The ratio of iphones to Galaxy phones in a school is 3:2. If there is a total of 955 phones in the school, how many are there of each?
Answer:
Galaxy phones = 383
Iphones=573
Use the Midpoint Rule with \(n=5\) to estimate the volume obtained by rotating about the y-axis the region under the curve \(y=\sqrt{1+x^3}\), \(0\leq x\leq 1\).
To estimate the volume using the Midpoint Rule with \(\displaystyle n=5\), we need to divide the interval \(\displaystyle 0\leq x\leq 1\) into \(\displaystyle n\) subintervals of equal width. Since \(\displaystyle n=5\), each subinterval will have a width of \(\displaystyle \Delta x=\frac{1-0}{5}=\frac{1}{5}\).
Now, let's calculate the volume using the Midpoint Rule. The formula for the volume obtained by rotating about the y-axis is:
\(\displaystyle V\approx 2\pi \sum _{i=1}^{n}y_{i}\Delta x\)
where \(\displaystyle y_{i}\) represents the value of the function \(\displaystyle y=\sqrt{1+x^{3}}\) evaluated at the midpoint of each subinterval.
First, let's find the midpoints of the subintervals. Since the width of each subinterval is \(\displaystyle \Delta x=\frac{1}{5}\), the midpoint of the \(\displaystyle i\)-th subinterval is given by:
\(\displaystyle x_{i}=\frac{\Delta x}{2}+\left( i-\frac{1}{2}\right) \Delta x=\frac{1}{10}+\left( i-\frac{1}{2}\right) \frac{1}{5}\)
Substituting \(\displaystyle x_{i}\) into the function \(\displaystyle y=\sqrt{1+x^{3}}\), we obtain:
\(\displaystyle y_{i}=\sqrt{1+\left( \frac{1}{10}+\left( i-\frac{1}{2}\right) \frac{1}{5}\right) ^{3}}\)
Now, we can calculate the approximate volume using the Midpoint Rule:
\(\displaystyle V\approx 2\pi \sum _{i=1}^{5}y_{i}\Delta x\)
Substituting the values of \(\displaystyle y_{i}\) and \(\displaystyle \Delta x\) into the formula, we can evaluate the sum and compute the estimated volume.
\(\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}\)
♥️ \(\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)
I need some help for this and the graph won’t let you use decimals as the answer. Tip: 1/3 = 0.3
.
Answer:
\(\large\begin{array}{|c|c|}\cline{1-2}x&y\\\cline{1-2}6&2\\\cline{1-2}12&4\\\cline{1-2}18&6\\\cline{1-2}\end{array}\)
See attachment for the graph of the equation.
Step-by-step explanation:
Given equation:
\(y=\dfrac{1}{3}x\)
To complete the table, find the corresponding values of y by substituting each given value of x into the equation.
\(x=6 \implies y=\dfrac{1}{3}(6)=\dfrac{6}{3}=2\)
\(x=12 \implies y=\dfrac{1}{3}(12)=\dfrac{12}{3}=4\)
\(x=18 \implies y=\dfrac{1}{3}(18)=\dfrac{18}{3}=6\)
Therefore the completed table is:
\(\large\begin{array}{|c|c|}\cline{1-2}x&y\\\cline{1-2}6&2\\\cline{1-2}12&4\\\cline{1-2}18&6\\\cline{1-2}\end{array}\)
To graph the equation, plot the ordered pairs on the given coordinate plane:
(6, 2)(12, 4)(18, 6)Draw a straight line through the points. (See attachment).
Triangle NGM is reflected across the x-axis, and is dilated by a factor of
\(2 \frac{1}{2} \)
what are the coordinates of vertices N'G'M'
The coordinates of vertices N'G'M' are N'(-10, -15), M'(-15, -5) and G'(-5, -10).
From the given graph, N(-4, 6), M(-6, 2) and G(-2, 4).
Scale factor = \(2\frac{1}{2}\)
= 2.5
The reflection of point (x, y) across the x-axis is (x, -y).
