By using first principle, the value of Dy/Dx is,
⇒ Dy/Dx = - 7 / x²
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
We have to given that;
The expression is,
⇒ y = 7 / x
Now, Differentiate the function with respect to x, we get;
⇒ y = 7 / x
⇒ Dy/ Dx = D / Dx (7 / x)
= 7 D/Dx (1/x)
= 7 (- 1 × x⁻¹⁻¹ )
= 7 (- x⁻²)
= - 7 / x²
⇒ Dy/Dx = - 7 / x²
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Find the area of the polygon with the given vertices. N(-2,1), P(3,1), Q(3,-1), R(-2,-1)
Answer:
10
Step-by-step explanation:
no explanation just math-way
The parallelogram shown below has an area of 15 units squared.
Answer:
Step-by-step explanation:
The area formula of a parallelogram is the same as the area formula of a rectangle, it is A=bh.
Given that area is 15 units, A = 15.
On the graph, we can see that base is 3 units. b = 3.
plug in the values into the formula,
[tex]15 = 3 * h\\h = 15 / 3 = 5[/tex]
50 POINTS. WILL MARK BRAINLIEST. Write a short paragraph describing the career and music of one of the following composers. Be as specific as possible. (5 pts.)
a. Hildegard von Bingen
b. Guillaume de Machaut
The Saint Hildegard of Bingen stood out in the Middle Ages for her great knowledge in different fields and her extensive written production.
Who was Hildegard von Bingen?Saint Hildegard of Bingen (1098-1179), was a German nun belonging to the Order of Saint Benedict who stood out for performing multiple functions, among which are:
ComposerWriterPhilosopherScientificAmong other.Hildegard stood out for being one of the most influential personalities of the Late Middle Ages due to her remarkable intelligence and culture that led her to be one of the most productive writers of her time and to develop varied knowledge of natural history.
Much of her work (including her musical compositions) is found in her best known work called "Wiesbanden Codex" or "Riesencodex".
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Suzy randomly picks marbles from a bag containing 13 identical marbles. How many possible outcomes are there if she selects 9 marbles
Suzy randomly picks marbles from a bag containing 13 identical marbles. The possible outcomes of the given probability if she selects 9 marbles is:
259,459,200.
What is random?Randomness is commonly used to refer to an event's apparent or actual lack of pattern or predictability. Random events, symbols, or steps frequently occur in no particular order and do not adhere to any recognizable pattern or combination.
Germanic in origin, Randon is a name for boys. With a name that means "wolf shield," you can inspire baby Randon to embrace their sense of adventure. something or someone that is suspiciously out of the ordinary, unidentified, or unknown. a peculiar or erratic individual or thing. Something that is random lacks structure, direction, or intent. Like the random selection of lottery numbers or unplanned random events, it occurs entirely by chance.
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HELP ME PLEASE . THESE ARE RATIONAL NUMBERS BTW.
Answer:
15. -3 1/4
16. -4 1/2 OR -4 2/4
17. 1 1/4
18. -5 3/4
19. 1/2 OR 2/4
20. -2 1/2 OR -2 2/4
Step-by-step explanation:
Answer:
15) -3.25
16) -4.5
17)1.25
18)-5.75
19).5
20)-2.5
Solve the following system of inequalities graphically on the set of axes below. State the coordinates of a point in the solution set. y < c - 1 y > x -4
The graph of the inequality system is attached. The coordinate of a point in the solution set is (-1, 2).
In order to graph the system of inequalities graphically, consider the equation of each inequality.
y = x – 1
y = x - 4
Choosing a few values of x, plot the graph for each equation. Shade the area bounded by the line based on the inequality. If the inequality is less than, shade the area right to the line and if the inequality is greater than, shade the area left to the line. Hence, y < x – 1 is represented by red area and y > x – 4 is represented by blue area. The overlapping shaded area contains the coordinates that represent the solution of the inequality system. The coordinate of a point in the solution set is (-1, 2).
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Enter your answer and show all the steps that you use to solve this problem in the space provided in the triangle there is a 72° c113° write a list of steps that are needed to find the measure of b
The steps for measuring the angle b is shown below, <b= 41.
What is Exterior angle Property?If a triangle side is created, the outside angle that results is equal to the sum of the two opposite internal angles.
