Flowers that bloom = y
number of seed planted = x
Therefore,
\(\begin{gathered} y=mx+b \\ m=\frac{18-9}{36-24}=\frac{9}{12}=\frac{3}{4} \\ 9=\frac{3}{4}\times24+b \\ 9-18=b \\ b=-9 \\ y=\frac{3}{4}x-9 \end{gathered}\)The answer is D.
Please please look at the picture and answer the question thank you for your help
Answer:
20 for both
Step-by-step explanation:
hope this helps
2.The number of grams A of a certain radioactive substance present at time, in yearsfrom the present, t is given by the formulaA = 45e^-0.0045ta. What is initial amount of this substance?b. What is half-life of this substance?c. How much will be around in 2500 years?
Answer:
Given that,
The number of grams A of a certain radioactive substance present at time, in years
from the present, t is given by the formula
\(A=45e^{-0.0045(t)}\)a) To find the initial amount of this substance
At t=0, we get
\(A=45e^{-0.0045(0)}\)\(A=45e^0\)We know that e^0=1 ( anything to the power zero is 1)
we get,
\(A=45\)The initial amount of the substance is 45 grams
b)To find thehalf-life of this substance
To find t when the substance becames half the amount.
A=45/2
Substitute this we get,
\(\frac{45}{2}=45e^{-0.0045(t)}\)\(\frac{1}{2}=e^{-0.0045(t)}\)Taking natural logarithm on both sides we get,
\(\ln (\frac{1}{2})=-0.0045(t)^{}\)\((-1)\ln (\frac{1}{2})=0.0045(t)\)\(\ln (\frac{1}{2})^{-1}=0.0045(t)\)\(\ln (2)=0.0045(t)\)\(0.6931=0.0045(t)\)\(t=\frac{0.6931}{0.0045}\)\(t=154.02\)Half-life of this substance is 154.02
c) To find the amount of substance will be present around in 2500 years
Put t=2500
we get,
\(A=45e^{-0.0045(2500)}\)\(A=45e^{-11.25}\)\(A=45\times0.000013=0.000585\)\(A=0.000585\)The amount of substance will be present around in 2500 years is 0.000585 grams
the answer for these questions
The triangles are similar by SSS congruence of triangles.
What is SSS congruence of triangles?
The two triangles are congruent if the three sides of one triangle are the same as the corresponding three sides (SSS) of the other triangle.
We are given two triangle ABC and PQR.
In order to see whether these are similar or not, we will use the SSS congruence of triangles.
The ratio of sides are:
⇒AB : PQ = 8 : 6
⇒AB : PQ = 4 : 3
Similarly,
⇒BC : QR = 12 : 9
⇒BC : QR = 4 : 3
Similarly,
⇒AC : PR = 12 : 9
⇒AC : PR = 4 : 3
Since, the ratio of all the sides is same so, the triangles are similar.
Hence, the triangles are similar by SSS congruence of triangles.
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Since, there are multiple questions so, the question answered above is attached below
Please help me right now!
Thank you so much
The length of the arc KL in the given circle is 3.49 units
How to find the length of the arc KL?In a circle whose radius is R, the length of an arc defined by an angle x is given by:
Length = (x/360)*2*3.14*R
Here we know that the radius is 2 units, and the angle for the arc KL is 100°, then we can replace these values in the formula above so we get that the length of the arc is:
Length = (100/360)*2*3.14*2
Lenght = 3.49 units.
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$13,000 is deposited into a savings account with an annual interest rate of 3% compounded continuously. How much will be in the account after 5 years?
Round to the nearest cent.
$15,106.00
$15,103.85
$43,714.05
$66,979.54
Answer:
15,103.05
Step-by-step explanation:
Total amount in the saving account after 5 years in which the annual interest, compounded continuously, is $15,103.85.
What is compound interest?Compound interest is the amount charged on the principal amount and the accumulated interest with a fixed rate of interest for a time period.
The formula for the final amount with the compound interest formula can be given as,
\(A=P\times\left(1+\dfrac{r}{100n}\right)^{nt}\\\)
Here, A is the final amount (principal plus interest amount) on the principal amount P of with the rate r of in the time period of t.
$13,000 is deposited into a savings account with an annual interest rate of 3% compounded continuously.
The amount in account after 5 years can be calculated with the above formula as,
\(A=13000\times\left(1+\dfrac{3}{12\times100}\right)^{12\times5}\\A=15101.02\)
The total amount in the saving account after 5 years in which the annual interest, compounded continuously, is $15,103..85.
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Write 5 times x to the two thirds power in radical form.