Here, N(-4, 6)→(-4, -6)
M(-6, 2)→(-6, -2)
G(-2, 4)→(-2, -4)
Now, with scale factor 2.5, we get
(-4, -6)→2.5(-4, -6)→N'(-10, -15)
(-6, -2)→2.5(-6, -2)→M'(-15, -5)
(-2, -4)→2.5(-2, -4)→G'(-5, -10)
Therefore, the coordinates of vertices N'G'M' are N'(-10, -15), M'(-15, -5) and G'(-5, -10).
To learn more about the reflection over x-axis visit:
https://brainly.com/question/15175017.
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THIS IS VERY ERGENT PLEASE HURRY
Answer:
96 - 3 would be 93 so i'd assume the percent change is 3%
Step-by-step explanation:
Just my head talking
Answer:
-3.125%
Step-by-step explanation:
\(\frac{(V^{2} -V^{2} )}{|V1|} x 100\)
What is the smallest possible integer value for n if 1/n < 0.3?
what is the slope please answer correctly
Answer:
-2
Step-by-step explanation:
It is rise over run so it goes right three and down 6, so it would be 6/3 which is 2. Because of the way it is slanted it is negative so it is -2.
Answer:
m = \(\frac{2}{1}\)
Step-by-step explanation:
\(\frac{rise}{run}\) = \(\frac{6}{3}\) = \(\frac{2}{1}\)
Find the value of k.
Answer:
96 degrees
Step-by-step explanation:
180 - 84 = 96
96 + 84 = 180
Please answer this question, I will mark brainlest
Answer:
B: 12
Step-by-step explanation:
length of one side =150
length of one path =12.5
Number of patches= 150 / 12.5
Number of patches = 12
hope it helps
please mark me as brainliest
Matthew deposited $900 into a certificate of deposit with a rate of 1.5% for 1 year. How much money did he have in the account after 6 months?
Answer:
$13.50
Step-by-step explanation:
I used a cualculater plz mark brainliest.
need help fast plssssssss!!!!!!!
Answer: 2.4x-4.4
Step-by-step explanation:
The Answer to this question is: 2.4x-4.4
Write a problem you can solve using the fractions 5/8 and 1 2/7. Explain how you can solve by simplifying a complex fraction. Show your work.
PLS HELP!! I WILL GIVE BRAINLY!
Answer:
5/8 + 9/7 +107/56
Step-by-step explanation:
5/8+9/7=5x7/8x7+ 9x8/7x8=35/56 + 72/56= 35+52/56=107/56
The simplified version of this would be 1 51/56
PLEASE MARK AS BRAINLIEST!!!!!
The sum of the two given fractions is 107/56.
The given fractions are 5/8 and 1 2/7.
We need to find the sum of given fractions.
What is the sum of the fractions?When the denominators are different, the fractions are called, unlike fractions. In such fractions, the first step is to convert them to like fractions so that the denominators become common. This is done by finding the least common multiple (LCM) of the denominators.
Now, we can write 1 2/7 as 9/7.
So, 5/8 + 9/7
Here, LCM of 8 and 7 is 56
Then, 35/56 + 72/56
=(35+72)/56
=107/56
Therefore, the sum of the two given fractions is 107/56.
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what value of x makes this equation true -(x+3)=2(x-3)
A. 0
B. 1
C. 2
D. 3
Answer:
To solve the equation -(x + 3) = 2(x - 3) for x, we can follow these steps:
Step 1: Distribute the negative sign on the left side of the equation:
-(x + 3) = 2(x - 3)
=> -x - 3 = 2(x - 3) (using the distributive property)
Step 2: Expand the right side of the equation:
-x - 3 = 2x - 6
Step 3: Add x to both sides of the equation to isolate the x term on one side:
-x + x - 3 = 2x + x - 6
=> -3 = 3x - 6
Step 4: Add 6 to both sides of the equation:
-3 + 6 = 3x - 6 + 6
=> 3 = 3x
Step 5: Divide both sides of the equation by 3 to solve for x:
3/3 = 3x/3
=> 1 = x
So, the correct value of x that makes the equation true is B. 1.
