Answer:
1.7 = 3(x - 0.4)
Step-by-step explanation:
0.4 x 8 = 3.2
3(3.2 - 0.4) = 8.9 metres
The equation in point-slope form that models the situation is y - 1.7 = 0.4(x - 3) and the height of the tree after 8 years is 3.7 meters.
What is Slope?Slope of a line is the ratio of the change in y coordinates to the change in the x coordinates of two points given.
The given situation can be expressed as the linear equation.
Equation in point slope form is,
y - y' = m (x - x')
where m is the slope and (x', y') is a point on the line.
Rate of the growth of the tree = 0.4 meters per year.
So, slope = 0.4
We have a point (3, 1.7).
Substituting to the point slope form,
y - 1.7 = 0.4(x - 3), which is the required form.
After 8 years,
y - 1.7 = 0.4(8 - 3)
y = 3.7 meters
Hence the equation is y - 1.7 = 0.4(x - 3) and the height of the tree after 8 years is 3.7 meters.
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the the area of a rectangle with perimeter 40 cm and 75 cm square find the length and width of the rectangle
Answer: 15cm and 5cm
Step-by-step explanation:
A rectangle's area is the product of the length and width
Given length x and width y, 2x+2y = 40 and x*y = 75.
Verifying my answer:
2(15)+2(5) = 40
30+10 = 40
40 = 40
15*5 = 75
75= 75
This is a week late so I hope this helped.
The length and the width of the rectangle are 15cm and 5cm respectively
How to find the length and width of the rectangle?The given parameters are:
Area (A) = 75
Perimeter (P) = 40
The area of a rectangle is LW, while the perimeter is 2(L + W)
So, we have:
LW = 75
2(L + W) = 40
Divide by 2
L + W = 20
Make L the subject
L = 20 - W
Substitute L = 20 - W in LW = 75
(20 - W)W = 75
Expand
20W - W^2 = 75
Rewrite as:
W^2 - 20W + 75 = 0
Expand
W^2 - 15W - 5W + 75 = 0
Factorize
(W - 15)(W -5) = 0
Split
W - 15 = 0 or W - 5 = 0
Solve for W
W = 15 or W = 5
Recall that:
L= 20 - W
So, we have
L = 20 - 15 or L = 20 - 5
This gives
L = 5 or L = 15
Hence, the length and the width of the rectangle are 15cm and 5cm respectively
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If the sum of first n terms of an AP is 3n² + 5n find the AP.
Let a (n) denote the n-th term in the progression. Consecutive terms in the sequence differ by a fixed constant - call it c - such that
a (n) = a (n - 1) + c
Let a = a (1) be the first term in the sequence. We can solve for a (n) in terms of a alone:
a (n) = a (n - 1) + c
a (n) = (a (n - 2) + c) + c = a (n - 2) + 2c
a (n) = (a (n - 3) + c) + c = a (n - 3) + 3c
and so on, down to
a (n) = a + (n - 1) c
The sum of the first n terms is then
\(\displaystyle\sum_{k=1}^n a(k)=\sum_{k=1}^n(a+(k-1)c)=a\sum_{k=1}^n1+c\sum_{k=1}^n(k-1)=an+\frac{cn(n-1)}2=\frac c2n^2+\left(a-\frac c2\right)n\)
Since this is equal to 3n ^2 + 5n, it follows that
c/2 = 3 => c = 6
a - c/2 = 5 => a = 8
So the sequence is
a (n) = 8 + (n - 1) 6 = 6n + 2
Suppose that $4500 is placed in an account that pays 19% interest compounded each year.
Assume that no withdrawals are made from the account.
(a) Find the amount in the account at the end of 1 year.
(b) Find the amount in the account at the end of 2 years.
Answer:
a) 5355
b) 6372.45
Step-by-step explanation:
4500 * 1.19 = 5355
5355 * 1.19 = 6372.45
What fraction is from least to greatest 7/8, 5/11, 2/3
Answer:
5/11, 2/3, 7/8
Step-by-step explanation:
11. What is the unknown number in
Sequence 2 in the chart?