I need to know if these are correct and if they are not can someone pleas help me they are supposed to be simplified
Answer:
no it all are wrong answer give your pelvis
Answer:
It seems to be correct if you had used the rules properly
For example, the 2 number power rule is used. Similarly, the 3 number quotient rule is used. I think that your answers are correct if you applied the rules properly.
Step-by-step explanation:
How would I find the missing angle measurements
Anwser :
Y is 72
X is 108
Z is 18
Steps :
Y is the same angle as 72
180 - 72 = 108
90 - 72 = 18
Brainlyst for the best answer thank you!
Which inequality is shown in the graph?
Answer:
The answer is "A" i think not 100% sure
tell me if wrong
Kaitlin cut 4 1/12 yards of fishing line from a new reel. How much is this in inches?
Write your answer as a whole number or a mixed number in simplest form. Include the correct unit in your answer.
The value of 4 1/12 yards of fishing line from a new reel in inches is 162 inches.
How to calculate the value?It is important to note that 1 yard = 36 inches.
From the information, Kaitlin cut 4 1/12 yards of fishing line from a new reel.
This will be represented in inches as:
= 4 1/2 × 36
= 9/2 × 36
= 162 inches.
This represents the value in inches.
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PLEASEEEEE HELP MEEEEEE
Answer:
A) Vector component for the cruise ship: (0, -22)
B) Vector component for the Gulf Stream: (4, 0)
C) Resultant vector: (4, -22)
D) Resultant velocity: Approximately 22.4 mph (rounded to the nearest tenth)
E) Resultant direction: Approximately -80.5 degrees (rounded to the nearest tenth)
Step-by-step explanation:
To solve this problem, we'll consider the velocities of the cruise ship and the Gulf Stream as vectors and calculate their components and resultant vector. Then we'll find the magnitude (resultant velocity) and direction (resultant direction) of the resultant vector.
Given:
Cruise ship velocity (south): 22 mph
Gulf Stream velocity (east): 4 mph
A) Vector component for the cruise ship:
The cruise ship is traveling south, so its velocity vector is (0, -22).
B) Vector component for the Gulf Stream:
The Gulf Stream is flowing east, so its velocity vector is (4, 0).
C) Resultant vector:
To find the resultant vector, we'll add the two velocity vectors together:
Resultant vector = Cruise ship velocity + Gulf Stream velocity
Resultant vector = (0, -22) + (4, 0)
Resultant vector = (0 + 4, -22 + 0)
Resultant vector = (4, -22)
D) Resultant velocity:
The magnitude of the resultant vector gives us the resultant velocity. We can use the Pythagorean theorem to calculate it:
Resultant velocity = sqrt((x-component)^2 + (y-component)^2)
Resultant velocity = sqrt((4)^2 + (-22)^2)
Resultant velocity = sqrt(16 + 484)
Resultant velocity = sqrt(500)
Resultant velocity ≈ 22.4 mph (rounded to the nearest tenth)
E) Resultant direction:
The direction of the resultant vector can be found using trigonometry. We'll use the inverse tangent function (arctan) to find the angle between the resultant vector and the positive x-axis.
Resultant direction = arctan(y-component / x-component)
Resultant direction = arctan(-22 / 4)
Resultant direction ≈ -1.405 radians or -80.5 degrees (rounded to the nearest tenth)
Therefore, the answers are:
A) Vector component for the cruise ship: (0, -22)
B) Vector component for the Gulf Stream: (4, 0)
C) Resultant vector: (4, -22)
D) Resultant velocity: Approximately 22.4 mph (rounded to the nearest tenth)
E) Resultant direction: Approximately -80.5 degrees (rounded to the nearest tenth)
Evaluate the following expression given.
In order to evalute this function, we must substitute x=-2 into the equation. It yields
\(\frac{4(-2)+3(-2)+2(-2)+(-2)}{-2}\)By computing the porduct we have
\(\frac{-8-6-4-2}{-2}\)which is equat to
\(\begin{gathered} \frac{-20}{-2} \\ \sin ce\text{ minus times minus is plus, we have} \\ \frac{10}{2} \end{gathered}\)Finally, the evaluations gives 5.
Find the value of x .. assume that segments that appear to be tangent are tangent .
We got x = 16.54 by using Pythagorean theorem .
What is the Pythagorean theorem in plain English?
According to Pythagoras's Theorem, the square of the hypotenuse side in a right-angled triangle is equal to the sum of the squares of the other two sides. Perpendicular, Base, and Hypotenuse are the names of this triangle's three sides.angle of semicircle is always be 90° .
18² = 7.1² + x²
324 = 50.41 + x²
x² = 324 - 50.41
= 273.59
x = √ 273.59
x = 16.54
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what is 38.08÷23.80 i need help
Answer:
1.6
Step-by-step explanation:
i used calculator
Answer: 1.6
Step-by-step explanation:
HELP i need what is 4 divided by 120000 telll me plz in tried the calculator but my parents blocked the calculator on me so plz help me
Let p: A number is greater than 25.