PLEASE MARK BRAILYISTT :D
Answer:
B, one
Step-by-step explanation:
In order to solve this, you can solve the equation. First, you can use the distributive property to get -x-3=2x-6. If you make the variables on one side and the constants on the other, you will get -3x-3=-6. This can further simplify to -3x=-6. Divide both sides by -3 to get that x=1. Then, the correct answer is B.
(HELP ASAP)
Using all of the sources,which statements best explain how specialization affected the economic development of regions in the United States?
Select the THREE correct answers.
A: The west became a major supplier of manufactured goods for Northeast.
B: The Midwest became a major grain-growing region of the United States.
C: the north became dependent on workers who migrated from the South.
D: The south hat to import most of Ts food to feed its growing population.
E: The south began to produce more cotton than any other region
F: The northeast became a center for manufacturing and industry.
G: The north and south produce similar crops and goods.
Answer:
Whatever you think Hot shot, We don't have the article!!
Step-by-step explanation:
Dear ???,
Re-read and find out your ASAP answer yourself,
Thank you,
????
act like the time is 5:15 add 45 minutes to that now what time is it?
Answer:
6:00
Step-by-step explanation: N/A
An image of a rhombus is shown.
a rhombus with a base of 18 centimeters and a height of 15.5 centimeters
What is the area of the rhombus?
16.75 cm2
33.5 cm2
139.5 cm2
279 cm2
Formula used,
Area of rhombus = Base × height
Substituting the values,
\( \longrightarrow\)Area = 18 × 15.5
\( \longrightarrow\) Area = 279 cm²
Therefore, 279 cm² is the area of the rhombus .
Answer:
D) 279 cm²
Step-by-step explanation:
Area of a rhombus formula:
\(A=bh\)
This formula is also used for squares and rectangles.
So, we can substitute in our values such as:
A=(18)(15.5)
simplify
A=279
Now, add our label and units:
A=279 cm²
Hope this helps! :)
You have a pizza with diameter 12
2
3 in., and a square box that is 12.65 in. across. Write 12
2
3 as a decimal. Can you fit the pizza inside the box?
What is the decimal expansion for 12
2
3?
A.12.6
B.12.65
C.12.6
D.12.66
pls help me
Answer:
D is the right choice and no you cannot fit the pizza inside the box.
Step-by-step explanation:
D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.
Answer:
I believe the answer is D.
Step-by-step explanation:
Translate the sentence into an equation. Two less than the product of 5 and a number equals 9. Use the variable c for the unknown number.
Answer:
The equation is: \(5c-2=9\)
Step-by-step explanation:
Since 2 less than the product of 5 and a number c is equal to 9, it follows:
\(5c-2=9\)
Determine the Unit Rate
$1500 for 6 days
1025 pounds for 5 men
Answer:
$1500 divided by 6 = 250
1025 divided by 5 - 205
Step-by-step explanation:
Answer:
$250
205 pounds
Step-by-step explanation:
60.4= v-13.6
A 74
B 87.6
C 46
D 64
Answer:
74
Step-by-step explanation:
Add 13.6to both sides.
60.4+13.6=v
Simplify 60.4+13.6 to 74
74=v
Switch sides.
v=74
Remove the v and = and the answer is
74
Yvonne’s bakery makes blondies and brownies. ● Blondies are squares with 3 inch sides. ● Brownies are squares with 6 inch sides. ● The tray that displays the blondies and brownies has an area of 648 square inches and is completely full. If she has 4 rows of blondies and 4 rows of brownies, what fraction of the area of the tray, in square inches, is blondies?
Answer:
1/2 half of them are blondies
Step-by-step explanation:
Answer:
Step-by-step explanation:
the answer is 1/2 half of them are blondies
(CORRECT ANSWER GETS BRAINLIEST.)
Mrs. Brim made a chart to see how long it took her students to finish a test. Which statement below is a reasonable conclusion based upon the information in the histogram?
A.50% of the students took longer than 31 minutes to finish the test. B.The exact time it took the students to finish the test is not indicated. C.The boys in the class completed the test faster than the girls. D.The test was easy.