Sequence Number
Sequence 1
Sequence 2
A 126
B 127
c 147
D 154
2 3 5
7
14 21 35 49
?
1
7
21 42 63 105
The missing number in Sequence 2 is 780.
To find the missing number in Sequence 2, let's analyze the pattern:
In Sequence 1, the numbers increase by 1 each time: 126, 127, 128, 129, ...
In Sequence 2, the numbers seem to follow a pattern where each number is obtained by multiplying the corresponding number in Sequence 1 by a certain factor:
2 x 126 = 252
3 x 127 = 381
4 x 128 = 512
5 x 129 = 645
...
Looking at this pattern, we can see that the missing number in Sequence 2 should be:
6 x 130 = 780
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On Saturday, 45% of the music Brianna listened to was country songs. She listened to 27 country songs on Saturday. How many songs did Brianna listen to on Satuday?
Answer:
60 songs.
Step-by-step explanation:
The percentages there are an equal sign so
0.45x=27
x=60
So Brianna listened to 60 songs!
The triangular arrangement of numbers shown is known as Pascal's triangle. Use inductive reasoning to find the 6 missing numbers.
Answer:
1 5 10 10 5 1
Step-by-step explanation:
The complete question has been attached as an image.
Looking at the triangle, we see a pattern. The first level we have 1, in the next level we have 1 1, the next evel we have 1 2 1, the next level we have 1 3 3 1 and so on. From here, we see that to get the numbers of the next level, we have to write 1 as the first number, then add 1 to the next number after it in the previous level to get the second number in the next level then add the second number of the previous level to the next number beside it to get the third number in the next level and so on until you get to the last number before 1 in the previous level, add that number to 1 to get the second to the last number in the next level and finally put 1 as the last number in the next level. Now, we have
1 4 6 4 1
1 5 10 10 5 1
And that is the required set of numbers.
ANSWER FAST!!!
1) which family member ate the most pizza?
2) if the company offered an extra large pizza, how could you find out how much of it a person ate if they cut their own piece with a central angle of M?
1. Andy's oldest daughter ate the most pizza. She ate the entire personal pizza, which is 10 inches in diameter
2. If the company offered an extra large pizza, you could find out how much of it a person ate if they cut their own piece with a central angle of M°
How to calculate the valueAndy's oldest daughter ate the most pizza. She ate the entire personal pizza, which is 10 inches in diameter. This means that she ate 100% of the pizza. Andy's wife ate 2/6 of the small pizza, which is 12 inches in diameter. This means that she ate 1/3 of the pizza. Andy's younger daughter ate 1/8 of the medium pizza, which is 14 inches in diameter.
This means that she ate 12.5% of the pizza. Andy cut himself a piece that had a central angle of 180° from the large pizza, which is 16 inches in diameter. This means that he ate 50% of the pizza.
The least amount of pizza was eaten by Andy's younger daughter. She only ate 1/8 of the medium pizza.
2. If the company offered an extra large pizza, you could find out how much of it a person ate if they cut their own piece with a central angle of M° by using the following formula:
Percentage of pizza eaten = (M° / 360°) * 100%
For example, if a person cut themselves a piece of an extra large pizza with a central angle of 180°, they would have eaten 50% of the pizza.
Percentage of pizza eaten = (180° / 360°) * 100% = 50%
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work out sues total pay
Sue's total pay for the year given the salary, bonus and share of profit is £38,110.
What is the total pay?Sue's total pay for the year is a function of the salary, the share of the profit that she earns and the bonus.
Salary for the year = monthly salary x number of months in a year
£1410 x 12 = £16,920
The next step is to determine the profit last year
Profit = total revenue - total cost
£549,000 - £473,500 = £75,500
Now determine the share of profit that Sue would earn.
Share of profit = 26% x £75,500
0.26 x £75,500 = £19,630
Now determine the total bonus she would earn : 4 x £390 = £1560
Total salary = £1560 + £19,630 + £16,920 = £38,110
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One taxi company
charges $5 just to
stop, and $0.8 per
mile after that.
Another taxi company
charges $11 just to
stop, and $0.6 per
mile after that.
For _____miles the
two companies will
cost the same.
