X-(-16)=-28+12
Please help me!
Answer:
x = -32
Step-by-step explanation:
x -(-16) = -28 + 12
x + 16 = - 16
x = -32
So, the answer is x = -32
Name ALL the sets of numbers to which -28 belongs.
a. Integers
b. Naturals, Integers, Reals
c. Integers, Rationals
d. Integers, Rationals, Reals
The altitude of a triangle is increasing at a rate of 1.5 centimeters/minute while the area of the triangle is increasing at a rate of 4.5 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 7.5 centimeters and the area is 97 square centimeters"
When the altitude is 7.5 cm and the area is 97 cm², the base of the triangle is changing at a rate of approximately -1.9869 cm/min.
We wish to determine the rate at which the base (b) is changing when h = 7.5 cm and A = 97 cm², given that the altitude (h) is rising at a rate of dh/dt = 1.5 cm/min and the area (A) is rising at a rate of dA/dt = 4.5 cm²/min.
To solve this problem, we can use the formula for the area of a triangle: A = (1/2) x base x altitude.
First, let's differentiate the formula for the area of a triangle with respect to time:
dA/dt = (1/2) x (db/dt) x h + (1/2) x b x (dh/dt).
Now, let's substitute the given values:
4.5 = (1/2) x (db/dt) x 7.5 + (1/2) x b x 1.5.
Next, let's rearrange the equation to solve for db/dt, the rate at which the base is changing:
(db/dt) x 7.5 = 4.5 - 0.75b.
= (4.5 - 0.75b) / 7.5.
Now, we need to find the value of b when h = 7.5 cm and A = 97 cm². We can use the formula for the area of a triangle:
97 = (1/2) x b x 7.5.
Simplifying this equation, we get:
b = (2 x 97) / 7.5.
≈ 25.87 cm.
Now, substitute this value into the equation for db/dt:
db/dt = (4.5 - 0.75 x 25.87) / 7.5.
= (4.5 - 0.75 x 25.87) / 7.5.
= (4.5 - 19.4025) / 7.5.
= (-14.9025) / 7.5.
≈ -1.9869.
The negative sign indicates that the base is decreasing.
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which one? A? B? C? or D? help me pleaseee
Answer:
I'm pretty sure it's C I may be wrong though
Step-by-step explanation:
I need help in this question please
Answer:
f(x) and g(x) have the same y-intercept
Step-by-step explanation:
the y-intercept is the point, where the graph intersects the y-axis.
and what is the definition of the y-axis ? it is
x = 0
for all the values up and down the y-axis, their x-coordinate is 0.
so, to find the y-intercept we find the functional value for x = 0.
and that is here in both cases : -32
and the y-intersect point is therefore for both functions:
(0, -32)
B
D
E
С
3
In the figure above, tan B
If BC = 15 and DA = 4, what is the length of DE
Answer:
Step-by-step explanation:
{y2+8y−128=0x=34⋅(y+4) ... The two right triangle are similar, so: BDAB=DEAC. From this, I obtain: ... AC=3x AB=4x (3x)²+(4x)²=225 x=3 BD=8 AB/AC=BD/DE 12/9=8/DE DE=6.
The length of segment DE in the given triangle is 6 units.
What are trigonometric ratios?Trigonometric Ratios are defined as the values of all the trigonometric functions based on the value of the ratio of sides in a right-angled triangle.
Given that, a right-angled triangle ABC, with a segment DE, where tan B = 3/4, BC = 15 and DA = 4
Since, tan B = 3/4
Cos B = 4/5
Cos B = AB / BC
therefore,
4/5 = AB / 15
AB = 12
BD = AB - AD = 12-4
BD = 8
Now, Tan B = 3/4
DE / BD = 3/4
DE / 8 = 3/4
DE = 6 units
Hence, the length of segment DE in the given triangle is 6 units.