Let q: A number is less than 35.
If pAq is true, then what could the number be? Select two options.
24
28
32
36
40
The numbers 28 and 32 fulfill the composite proposition.
What number does fulfil a proposition?In logics, propositions are structures that contains itself a true value, it may be but not exclusively equations and sentences. Composite propositions are the result of combining at least two propostions with operators. In this case, we have the following propostion: A number is greater than 25 and less than 35.
This kind of proposition is true if and only if each simple proposition is true. Therefore, the numbers 28 and 32 fulfill the composite proposition.
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Matt is measuring the length of bacterial cells. The first 8 cells that he measures are 3 micrometers. The next 12 cells that he measures are 2 micrometers. What is the average length in micrometers of the bacterial cells that Matt has looked at?
A parallelogram has a base of 12 inches in a height of 7 inches what is the area
Answer:
84 inch
Step-by-step explanation:
A=base*height
A=12*7
A=84 inch
A yo-yo manufacturer spends $1.25 per yo-yo and it costs $1280 to run the factory.
Answer:
bene cosa ti devo dire?
Step-by-step explanation:
Answer:
erm im i to late
Step-by-step explanation:
find the sum of all the integers from 1 to 1000
Answer:
500500
Step-by-step explanation:
intergers are whole numbers which are not fractions
CAN SOMEONE PLEASE HELP me with the correct answer!!!!! I need this done please help like please
Dana is making bean soup. The recipe she has makes 10 servings and uses
3/4
of a pound of beans. How many total pounds of beans does she need to make 5 servings of soup?
She has
1/16
of a pound of beans in one container and
1/4
of a pound of beans in another container. How many more pounds of beans does Dana need to make the 5 servings of soup? Show your work or explain your answer.
An automobile windshield wiper 11 inches long rotates through an angle of 60∘. If the rubber part of the blade covers only the last 10 inches of the wiper, find the area of the windshield cleaned by the windshield wiper. Answer exactly or round to the nearest tenth of a square inch
the area of the windshield, cleaned by the windshield wiper is mathematically given as 0.096inche^2
This is further explained below.
What is a windshield?The term "acute area of the windshield glazing" refers to the section of the windshield that measures eight and one-half inches by eleven inches and is located immediately in front of the driver's line of sight, as seen in the image.
Then, let's call the part of the windshield labeled "ABC" A.
\(A=\frac{1}{2} r^2 \theta\)
Now, substituting the given values we get,
\(\begin{aligned}&A=\frac{1}{2} r^2 \theta \\&A=\frac{1}{2} \times(7)^2 \times \frac{\pi}{180} \\\end{aligned}$$\)
A=0.4276
Then let the area of the windshield, ADE, be denoted by the letter A',
\(A^{\prime}=\frac{1}{2} r^2 \theta\)
Now, after replacing those values with the ones we were provided,
\(\begin{aligned}&A^{\prime}=\frac{1}{2} r^2 \theta \\&A^{\prime}=\frac{1}{2} \times(1)^2 \times 60 \times \frac{\pi}{180} \\&A^{\prime}=0.5236\end{aligned}\)
In conclusion, In order to calculate the area of the windshield, you need to take the difference between A and A'.
0.5236-0.4276=0.096
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answer this please!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
200
Step-by-step explanation:
\(a^{2}\) + \(b^{2}\) = \(c^{2}\)
\(120^{2}\) + \(160^{2}\) = \(c^{2}\)
14400 + 25600 = \(c^{2}\)
40000 = \(c^{2}\)
\(\sqrt{40000}\) = \(\sqrt{c^{2} }\)
200 = c
Jesus love you.
Which graph represents the function f(x) = 4[x]?
y
y
16
16
y
16
16
12
12
12
121
8
8
81
8
40
ای
09
4
2
123
OD
8
o
0
Answer:
b
Step-by-step explanation:
The graph which represent the function f ( x ) = 4 [ x ] is graph B
What is Equation of Graph of Polynomials?Graphs behave differently at various x-intercepts. Sometimes the graph will cross over the x-axis at an intercept. Other times the graph will touch the x-axis and bounce off.
Identify the even and odd multiplicities of the polynomial functions' zeros.
Using end behavior, turning points, intercepts, and the Intermediate Value Theorem, plot the graph of a polynomial function.
The graphs cross or are tangent to the x-axis at these x-values for zeros with even multiplicities. The graphs cross or intersect the x-axis at these x-values for zeros with odd multiplicities
Given data ,
Let the function be represented as f ( x )
Now , the value of f ( x ) is
f ( x ) = 4 [ x ]
And , function f(x) = 4[x] represents the greatest integer function, which returns the largest integer less than or equal to x
The graph of the greatest integer function consists of horizontal segments, with jumps at the integers. Since the function is multiplied by 4 in this case, the distance between the jumps will be 1/4 of the original distance.