Find the area of the trapezoid at the right. the left side is 5cm, the the top is 6cm, the side is 5.4cm, and the bottom on the right is 2cm.
The area of a trapezoid and the given measurements, we found that the area of the trapezoid is 15.64 square centimeters.
To find the area of the trapezoid, we can use the formula:
Area = (b1 + b2)h / 2
where b1 and b2 are the lengths of the parallel sides, and h is the height (or distance between the parallel sides).
In this case, the left side (b1) is 5cm, the right side (b2) is 2cm, the top is 6cm, and the height is the distance between the top and bottom sides, which can be calculated using the Pythagorean theorem as:
h =\(sqrt(5.4^2 - (6-2)^2) = sqrt(20.16)\) = 4.49cm (rounded to two decimal places)
Substituting these values into the formula, we get:
Area = (5 + 2) * 4.49 / 2 = 15.64 square centimeters (rounded to two decimal places)
Therefore, the area of the trapezoid is 15.64 square centimeters.
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what is -1/2(7z+4)+1/5(5z-16)
Answer:
\( - \frac{1}{10} \times (25z + 52)\)
Step-by-step explanation:
-1/2 (7z + 4) + 1/5 (5z - 16)
-1/10 × (5(7z + 4) - 2 (5z - 16))
-1/10 × (35z + 20 - 10z + 32)
= -1/10 × (25z + 52)
two consecutive even numbers whoes sum is 126
Since an even number can be represented as:
\(2n\)With n a natural number, and the next even number is:
\(2n+2\)Set the sum of both even numbers equal to 126:
\((2n)+(2n+2)=126\)Solve for n:
\(\begin{gathered} \Rightarrow2n+2n+2=126 \\ \Rightarrow4n+2=126 \\ \Rightarrow4n=126-2 \\ \Rightarrow4n=124 \\ \Rightarrow n=\frac{124}{4} \\ \Rightarrow n=31 \end{gathered}\)Substitute back n=31 into the expressions for the even numbers to find them:
\(\begin{gathered} 2(31)=62 \\ 2(31)+2=64 \end{gathered}\)Therefore, the two consecutive even numbers whose sum is 126, are 62 and 64.
Question 5 of 10
Which of the following graphs represents the equation y- 4 = 3(x - 1)?
А
B
C
5+(2,5)
5
(-1,2)
P(1,4
(1,2)
/(2, 1)
.5
.
5
15
1.2.1)
(1.-2)
(-1.-2)
-5
Answer:
a
Step-by-step explanation:
What is the lateral surface area of a right hexagonal prism whose base is a regular hexagon with sides measuring 8 inches long and altitude measuring 6 inches tall?
Answer:
288 square inches
Step-by-step explanation:
Assuming your "altitude" is the height of the prism--the distance between bases, the lateral area is the sum of the areas of the six rectangular faces. Each of those has an area of ...
(8 in)(6 in) = 48 in^2
so the 6 of them will have an area of ...
lateral area = 6×48 in^2 = 288 in^2
_____
Comment on nomenclature
'Altitude' is usually associated with the height of a triangle. In the case of a regular polygon, the 'altitude' of a triangular section of the polygon is called the 'apothem', and is often designated using the letter 'a'. If the polygon is regular, the apothem can be calculated from the side length and the number of sides, but it is often given in problems involving area, perimeter, and/or volume.
The distance between the parallel bases of a prism is often referred to as the prism height or length. The use of the word 'altitude' is confusing in this case.
Since the lateral area is the product of the perimeter of the base and the distance between bases, we have to assume that your 'altitude' refers to the distance between bases. Otherwise, there is not sufficient information to work the problem.
Use the horizontal number line to find the distance between -5 and 0.
1
-5 -4 -3 -2 -1 0
1
2 3 4
5
The distance between -5 and O is
<
The absolute value of -5 is
Answer:
I think +5 or 5
Answer:
there both 5
Step-by-step explanation: did the question on edg
Find the following for the function f(x) = 4x² + 4x-3.
(a) f(0)
(b) f(4)
(e)-f(x)
(f) f(x+1)
(a) f(0) = -3 (Simplify your answer.)
