Answer:
Use the interactive to graph the line that goes through the points (–4,–2) and (2,0).
The point (a,1) lies on the line you graphed.
What is the value of a? IT IS 5
Step-by-step explanation:
"A trip to the Science Lab"
A street goes by the name, y=x+17. What is a parallel street to that one? (Write answer in slope-intercept form).
The street can be represented in slope intercept form as follows:
y = x + 4
How to find a street that is parallel?Linear equation can be represented in slope intercept form as follows:
y = mx + b
where
m = slopeb = y-interceptParallel lines have the same slope.
The street goes by the name y = x + 17.
The slope of the street is 1.
Therefore, the street parallel to that one should have the same slope.
The street can be represented in slope intercept form is as follows:
y = x + 4
learn more on parallel lines and slope intercept form equation here: https://brainly.com/question/15430030
#SPJ1
A snowball has a radius of 7cm. What is the volume of the snowball?
Answer:
The volume is 1436.8\(in^2\) .
Step-by-step explanation:
-To find the volume of a sphere, you need the formula:
\(V = \frac{4}{3} \pi r^3\)
-Use the radius for the formula:
\(V = \frac{4}{3} \pi 7^3\)
-Then, you solve:
\(V = \frac{4}{3} \pi 7^3\)
\(V = \frac{4}{3}\) × \(\pi\) × \(7^3\)
\(V = \frac{4}{3} \pi\) × \(343\)
\(V = \frac{1372}{3} \pi = 1436.755\)
-Round the answer to the nearest tenth:
\(V = 1436.8\)
So, therefore the volume is 1436.8\(in^2\) .
Answer:
The volume is 1436.8 .
Step-by-step explanation:
-To find the volume of a sphere, you need the formula:
-Use the radius for the formula:
-Then, you solve:
× ×
×
-Round the answer to the nearest tenth:
So, therefore the volume is 1436.8
FOR ∑ n=1
[infinity]
n 3
1
The sum to infinity of the function is -3/2
Calculating the sum to infinity of the functionfrom the question, we have the following parameters that can be used in our computation:
\(\sum\limits^{\infty}_{1} {3^n} \,\)
From the above sequence, we have
First term, a = 3
Common ratio, r = 3
The sum to infinity of the function is calculated as
Sum = a/(1 - r)
So, we have
Sum = 3/(1 - 3)
Evaluate
Sum = -3/2
Hence, the sum is -3/2
Read more about sequence at
https://brainly.com/question/30499691
#SPJ4
Question
Calculate the sum to infinity of the function for
\(\sum\limits^{\infty}_{1} {3^n} \,\)
Suppose the derivative of function f is
f'(x) =(x+1)^2(x-3)^5(x-6)^4
On what interval is f increasing?
The function f is increasing on the interval (6, ∞).
The function f will be increasing in the intervals where f'(x) > 0.
To find these intervals, we can examine the sign of each factor of f'(x), which is (x + 1)²(x - 3)⁵(x - 6)⁴.
We can analyze the sign of f(x) by considering the factors individually:
(x+1)²: This factor is always positive since it is the square of a real number.
(x - 3)⁵: This factor is positive when x>3 and negative when x< 3.
(x - 6)⁴: This factor is positive when x>6 and negative when x< 6.
We need to consider the overlapping regions of positivity for each factor.
When x>6, all three factors are positive, so f ′ (x) is positive.
When 3<x<6: In this interval, the factor (x+1)² is positive, but both (x−3)⁵ and (x−6)⁴ are negative.
Thus, f ′ (x) is negative.
When x<−1: In this interval, (x+1)² is negative, while (x−3)⁵ and (x−6)⁴ are positive.
Hence, f ′ (x) is negative.
Therefore, the function f(x) is increasing on the interval x>6.
To learn more on Functions click:
https://brainly.com/question/30721594
#SPJ4
which of the following is not correct? a. the slope of a line will be infinite for a horizontal line. b. the slope of a line will be a small positive number for a fairly flat upward-sloping line. c. the slope of a line will be a negative number for a downward-sloping line. d. the slope of a line will be a large positive number for a steep upward-sloping line.
