Answer:
y = 3x +8
Step-by-step explanation:
The slope of the given line is -1/3. The slope of a perpendicular line is the opposite of the reciprocal of that: -1/(-1/3) = 3.
Then, in point-slope form, the equation of the line is ...
... y - k = m(x - h) . . . . . for slope m through point (h, k)
... y - 5 = 3(x -(-1)) . . . . . for line of slope 3 through (-1, 5)
... y = 3x +8 . . . . . . . . . simplify
Which rectangular prism has the greatest volume?
Answer: First prism has the greatest volume.
Step-by-step explanation:
Since we have given that
Volume of prism = Length × Breadth × Height
So, we need to find the greatest volume, for which we find volumes of all figures:
1) Volume of prism would be
[tex]5\times 7\times 5\\\\=175\ cm^3[/tex]
2) Volume of prism would be
[tex]10\times 3\times 4\\\\=120\ cm^3[/tex]
3) volume of prism would be
[tex]7\times 7\times 3\\\\=147\ cm^3[/tex]
4) Volume of prism would be
[tex]5\times 3\times 7\\\\=105\ cm^3[/tex]
Hence, first prism has the greatest volume.
The volume of the prism with the Greatest volume is 250cm³
The volume of a prism is calculated by multiplying the prism's base area by its height. Mathematically expressed as
V = Base Area×Height
, it represents the space enclosed within the prism.
Since the prism is a cuboid, then
V = l × w × h
Where h is the height , l is the length and w is the width.
V = 5 × 5 × 10
V = 250 cm³
The volume of the prism is 250cm³
what is the recursive formula for the geometric sequence with this explicit formula
an=9*(-1/3)^(n-1)
Answer:
a_0 = -27
a_n = a_(n-1) * (-1/3)
Step-by-step explanation:
First evaluate given formula at n=0 and specify that as starting value
Then find how to get from n-1 to n by comparing two values. In this case the next value is formed by multiplying by -1/3.
Answer:
[tex]a_n = a_{n-1} \cdot (-\frac{1}{3})[/tex]
Step-by-step explanation:
The explicit formula for the geometric sequence is given by:
[tex]a_n = a_1 \cdot r^{n-1}[/tex]
where,
[tex]a_1[/tex] is the first term
r is the common ratio to the following terms.
As per the statement:
Given the explicit formula for geometric sequence:
[tex]a_n = 9 \cdot (\frac{-1}{3})^{n-1}[/tex]
On comparing with [1] we have;
[tex]a_1 = 9[/tex] and [tex]r = -\frac{1}{3}[/tex]
The recursive formula for geometric sequence is given by:
[tex]a_n = a_{n-1} \cdot r[/tex]
Substitute the given values we have;
[tex]a_n = a_{n-1} \cdot (-\frac{1}{3})[/tex]
Therefore, the recursive formula for the geometric sequence is, [tex]a_n = a_{n-1} \cdot (-\frac{1}{3})[/tex]
please help just looking for the answer
For this case, we have that by definition:
Let "x" be an angle of any vertex of a right triangle.
[tex]Sin (x) = \frac {Cathet \ opposite} {hypotenuse}[/tex]
So, if we want to find the sine of angle A:
[tex]Sin (A) = \frac {3} {5}[/tex]
Thus, the sine of angle "A" is[tex]\frac {3} {5}[/tex]
Answer:
[tex]\frac {3} {5}[/tex]
Option A
Use the Line Tool to graph the equation. 4x−6y=48 on a graph.
See attached.
Step-by-step explanation:When graphing equations presented in standard form, it is often convenient to convert them to intercept for. You do this by dividing by the constant on the right, and expressing the x- and y-coefficients as denominators:
... x/(x-intercept) + y/(y-intercept) = 1
Dividing your equation by 48, you get ...
... x/12 + y/(-8) = 1
That is, the intercepts of the line are (12, 0) and (0, -8). A line through these points will be the graph of the equation.
#2. Find the missing side. Round to the nearest tenth.
5.3
Step-by-step explanation:The mnemoic SOH CAH TOA reminds you that ...
... Tan = Opposite/Adjacent
... tan(24°) = x/12
Then multiplying by 12 gives ...
... 12·tan(24°) = x = 5.34274 ≈ 5.3
someone help pls need help on this one
Answer:
[tex]\dfrac{2}{3x^5y}[/tex]
Step-by-step explanation:
A negative exponent in the numerator is the same as a positive exponent in the denominator, and vice versa.
