Answer:
the ones you can use are A,B and E
Step-by-step explanation:
Plug each one in and find out if it works or not
A hot-air balloon 70 meters above the ground is falling at a constant rate of 6
meters per second while another hot-air balloon 10 meters above the ground is
rising at a constant rate of 15 meters per second. To the nearest tenth of a second,
after how many seconds will the 2 balloons be the same height above the
ground?
A. 8.9
B. 6.7
C. 2.9
D. 0.4
E. 0.2
help me plsssss i rlly need helppppp i'll give brainliestttt
Which transformation would result in the image of a polygon having a different area from its preimage?
Answer:
Step-by-step explanation:
(x,y)→(11.2x,11.2y)
I need help on these questions
Answer:
Answer 1
Step-by-step explanation:
We can use the communitive property of addition to help us in the problem. 16x-12-24x+4 can be either rearranged or solved. If we were to try to solve it, then it would be 16x-24x-12+4=-8x-8. Now we look at our options. Option 1 says that 4+16x-12(1+2x). Using the distributive property, we conclude 4+16x-12+24x. This is basically rearranging the original question so answer 1 is the correct one.
Find an equation for the line tangent to the graph of the given function at the indicated point. 8 3) f(x): () = at at (4,2) X 1 4) f(x)=x2-x at (4, 12)
(a) tangent line to the graph of f(x) = x^3 at the point (4,2).
(b) equation of the tangent line to the graph of f(x) = x^2 - x at the point (4,12).
(a) To find the equation of the tangent line to the graph of f(x) = x^3 at the point (4,2), we need to find the slope of the tangent line at that point. We can do this by taking the derivative of f(x) with respect to x and evaluating it at x = 4. The derivative of f(x) = x^3 is f'(x) = 3x^2. Evaluating f'(x) at x = 4 gives us the slope of the tangent line. Once we have the slope, we can use the point-slope form of a linear equation to write the equation of the tangent line.
(b) Similarly, to find the equation of the tangent line to the graph of f(x) = x^2 - x at the point (4,12), we differentiate f(x) to find the derivative f'(x). The derivative of f(x) = x^2 - x is f'(x) = 2x - 1. Evaluating f'(x) at x = 4 gives us the slope of the tangent line. Using the point-slope form, we can write the equation of the tangent line.
In both cases, the equations of the tangent lines will be in the form y = mx + b, where m is the slope and b is the y-intercept.
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Complete the proof that angle XYZ is congruent to angle WXY.
Answer:
Step-by-step explanation:
They are the same angle in the obtuse triangle and same points but mixed up proof: you can highlight the lines and make points for the letters w x and y hope this helps :)
what does the dml compiler do relational algebra
The DML Compiler translates Data Manipulation Language (DML) queries into Relational Algebra operations to be used by the Relational Database Management System (RDBMS).
The DML Compiler starts by parsing the query to determine which operations are needed. It then builds an Abstract Syntax Tree (AST) which is a hierarchical representation of the query. Next, the DML Compiler will perform semantic analysis on the AST to ensure that all operations are valid and the query is valid. After the semantic analysis has been done, the DML Compiler will then translate the AST into Relational Algebra operations, which are a collection of mathematical rules used to manipulate data in a relational database. Finally, the DML Compiler will generate an executable code and send it to the RDBMS to be executed. The result of the query is then returned to the user.
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EMERGENCY PLS HELP: What is the area of the triangle?
Answer:
6ft i think
Step-by-step explanation:
Formula: LxWxH/2
4x3=12/2=6
Need an answer within an hour i will give brainlist dont write just anything please. thank you
Answer:
its not a straight line so what is the question ???????? maybe f(-3) = -3f
Step-by-step explanation:
Write the following system of linear first order differential equations in matrix form:
x’=x+2y-4e²ᵗ
x’=3x
So, the matrix representation of the given system of linear first-order differential equations is: X' = [1 2; 3 0] X + [ -4e^(2t); 0 ].
To write the given system of linear first-order differential equations in matrix form, we can define the vector of variables X as X = [x, y].
The system can then be represented as:
X' = AX + B
where X' is the derivative of X with respect to the independent variable, A is the coefficient matrix, X is the vector of variables, and B is the vector of constant terms.
For the given system:
x' = x + 2y - 4e^(2t)
y' = 3x
The matrix form of the system becomes:
X' = [1 2; 3 0] X + [ -4e^(2t); 0 ]
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1/5 of slabs are grey
whats the ratio of grey to yellow
Answer:
which number/word came first?
Step-by-step explanation:
the order of items in a ratio is very important! whichever word came first in a ratio ( when expressed in words) it was number must come first.
example: ratio from pizza to bread. 20 pizza 15 bread= 20-15
so 1-5 i think.
since it said Grey first then yellow.