If an equivalent angle is measured at each triangle vertex, the exterior angles always add up to 360 degrees.
Given:
exterior angle = 113
and, opposite interior angle =72
Using Exterior angle property we have
72 + b = 113
Subtract 72 from both side
72 + b -72 = 113 -72
b = 113- 72
b = 41
Hence, the measure of b is 41 degree.
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Jeremiah used 87 neon stars to make his wizard costume for Halloween. He used several of the stars on the hat. He used 2 more than 3 times as many stars on the cape as on the hat. How many stars are on Jeremiah's cape if he saved on star for the top of his wand?
Answer:
There were 65 stars on his cape.
Step-by-step explanation:
So, there are 87 neon stars in total, and we are using 1 star for his wand, so there are 86 stars left on his cape and hat. We'll label the hat as h.
The stars are 2 more then 3 times the stars on his cape, plus the stars on his hat, so the equation is:
4h+2=86
4h=84
h=21
21x3+2=65
Answer:
There were 65 stars on his cape.
Step-by-step explanation:
So, there are 87 neon stars in total, and we are using 1 star for his wand, so there are 86 stars left on his cape and hat. We'll label the hat as h.
The stars are 2 more then 3 times the stars on his cape, plus the stars on his hat, so the equation is:
4h+2=86
4h=84
h=21
21x3+2=65
You have 12 books and you want to put 8 on a shelf in your room. Order does not matter to you. How many ways can you put 8 books on the shelf?
a. 495 ways
b. 19,958,400 ways
Answer:
I took the Quiz and got 19,958,400 ways wrong from the previous answer the real answer is 496 ways
Step-by-step explanation:
The number of different ways that you can put 8 books on the shelf will be 495.
What are permutation and combination?A permutation is an act of arranging items or elements in the correct order. Combinations are a way of selecting items or pieces from a group of objects or sets when the order of the components is immaterial.
Then the combination is given as,
⇒ ⁿCₐ
Where n is total sample and a is the selected sample from n.
You have 12 books, and you want to put 8 on a shelf in your room.
Order does not matter to you.
Then the number of different ways that you can put 8 books on the shelf will be
⇒ ¹²C₈
⇒ 12! / [(12 – 8)! x 8!]
⇒ 12 x 11 x 10 x 9 x 8! / (4 x 3 x 2 x 1 x 8!)
⇒ 11 x 5 x 9
⇒ 495
Thus, the number of different ways that you can put 8 books on the shelf will be 495.
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A triangle has sides with lengths that are
consecutive even integers. The perimeter of the
triangle is 72 centimeters. Sketch the triangle
and label the lengths of the sides, using the
variable. Find the length of the largest side.
Show work
The largest side of the length is 26cm.
Now, According to the question:
Three consecutive even numbers can be expressed in terms of n. If n is an even number then,
(n -2), (n), (n + 2)
are three consecutive even numbers.
Therefore,
(n -2)+ (n)+ (n + 2) = 72cm.
We can simplify so...
3n + 2 - 2 = 72 cm.
3n + 0 = 72 cm.
3n = 72cm.
Divide both sides by 3 to solve for n
n = 24 cm.
24 is an even integer. Input 24 into the original equation.
(n -2)+ (n)+ (n + 2) = 72cm.
(24 - 2) + 24 + (24 + 2) = 72cm
22 + 24 + 26 = 72
72 = 72
Hence, The largest side of the length is 26cm.
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15mm out of 5cm?please explain
Answer:
15 mm have 1.5 cm.
Step-by-step explanation:
1 mm = 0.1 cm
1 cm = 10 mm
5 cm have 50 mm
and
15 mm have 1.5 cm.
Can you help me with this
Answer:
m = 2
Step-by-step explanation:
Slope = rise / run or (y2 - y1) / ( x2 - x1)
Let's pick 2 points (0,0) (1,2)
We see the y increase by 2 and the x increase by 1, so the slope is
m = 2
Freemont Run Club surveyed a random sample of 303030 of their members about their running habits. Of the members surveyed, 999 said that they run more than 555 days a week. There are 848484 Freemont Run Club members.
Based on the data, what is the most reasonable estimate for the number of Freemont Run Club members who run more than 555 days a week?
Answer:
the answer is 25 according to Khan
Step-by-step explanation:
Evaluate cos(θ) when θ=3π/2?
