Answer:
x = 3.2
Step-by-step explanation:
Divide 400 by 125 to get x.
Answer:
x = 31.25%Step-by-step explanation:
\(125 = x \: \: . \: \: 400 \\ \frac{125}{400} \times 100\% = x \\ 31.25\% = x\)
Will mark brainiest for CORRECT answer!
ANSWER: y = (1/2)x - 1.
To find the equation of the tangent line to the curve y = √(x - 3) at the point (4, 1), we need to determine the slope of the tangent line and its y-intercept.
First, let's find the derivative of the function y = √(x - 3) using the power rule:
dy/dx = 1/(2√(x - 3))
Now, we can substitute x = 4 into the derivative to find the slope of the tangent line at that point:
m = dy/dx = 1/(2√(4 - 3)) = 1/2
So, the slope of the tangent line is 1/2.
Next, we can use the point-slope form of a line to find the equation of the tangent line. Given the point (4, 1) and the slope m = 1/2, the equation becomes:
y - y1 = m(x - x1)
Substituting the values (x1, y1) = (4, 1):
y - 1 = (1/2)(x - 4)
Simplifying the equation:
y - 1 = (1/2)x - 2
y = (1/2)x - 1
Therefore, the equation of the tangent line to the curve y = √(x - 3) at the point (4, 1) is y = (1/2)x - 1.
Answer:
y = (1/2)x - 1/2
Step-by-step explanation:
Step 1: Find the derivative of the function
The derivative of a function gives the slope of the tangent line to the curve at any point. To find the derivative of the given function y = sqrt(x - 3), we can use the power rule of differentiation which states that:
d/dx (x^n) = nx^(n-1)
Applying this rule to our function, we get:
dy/dx = d/dx sqrt(x - 3)
To differentiate the square root function, we can use the chain rule of differentiation which states that:
d/dx f(g(x)) = f'(g(x)) * g'(x)
Applying this rule to our function, we have:
g(x) = x - 3
f(g) = sqrt(g)
So,
dy/dx = d/dx sqrt(x - 3) = f'(g(x)) * g'(x) = 1/(2*sqrt(g(x))) * 1
Substituting g(x) = x - 3, we get:
dy/dx = 1/(2*sqrt(x - 3))
So, the derivative of y with respect to x is 1/(2*sqrt(x - 3)).
Step 2: Evaluate the derivative at the given point
To find the slope of the tangent line at the point (4, 1), we need to substitute x = 4 into the derivative expression:
dy/dx = 1/(2*sqrt(4 - 3)) = 1/2
So, the slope of the tangent line at the point (4, 1) is 1/2.
Step 3: Use point-slope form to write the equation of the tangent line
Now that we know the slope of the tangent line at the point (4, 1), we can use point-slope form to write the equation of the tangent line. The point-slope form of a line is given by:
y - y1 = m(x - x1)
where (x1, y1) is the point on the line and m is the slope of the line.
Substituting the values x1 = 4, y1 = 1, and m = 1/2, we get:
y - 1 = (1/2)*(x - 4)
Simplifying this equation, we get:
y = (1/2)x - 1/2
So, the equation of the tangent line to the curve y = sqrt(x - 3) at the point (4, 1) is y = (1/2)x - 1/2.
Hope this helps!
The product of 9 and Jenny's age is 135
The product of 9 and Jenny's age 15 is 135.
What is a mathematical operation?Similar to the principle of superposition denotes a mathematical operation (e.g., differentiation, multiplication by a constant) in which the action on the sum of two functions is the sum of the action of the operation on each function.So, let the missing value be 'x'.
Then,
9 × x = 1359x = 135x = 135/9x = 15Therefore, the product of 9 and 15 is 135.
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Evaluate the following statement.
( - 179 – 78 ) + 41 - ( - 165 )
The answer is:
( - 179 – 78 ) + 41 - ( - 165 )
=-51
Answer:
(-257) +41+165
-257+206
-51
PLEASE HELP will give brainly and 10 points Which inequality is represented by the number line graph?
