Answer:
Cork: Less
Wood: About the same
Metal: More dense
Step-by-step explanation:
Whether or not a block floats inside water is dependent on its density. If it is floating, it means it has a lower density. If it is sinking, it means it has a higher density. If it has the same, it will be half under and half over.
Mathematically, specific gravity can be used to support this phenomenon.
\(RD = \frac{p_{substance} }{p_{reference} }\)
*In this context, water is our reference and the blocks are our substances.
Since Boyancy force can be described \(W = p_{substance}gV_{reference}\) (the weight of the fluid disperced), having a higher density p than the reference liquid inherently will cause a greater downwards force from gravity.
when x equal 8 to the x^6-64x^4+x^2-7x-51
The expression (x - 8) is not the factor of the polynomial x⁶ - 64x⁴ + x² - 7x - 51.
What is factorization?It is a method for dividing a polynomial into pieces that will be multiplied together. At this moment, the polynomial's value will be zero.
The polynomial is given below.
⇒ x⁶ - 64x⁴ + x² - 7x - 51
If the value of the polynomial is zero at x = 8. Then (x - 8) will be the factor of the polynomial.
At x = 8, the value of the polynomial is given as,
⇒ (8)⁶ - 64(8)⁴ + (8)² - 7(8) - 51
⇒ 262,144 - 262,141 + 64 - 56 - 51
⇒ - 43
The expression (x - 8) is not the factor of the polynomial x⁶ - 64x⁴ + x² - 7x - 51.
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What is the equation of the line shown in the graph?
Answer:
y = -x – 2
Step-by-step explanation:
Slope is ΔY/ΔX = -1
plug this into the equation:
1=-(-3) +b
= -2=b
so we get; y = -x – 2
Answer: y = -x - 2
Step-by-step explanation:
I will be writing this equation in slope-intercept form.
First, we will find our m value, also known as the slope.
\(\displaystyle \frac{\text{change in y}}{\text{change in x}} =\frac{1--4}{-3-2} =\frac{5}{-5}=-1\)
Now, we will find our b value, or the y-intercept.
-> The line intercepts the y-axis at (0, -2), so our y-intercept is -2.
Lastly, we will write our equation.
y = mx + b
y = -x - 2
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Solve for x:
A. x = 1
B. x = 30
C. x = 0
D. x = 10
Answer:
A, C
Step-by-step explanation:
Chow,...!
HELP PLEASE
Find the value of y. Round to
the nearest tenth.
у
42°
85°
31
Answer: Therefore, the y value rounded to the nearest tenth is 47.9.
Step-by-step explanation:
To find the value of y, you can use the trigonometric function tangent (tan). First, find the angle between the y-side and the hypotenuse by subtracting the given grades from 180°:
180° - 42° - 85° = 53°
Then, use this angle and the opposite side (31) to solve for y:
tan(53°) = y/31
y = 31 * tan(53°)
y ≈ 47.9
Therefore, the value of y rounded to the nearest tenth is 47.9.
Whats something a fake weeb would say.
Answer:
My favorite character is Naruto from dragon x ball
Step-by-step explanation:
Good enough XD
Answer:
my favorite chararcter is NaRuTo UcHiHa
Step-by-step explanation:
172 students went on a field trip. seven buses were filled and 25 students traveled in cars. how many students were in each bus? i need an equation with the steps
The number of students in each bus is 21
Given data
Total number of students on the trip = 172
25 students traveled in cars
7 buses were filled
let the number students on each bus be x
number of students on the bus is gotten by
172 - 25 = 147
so 147 students travelled by bus and the total number of buses is 7.
to get the number of students in each bus we solve as follows
147 / 7 = 21
Hence each bus contains 21 students.
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what is the solution to the inequality below. x(absolute value) <5
Answer:
-5 < x < 5
Step-by-step explanation:
|x| < 5
This can be split into two cases: x < 5 and -x < 5 because |x| could be either x or -x depending on whether x is positive, negative, or 0. Solving the second one we get x > -5 so the answer is -5 < x < 5.
Dr. Brown is conducting a study in which participants have been randomly assigned to either the treatment condition or a comparison treatment condition and they measured the participants' symptoms before treatment, during treatment, and now 3-months post-treatment. Which type of research design did Dr. Brown use
Dr. Brown used a randomized controlled trial (RCT) research design.