Answer:
Step-by-step explanation:
Based on the information in the histogram, a reasonable conclusion would be that the exact time it took the students to finish the test is not indicated. Therefore, option B is the correct answer.Mrs. Brim made a chart to see how long it took her students to finish a test. However, the chart or histogram only shows how many students took a certain amount of time to finish the test and not their exact finishing time. Therefore, it's not possible to determine how long each student took to finish the test accurately.
Hope this helps! :)
1. x\(x/-3\geq 12\)
2. \(2x/9-2\ \textgreater \ 10\)
Answer:
The solution to the inequality x/(-3) ≥ 12 is x ≤ -36.
The solution to the inequality 2x/9 - 2 > 12 is x > 63.
Choose two of the angles on ∆ABC, and locate the line segment between them. Draw a new line segment,DE , parallel to the line segment you located on ∆ABC. You can draw of any length and place it anywhere on the coordinate plane, but not on top of ∆ABC. From points D and E, create an angle of the same size as the angles you chose on ∆ABC. Then draw a ray from D and a ray from E through the angles such that the rays intersect. You should now have two angles that are congruent to the angles you chose on ∆ABC. Label the point of intersection of the two rays F, and draw ∆DEF by creating a polygon through points D, E, and F.
Answer:
The two triangles are attached below.
Step-by-step explanation:
Let the ∆ABC be an isosceles right angled triangle.
The two angles will be 45° each.
The triangle ABC is attached below.
Now construct the triangle DEF according to the given instructions.
The two triangles are attached below.
Which equation does not belong with the other three? Explain your reasoning.
a. Y=0. 5x-0. 2
b. 4x+3=y
c. Y=x^2+6
d. 3/4x+1/3=y
The equation that does not belong with the other three is option d, 3/4x+1/3=y.
The other three equations have a common pattern of having y as a function of x with a specific form of expression.
Equation a has a linear function with a slope of 0.5 and a y-intercept of -0.2.
Equation b represents a linear equation in slope-intercept form with a slope of 4 and y-intercept of 3.
Equation c is a quadratic equation with a leading coefficient of 1, which opens upwards and has a vertex at (-3, 6).
However, equation d has a fractional coefficient and does not have a specific pattern with the other three equations. Therefore, option d does not belong with the other three equations.
write an inequality for x is less than "-3"
what is the answer to -5 ( 4w +12) =15 make sure you write the answer as a decimal
Answer:
w= -3.75
Step-by-step explanation:
-5(4w+12) =15
-20w -60=15
-20w=75
w=-3.75
Answer:
w= -15/4 or w= -3.75
Step-by-step explanation:
math
My teacher put a note to help me in the conner please help me im confused
Answer:
x=3.75 i think
Step-by-step explanation:
30 x 150
4500 then 4500 / 1200 = 3.75
PLEASE HELP 13 INSTEAD OF FIVE POINTS!!!! I REALLY NEED HELP
Answer:
y = 3/7 x - 3
Step-by-step explanation:
The first number should be positive because the dots are slowly going up, not down. The first number also cannot be 7/3 because the slope of that would be over 2, and in this graph, the slope isn't even more than one. The last answer we have to eliminate is y = 3/7x + 3 because the +3 is the y-intercept, and in the graph, it doesn't touch the positive 3. So the answer is y = 3/7x - 3.
Need help ASAP
Will give BRAINLIEST
Step-by-step explanation: Surface area of triangular prism = 2A + PH.
Lateral surface of a triangular prism = Length × (a + b + c)
i hope it helps u :-)
Answer:
225 and 243.4
Step-by-step explanation:
Area of triangle = bh/2
A = 4*4.6/2
A = 9.2 cm sq
A of 2 triangles = 9.2*2 = 18.4 cm sq
Now, Area of 1 rectangle = lb --> 15*5 = 75 cm sq
A of 3 rectangles = 75*3 = 225 cm sq
Now, LSA = 225 cm sq. (excluding the triangles)
TSA = A of tr. + A of rec. = 18.4 + 225 = 243.4 cm sq
Hope it helped. Pls mark me the BRAINLIEST! Don't fool pls