Answer: A
Step-by-step explanation: The dot is a filled-in circle, meaning it has to be A, B, or E. Then, B is saying that the arrow is going left, so that's wrong. E is saying that it is just 6 instead of -6, which leaves us with A.
hope this helps!
please give brainliest!
35) Find BC
B
31°
58°
А
33 km
C
Answer:
91°
Step-by-step explanation:
180° in a triangle; so
31+58=89
180-89=91
BC=91°
To evaluate whether customers enjoy the barista’s new smoothie, a restaurant manager surveys every other customer who orders the new smoothie. The manager determines that customers enjoy the new smoothie. Select all the statements that are true about the sampling method.
The sampling method used by the restaurant manager allows for efficient data collection and a representative sample, it may introduce bias and lacks randomization.
Based on the information provided, we can identify the following statements that are true about the sampling method used by the restaurant manager to evaluate customer satisfaction with the new smoothie:
1. The manager uses systematic sampling: The manager surveys every other customer who orders the new smoothie. This systematic approach involves selecting every second customer, providing a consistent and organized sampling method.
2. The sample is representative: By surveying every other customer who orders the new smoothie, the manager ensures that the sample includes a variety of customers, reflecting the customer population as a whole.
3. The sample size may be smaller than the total customer base: Since the manager surveys every other customer, the sample size may be smaller compared to surveying every customer. This allows for efficient data collection and analysis.
4.The sampling method may introduce bias: The manager may inadvertently introduce bias by only surveying every other customer. Customers who are skipped in the survey may have different preferences or opinions, leading to a potential bias in the results.
5. The sampling method lacks randomization: Randomization is not employed in this sampling method, as the manager systematically selects customers. This could potentially introduce bias or exclude certain types of customers from the sample.
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Does this appear to be a regular polygon? Explain.
No, it is not a regular polygon.
What is a convex hexagon?A hexagon is a six sided polygon. And a convex hexagon means, the hexagon's vertices are pointed outwards.
And no interior angle has an angle measure more than 180°.
Given:
A polygon.
To be a regular polygon:
Given Hexagon,
should have equal sides and equal angles.
We have no information about the angles and sides.
Therefore, it is not a regular polygon.
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Find the equation of the line with slope 25 and y-intercept (0,−2).
answer: Equation of line is : Y = mx +b
Y intercept is origin ( 0,0)
Therefore :
Y = 6/5 X
All lines passing through origin have equation:
Y = mX
Answer: y= 2x/5 -2
Step-by-step explanation:
y=mx+b
y=2/5x + (-2)
y=2x/5 -2
Consider the function:f(x) = -5x + 5Step 1 of 2: Find the value of f(-2).
Given:
\(f(x)=-5x+5\)\(f(-2)=-5(-2)+5\)\(f(-2)=10+5\)\(f(-2)=15\)\(f(5)=-5(5)+5\)\(f(5)=-25+5\)\(f(5)=-20\)Find the value of x that will make a and b parallel 5x+9 and 3x+11
Answer:
Step-by-step explanation:
5x + 9 = 3x + 11 ( Alternate angles )
5x - 3x = 11 - 9
2x = 2
x = 2/2
x = 1
Hope this helps
plz mark as brainliest!!!!!
Sam saved $50 from his summer job to buy video games. He bought 3 video
games and the cashier gave him $12.80 in change. If each game cost the same
amount, how much was each video game?
Answer:
$12.40
subtract 12.80 from 50 to get 37.20 then divide by 3
Help ASAP- I dont understand!!!
Is the relation below a function? If it is a function, state its domain.
{(0,2),(2,4),(1,7),(2,5)}
A. The relation is not a function.
B. The relation is a function. The domain is {0,1,2}
C. The relation is a function. The domain is {2,4,5,7}
D. The relation is a function. The domain is {0,1,2,4,5,7}
Answer:
A
Step-by-step explanation:
The relation is not a function. All you need to solve this problem is the following: Relations are NOT functions when the domain values repeat!
Note: The domain is the set of input values. The domain is x, the first number in the pair. For example, in the pair (0, 2), the domain is 0.