... a^-b = 1/a^b . . . . . for any value of b, positive or negative
The exponent of a product is the sum of the exponents:
... (a^b)(a^c) = a^(b+c)
___
Applying these rules, you have
... = 2/(3x^4·x·y) = 2/(3x^(4+1)·y) = 2/(3x^5·y)
A boat traveled 210 miles downstream and back. The trip downstream took 10 hours. The trip back took 70 hours. What is the speed of the boat in still water? What is the speed of the current?
The speed of the boat in still water is 12 mph, and the speed of the current is 9 mph.
Let's denote the speed of the boat in still water as ( b ) and the speed of the current as ( c ).
Downstream Trip:
The speed of the boat relative to the water is ( b + c ), and the distance is 210 miles.
Therefore, the time taken downstream is:
[tex]\[ \text{Time} = \frac{\text{Distance}}{\text{Speed}} = \frac{210}{b + c} \][/tex]
Given that this trip took 10 hours, we have:
[tex]\[ 10 = \frac{210}{b + c} \][/tex]
Upstream Trip:
The speed of the boat relative to the water is ( b - c ), and the distance is again 210 miles.
Therefore, the time taken upstream is:
[tex]\[ \text{Time} = \frac{\text{Distance}}{\text{Speed}} = \frac{210}{b - c} \][/tex]
Given that this trip took 70 hours, we have:
[tex]\[ 70 = \frac{210}{b - c} \][/tex]
Now, we have a system of two equations with two variables:
[tex]\[ 10 = \frac{210}{b + c} \][/tex]
[tex]\[ 70 = \frac{210}{b - c} \][/tex]
Solving this system of equations will give us the values of ( b ) and ( c ), which represent the speed of the boat in still water and the speed of the current, respectively. Let's solve it:
From the first equation:
[tex]\[ b + c = \frac{210}{10} = 21 \][/tex]
From the second equation:
[tex]\[ b - c = \frac{210}{70} = 3 \][/tex]
Adding the two equations:
(b + c) + (b - c) = 21 + 3
2b = 24
b = 12
Substituting ( b = 12 ) into ( b + c = 21 ):
12 + c = 21
c = 21 - 12
c = 9
So, the speed of the boat in still water is 12 mph, and the speed of the current is 9 mph.
someone help me pls.....
Answer:
[tex]\dfrac{-x+5}{6x^2-x-12}[/tex]
Step-by-step explanation:
The denominators are the same. You can add the numerators without any extra work.
[tex]=\dfrac{(4x+5)-(5x)}{6x^2-x-12}=\dfrac{-x+5}{6x^2-x-12}[/tex]
The denominator factors as (2x-3)(3x+4), so there are no factors that will cancel with the numerator.
((− 1/2 )y^4)^3·(–16y^2)
one half of y to the power of four to the power of three times sixteen y squared
Answer:
2y^14
Step-by-step explanation:
= (-1/2)^3 · (y^4)^3 · (-16) · y^2
= (-1/8)·(-16) · (y^(4·3) · y^2) . . . . . simplify some
= 2 · y^(12 +2) . . . . . simplify more
= 2y^14
Why is -0.45, 5/12, 0, 247 rational or an irrational number.
All are rational.
Step-by-step explanation:Any number you can write exactly and completely, or any repeating decimal is a rational number. Any number that can only be written exactly using a symbol, such as π or √2, is an irrational number. Something like √6.25 is rational, because it can be written exactly as 2.5, without the symbol.
The idea of "rational" means the number can be expressed as the ratio of two integers. Any integer can be expressed as the ratio of itself and 1.
All of your numbers can be expressed as the ratio of integers:
... -0.45 = -45/100 . . . . any terminating decimal can be expressed as a ratio of integers by making use of the place value multipliers
... 5/12 . . . . is the ratio of integers
... 0 = 0/1
... 247 = 247/1
The movie plex theater sold 1,456 tickets. 6 times as many regular tickets as discounted tickets? How many regular tickets were sold? All movies until 4:00 p.m require a discount ticket, and all movies after 4:00 p.m require a regular-price ticket.Each theater at the movieplex seats 98 people. What is the least number of showings the theater could have shown after 4:00 p.m last Saturday ? Explain how you found your answer
a) Out of each 7 tickets sold, 6 were regular tickets and 1 was a discount ticket. Thus the number of regular tickets sold was ...
... (6/7)×1456 = 1248 . . . regular tickets
b) At 98 seats per showing, it takes ...
... 1248 seats/(98 seats/showing) = 12.7347 showings
to accommodate all the ticket sold.
That is, the least number of showings there could have been is 13.
graph the function. please help asap
Answer:
See the attached
Step-by-step explanation:
A graph of almost any exponential function quickly goes off-scale. The attachment shows a short table of values.
