complete the square of the original given equation to get it into that template form above.
x^2 - 4x + y^2 = -3
(x^2-4x) + y^2 = -3
(x^2-4x+4) + y^2 = -3+4 ... add 4 to both sides
(x-2)^2 + y^2 = 1
(x-2)^2 + (y-0)^2 = 1^2
The equation is now in the template form mentioned earlier. The center is at (h,k) = (2,0) which is on the x axis.
please help me!!!!!!
Answer:
B
Step-by-step explanation:
Answer:
5tan25°
Step-by-step explanation:
Using the tangent ratio in the right triangle
tan25° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{CA}{5}[/tex] ( multiply both sides by 5 )
5tan25° = CA
Which angle is NOT coterminal with 5pi/4
radians?
Answer:
im in ur math class dawg lol
Step-by-step explanation:
Solve for x
-2(x+3) < 10
Answer:
x < -8
Step-by-step explanation:
-2(x+3) < 10
-2x -6 < 10
-2x < 10 + 6
-2x < 16
x < 16/-2
x < -8
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
MATH HELP PLEASE HELP
Answer:
75 cm
Step-by-step explanation:
150÷2 = 75
Good luck with your exam :)
Answer:
75
Step-by-step explanation:
Essentially this question for the radius as it ask for the distance from the middle of the pit to the outside of the pit.
We are given the diameter (150) which is a straight line through the middle from one end to the other
To find the radius given the diameter you simply divide by 2
So answer = 150/2 = 75
Please help what’s the answer ??!
Answer:
50-(5+18)
=50-23
=27
3x=27
x=9
Answer:
x = 9
Add 5 and 18, and you will get 23. Then add 9 and 23 three times.
5 + 18 = 23
23 + 9 + 9 + 9 = 50
5(1 + 4m) – 2m = -13
Answer and Step-by-step explanation:
Solve for m.
First, distribute the 5.
5 + 20m - 2m = -13
Combine like terms.
5 + 18m = -13
Subtract 5 from both sides of the equation.
18m = -18
Divide by 18 to both sides of the equation.
m = -1 <- This is the answer.
#teamtrees #PAW (Plant And Water)
[tex]\longrightarrow{\green{ \: m = - 1 }}[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}[/tex]
[tex]5 \: (1 + 4m) - 2m = - 13[/tex]
➼ [tex] \: 5 + 20m - 2m \: = \: - 13[/tex]
➼ [tex] \: 18m = - 13 - 5[/tex]
➼ [tex] \: 18m = - 18[/tex]
➼ [tex] \: m = \frac{ - 18}{18} [/tex]
➼ [tex] \: m = - 1[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\blue{To\:verify}}{\blue{:}}}}}[/tex]
[tex]5 \: (1 + 4 \times - 1) - 2 \times - 1 = - 13[/tex]
➼ [tex] \: 5 \: (1 - 4) + 2 = - 13[/tex]
➼ [tex] \: 5 \times ( - 3) + 2 = - 13[/tex]
➼ [tex] \: - 15 + 2 = - 13[/tex]
➼ [tex] \: - 13 = - 13[/tex]
➼ [tex] \: L.H.S.=R. H. S[/tex]
Hence verified.
[tex]\bold{ \green{ \star{ \orange{Mystique35}}}}⋆[/tex]
Please give real answers with explaination. I will follow + I will give brainliest. No Docs/No Files/No Links only answer with explaination.
Answer:
True.
Step-by-step explanation:
This is true with any quadrilateral.
So, in a quadrilateral ABCD,
The pairs of opposite sides is parallel and equal.
For instance:
A = 1, 1
B = 2, 2
C = 3, 3
D = 4, 4
The midpoint of AB is (1+2)/2, (1+2)/2
The midpoint of CD is (3+4)/2, (3+4)/2
And so on and so forth, therefore the midpoints of the two opposite sides bisect the area of the rectangle.