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In statistics, a population consists of:
A. all people living in the area under study
B. all subjects or objects whose characteristics are being studied
C. a selection of a limited number of elements
D. all people living in a country
All subjects or objects whose characteristics are being studied.
What is Statistics?In statistics, a population consists of all subjects or objects whose characteristics are being studied. This means that a population can be defined as a group of individuals, objects, or events that have something in common.
For example, if you are conducting a survey on the opinions of people in a city, the population would be all the people living in the city. If you are studying the behavior of cats, then your population would be all cats. In short, the population is the group of individuals or objects that you are interested in studying.
In addition, the population can be further broken down into subgroups, such as males and females, different age groups, geographical regions, and so on. This is known as stratifying the population and can help researchers to better understand the characteristics of their population and make more accurate conclusions.
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PLZZZ HELPP 3+7 - 1/2 is an example of
A. a numerical equation
B. an algebraic equation
C. a numerical expression
D. an algebraic expression
What is the inverse of the function f(x) = x 3? h(x) = one-thirdx 3 h(x) = one-thirdx – 3 h(x) = x – 3 h(x) = x 3
The inverse of the function f(x) = \(x^{3}\) is : \(\sqrt[3]{x}\)
What is the inverse of a function?The inverse of a function is that function that acts to undo a given function.
Analysis:
if f(x) = x^{3}, then let y = \(x^{3}\)
\(\sqrt[3]{y}\) = \(\sqrt[3]{x^{3} }\)
x = \(\sqrt[3]{y}\)
Replace y with x
h(x) = \(\sqrt[3]{x}\)
in conclusion, the inverse of h(x) = \(\sqrt[3]{x}\)
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A Norman window is constructed by adjoining a semicircle to the top of an ordinary rectangular window (see figure). Find the dimensions of a Norman window of maximum area if the total perimeter is 22 feet.
The dimensions of a Norman window of maximum area if the total perimeter is 22 feet are: Width of the rectangular part = 11/(4π) feet, Height = 11/(4π) feet and Radius of the semicircle part = (22 - 11/π) / π feet
To find the dimensions of the Norman window of maximum area, we need to use optimization techniques. Let's first define some variables:
- Let's call the width of the rectangular part of the window "w".
- Let's call the height of the rectangular part of the window "h".
- Let's call the radius of the semicircle "r".
From the problem, we know that the total perimeter of the window is 22 feet. That means:
- The perimeter of the rectangular part of the window is 2w + 2h.
- The perimeter of the semicircle part of the window is half the circumference of a circle with radius "r", which is πr.
So we can write an equation for the total perimeter:
2w + 2h + πr = 22
We also know that the area of the window is given by:
A = wh + 1/2π\(r^2\)
Our goal is to maximize A. To do that, we need to express A in terms of just one variable, so we can take the derivative and find the maximum. We can use the equation for the perimeter to solve for one of the variables in terms of the others. For example, we can solve for "r":
r = (22 - 2w - 2h) / π
Now we can substitute this expression for "r" into the equation for the area:
A = wh + 1/2π [(22 - 2w - 2h) / π\(]^2\)
Simplifying this equation, we get:
A = wh + 1/2π (484 - 44w - 44h + 4wh)
To find the maximum of this function, we need to take the partial derivatives with respect to "w" and "h" and set them equal to zero:
∂A/∂w = h - 22/(2π) + 2wh/(2π) = 0
∂A/∂h = w - 22/(2π) + 2wh/(2π) = 0
Solving these equations simultaneously, we get:
w = h = 11/(4π)
Now we can substitute these values into the equation for "r" to find the radius of the semicircle:
r = (22 - 2w - 2h) / π = (22 - 11/π) / π
Therefore, the dimensions of the Norman window of maximum area are:
- Width of the rectangular part: w = h = 11/(4π) feet
- Height of the rectangular part: w = h = 11/(4π) feet
- Radius of the semicircle part: r = (22 - 11/π) / π feet
Note that we could also have used the equation for "r" to solve for "w" or "h" instead, and we would have gotten the same result.