C(x) = 0.05x2 + 22x + 340, 0 < < 150. (A) Find the average cost function C(x). (B) List all the critical values of C(x). Note: If there are no critical values, enter 'NONE'. (C) Use interval notation
A) The average cost function C(x) can be obtained by dividing the total cost function by the quantity x:
C(x) = (0.05x^2 + 22x + 340) / x
Simplifying this expression, we get:
C(x) = 0.05x + 22 + 340/x
Therefore, the average cost function C(x) is given by 0.05x + 22 + 340/x.
B) To find the critical values of C(x), we need to determine the values of x where the derivative of C(x) is equal to zero or is undefined. Taking the derivative of C(x) with respect to x, we have:
C'(x) = 0.05 - 340/x^2
Setting C'(x) equal to zero and solving for x, we find:
0.05 - 340/x^2 = 0
Rearranging the equation, we have:
340/x^2 = 0.05
Simplifying further, we get:
x^2 = 340/0.05
x^2 = 6800
Taking the square root of both sides, we find two critical values:
x = ± √(6800)
Therefore, the critical values of C(x) are x = √(6800) and x = -√(6800)
C) Using interval notation, we can express the domain of x where the function C(x) is defined. Given that the range of x is from 0 to 150, we can represent this interval as (0, 150).
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Write the prime factorization of 21. Use exponents when appropriate and order the factors from least to greatest (for example, 2235).
The prime factorization of the number 21 is:
21 = 3*7
How to write the prime factorization?We want to write the prime factorization of 21.
To do so, we just need to divide the number by prime numbers.
The first prime number we can try is 2, if we divide by 2 we get:
21/2 = 10.5
This is not an integer, so 2 is not a factor.
The next one is 3:
21/3 = 7
Now we can rewrite:
21 = 3*7
Where 3 and 7 are prime numbers, so that is the prime factorization.
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HELP WILL MARK YOU BRAINLIEST!!!!
Answer:
24
Step-by-step explanation:
since x equaled 46 and a bisector cuts it in half it'll become 24.
Answer:
3x _6+x+2=180
3x+x-6= 180-2
4x-6 =178
4x=178+6
4x=184
x =184÷4
x=46 ans
Step-by-step explanation:
x = 46
its math- easy math im just dumb
Answer:
x y
1 15
2 30
3 45
4 60
5 75
Step-by-step explanation:
Hope this works!
Answer:
x y
1 = 15
2 = 30
3 = 45
4 = 60
5 = 75
Step-by-step explanation:
Plz mark brainliest!!!
A 150-gram bag of berries is a mixture of raspberries and blueberries. If 80% of the bag is raspberries, how many grams of blueberries are in a bag?
Answer:
30g
Step-by-step explanation:
Since the bag is a total of 150 grams...
100% = 150
1% = 150 ÷ 100 = 1.5
Find out 80% of the bag which is finding out how many raspberries there are in the bag.
80% = 1.5 x 80 = 120
The remaining in the bag out of the raspberries is the berries.
150 - 120 = 30 (berries)
how many solutions does the nonlinear system of equations graphed below have?
Answer:
A. Zero
Step-by-step explanation:
The upside down parabolic graph has no roots because it not linear
if we want to provide a 99onfidence interval for the mean of a population, what will the confidence coefficient be?
If we want to provide a 99% confidence interval for the mean of a population, the confidence coefficient will be 0.99. This means that there is a 99% probability that the true population mean falls within the calculated interval.
The confidence coefficient for a confidence interval represents the level of confidence we have in our estimate.
In the case of a 99% confidence interval, the confidence coefficient is 0.99. This means that we are 99% confident that the true population mean falls within the calculated interval. The confidence coefficient is derived from the desired level of confidence, which is typically expressed as a percentage.
A higher confidence level corresponds to a larger confidence coefficient. In practical terms, a 99% confidence interval indicates that if we were to repeat the sampling process multiple times and construct 99% confidence intervals, approximately 99% of those intervals would contain the true population mean.
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IS
√21 A
RATIONAL
NUMBER? PLEASE
EXPLAIN
CLEARLY WHY IT
EITHER IS OR
ISN'T.
Answer:
√21 is irrational
Step-by-step explanation:
√21 = 4.58257569495584 which is a non-terminating decimal.
Therefore √21 is irrational.
Answer: No, it cannot be a rational number.
Step-by-step explanation:
A rational number is defined to be a whole number (ex. 1, 2, 3) or can be decimals that continuously repeat the digits after the point. In the case of a square root, they can be rational--but this only applies to perfect squares: √100, √64, √16, etc, which would give an outcome of a whole number. Therefore, √21 is not a rational number, as the decimal value is 4.57257, and is not continuous (ex. 3.666666).
If u and v are orthogonal, what is the magnitude of \mathbf{u} \times \mathbf { v }u×v?