A randomized controlled trial (RCT) is a type of scientific experiment in which two or more groups of patients are subjected to various clinical treatments, interventions, or exposures. In an RCT, subjects are randomly allocated to either a treatment group or a control group, and the treatment group receives the new intervention being tested, while the control group receives the standard intervention or placebo.
Therefore, Dr. Brown used a randomized controlled trial (RCT) research design in which participants were randomly assigned to either the treatment condition or a comparison treatment condition, and their symptoms were measured before treatment, during treatment, and now 3-months post-treatment.
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find a power series representation for the function f(x)=xsin(4x)
The power series representation for the function f(x) = x sin(4x) can be found as follows:
Firstly, we can find the power series representation of sin(4x) using the formula for the sine function:$
$\sin x = \sum_{n=0}^{\infty} \frac{(-1)^n}{(2n+1)!}x^{2n+1}$$
Substitute 4x for x to obtain:$$\sin 4x
= \sum_{n=0}^{\infty} \frac{(-1)^n}{(2n+1)!}(4x)^{2n+1}
= \sum_{n=0}^{\infty} \frac{(-1)^n}{(2n+1)!}4^{2n+1}x^{2n+1}$$
Multiplying this power series by x gives:
$$x\sin 4x
= \sum_{n=0}^{\infty} \frac{(-1)^n}{(2n+1)!}4^{2n+1}x^{2n+2}$$
Therefore, the power series representation for the function
f(x) = x sin(4x) is:$$f(x)
= x\sin 4x
= \sum_{n=0}^{\infty} \frac{(-1)^n}{(2n+1)!}4^{2n+1}x^{2n+2}$$
Therefore, the power series representation for the function f(x) = x sin(4x) is:$$f(x) = x\sin 4x = \sum_{n=0}^{\infty} \frac{(-1)^n}{(2n+1)!}4^{2n+1}x^{2n+2}$$
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the base of a triangle is 13cm and its height is 5cm. what is the area of the triangle
Answer:
32.5cm
Step-by-step explanation:
Using the formula A=h_b*b/2
We get 5*13/2=32.5
the mean monthly electric bill for 71 residents of the local apartment complex is $62. what is the best point estimate for the mean monthly electric bill for all residents of the local apartment complex?
If the mean monthly electric bill for 71 residents of the local apartment is $62 , then the best point estimate is $62 .
In the question ,
it is given that ,
the number of residents in the local apartment complex is = 71
the mean electric bill for the 71 residents = $62 ;
we know that the sample mean is itself called as the best point estimate ;
So , best point estimate for mean monthly electric bill for all residents of local apartment complex will be = mean monthly bill for 71 residents of local apartment complex which is given as $62 .
Therefore , the best point estimate is $62 .
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A $60 shirt is on sale for 30% off. How much is the shirt's sale price?
Answer:39?
Step-by-step explanation:
Is this right? I need help pls, I'm failing
Answer:
its right
Step-by-step explanation:
you are insine or what ever you know what i mine alright im not smart or dum
If $y>0$, find the range of all possible values of $y$ such that $\lceil{y}\rceil\cdot\lfloor{y}\rfloor
Range is R={n^2: n is natural number} U {n(n+1) : n is natural number}
The expression ⌈y⌉⋅⌊y⌋ represents the product of the ceiling and floor functions of y.
To find the range of all possible values of y, we need to consider the possible values of the ceiling and floor functions individually.
1. Ceiling function (⌈y⌉): This function rounds y up to the nearest integer. Since y is greater than 0, the ceiling of y will always be greater than or equal to y.
2. Floor function (⌊y⌋): This function rounds y down to the nearest integer. Again, since y is greater than 0, the floor of y will always be less than or equal to y.
Now, let's consider the product of the ceiling and floor functions, ⌈y⌉⋅⌊y⌋.
The product ⌈y⌉⋅⌊y⌋ will always be greater than or equal to 0 since y > 0 and this can take only integral values.
Therefore, the range of all possible values of y such that ⌈y⌉⋅⌊y⌋ is the set R={n^2: n is natural number} U {n(n+1): n is natural number}
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You and your friend race from point A to point C. You run from A to B and then from B to C. Your friend runs from A to D and then from D to C. You run at an average rate of 7.8 miles per hour and your friend runs at an average rate of 8.1 miles per hour. Is it possible to determine who wins the race?