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20 POINTS QUICK PLEASE What's the answer to the question using the information provided in pink? Also the destination is France with 67,750,000 people
6r + 4n when r = 5 and n = 2
Step-by-step explanation:
When r = 5 and n = 2
Then
6r + 4n
= 6 * 5 + 4 * 2
= 30 + 8
= 38
Hope it will help :)
PLEASE HELP .!!! ILL GIVE BRAINLIEST.. *EXRTA POINTS* .. DONT SKIP :(( !
ILL GIVE 40 POINTS .
Answer:
I believe the answer is 120 cubic yards
Step-by-step explanation:
V = LWH
V = (6)(2)(10)
V = (12)(10)
V = 120
Can you help me with ratios?
Consider the system of equations.
h(x)=4x–2
j(x)=−2x+4
What does the point (1, 2) represent in the system of equations?
A
the minimum value
B
the maximum value
C
the point when h(x)=j(x)
D
the domain and the range
Answer:
b. if dont d cuz I did this one but I kinda forgot
Answer:
Yall its d
Step-by-step explanation:
Because the x value represents the domain which is 1 and the y value represents the range which is 2
Can someone help me out? Pls it’s urgent!!! ASAP! (Geometry)
“Complete the proof”
1) \(\overline{WX} \cong \overline{UY}\), \(\angle YXZ \cong \angle XYZ\) (given)
2) \(\overline{XY} \perp \overline{XY}\) (reflexive property)
3) \(\triangle WXY \cong \triangle UYX\) (SAS)
4) \(\overline{WY} \perp\overline{ UX}\) (CPCTC)
Here is one of the other ones.
I need help with this
Answer:
8x + 8 = 6x + 20/3
Step-by-step explanation:
Explain why the following is correct x3x4=x7
Answer:
x^3 * x^4 = x^7
Step-by-step explanation:
When multiplying numbers with the same base and different exponents the two exponents are added, and the base is kept the same.
Example
x^3= x * x * x
x^4= x * x * x * x
(x * x * x * x) * (x * x * x) = x^7
is 3.14 a terminating decimal ?
Answer:
Yes, it is a terminating decimal.
Step-by-step explanation:
3.14 ends and it does not repeat. If it repeated, it would be a repeating decimal but since it does not, it is a terminating decimal.
Jackson makes fruit punch by mixing the ingredients listed below.
6 cups of orange juice
5 pints of fruit punch
8 cups of apple juice
How many quarts of fruit punch does Jackson make?
A.3
B.6
C.24
D.96
Answer: B
Step-by-step explanation:
First, let's convert the 5 pints of fruit punch to cups:
5 pints = 5 x 2 cups/pint = 10 cups
Now we can add up the cups of each ingredient:
6 cups of orange juice + 10 cups of fruit punch + 8 cups of apple juice = 24 cups
Since there are 4 cups in a quart, we can divide by 4 to get the number of quarts:
24 cups ÷ 4 cups/quart = 6 quarts
Therefore, Jackson makes 6 quarts of fruit punch.
pedro took an exam in a class in which the mean was 68 with a standard deviation of 10. if his z-score was 3, what was his exam score?
To find Pedro's exam score, we can use the formula for calculating the z-score:
z = (x - μ) / σ,
where z is the z-score, x is the exam score, μ is the mean, and σ is the standard deviation.
Given that Pedro's z-score was 3, we can rearrange the formula to solve for x:
3 = (x - 68) / 10.
Multiplying both sides of the equation by 10, we get:
30 = x - 68.
Adding 68 to both sides, we find:
x = 30 + 68 = 98.
Therefore, Pedro's exam score was 98.
The z-score measures how many standard deviations an individual's score is above or below the mean. In this case, Pedro's z-score of 3 indicates that his exam score was 3 standard deviations above the mean of 68.
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Which side lengths form a right triangle?