Solve for x I the equation x^2+14x+17=-96
Answer:
x=-7+8ı ,-7-8ı
Step-by-step explanation:
Move all terms to one side
x²+14x+17+96=0
Simplify x²+14x+17+96 to x²+14x+113
x²+14x+113=0
Use the quadratic Formula
x= -14+16/2 , -14-16ı/2
Simplify Solutions
x=-7+8ı ,-7-8ı
Which expression is equivalent to 5a+20? A: 5(5a+4). B: 5(a+4). C: 5(a+20). D: 5(a+1)
Answer:
5(a+4)
Step-by-step explanation:
expression is equivalent to 5a+20
To get the equivalent expression we need to factor the given expression
5a+ 20
5a can be written as 5 * a
20 can be written as 5*2*2
WE can see that common factor is 5 for both 5a and 20
So GCF is 5
Now we factor out GCF 5
WE put 5 outside and write all the left of factors inside the parenthesis
5a +20
5 (a+2*2)
5(a+4)
Answer:
5(a+4)
Step-by-step explanation:
Find the measurement of one interior angle in each polygon. Round your answers to the nearest tenth if necessary.
Find the measure of one exterior angle in each polygon. Round your answer to the nearest tenth if necessary.
1–4: The interior angle of an n-sided regular polygon is (n-2)/n times 180°. For n ∈ {5, 6, 11, 4}, this is {3/5, 4/6, 9/11, 2/4} · 180°, or {108°, 120°, 147.3°, 90°}
5–8: The exterior angle of an n-sided regular polygon is 360°/n. For n ∈ {5, 9, 7, 4}, this is 360°/{5, 9, 7, 4}, or {72°, 40°, 51.4°, 90°}
I cannot solve this. I don't know how.
The notation f(x) means you have a function that has been given the name f, and it makes use of the variable x. The variable in the parentheses is called the "argument" of the function f.
(a) To find f(q), you put q everywhere x is in the function equation. This is called evaluating the function for an argument of "q". In the following, note that we have simply changed x to q. (It's really that simple.)
... f(q) = q² -2q +3
(b) As in the previous case, we replace x with (x+h) everywhere.
... f(x+h) = (x+h)² -2(x+h) +3
You can multiply it out, but there appears to be no need to do so for this part of the question.
(c) The intent here is that f(x+h) and f(x) will be replaced by their values and the whole thing simplified. This requires you expand the expression you see in part (b), subtract f(x), collect terms, and divide the whole thing by h. You have to make use of what you know about multiplying binomials.
We can do it in parts:
... f(x+h) = (x+h)² -2(x+h) +3
... = (x² +2xh +h²) + (-2x -2h) +3
Separating the h terms, this looks like ...
... = (x² -2x +3) + (2xh -2h +h²)
Now, we can finish the numerator part of the expression by subtracting f(x):
... f(x+h) -f(x) = (x² -2x +3) +(2xh -2h +h²) -(x² -2x +3)
You can see that the stuff in the first parentheses matches that in the last parentheses, so when we subtract the latter from the former, we get zero. We are left with only the terms containing h.
... f(x+h) -f(x) = 2xh -2h +h²
To finish up this problem, we need to divide this numerator value by the denominator h.
... (f(x+h) -f(x))/h = (2xh -2h +h²)/h
... = (2xh)/h -(2h)/h +h²/h
... = 2x -2 +h . . . . . this is the value of the expression
... (f(x+h) -f(x))/h = 2x -2 +h
What is the measure of ∠BCD? Enter your answer in the box. ° quadrilateral A B C D with side A B parallel to side D C and side A D paralell to side B C. angle B is 103 degrees.
Answer:
77°
Step-by-step explanation:
Angles B and C are adjacent angles of a parallelogram, so are supplementary.
... ∠C = 180° -∠B = 180° -103° = 77°
The measure of ∠BCD in a parallelogram with ∠B given as 103° is also 103° because opposite angles in a parallelogram are equal.
Explanation:The measure of ∠BCD in a parallelogram can be found by using the property that opposite angles in a parallelogram are equal.
To find the measure of angle BCD, we can use the fact that angles in a quadrilateral sum up to 360 degrees.
We know that angle B is 103 degrees.
Since quadrilateral ABCD has sides AB and DC parallel, as well as sides AD and BC parallel, it is a parallelogram.
Given that ∠B is 103°, the measure of ∠BCD is also 103° because it is the angle opposite ∠B.