The correct answer is B. The slope of a line will be a small positive number for a fairly flat upward-sloping line.
The slope of a line will be a small positive number for a fairly flat upward-sloping line. Slope measures the change in the y-value of a point on the line, divided by the change in the x-value. The formula for finding the slope is \(m = (y2 - y1) / (x2 - x1)\). A fairly flat upward-sloping line would have a positive slope, however it would be a small number since the line does not rise drastically. For example, if the x-values are 0 and 1 and the y-values are 1 and 2, then the slope would be m = (2 - 1) / (1 - 0) = 1, which is a small positive number.
Learn more about slope of a line here:
https://brainly.com/question/16180119
#SPJ4
Pat had a 12:30 pm appointment 72 miles from his office. If he averaged 48 mph for the trip and arrived ten minutes late, when did he leave his office? Show all your work and explain how you arrived at your answer.
Pat left the office at 10:50 am.
What is the relation between speed, distance, and time?
The relation between speed, distance, and time would be
distance = speed x time
We know that Pat had a 12:30 pm appointment 72 miles from his office, arrived ten minutes late, and averaged 48 mph for the trip. So we can set up the equation as:
distance = speed x time
72 = 48 x time
To solve for time, we divide both sides of the equation by 48:
time = distance / speed
time = 72 / 48
time = 1.5 hours
Since Pat arrived 10 minutes late, we need to subtract that 10 minutes from the time it took him to get to the appointment
12:30pm - 00:10 = 12:20 pm
Now, we have to subtract the time it took Pat to get to the appointment from the time he left the office
12:20 pm - 1.5 hours = 10:50 am
So Pat left the office at 10:50 am.
Hence, Pat left the office at 10:50 am.
To learn more about speed, distance, and time, visit:
https://brainly.com/question/26862717
#SPJ1
Tina and Gray each had the same length of string. Tina used
3
4
of her string.
Using eighths, what fraction of the length of the string will Gray need to use to match the amount Tina used?
Use the number line to help find your answer.
Answer:
6/8
Step-by-step explanation:
3/4 is equal to 6/8.
this composite figure is made of a parrallelogram, a square, and a triangle. what is the area of the figure
The area of the given figure is 144cm²
How to determine the area of the figure?The given figure is a composite figure composed of a parallelogram, a square, and a rectangle.
Get the area of the square
The area of the square?
Area = L²
Area of the square = 6² = 64cm²
Area of the triangle = 1/2 *6 * 10=30cm^2
Area of the triangle = 30cm²
Area of the second triangle=14cm^2
For the parallelogram:
Area of the parallelogram = Base * Height
Area of the parallelogram = 12 * 4
Area of the parallelogram = 36 cm²
Area of the figure = 64cm² + 30cm² + 36cm²+14cm^2
Area of the figure = 130cm²
Hence the area of the figure is 144 cm²
Learn more about the area of composite figures on https://brainly.com/question/30488703
#SPJ1
An automobile manufacturer would like to know what proportion of its customers are not satisfied with the service provided by the local dealer. The customer relations department will survey a random sample of customers and compute a 95% confidence interval for the proportion who are not satisfied.
(a) Past studies suggest that this proportion will be about 0.17. Find the sample size needed if the margin of the error of the confidence interval is to be about 0.015. (You will need a critical value accurate to at least 4 decimal places.) Sample size:
(b) Using the sample size above, when the sample is actually contacted, 25% of the sample say they are not satisfied. What is the margin of the error of the confidence interval? MoE:
The margin of error for the confidence interval is approximately 0.014, indicating that the estimate of the proportion of dissatisfied customers could be off by approximately plus or minus 0.014. This means that we can be 95% confident that the true proportion of dissatisfied customers falls within the range of the estimated proportion ± 0.014.