Answer:
a is the answer
hope this will help you
2. for each infinite sequence suggested below, give its generating function in closed form, i.e., not as an infinite sum. (use the most obvious choice of form for the general term of each sequence.)
The general term of each sequence that are given are \(a_{n} = n+2 / 2\) ; nEN for the each infinite sequence suggested below, give its generating function in closed form, i.e., not as an infinite sum.
The infinite sequence that are generally number's that doesn't have any ending and are called as the infinite sequence and other that have finite sequence which have final numbers.
Here given infinite sequence are :
\(a1 =1 , a2= 0 , a3= 0 , a4 = 1.\\closed form of infinite sequence is an = 1 and 0 otherwise.\\sequence that s given is 3,2,4,1,1,1 and\\ a1 = 3 , a2 2 , a3= 4, a4= 1.\\an = 3, n =1, a2 = 2, a3 = 4, \\no n= 1, n=2, n=3 1 otherwise\\Given sequence is 1,3,6,10 ,15 \\then an = n+2 /2.\)
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Knowing that 6 < x < 7 and 10 < y < 12, find the possible values of x+y,xy,y/x,y-x
16<x+y<19,60<xy<84,10/7<y/x<12/6,3<y-x<6
smallest with the smallest biggest with the biggest, biggest with smallest, smallest with biggest
Write the opposite of each integer.
-(-8)
-(-65)
PLS HELP ME TYSM
Answer:
it should be -8 and -65 you would use parentheses first then you would have the negative integers in it's place
hu and colleagues (2001) studied how organizational citizens affect customer service. the conclusions they drew were limited because tellers were not randomly assigned to treatment conditions. how did they address such concerns?
Hu and colleagues (2001) addressed concerns about the lack of random assignment to treatment conditions by using a quasi-experimental design.
In their study, Hu and colleagues (2001) used a quasi-experimental design to examine how organizational citizenship behaviors (OCBs) of bank tellers affect customer service. A quasi-experimental design is a type of research design that lacks the random assignment of participants to treatment conditions, which is a key characteristic of true experimental designs.
To address the concerns about the lack of random assignment in their study, Hu and colleagues (2001) used statistical techniques to control for potential confounding variables and to increase the internal validity of their findings. They also carefully selected their sample of bank tellers and customers to ensure that the groups were as similar as possible, which helped to increase the external validity of their study.
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24 quarts of oil at $1.79 per quart
Answer:
It would be $42.96.
Step-by-step explanation:
Answer:
$42.96
Step-by-step explanation:
24 multiplied by 1.79 equals 42.96
Brainliest pls? Hope it helps :)
have a good day/night
help me please! THis is the last one i need hurry!!!!!!!!
Answer:
900 in^2
Step-by-step explanation:
Triangle area = ( b x h )/ 2
rectangle area = b x h
------------------------------------------
triangle:
30 * 40 / 2 = 600 in^2
rectangle:
30 * 20/2 = 300 in^2
---------------------------------------
600 + 300 = 900 in^2
suppose a plant grow one inch every year if X is how old the plant is (years) and f(x) is how tall the plant is (in inches) what type of function is f(x)?
A. constant function
B. identity function
C. absolute value function
D. step function
The function f(x) represents an identity function.
We have a plant that grows one inch every year. X represents how old the plant is (in years) and f(x) is how tall the plant is (in inches).
We have to determine what type of function is f(x).
The count of corona cases (y) increase by 50 cases each day. If x represents the number of days, then write function to calculate the number of corona cases after 'x' days. Determine the type of function it is.The equation representing the number of corona cases after 'x' days is -
y = 50x
The nature of this function is Linear.
According to the question, we have -
A plant grow one inch every year.
X is how old the plant is (years).
f(x) is how tall the plant is (in inches).
The equation representing the statement - a plant grow one inch every year can be written as -
f(x) = x
y = f(x) = x
which is a identity function.
Hence, the function f(x) represents an identity function.
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