In the relation {(0,2),(2,4),(1,7),(2,5)}, 2 is repeated two times, which, by definition, means that the relation is not a function.
If AB has a midpoint of M(-5, 4), what are possible coordinates for points A and B? Explain your reasoning.
Answer: (-10,4) and (0,4)
Step-by-step explanation:
the endpoints need to be equidistant from the midpoint (-5,4).
(-10,4) is 5 spaces to the left
(0,4) is 5 spaces to the right
5=5 so equidistant
The diagram shows a square.
(6x - 1) cm
Find the length of the side of the square.
Your final answer must say, side = . . . cm
(4x + 6) cm
Cm=?
+
The length of the side of the square is given as follows:
20 cm.
How to obtain the side length of the square?In the figure, there are two expressions used to give the side length to each square, as follows:
6x - 1.4x + 6.In a square, all the four side lengths have the same length, hence the value of x is obtained as follows:
6x - 1 = 4x + 6
2x = 7
x = 3.5 cm.
Then the side length of the square is obtained as follows:
6(3.5) - 1 = 20 cm.
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What is 2/3 divided by 4 in the Simplest form?
Answer:
2/3 divided by 4 = .16
Step-by-step explanation:
This problem is pretty simple. Since we cannot divide this we can change the division sign into a multiplication, but to do this we need to also take the reciprocal of 2/3, which means we flip th number so it becomes 3/2. Now we can simply multiply. (1/4)*(3/2) which should give you 3/8
Question 5 (1 point)
Solve the inequality for x.
- 3x + 6 < 15
Ox>-3
Ox<-3
0x<-7
Ox>-7
Answer:
x > -3
Step-by-step explanation:
-3x + 6 < 15
-3x < 15 - 6
-3x < 9
-x < 3
x > -3
A. x > -3
Step-by-step explanation:
Step 1: Subtract 6 from both sides.
−3x + 6 − 6 < 15 − 6
−3x < 9
Step 2: Divide both sides by -3.
−3x/−3 < 9/−3
x > −3
The ratio of hotdogs sold to hamburgers sold was 10:7.
If 120 hotdogs were sold, how many hamburgers were sold?
Answer:84
Step-by-step explanation:
Answer:
84 hamburgers were sold
Put the following equation of a line into slope-intercept form, simplifying allfractions.2y – 3x18
EXPLANATION
Given the expression 2y -3x = 18
Adding +3x to both sides:
2y = 3x + 18
Dividing both sides by 2:
y = (3/2)x + 18/2
Simplifying:
y = (3/2)x + 9 [SLOPE-INTERCEPT FORM]
Hence, we have the slope-intercept form :
\(y=mx+b\)where m=slope=(3/2) and b=y-intercept=9
What is the first quartile of the data set represented by the box plot shown
below?
8
15 20
35
43
A. 35
B. 15
C. 20
O
D. 8
Answer:
B. 15
Step-by-step explanation:
The first quartile of a box plot is indicated at the first point of the main box. Hope it helps!
The first quartile in the box plot is 15
Option B is the correct answer.
What is the interquartile range?An interquartile range is a measure of the difference between the upper and lower quartiles of a dataset.
W can find the values of the upper and lower quartile and median from a box plot.
The middle line is the median and the first line is the lower quartile and the last line is the upper quartile.
The formula used is Upper quartile - Lower quartile.
We have,
From the box plot,
Median = 20
First quartile = 15
Third quartile = 35
Now,
The first quartile, denoted as Q1, is a measure of central tendency that divides a dataset into four equal parts.
It is the value that separates the lowest 25% of the data from the rest of the data.
Thus,
The first quartile is 15
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Q1 Combining Functions
An accident at an oil drilling platform on top of the ocean is causing a circular-shaped oil slick to grow on the surface of the water. The area of the oil slick is given by A(r)=πr ^2, where r is the radius of the oil slick in feet. The radius is increasing according to the function r(t)=1.5t, where t is measured in minutes.
Q1.1 Part a)
If it has been 60 minutes since the accident started, what is the area of the oil slick? (Round your answer to 2 decimal places, and include correct units.)