(a) To find the sample size needed to achieve a margin of error of about 0.015 with a 95% confidence level, we can use the formula for sample size calculation for proportions:
n = (Z^2 * p * (1-p)) / E^2
Where:
n = sample size
Z = critical value (corresponding to the desired confidence level)
p = estimated proportion of the population
E = margin of error
In this case, the estimated proportion of dissatisfied customers is 0.17, and the desired margin of error is 0.015. Since we want a 95% confidence level, the critical value can be obtained from a standard normal distribution table. The critical value for a 95% confidence level is approximately 1.96.
Plugging these values into the formula, we have:
n = (1.96^2 * 0.17 * (1-0.17)) / 0.015^2
n ≈ 1901.63
Therefore, the sample size needed is approximately 1902.
(b) If 25% of the sample say they are not satisfied, we can calculate the margin of error using the following formula:
MoE = Z * sqrt((p * (1-p)) / n)
Where:
MoE = margin of error
Z = critical value (corresponding to the desired confidence level)
p = proportion of the sample
n = sample size
Using the same critical value of 1.96 for a 95% confidence level and plugging in the values:
MoE = 1.96 * sqrt((0.25 * (1-0.25)) / 1902)
MoE ≈ 0.014
to learn more about margin of error click here:
brainly.com/question/11832344
#SPJ11
what is the difference between the number of points she needs to win and the number of points she had.
Answer:
the answer is a
Step-by-step explanation:
because3 im smart unlike you
Determine whether the sequence 1/117659, 1/16807, 1/2401...converges or diverges. If it converges, give the limit.
The sequence is a geometric sequence with a common ratio of 7. Since, the common ratio is greater than 1, the sequence diverges.
What is the sequence converges or diverges?A convergent series is a series whose partial sums tend to a specific number, also called a limit. A divergent series is a series whose partial sums, by contrast, don't approach a limit. Divergent series typically go to ∞, go to −∞, or don't approach one specific number.
The given sequence is 1/117659, 1/16807, 1/2401...
Here, common ratio is
1/16807 ÷ 1/117659
= 1/16807 × 117659/1
= 117659/16807
= 7
Now, 1/2401 ÷ 1/16807
= 1/2401 × 16807/1
= 16807/2401
= 7
Hence, the sequence is a geometric sequence with a common ratio of 7. Since, the common ratio is greater than 1, the sequence diverges.
Learn more about the the sequence converges or diverges here:
brainly.com/question/15415793.
#SPJ1
what is the acceleration at time 11.25 s?
The instantaneous acceleration at time t = 11.25 s is a = 8 m/s².
What is acceleration?
A definition of acceleration is the speed at which velocity varies with respect to time. Since acceleration has both a magnitude and a direction, it is a vector quantity. Additionally, it is the first derivative of velocity with respect to time or the second derivative of position with respect to time.
The graph for the acceleration points are given.
Instantaneous acceleration is defined as the ratio of change in velocity during a given time interval such that the time interval goes to zero.
From graph instantaneous acceleration at time 11.25s is 8 m/s².
Therefore, the value is obtained as a = 8 m/s².
To learn more about acceleration from the given link
https://brainly.com/question/460763
#SPJ4
in a systematic sampling study, if the sampling frame has 2,000 names and the desired sample size is 50, then the skip interval should be
The skip interval should be 40 if the sampling frame has 2000 names and the desired sample size is 50.
Systematic sampling is a type of sampling which uses the probability method where researchers select members of the group or population at a regular interval.
To determine the skip interval, it is necessary to first determine the sample size. Then the skip interval can be determined by dividing the total population by the target/desired sample size. Therefore;
skip interval = population / target sample size
Substituting the given values;
skip interval = 2000 / 50
skip interval = 40
Hence, the skip interval is calculated to be 40 if the frame has 2000 names and the desired sample size is 50.
To learn more about systematic sampling; click here:
https://brainly.com/question/14333907
#SPJ4
Write the perimeter of the triangle as a simplified polynomial. Then factor the polynomial.
Answer:
4x² + 29x + 7 = (4x + 1)(x + 7)
Step-by-step explanation:
Simplify the polynomial:Like terms are terms with same variable and same power.