Answer:
0
Step-by-step explanation:
a) which group has lower mode.
b) what is this mode?
The easiest way to determine the mode of any data set, is to figure out which number appears most frequently, or most common.
You can take all of the numbers and count how many times each number appears. The number that appears the most is called the mode.
In the first pie chart (Group A), we can see that the orange piece is the biggest, therefore the most common. The orange piece has equal value to 4.
In the next group (Group B), we can determine the mode by looking at the highest bar, which would be 5.
4 is less than 5, which means that the answer to this question would be Group A.
Torrin rode his bike to school at 13. 5 km/h. He returned home using the same route at 10. 5 km/h. Torrin took a total of 36 min to ride to school and back. Express your answer to the nearest hundredth. A) how many minutes did torrin take to ride to school? B)how far is it from Torrins house to school?
To ride a bike to school Torrin takes 15.75 min to ride to school and 3.54 km is the distance from his house to school.
Let v₁ = 13.5 km/h the speed to school
v₂ = 10.5 km the speed returning home
t = the time of the ride to school in minutes
36 - t = the time of the ride from school in minutes
Since, distance = speed × time
⇒v₁ × t/60 = v₂ × (36 - t)/60
⇒13.5 × t/60 = 10.5 × (36 - t)/60
⇒t = 15.75 min
Now, the distance = v₁ × t/60 = 13.5 × 15.75/60 = 3.54 km.
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A rectangle has an area of 16x + 24. What could the length and width of the rectangle be
The length and width of the rectangle will be 2 and 8x + 12
Area of rectangle = 16x + 24.
A rectangle is a four-sided geometric shape having opposite sides that are equal in length and four right angles. The length and width of the rectangle are its opposing sides.
A rectangle's area is found by multiplying its length and width together, so:
Area = length x width
Calculating the length and width of the rectangle -
Factoring out 2 from the equation -
Therefore -
2 (8x+12)
Since, the area is the length times width, thus -
2 x (8x+12)
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The measures of two angles of a triangle are given below. Find the measure of the third angle of the triangle in decimal form.
28.5°, 104.25°
What is the value of X?
Answer:
X=9
Step-by-step explanation:
A circle adds up to 360°
63+89+73= 225
360-225= 135
Since 15x
135÷15=9
x=9
Maya is saving money to buy a game. So far she has saved $12 , which is three-fourths of the total cost of the game. How much does the game cost?
Answer:
$16
Step-by-step explanation:
12 = 3/4g
cross-multiply to get:
3g = 48
g = 48/3
g = 16
What is the smallest positive integer that is both a multiple of $7$ and a multiple of $4$?
The smallest positive integer that is both multiple of 4 and 7 is 2
What are multiples?In mathematics, multiples are the results of multiplying an integer by a given number.
The given numbers for this problem are 4 and 7. The positive multiples of 4 and 7 will be listed and the first number that appeared in the both multiples s the smallest positive integer that is both a multiple of 7 and a multiple of 4.
The multiples of 4
4 8 12 16 20 24 28 32 36 .......
The multiples of 7:
7 14 21 28 35 42 49 56 63 70 77 84 91 98 .....
The smallest common multiple is 28
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hi, can someone please help me
this is your proper answer
hii, how are you
Answer:
15
Step-by-step explanation:
Let the total number of beads be x[tex]\because\: \frac{3}{8}[/tex] of the beads are blue.& Total number of blue beads = 9[tex]\rightarrow\: \frac{3}{8}\times x= 9[/tex][tex]\rightarrow\: x= \cancel{9}\times\frac{8}{\cancel{3}}[/tex][tex]\rightarrow\: x=3\times 8[/tex][tex]\rightarrow\: x=24[/tex]Number of purple beads = 24 - 9 = 15Lucia le cuenta una noticia a 3 amigas a la hora 12. Cada una de ellas se le comunica a 3 personas en los siguientes 10 minutos. Si este procedimiento continua cuantas personas se han enterado de la noticia hasta las 12:30?
Answer:
81 personas
Step-by-step explanation:
Lucía les cuenta una historia a 3 amigos a la hora 12.
Cada uno de ellos se comunica a 3 personas en los próximos 10 minutos.
a) Primeros 10 minutos
1 amigo = 3 personas = 10 minutos
3 amigos = x
Multiplicar cruzada
x = 3 × 3 personas = 9 personas
Por lo tanto, 9 personas han escuchado la historia en 10 minutos.