Hence , the graph is Option B
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Please solve this
∫ (log(1 + x ^ 2))/((x + 1) ^ 2) dx
The final result of the integral is:
∫ (log(1 + x²) / (x + 1)²) dx = log(x + 1) - 2 (log(x + 1) / x) - 2Li(x) + C,
where Li(x) is the logarithmic integral function and C is the constant of integration.
We have,
To solve the integral ∫ (log(1 + x²) / (x + 1)²) dx, we can use the method of substitution.
Let's substitute u = x + 1, which implies du = dx. Making this substitution, the integral becomes:
∫ (log(1 + (u-1)²) / u²) du.
Expanding the numerator, we have:
∫ (log(1 + u² - 2u + 1) / u²) du
= ∫ (log(u² - 2u + 2) / u²) du.
Now, let's split the logarithm using the properties of logarithms:
∫ (log(u² - 2u + 2) - log(u²)) / u² du
= ∫ (log(u² - 2u + 2) / u²) du - ∫ (log(u²) / u²) du.
We can simplify the second integral:
∫ (log(u²) / u²) du = ∫ (2 log(u) / u²) du.
Using the power rule for integration, we can integrate both terms:
∫ (log(u² - 2u + 2) / u²) du = log(u² - 2u + 2) / u - 2 ∫ (log(u) / u³) du.
Now, let's focus on the second integral:
∫ (log(u) / u³) du.
This integral does not have a simple closed-form solution in terms of elementary functions.
It can be expressed in terms of a special function called the logarithmic integral, denoted as Li(x).
Therefore,
The final result of the integral is:
∫ (log(1 + x²) / (x + 1)²) dx = log(x + 1) - 2 (log(x + 1) / x) - 2Li(x) + C,
where Li(x) is the logarithmic integral function and C is the constant of integration.
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which of the following is the best estimate for 7/8
Answer:
0.875
Step-by-step explanation:
1/8 = 0.125
0.125 x 7 = 0.875
Answer: the answer is 1 because you are etimate
Step-by-step explanation:
Write the following expression using the fewest possible terms.
(−3x − 12) + (16 + 8x)
5x + 4
5x + (−4)
11x + 28
11x + (−4)
Therefore option a) 5x+4 is the simplified form of the equation.
What is equation?Equations in mathematics are logical statements with two algebraic expressions on either side of the equals (=) symbol. The equality of the expressions on the left and right in relation to one another is shown. LHS = RHS (left hand side = right hand side) is the first step in any mathematical equation. You can solve equations to determine a variable's or quantity's value. It is not an equation if the statement lacks the "equal to" sign. It will be thought of as a phrase. Later on in this essay, there will be an explanation of the distinctions between an expression and an equation.
Here,
Given:
=>(−3x − 12) + (16 + 8x)
=> -3x-12+16+8x
=> 5x+4
So 5x+4 is the simplified form of the equation
Therefore option a) 5x+4 is the simplified form of the equation
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A carpenter is making a rectangular form for a concrete pad she wants the length of the path to be 11 feet more than the width of the bed the area of the concrete pad must be 80 ft.² write the quadratic equation that will be used to find the dimensions of the pad
Answer:
Length = 16 or -5 feet.
Width = 5 or -16 feet.
Step-by-step explanation:
Let the length of the concrete pad = l
Let the width of the concrete pad = w
Given the following data;
Area of concrete pad, a = 80ft²
Translating the word problem into an algebraic equation, we have;
\( l = 11 + w\)
We know that, the area of rectangle, A = length * width
\( A = l*w\)
Substituting the values into the equation, we have;
\( 80 = (11 + w)w\)
Expanding the bracket, we have;
\( 80 = 11w + w^{2}\)
\( w^{2} + 11w - 80 = 0\)
*Solving the quadratic equation by using factorization method*
\( w^{2} + 16w - 5w - 80 = 0\)
\( w(w + 16) - 5(w + 16) = 0\)
\( (w - 5)(w + 16) = 0 \)
Width, w = 5 feet or w = -16 feet.
Therefore, the width of the concrete pad is 5 feet or -16 feet.
To find its length, l;
\( l = 11 + w\)
When w = 5 feet
\( l = 11 + 5\)
Length, l = 16 feet
When w = - 16 feet
\( l = 11 + (-16)\)
\( l = 11 - 16\)
Length, l = -5 feet.
Hence, the dimensions of the concrete pad is 16 by 5 feet or -5 by -16 feet.