Perimeter = sum of all the sides
= 3x² + 1 + 15x + 6 + x² + 14x
= 3x² + x² + 15x + 14x + 1 + 6
Combine like terms,
= 4x² + 29x + 7
Factorize:
Sum = 29
Product = 4*7 = 28
Factors = 1 , 28 {28 + 1 = 29 & 28*1 = 28}
Rewrite the middle term using the factors,
= 4x² + x + 28x + 7
= x(4x + 1) + 7(4x + 1)
= (4x + 1)(x + 7)
help me please help answer the question below Do not round
Answer:
0.1296
Step-by-step explanation:
0.6*0.6=0.36
0.6*0.36=0.216
0.6*0.216=0.1296
Dxfcv gnhbjmftvgyhgbyhgtyuvgyuibgiuguyvfgtyuik
Answer:
25.12 inches
Step-by-step explanation:
using maria’s new budget, if she wanted to buy a new tv that costs $420 and wanted to do it in 6 months, how much additional money must she cut from her expenses each month?
Maria must cut an additional $70 from her expenses each month in order to save enough money to buy a new TV that costs $420 in 6 months. By allocating this additional amount towards her savings goal, she will be able to reach her target within the desired timeframe. It's important for Maria to review her budget and identify areas where she can reduce expenses in order to make room for the additional savings. This could involve cutting back on discretionary spending, finding ways to save on daily expenses, or exploring opportunities to increase her income.
Maria must cut an additional $70 from her expenses each month.
To determine how much additional money Maria must cut from her expenses each month to afford a new TV that costs $420 in 6 months, we divide the total cost by the number of months.
Additional money per month = Total cost / Number of months
Additional money per month = $420 / 6
Additional money per month = $70
With careful planning and commitment to her budget, Maria can achieve her goal of purchasing a new TV without compromising her financial stability.
To know more about expenses , visit
https://brainly.com/question/14697297
#SPJ11
A floor plan of an apartment has a rectangular living room. Its length is 10 centimeters and its width is 4 centimeters. The scale of the floor plan diagram is 2 centimeters for every 1 meter. What is the actual area of the apartment's living room?
The actual area of the apartment's living room is 10 \(m^{2}\)
Given
Room is in the shape of a rectangle
Length of the room (L)= 10 cm
Width of the room (W) = 4 cm
Also the scale of floor plan is 2 cm for every 1 meter
Initially the are of the living room = area of rectangle
Area of the rectangle = length × width
= 10 × 40
= 40 \(cm^{2}\)
To find actual floor area we need to scale the dimensions
Since 2cm = 1 m
10cm = 5m and 4 cm = 2m
Now calculating the actual area
Area = length × width
= 5×2
=10 \(m^{2}\)
Hence the actual area of the living room is 10 \(m^{2}\)
Learn more about Rectangle at
https://brainly.com/question/15019502?referrer=searchResults
#SPJ1
use coordinates to find the length of a side
please help me
Answer:
4 - 1 =3
4 - 1 =3
So, a and b is 3
a square field has an area of 4823m²(show your work! )
Answer:
69.45 m to the nearest hundredth.
Step-by-step explanation:
I guees you want the length of one side.
A square has 4 sides of equal length and the area = s^2 where s = length of each side.
So the length of a side of a square of area 4823
= √(4823)
= 69.4478 m.
Solve for t: t - 2 = 10
Question 3 options:
t = 2
t = 8
t = 10
t = 12
Answer: t=12
Step-by-step explanation:
t-2=10
add 2 to both sides of the equation
t=12
Trevor bought 3 shirts that all cost the same amount. He also bought a jacket for $47.15. With the given information in the torn receipt, how much did each shirt cost?
Answer: See explanation
Step-by-step explanation:
Your question isn't complete but let me help out. The value of each shirt will be gotten by subtracting $47.15 from the total amount paid for the shirt and jacket. Let's say the total amount paid is $90.02
Since the jacket cost $47.15, the cost of the shirts will be:
= $90.02 - $47.15
= $42.87
We would now divide the coat if the three shirts by 3. This will be:
= $42.87 ÷ 3
= $14.29
A paint roller, shown below, is used for painting large surfaces.