(b) f(4)=
(Simplify your answer.)
(c) f(-4)
(g) f(3x)
(d) f(-x)
(h) f(x+h)
The values of functions are
(a) f(0) = -3. (b) f(4) = 77.
(c) f(-4) = 45. (d) -f(x) = -4x² - 4x + 3.
(e) f(x+1) = 4x² + 12x + 1. (f) f(-x) = 4x² - 4x - 3.
(g) f(3x) = 36x² + 12x - 3.
(h) f(x+h) = 4x² + 8xh + 4h² + 4x + 4h - 3.
Evaluating functions:The concept used in this question is evaluating a polynomial function for different values of the input variable. To do this, we substitute the given value into the function in place of the input variable and simplify the resulting expression.
Here we have
The function f(x) = 4x² + 4x-3.
To find the values of functions can be done by replacing x
(a) f(0) = 4(0)² + 4(0) - 3 = 0 + 0 - 3 = -3
(b) f(4) = 4(4)² + 4(4) - 3 = 64 + 16 - 3 = 77
(c) f(-4) = 4(-4)² + 4(-4) - 3 = 64 - 16 - 3 = 45
(d) -f(x) = -[4x² + 4x - 3] = -4x² - 4x + 3.
(e) f(x+1) = 4(x+1)² + 4(x+1) - 3 = 4(x² + 2x + 1) + 4x + 4 - 3 = 4x² + 12x + 1.
(f) f(-x) = 4(-x)² + 4(-x) - 3 = 4x² - 4x - 3.
(g) f(3x) = 4(3x)² + 4(3x) - 3 = 36x² + 12x - 3.
(h) f(x+h) = 4(x+h)² + 4(x+h) - 3 = 4(x² + 2xh + h²) + 4x + 4h - 3
= 4x² + 8xh + 4h² + 4x + 4h - 3.
Hence,
The values of functions are
(a) f(0) = -3. (b) f(4) = 77.
(c) f(-4) = 45. (d) -f(x) = -4x² - 4x + 3.
(e) f(x+1) = 4x² + 12x + 1. (f) f(-x) = 4x² - 4x - 3.
(g) f(3x) = 36x² + 12x - 3.
(h) f(x+h) = 4x² + 8xh + 4h² + 4x + 4h - 3.
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Write the equation of the line that passes through the points (2,-6)and (-2,-4).Write the equation in slope intercept form
Evaluate the expression when = =− 5 5 , and . 8 3 x y 10. x + y 11. y x − 12. − + 2x y 13. 3x + y
The numeric value of the expression -b + 8x when b = 5 and x = -6 is given as follows:
-53.
How to find the numeric value of a function or of an expression?To find the numeric value of a function or of an expression, we replace each instance of the variable/variables in the function or in the expression by the value/values at which we want to find the numeric value.
In this problem, the expression is given as follows:
-b + 8x.
The values at which the numeric value is to be found are:
b = 5, x = -6.
Hence:
The lone instance of b is replaced by 5.The lone instance of x is replaced by -6.Thus the numeric value of the expression is obtained as follows:
-5 + 8(-6) = -5 - 48 = -53.
Missing InformationThe problem is given by the image at the end of the answer.
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To solve a(b + c) = d for a in 1 step:
Answer:
a = \(\frac{d}{b+c}\)
Step-by-step explanation:
a(b + c) = d
isolate a by dividing both sides by b + c
a = \(\frac{d}{b+c}\)
find the product of 5 - 4 7/12
Answer: dont know
Step-by-step explanation:
please please help last text then finals l give brainliest
1. The x - intercepts of the parabola are
x = 2.5 s and x = 7.5 s2. The meaning of the x-intercepts are the plane takes of at x = 2.5 s and lands at x = 7.5 s
3. The vertex of the parabola is at (5, 80).
What is a parabola?A parabola is a curved shape
1. Given the parabola above, to find the x - intercepts, we proceed as follows.
The x-intercepts are the points at which the graph cuts the x-axis.
They are
x = 2.5 s and x = 7.5 s2. The meaning of the x-intercepts in this problem are the points where the plane takes off and lands on the ground.