What polynomial should be subtracted from the polynomial y2–5y+1 to get the difference equal to: 0
please show work
Answer:
y = 5 or y = 0
Step-by-step explanation:
Solve for y over the real numbers:
y^2 - 5 y = 0
Factor y from the left hand side:
y (y - 5) = 0
Split into two equations:
y - 5 = 0 or y = 0
Add 5 to both sides:
Answer: y = 5 or y = 0
Answer:
y^2-5y+1
Step-by-step explanation:
If you have y^2-5y+1 and you need to subtract something from it to get 0, try it in parts. y^2-y^2=0, -5y+5y=0, 1-1=0. Remember that you are subtracting, so the y^2, the 5y, and the -1 you got are not the actual answers. Since the - in the parenthesis changes the signs, you need the remember to change the signs on the numbers you subtracted from the original numbers. So you get y^2. -5y, and 1. Put them together in a equation, and that's your answer.
The coordinates of the vertices of a triangle are (1, 8) , (9, 8) , and (9, −2) . What are the coordinates of the circumcenter of the triangle? Enter your answer in the boxes.
Answer:
(5, 3)
Step-by-step explanation:
The given coordinates define a right triangle with (9, 8) as the vertex where the right angle is located. Then the other two coordinates define a diameter of the circumcircle. Its midpoint is the center.
... center = ((1, 8) +(9, -2))/2 = (5, 3)
The table below shows Britney's distance, in miles, from her destination after different time intervals in hours: Time (hours) (x) 2 4 1 3 6 5 7 Distance from destination (miles) (y) 1,000 880 1,060 940 760 820 690 What is the correlation coefficient for the data, and what does it represent? 0; it represents no correlation between x and y 0.999; it represents a linear positive correlation between x and y −0.999; it represents a linear negative correlation between x and y 0.999; it represents a linear negative correlation between x and y
Answer:
r = -0.9997
Step-by-step explanation:
A statistics calculator gives the value
r = -0.9997
You can see in the graph below that it represents an excellent negative correlation between x and y.
Every point appears to be exactly on the regression line .
It represents a linear positive correlation between x and y −0. 999.
Given
The table shows Britney's distance, in miles, from her destination after different time intervals in hours:
Time (hours) (x) 2 4 1 3 6 5 7
Distance from destination (miles) (y) 1,000 880 1,060 940 760 820 690
What is the correlation coefficient?A number between +1 and −1 is calculated so as to represent the linear interdependence of two variables or sets of data.
Then,
The correlation coefficient for the data, and what does it represent is;
It represents no correlation between x and y.
0.999; Represents a linear positive correlation between x and y.-0.999; represents a negative correlation between x and y.0.999; it represents a negative correlation between x and y.Hence, it represents a linear positive correlation between x and y −0. 999.
To know more about the correlation coefficient click the link given below.
brainly.com/question/12400903
What would be the answers for the three boxes please help
Look at the prime factorization. If all the factors have powers that are multiples of 6, then the number is a square and a cube. If they are multiples of 3, then a cube; if multiples of 2, then a square.
1000 = 2³·5³ . . . . a perfect cube
4 = 2² . . . . a perfect square
120 = 2³·3·5 . . . . none of the above (not a square or a cube)
36 = 2²·3² . . . . a perfect square
100 = 2²·5² . . . . a perfect square
49 = 7² . . . . a perfect square
125 = 5³ . . . . a perfect cube
25 = 5² . . . . a perfect square
create two similar, but not equal, right triangles using A (-5,-1) and b(4,3.5)
Answer:
The attachment shows ΔBAC ~ ΔBDA
Step-by-step explanation:
You want segment AB to be part of two similar, but not congruent, triangles. One way to do that is to make AB the hypotenuse of one triangle and the leg of another.
It is convenient to construct these triangles using point M as the arbitrary midpoint of the hypotenuse of the larger triangle. (We don't know the coordinates of M—we just know it is on the perpendicular bisector of AB.) BC is a diameter of circle M, and AD is the altitude of ΔABC.
find the value of x. please help.
Answer:
20.4
Step-by-step explanation:
The rule for secants is pretty simple. The product of the distance to one intersection with the circle and the distance to the other intersection with the circle is a constant. (This same rule applies when the secants intersect outside the circle.)
Here, that means ...
8 × 23 = 9 × x
x = 8·23/9 ≈ 20.4 . . . . . divide by 9
Will someone please help me with the 3 highlighted questions?
6. f(1)+g(2) = 4
8. g(4)-f(0) = 18
10. 2g(-4) = 22
Step-by-step explanation:Put the number where the variable is and do the arithmetic.