2 in I
9 in
Figure not drawn to scale.
How many square inches does a single rotation of the paint roller cover? (Round to the nearest tenth of a square inch.)
56.5 in
113.1 in
59.7 in
66.0 in
Answer:cacir
Step-by-step explanation:
whats 2+2x (7/7)= to
Answer:
2+2x(7/7)= 0 (you do what's in the parenthesis first)
2+ 2x (1) =0 (then you multiply, and anything times 1 is itself)
2 + 2x= 0 (subtract 2 from both sides to get the x-term alone)
2x= -2 (divide both sides by 2 to get x isolated)
x= -1 (is your answer)
Put the following equation of a line into slope-intercept form, simplifying all fractions. 3x-5y= -30
Slope intercept form is y=mx+b. So let's use the given equation and turn it into this form.
\(3x-5y=-30\)
Move the -3x to the right side
\(-5y=-3x-30\)
Divide both sides by -5
\(y=\dfrac{3}{5}x+6\)
This should be your answer, let me know if you need any clarifications, thanks!
Select all of the values of x that are solutions to 17-7x> 3(10x-4) + 61.
-2
-4
-1
2
5
0
Answer: -2, -4, -1
Step-by-step explanation:
\(17-7x > 3(10x-4)+61\\\\17-7x > 30x-12+61\\\\17-7x > 30x+49\\\\-32 > 37x\\\\x < -\frac{32}{37}\)
So, the values of x are -2, -4, -1.
Need Help!
A line has a slope of 4 and goes through the point (5,−2). What is the equation of this line in Standard Form?
−4x+y=18
4x+y=−18
−4x+y=−18
−4x+y=−22
Answer:
-4x+y=-22
Step-by-step explanation:
-4x +y= -22 is the equation of this line in Standard Form .
What is in slope-intercept form?
Y = mx + b, which defines a line, is an equation's slope-intercept form.When a line is graphed, its slope, m, and its point of intersection with the y-axis, b, also known as the y-intercept, are shown.To find answers for x, y, m, and b, utilize slope intercept form.m = 4
the point = (5, -2)
the equation of this line
y - y₁ = m ( x - x₁)
y - ( -2 ) = 4 ( x - 5 )
y + 2 = 4( x - 5 )
y + 2 = 4x - 20
y = 4x - 20 - 2
y = 4x - 22
-4x +y= -22
Learn more about slope-intercept form
brainly.com/question/9682526
#SPJ2
factorise the following. x²-4
(x-2)(x+2) is factorize is given eq
c = 4.95+1.25 with C = total shipping cost and n = number of calculators in a box
Suppose that 50% of the subscribers of a cable television company watch the shopping channel at least once a week. The cable company is trying to decide whether to replace this channel with a new local station. A survey of 100 subscribers will be undertaken. The cable company has decided to keep the shopping channel if the sample proportion is greater than 0.585. What is the approximate probability that the cable company will keep the shopping channel, even though the true proportion who watch it is only .50? (Round the answer to four decimal places.)
Answer:
The probability is \(P( p > 0.585) = 0.044565 \)
Step-by-step explanation:
From the question we are told that
The population proportion is p = 0.50
The sample size is n = 100
Gnerally the mean of the sampling distribution is
\(\mu_x = 0.50\)
Generally the standard deviation of the sampling distribution is
\(\sigma = \sqrt{\frac{p(1- p)}{n} }\)
=> \(\sigma = \sqrt{\frac{0.5 (1- 0.5)}{100} }\)
=> \(\sigma =0.05\)
Generally the approximate probability that the cable company will keep the shopping channel
\(P( p > 0.585) = P(\frac{p- \mu_{x}}{\sigma } > \frac{0.585 - 0.50}{0.05} )\)
Generally \(\frac{p- \mu_{x}}{\sigma } = Z (The \ standardized \ value \ of p )\)
=> \(P( p > 0.585) = P(Z > 1.7 )\)
From the z-table the probability of (Z > 1.7 ) is
\(P(Z > 1.7 ) = 0.044565\)
So \(P( p > 0.585) = 0.044565 \)