The plane takes of at x = 2.5 s and lands at x = 7.5 s
3. The vertex is the maximum point on the graph.
So, we see that the vertex is at x = 5 s and y = 80 ft
So, the vertex is at (5, 80).
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Find the value of x such that the line containing (1,2) and (5,3) is perpendicular to the line containing (x,4) and (3,0)
The value of x that makes the line containing (1,2) and (5,3) perpendicular to the line containing (x,4) and (3,0) is x = 2.
To determine the value of x such that the line containing (1,2) and (5,3) is perpendicular to the line containing (x,4) and (3,0), we need to find the slope of both lines and apply the concept of perpendicular lines.
The slope of a line can be found using the formula:
slope = (change in y) / (change in x)
For the line containing (1,2) and (5,3), the slope is:
slope1 = (3 - 2) / (5 - 1) = 1 / 4
To find the slope of the line containing (x,4) and (3,0), we use the same formula:
slope2 = (0 - 4) / (3 - x) = -4 / (3 - x)
Perpendicular lines have slopes that are negative reciprocals of each other. In other words, if the slope of one line is m, then the slope of a line perpendicular to it is -1/m.
So, we can set up the equation:
-1 / (1/4) = -4 / (3 - x)
Simplifying this equation:
-4 = -4 / (3 - x)
To remove the fraction, we can multiply both sides by (3 - x):
-4(3 - x) = -4
Expanding and simplifying:
-12 + 4x = -4
Adding 12 to both sides:
4x = 8
Dividing both sides by 4:
x = 2
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which expressions are equivalent to (7^3)^5*7^4
Select each correct answer
Answer:
the correct answer is B and E
Step-by-step explanation:
Fraser scores 43% in a spelling test. What percentage did he get wrong?
Answer:
57% incorrect
Step-by-step explanation:
100- 43= 57. Assuming that the test is out of 100%, he got 57% of the test incorrect
____times 10=662.2
____times 100=403
____times 1000=108
Answer:
1. 66.22
2. 4.03
3. 0.108
Step-by-step explanation:
divide the answers by the other numbers (10,100,1000)
662.2 ÷ 10 = 66.22
403 ÷ 100 = 4.03
108 ÷ 1000 =0.108
~R3V0
Leah is looking to take out a 30-year mortgage from a bank offering a monthly interest rate of 0.325% Using the formula below, determine the maximum amount Leah can borrow, to the nearest dollar, if the highest monthly payment she can afford is $900.
M=Pr/(1-(1+r)^-n)
M= the monthly payment
P= the amount owed
r= the interest rate per month
n= the number of payments
Answer:
\(P=\$276646.153\)
Step-by-step explanation:
Time \(T=30years\)
Rate \(r=0.325\%\)
Payment per month \(P=\$ 900\)
Generally the equation for Principle is mathematically given by
\(M=\frac{P r}{1-(1+r)^{-n}}\)
\(900=\frac{P \frac{0.325}{100}}{1-(1+( \frac{0.325}{100}))^{- 30*12}}\)
\(P=\frac{900*100*0.99}{0.325}\)
\(P=\$276646.153\)
grayson lives and works in indiana, which has a flat state income tax of 3.4% of his annual salary is 49,255$ and he gets paid once a month, how much is withheld from his gross income for state income tax each pay period
Answer:
Step-by-step explanation:
49255-1674.67=47580.33
solve it and show full calculus.
thank you!
Answer:
Hi
Please mark brainliest ❣️
Thanks
Step-by-step explanation:
The answer is NO
Reason
x= 2 y= 1
Now input in the first inequality
y≤ -x + 4
1 ≤ -2 +4
1≤ 2 i.e 1 is less than two
Next inequality
y≤ x +1
1 ≤ 2 + 1
1≤ 3 i.e 1 is less than 3
But 1 is not equal to 3 and also not equal to 2
Hence our answer is NO
3/17 as a percentage
Answer:
3/17×100= approximately 17.6
Step-by-step explanation:
if you have 1,2,4,5,10.20,25,50, you'll multiply both sides by a number that this number when you multiply it by the denominator it will be 100
if any other numbers you can multiply immediately by 100