Q1.2 Part b)
Find the function, (A∘r)(t), and then explain what this function means in the context of the question.
Q1.3 Part c)
How long after the accident started will the area of the oil slick be 20,000 square feet? (Round your answer to 1 decimal place and include correct units.)
Q2 Combining Functions
The cost (in dollars) to heat a home during a Summer day in Tucson is a function of the day's high temperature, and it is approximately given by C(H)=0.07H+0.42, where H is the day's high temperature. Suppose that the predicted high temperatures for the next 7 days are given in the table below. (graph at the bottom)
Q2.1 Part a)
Express the high temperature as a linear function of the day. (Make sure to use the given variables.)
Q2.2 Part b)
Use the linear function from Part a) to create a function that represents the daily cost to heat a home in Tucson as a function of the day. (Make sure to use the given variables.)
Q2.3 Part c)
Pick one ordered pair on the graph of the new function from Part b), and then explain what it tells you in the given context of the question.
The volume of the slick would be 25 cubic feet after 60 mins/
How to solve thisConsider the volume of the slick is roughly given as:
V(r) = 0.08\(\pi r^2\)
r is the radius of the slick in feet
And r(t) = 0.5t
V(r(t)) = V(0.5t)
= 0.08\(\pi\)(0.5t)^2
= 0.02\(\pi t^2\)
Recall the volume is 225ft^3
225 = 0.02\(\pi t^2\)
Make t subject formula
t = 60 mins.
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Can someone please help
Two systems of linear equations in two variables, x and y, are given.
System P:
(3x-10y=8
7x+2y=6
The two systems have the same solution..
What are the values of b and c?
b=
System T:
bx - 10 y + 10 y = 38
cx + 10 y = 30
=
C =
Answer:
Step-by-step explanation:
2. Kasie lives in Seattle. She can see her house from the observation deck of the Seattle Space Needle. The
observation deck is 520 feet above the ground and the angle of depression from the deck to her house
is 70. What is the direct distance from the base of the Space Needle to Kasie's house? Round your
answer to the nearest foot.
Direct distance from the base of the Space Needle to Kasie's house = 1429 feet.
What is angle of depression?The angle of depression is the angle between the horizontal line and the observation of the object from the horizontal line. It is basically used to get the distance of the two objects where the angles and an object's distance from the ground are known to us.
Given,
Height of the observation deck AB = 520 feet
Angle of depression = 70°
Distance of the Space needle base to house BC = ?
By the figure,
tan70° = AB/BC
BC = tan70°(AB)
BC = 2.7475(520)
BC = 1428.7 feet
Distance of the Space needle base to house to nearest foot = 1429 feet
Hence, 1429 feet is the distance between base of the Space Needle to Kasie's house.
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1
2
Active
A polynomial is factored using algebra tiles.
+x²+x+X
--X
k
Mark this and return
1
I
I'
T
1
1
I
10
Which polynomial was factored?
Ox²-2x-8
Ox²+2x-8
Ox²-2x-4
Ox²+2x-4
Save and Exit
Next
TIME REMAINING
57:47
Submit
(1) x² - 2 x - 8 and Option (2) x² + 2 x - 8 are two polynomials which has been factored.
Given are the polynomials,
1) x² - 2 x - 8
Factors = (x+2)(x-4)
2) x² + 2 x - 8
Factors = (x-2)(x+4)
3) x²-2x-4 = There will be no integral root.
4) x²+2x-4 = There will be no integral root.
Hence the (1) x² - 2 x - 8 and Option (2) x² + 2 x - 8 are two polynomials which has been factored.
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how can you find the area and perimeter?
After answering the presented questiοn, we can cοnclude that The fοrmula tο find the area and perimeter οf a twο-dimensiοnal shape depends οn the type οf shape
What is equatiοn?An equatiοn in mathematics is a statement that states the equality οf twο expressiοns. An equatiοn is made up οf twο sides that are separated by an algebraic equatiοn (=). Fοr example, the argument "2x + 3 = 9" asserts that the phrase "2x Plus 3" equals the value "9." The purpοse οf equatiοn sοlving is tο determine the value οr values οf the variable(s) that will allοw the equatiοn tο be true.