If u and v are orthogonal, then the magnitude of |u × v| = |u| |v|.
If u and v are orthogonal, meaning they are perpendicular to each other, then the magnitude of the cross product u × v is equal to the product of the magnitudes of u and v multiplied by the sine of the angle between them, which is 90 degrees since they are orthogonal.
Therefore, the magnitude of u × v is equal to the product of the magnitudes of u and v.
In mathematical terms,
|u × v| = |u| × |v|
Note: The magnitude of a cross-product is equal to the area of the parallelogram determined by the two vectors.
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--The given question is incomplete; the complete question is
"If u and v are orthogonal, what is the magnitude of |u × v|?"--
When a number is put into a machine, a different number comes out. If 5 goes in, 2 comes out. If 7 goes in, 4 comes out. If 8 goes in, 5 comes out. If 10 goes in, what number should come out? A 3 B 7 C 9 D 10
Order of addends has no bearing on the amount according to the commutative property of addition. 6 added value.
How to find the calculation?The machine below produces a different number when a number is entered. 9 is produced if 3 is inserted. If 6 is put in, 12 will come out. If 7 is put in, 13 will come out.
Order of addends has no bearing on the amount according to the commutative property of addition.
Changing the addends' order does not alter the amount, according to the commutative property of addition.
Every output number, as we can see, adds a value of 6 to the corresponding input number.
3 + 6 = 9.
6 + 6 = 12.
7 + 6 = 13.
The Complete Question.
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the difference between 2 numbers is 12. the larger number is 3 times the smaller. what are the numbers
Step-by-step explanation:
hope it helps you check it if there is a mistake sorry!! for that
Can someone please help??
FIND THE VALUE OF X
Answer:
x = 29
Step-by-step explanation:
The two triangles are congruent. Therefore, 2x = 3x - 29, and so 29 = x
Turn into a equivalent form 6x²+13x+5
Answer:
Assuming the questions wants another form of 6x²+13x+5:
(2x+1)(3x+5) would work.
Step-by-step explanation:
Multiply (2x+1)(3x+5) and you'll get 6x^2+13x+5
Find the greatest common factor for each problem.use the t-chart to slow?
16 and 40
Gcf:
The required GCF is 8.
The greatest common factor is that greatest number from the factors which divides the number completely.
For example take numbers 12 and 16.
The factors of 12 are 2×2×3.
And the factors of 16 are 2×2×2×2.
We can clearly see that the common factors are 2×2 which gives 4. So, 4 is the greatest common factor which divides both 12 and 16.
Here it is given to find the greatest common factor of 16 and 40.
Factors of 16 = 2×2×2×2
Factors of 40 = 2×2×2×5
We can see clearly the common factors are 2×2×2 which gives 8.
So, 8 is the greatest common factor.
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Sid mows two lawns.the first lawn is 60 feet wide.the area of the second lawn is three times as big but has the same width as the first. what is the length of the second lawn
The length of the second lawn, L2, is three times the length of the first lawn, L1, for the given rectangular lawn.
To find the length of the second lawn, we need to determine the area of the first lawn and then calculate the length of the second lawn based on that.
The area of a rectangle can be found by multiplying its length by its width. Given that the width of the first lawn is 60 feet, we can find its area by multiplying 60 feet by the length of the first lawn.
Let's assume the length of the first lawn is L1. So, the area of the first lawn is 60 feet * L1.
The area of the second lawn is three times as big as the area of the first lawn. So, we can write the equation:
Area of second lawn = 3 * Area of first lawn
Substituting the values we know, we have:
60 feet * L2 = 3 * (60 feet * L1)
Now, let's simplify this equation:
L2 = 3 * L1
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g(x) = 4x-1; find g(1)
Answer: I believe it is 3
Step-by-step explanation:
The population of a town is decreasing at a rate of 3.2% per year. In 2015, there were 14,250 people. What is the first year that the population will be less than 10,000?
А
2026
B
2020
С
2016
D
2025
Given the lines shown here, what are two possible equations for this system of equations?
How many solutions does this system of equations have? Explain your reasoning.
Answer:Two possible equations:The system has 0 solution as parallel lines never cross each other.
Step-by-step explanation:noice
B is the midpoint of AC. AB = 2x + 12 and AC = 10x - 12.
Find the following:
x:
AB:
BC:
AC:
Answer:
Step-by-step explanation:
If B is the midpoint of AC, then AB = BC and AB+BC = AC
AB +AB = AC
2AB = AC
2(2x+12) = 10x-12
4x+24 = 10x-12
collect like terms:
4x-10x = -12-24
-6x = -36
x = -36/-6
x = 6
Get AB:
AB = 2x+12
AB = 2(6)+12
AB = 12+12
AB = 24
Since AB = BC, hence BC = 24
AC = AB+BC
AC = 24+24
AC = 48