Answer:
Friend winsStep-by-step explanation:
As per diagram, the distance AB + BC is same as AD + DC
Since the distance is same for both, the friend will win due to running at greater speed
Miguel is driving on a highway. He uses one gallon of gas every 50 miles he drives. The distance, D (in miles), he travels on g gallons of gas
is given by the following
How far does Miguel drive he uses 4 gallons of gas
which proportion could be used to express 18/20 as a percent
Answer:
so 20*5=100 and a percent is out of 100
so we just multiply 18*5 which equals
90 so 18/20=90%
we could also figure this out because if we simplify we get
9/10 which is also 90%
Hope This Helps!!!
In APQR, ZQ = ZP, RP = 13 and PQ = 19. Find the length of QR.
Answer:
13
Step-by-step explanation:
∠Q ≅ ∠ P ⇒ RP = RQ = 13
Can someone explain how to find the area of a triangle
The area of each triangle is one-half the area of the rectangle. So, the area A of a triangle is given by the formula A=12bh where b is the base and h is the height of the triangle.
Answer:
12.5 units²
Step-by-step explanation:
The area (A) of a triangle is calculated as
A = \(\frac{1}{2}\) bh ( b is the base and h the perpendicular height )
Here b = 5 and h = 5 , thus
A = 0.5 × 5 × 5 = 0.5 × 25 = 12.5 units²
Write the equation of this line in point-slope form using the point (1,-3) .
a. y + 1 = (-1/2)(x + 3)
b. y + 1 = (1/2)(x + 3)
c. y + 3 = (1/2)(x - 1)
d. y - 3 = (-1/2)(x - 1)
Answer:
c. y + 3 = (1/2)(x - 1)
Step-by-step explanation:
Answer:
A. \(y + 1 = (-\frac{1}{2})(x + 3)\)
Step-by-step explanation:
I used a graphing calculator. I prefer Desmos, but you can use whatever you like. I recommend Desmos or GeoGebra.
Please mark as Brainliest!!!Solve 3x − 2 = 3^7
options: 2,5,7,9
The value of x for the given expression is found as 2189/3.
Define the term power of the number?Base number is indeed the factor that is multiplied by itself, and exponent is the how many times its same base number has been multiplied. Power is defined as a base number elevated to the exponent.Exponents and indices are other names for powers. For instance, 8² may also be referred to as "8 to the power 2," "8 to the second power," or just "8 squared."The stated expression is-
3x − 2 = 3^7
Obtain the value of 3^7 by solving its power.
3x − 2 = 2187
(3x − 2) + 2 = 2187 + 2
3x − 2 + 2 = 2189
3x = 2189
3x / 3 = 2189 / 3
x = 2189/3
Thus, the value of x for the given expression is found as 2189/3.
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The correct question is-
Solve 3x − 2 = 3^7 and find the value of x.
please help me i'm stuck
Answer:
5184
Step-by-step explanation:
a rectangular horse pasture is bounded on one side by a stone wall and on the other three sides by a single wire strand of electric fence. using 400 feet of wire, what is the largest area, in square feet, that can be enclosed?
The rectangular horse pasture's largest area, in square feet, can be enclosed in \(80000m^{2}\)
Let the sides of the rectangle-shaped fence be a and b.
We have to use wire for the three sides of the fence.
\(a+b*2=800\)
Area A is given by
\(A=a*b\)
Also, we can write A as a function of b
\(A=A(b)\\=(800-2*b)b=800b-2b^{2}\)
Taking the derivative of A
\(A'=800-4b\\A'=0\\b=200m\)
Then the length of the other side
\(a=800-2*200\\=400m\)
The largest area
\(A=400*200\\=80000m^{2}\)
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HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
A. Skewed Right
B. Uniform
C. Skewed Left
D. Normal
Skewed Right I think. I'm not sure but try it
Answer:
C. Skewed Left
Step-by-step explanation:
Because the first 2 age group have minimal runners than the next 3 age groups spikes and the last 4 are very low once again. the spike occurs relavity near the beggining so if graphed it would be skewed left.
HELP ASAP
A picture is 7 inches wide and 9 inches long. A photographer enlarges it so it is 31.5 inches wide and 40.5 inches long. What scale factor was used to enlarge the picture?
9/7
7/9
31.5/7
7/31.5
The Scale factor was used to enlarge the picture is 7/ 31.5.
What is Scale factor?A scale factor is a numerical value that can be used to alter the size of any geometric figure or object in relation to its original size. It is used to find the missing length, area, or volume of an enlarged or reduced figure as well as to draw the enlarged or reduced shape of any given figure. It should be remembered that the scale factor only affects how big a figure is, not how it looks.