Si este trámite continúa, ¿cuántas personas han escuchado la noticia hasta las 12:30?
12: 30 - 12:00 = 30 minutos más
10
Por eso,
b) Segundos 10 minutos = 20 minutos
9 personas cada uno le dice a 3 personas en otros 10 minutos
1 persona = 3 personas
9 personas = x
Multiplicar cruzada
x = 9 × 3 personas
x = 27 personas
c) Los últimos 10 minutos = 30 minutos
1 persona = 3 personas
27 personas = x
Multiplicar cruzada
x = 27 × 3 personas
x = 81 personas
Por lo tanto, a los 30 minutos, 81 personas habrían escuchado la noticia a las 12:30
Make
x
the subject of the formula
a = bx + c
Answer: x = a/b - c
Step-by-step explanation:
First divide by b on each side to get the x by itself.
Then subtract c from both sides to make x the subject of the formula.
Step-by-step explanation:
a = bx + c
the goal is to get to a form with "x = ...".
a - c = bx
(a - c)/b = x
done.
What is equivalent to 4 6?
The fraction which is equivalent to 4/6 is 8/12 as asked in the question.
2 x 4 = 8 and
3 x 4 = 12
Therefore, they satisfies the condition of an equivalent numbers.
Equivalent numbers are those which on reducing to it's lowest terms gives the same number.
Other example , 2/4 is equivalent number to 8/16 .
Equivalent fractions are those fractions which has different numerators and denominators but the same value when reduced to their lowest terms. For, example 2/4 and 3/6 are comparable fractions because they both equal 12.
A fraction is a portion of a number written in terms of numerator and denominator. Equivalent fractions represent the same percentage of the whole.
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Find the value of c that completes the square. Show your work.
First problem included as reference. Use (b/2)^2
Answer:
26. 16
27. 1
28. 49
29. 169
30. 256
Step-by-step explanation:
26. (b/2)² = (-8/2)² = 16
27. (b/2)² = (-2/2)² = 1
28. (b/2)² = (-14/2)² = 49
29. (b/2)² = (26/2)² = 169
30. (b/2)² = (-32/2)² = 256
help? very easy just volume
Answer:
1920 cubic centimeters
Step-by-step explanation:
FIGURE A:
8 * 10 * 14 = 1120
FIGURE B:
8 * 10 * 10 = 800
So 1120 + 800 = 1920 cubic centimeters!
dat da answer
can someone that knows about these problems help me ? i dont think i have the answer right
Answer:
The equation for the volume of a sphere is [tex]\frac{4}{3}\pi r^{2}[/tex]. Substitute the variables with the given numbers to get [tex]\frac{4}{3}\pi 9^2[/tex]. Simplify the equation to get 3053.63.
What do I put for question a, b, c and d?
Answer:
Step-by-step explanation:
a) (52 + 63)/250 = 0,46 = 46%
b) (63+77)/250 = 0,56 = 56%
c) 63/140= 0.45 = 45%
d) vegetarian that exercise: 52/110 = 47%
Compararison with not vegetarian:
63 : 140 = x : 110
50/110
So the answer is the first option
Customary System Units Metric System Units 1 gallon 3.79 liters 1 quart 0.95 liters 1 pint 0.473 liters 1 cup 0.237 liters Approximately how many centiliters are in 3 quarts
3 quarts is equal to approximately 285 centilitres.
To Calculate this we have:
3 quarts is equal to 3 x 0.95 liters = 2.85 liters.
1 litre is equal to 100 centilitres, so 2.85 litres is equal to 2.85 x 100 = 285 centilitres.
Therefore, 3 quarts is equal to approximately 285 centilitres.
In detail, a quart is a unit of measurement in the Customary System Units and is defined as a quarter of a gallon. 1 quart is equal to 0.95 litres. To find out how many centilitres are in 3 quarts, we need to multiply the number of quarts (3) by the conversion factor (0.95 litres per quart). This gives us 2.85 litres. Since 1 litre is equal to 100 centilitres, we can multiply 2.85 litres by 100 to get 285 centilitres. Therefore, 3 quarts is equal to approximately 285 centilitres.
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