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 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
Solve for x and show work
Answer:
6.14 rounded to the nearest hundreth.
Every paralelogram equals 360º. And every oppisite angle is eqaul to each other. So by doing the math we can tell the smaller angles is 80º. Now we solve for x.
80=7x+37 minus 37 from both sides
43=7x. then divide both side by 7 to cancel it out
6.14=x that is the answer rounded
You can check by inputing x's vaule into the equation and getting the angle measurment we solved for which is 80º.
7(6.14)+37
by doing this you get 80, the measure of the angle so the vaule for x is 6.14 rounded to the nearest hundreth.
The sum of 9 and y is less than or equal to 16.
Answer:
[tex]9+y[/tex] ≤ [tex]16[/tex]
Step-by-step explanation:
The sum of [tex]9[/tex] and [tex]y[/tex] which is [tex]9+y[/tex] is less than or equal to 16, which is ≤ [tex]16[/tex]
Hope this is helpful.
Determine the equation of a line in slope, y-intercept form, that has a slope of -2/5 and passes through the point (-5,7)
Answer:
y = -2/5x + 5
Step-by-step explanation:
y = -2/5x + b
7 = -2/5(-5) + b
7 = 2 + b
5 = b
helppppppppppppp. a and b partttt
Answer:
a) 220.17 cm
b) 2127.12 cm²
Step-by-step explanation:
perimeter = circumference
it is the sum of the inner and the outer arc and the 2 side lines of 25.
we know a full circle has 360 degrees. but we only look at a segment of a circle of 150 out of the total of 360 degrees.
the circumference of a circle is
C = 2×pi×r
the 150 degree part is then
C = 2×pi×r×150/360 = 2×pi×r×15/36 = pi×r×15/18 =
= pi×r×5/6
the radius of the inner circle is 20.
=>
Ci = pi×20×5/6 = pi×50/3
the radius of the outer circle is 20 + 25 = 45
Co = pi×45×5/6 = pi×75/2
so, the total perimeter/ circumference is
C = Ci + Co + 25 + 25 = pi×50/3 + pi×75/2 + 50
= pi×100/6 + pi×225/6 + 50 = pi×325/6 + 50 =
= 220.17 cm
the area of the shaded shape is the area of the large circle segment minus the area of the small circle segment.
the area of a circle is
A = pi×r²
the 150 degree part is then
A = pi×r²×150/360 = pi×r²×5/12
so, for the inner circle that is
Ai = pi×20²×5/12 = pi×400×5/12 = pi×100×5/3 = pi×500/3
for the outer circle that is
Ao = pi×45²×5/12 = pi×2025×5/12 = pi×10125/12 =
= pi×3375/4
so, the total area of the shaded shape is
A = Ao - Ai = pi×3375/4 - pi×500/3 = pi×(10125-2000)/12 =
= pi×8125/12 = 2127.12 cm²
Factorize x²+7x+10. Show working please
Answer:
(x + 2)(x + 5)
Step-by-step explanation:
Given
x² + 7x + 10
Consider the factors of the constant term (+ 10) which sum to give the coefficient of the x- term (+ 7)
The factors are + 2 and + 5 , since
5 × 2 = + 10 and 2 + 5 = + 7 , then
x² + 7x + 10 = (x + 2)(x + 5) ← in factored form
8) what is the side ratio
9) what is the perimeter RST
PLEASE ITS AN EMERGENCY
Answer:
c
24
Step-by-step explanation:
A scale drawing is a reduced form in terms of dimensions of an original image / building / object
the scale drawing is usually reduced at a constant dimension
scale of the drawing = original dimensions / dimensions of the scale drawing
/LM/ is similar to /SR/
scale = 9 / 6 = 1.5 = 3/2
length of /ST/ = 12 / 1.5 = 8
Length of /TR/ = 15 / 1.5 = 10
Perimeter = sum of sides
8 + 10 + 6 = 24