Given:
A picture is 7 inches wide and 9 inches long.
A photographer enlarges it so it is 31.5 inches wide and 40.5 inches long.
So, scale factor is
= Original dimension / Enlarged dimension
= 9/ 40.5
= 90/ 405
= 10/45
= 2/9
Now, simplifying the scale factor 7/31.5 because it has Nr < Dr.
= 7/ 3.15
= 70/31.5
= 2/9
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Determine the annual percentage yield, or the effective interest rate, for $1200 invested at 6.63% over 8 years compounded daily. Round your answer to the nearest hundredth of a percent, if necessary. Answer
The annual percentage yield, or the effective interest rate, for $1200 invested at 6.63% over 8 years compounded daily is approximately 64.04%.
To determine the annual percentage yield, or the effective interest rate, for $1200 invested at 6.63% over 8 years compounded daily, we can use the formula:
A = P(1 + r/n)^(nt)
Where:
A = the final amount
P = the principal amount (initial investment)
r = the annual interest rate (6.63%)
n = the number of times interest is compounded per year (365 for daily compounding)
t = the number of years (8)
Plugging in the values, we have:
A = 1200(1 + 0.0663/365)^(365*8)
Calculating this, we get A ≈ $1,968.49.
To find the annual percentage yield, we need to find the interest earned:
Interest = A - P = $1,968.49 - $1200 = $768.49
Now, we can find the annual percentage yield using the formula:
Annual percentage yield = (Interest / P) * 100
Plugging in the values, we have:
Annual percentage yield ≈ ($768.49 / $1200) * 100 ≈ 64.04%
Therefore, the annual percentage yield, or the effective interest rate, for $1200 invested at 6.63% over 8 years compounded daily is approximately 64.04%.
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Question at position 20
Find the point P that is 2/5 of the way from A to B on the directed line segment AB if A (-8, -2) and B (6, 19).
The coordinates of point P, which is 2/5 of the way from A to B on the directed line segment AB, are approximately (-12/5, 32/5).
To find the point P that is 2/5 of the way from A to B on the directed line segment AB, we can use the following formula:
P = A + (2/5) * (B - A)
Given:
A = (-8, -2)
B = (6, 19)
Let's calculate the coordinates of point P:
P = (-8, -2) + (2/5) * ((6, 19) - (-8, -2))
P = (-8, -2) + (2/5) * (14, 21)
P = (-8, -2) + (28/5, 42/5)
P = (-8 + 28/5, -2 + 42/5)
P = (-40/5 + 28/5, -10/5 + 42/5)
P = (-12/5, 32/5)
Therefore, the coordinates of point P, which is 2/5 of the way from A to B on the directed line segment AB, are approximately (-12/5, 32/5).
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Hello everyone, could someone help me with this problem
Question Progress
Homework Progress
39/61 Marks
I think of a number, double it, and subtract two. I get nine.
a)
b)
Using the statement above, form an equation.
Use the letter 'x' for the unknown number.
Solve the equation.
+
V
The given equation is 2x-2 = 9, x = 5.5.
What is straight line?An unending, one-dimensional figure with no width is a straight line. It consists of an infinite number of points connected on either side of a point. There is no curvature in a straight line. It might be angled, vertical, or horizontal. Any angle we draw between any two locations along a straight line will always be a 180-degree angle.
what is variable?A variable is a quantity that could change depending on the circumstances of an experiment or mathematical problem. Typically, a variable is denoted by a single letter. The general symbols for variables most frequently used are the letters x, y, and z.
A linear equation is an equation of a straight line, written in one variable.
(a).The desired equation is, 2x-2 = 9
(b). After solving, We get x = 5.5
(a). Let us consider, number is x
According to given statements,
First double it, 2x
Now, subtract 2, We get 2x - 2
Since, this is equal to 9.
So that,2x-2=9 is the desired equation.
(b) Now, we have to solve above equation.
2x-2=9
x=11/2
x=5.5
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What is the volume of the rectangular prism? Show your work or justify your solution
Answer: you mean, It takes 154 cubes with side lengths of 1/2 inch to fill a rectangular prism. What is the volume of the rectangular prism? Show your work or justify your
solution?
Answer: The volume of the rectangular prism is 19.25 inches³.
Step-by-step explanation: Hope this help :D