6.f(1) = 2·1 -5 = -3
g(2) = |-3·2-1| = |-7| = 7
f(1) + g(2) = -3 + 7 = 4
___
8.g(4) = |-3·4 -1| = |-13| = 13
f(0) = 2·0 -5 = -5
g(4) - f(0) = 13 -(-5) = 18
___
10.g(-4) = |-3·(-4)-1| = |11| = 11
2g(-4) = 2·11 = 22
In the figure, what is the area of the shaded region?
Answer:
30 units ^2
Step-by-step explanation:
To find the area of the shaded region, we find find the area of the large triangle and subtract the area of the unshaded triangle.
A of large triangle = 1/2 b*h
height = (6+3) = 9
The base is found by using the pythagorean theorem c^2 = a^2 + b^2
We need to find b^2
c^2 -a^2 = b^2
taking the square root on each side
sqrt(c^2 -a^2) = sqrt(b^2)
the base = sqrt(c^2 -a^2)
= sqrt( 15^2 - 9^2)
= sqrt(225-81)
= sqrt(144)
=12
Now that we know the base and the height, we can find the area
A of large triangle = 1/2 b*h
= 1/2 * 12 * 9
= 6*9 = 54
Using the rule of similar triangles
9 6
---- = ----------
12 base
We can use cross products to find the base of the smaller triangle
9* base = 12*6
9* base = 72
Divide by 9 on each side
base = 72/9 = 8
Now we can find the area of the smaller triangle
base = 8 and height = 6
A of smaller triangle = 1/2 b*h
= 1/2 *8 * 6
= 4*6 = 24
Area of the shaded region = Area large triangle - Area of small triangle
= 54-24
= 30
Solve the proportions using cross products. Round to the nearest hundredth is necessary. 21miles/49hours = 15miles h hours
[tex]\dfrac{21}{49}=\dfrac{21:7}{49:7}=\dfrac{3}{7}\\\\\dfrac{21}{49}=\dfrac{15}{h}\to\dfrac{3}{7}=\dfrac{15}{h}\qquad\text{cross multiply}\\\\3h=(7)(15)\\\\3h=105\qquad\text{divide both sides by 3}\\\\\boxed{h=35}\\\\Answer:\ 35\ hours[/tex]
The shortest side of an isosceles triangle is 4x−2 inches long. The two longer sides are 5 inches longer than the shortest side. The perimeter of the triangle is 64 inches.
What is the length of the longer sides of the triangle?
Answer:
23 inches
Step-by-step explanation:
If we add 5 inches to the shortest side, all sides will be the same length and the perimeter will be 69 inches. The longest sides have length that is 1/3 that, or ...
... (1/3)·(64 +5 in) = 23 in
_____
You can solve for x, but you obviously don't need to.
The perimeter is ...
... (4x -2) + 2(4x -2 +5) = 64
... 12x +4 = 64
... 12x = 60
... x = 5
... 4x -2 +5 = 4·5 +3 = 23 . . . . the length of the longest side in inches
A square has a length of 3/4m. Find the area.
Answer:
9/16
Step-by-step explanation:
Since the area of a square is s^2, then ther area of this square is (3/4)^2 is 9/16.
A technician is testing light bulbs to determine the number of defective bulbs. The technician records the table below to show the results. Result of Light Bulb Test Number of Bulbs Tested 14 28 84 336 Number of Defective Bulbs Found 1 2 6 ? The technician expects to find 24 defective bulbs when 336 are tested. Which statement explains whether the technician’s reasoning is correct, based on the information in the table? The reasoning is correct. The ratio of number of bulbs tested to defective bulbs is always 14 to 1. The reasoning is correct. The number of defective bulbs doubles, then triples, so the next number should be four times larger, regardless of the number of bulbs tested. The reasoning is not correct because the technician should have found the difference between 336 and 84, then divided the result by 6.
The reasoning is correct. The ratio of number of bulbs tested to defective bulbs is always 14 to 1.
Step-by-step explanation:We generally expect industrial processes to produce defects at about the same rate, meaning the proportion of defective product is generally considered to be a constant. Here, the proportion of defective bulbs is ...
... 1/14 = 2/28 = 6/84
so we expect it will be also 24/336. That is, the ratio of the number of bulbs tested to defective bulbs is expected to remain constant at about 14.
Answer:
A. The reasoning is correct. The ratio of number of bulbs tested to defective bulbs is always 14 to 1.
Step-by-step explanation:
Solve each system by substitution. Tell whether the system has one solution, infinitely many solutions, or no solution.
3x+6y=18
3y=-3/2x+9