The fοrmula tο find the area and perimeter οf a twο-dimensiοnal shape depends οn the type οf shape. Here are sοme cοmmοn fοrmulas:
1. Rectangle:
• Area: A = length x width
• Perimeter: P = 2(length + width)
2. Square:
• Area: A = side x side (οr A = side²)
• Perimeter: P = 4 x side
3. Circle:
• Area: A = π x radius²
• Circumference (perimeter): C = 2π x radius (οr C = π x diameter)
4. Triangle:
• Area: A = (base x height) / 2
• Perimeter: P = side1 + side2 + side3
5. Trapezοid:
• Area: A = ((base1 + base2) x height) / 2
• Perimeter: P = side1 + side2 + side3 + side4
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Select the correct answer from each drop-down menu.
The total area of the three triangles is
square units.
The area of the figure is
square units.
The total area of the three triangles is square units is 36 and the area of the figure is square units is 60.
What is the triangle?The triangle can be defined as a three-sided polygon in geometry, and it consists of three vertices and three edges. The sum of all the angles inside the triangle is 180°.
From the figure, the area of triangles can be calculated using the:
Area = (1/2)height×base length
Area of three triangle = 1/2(4×6) + 1/2(6×4) + 1/2(4×6)
Area of three triangle = 1/2(24×3) = 36 square units
Area of the figure = area of three triangle + area of the rectangle
= 36 + 6×4
= 60 square units
Thus, the total area of the three triangles is square units is 36 and the area of the figure is square units is 60.
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The volume of a packing box is 5 - X cubic feet. The width of X feet and the length is X -2 feet. The height is given by the expression 5-X/ X(X -2). Which of these values of X make the expression undefined.
The values of x that make the expression undefined are 0 and 2
How to determine the undefined height value of xFrom the question, we have the following parameters that can be used in our computation:
Volume = 5 - x
Width = x - 2
Height = 5 - x/x(x -2)
Introduce brackets to the height expression to differentiate between the numerator and the denominator
So, we have
Height = (5 - x)/x(x -2)
The question implies that we calculate the domain
Set the denominator to 0
This gives
x(x - 2) = 0
So, we have
x = 0 or x - 2 = 0
Solve for x
x = 0 or x = 2
This means that the undefined height value of x are 0 and 2
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8x100=8x10 to the second power?
I assume you're asking what this expression is to the second power.
(8*100)^2=(8*10)^2
Simplify
8 squared = 64
100 squared = 10000
8 squared = 64
10 squared = 100
Result:
64 + 10000 = 64 + 100
8x100=8x10 is false
How much will the store be selling the cans of spam if they want to make a 420% profit?
Answer:
how many cans?
Step-by-step explanation:
During halftime of a football game, a sling shot launches T-shirts at the crowd A T-shirt is launched from a height of 6 feet with an initial upward velocity of 72 feet per second Use the
equation h(t) = -16 +72t+6, where t is time in seconds and h(t) is height. How long will it take the T-shirt to reach its maximum height? What is the maximum height?
Answer:
Hope this helps ;)
Step-by-step explanation:
To find the time it takes the T-shirt to reach its maximum height, we need to find the value of t when the velocity of the T-shirt is zero, because at this point the T-shirt has reached its maximum height and starts falling back down. We can find the velocity of the T-shirt by taking the derivative of the height equation with respect to time:
v(t) = h'(t) = 72
The velocity of the T-shirt is a constant 72 feet per second, so it will never reach a velocity of zero and will never reach its maximum height. The T-shirt will keep going up indefinitely.
If the problem had specified that the T-shirt was launched with an initial upward velocity of -72 feet per second (meaning it was launched downward), then we could have found the time it takes the T-shirt to reach its maximum height by setting v(t) = 0 and solving for t. In this case, we would find that t = 1, so it would take the T-shirt 1 second to reach its maximum height. The maximum height would be h(1) = -16 + 72(1) + 6 = 62 feet.