Answer and Explanation:
We already know that,
Vol. Of cy. Is πr2h
And
Vol. Of a cone is 1/3πr2h
Therefore we can conclude that the vol. of a cone is one third the volume of a cylinder, give that their height and radius is same .
Meaning if the volume of the cylinder is 300 square units, then the volume of the former cone will be:
1/3 of 300 , that is 100 square units
The linear function graphed below represents the height of a stalk of corn since a farmer began using a new fertilizer. What is the initial value?
A graph titled Height of a Stalk of Corn has Number of Days Using New Fertilizer on the x-axis and Height (feet) on the y-axis. Points are at (3, 10), (4, 12), (5, 14), and (6, 16).
Answer:
The initial value is 4
Step-by-step explanation:
the linear equation is 2/1 or 2. the equation is y = 2x + 4. In other words every time it rise 2 the line move the right 1. We just have to retrace our steps and since 3 - 3 = 0 we have to retrace it 3 times and 6 times on the y axis which gets us 4.
Tess and Dan have $24.00 each to spend at a book fair, where all students receive a 15% discount. They both want to purchase a copy of the same book, which normally sells for $24.50 plus 10% sales tax. To check if she has enough to purchase the book, Tess takes 15% of $24.50 and subtracts that amount from the normal price. She takes 10% of the discounted selling price and adds it back to find the purchase amount. Dan takes 85% of the normal purchase price and then computes 110% of the reduced price. Is Tess correct? Is Dan correct? Do they have enough money to purchase the book? Explain your answer using complete sentences, and show your work.
Plz whoever actually knows the answer please answer correct
Answer: UwU
Im trying to solve it but its so much
please help this was due yesterday and in less than an hour it won't be worth any points
The GCF of 88 and 112
Answer: 8
Step-by-step explanation:
The temperature of a cup of coffee changed by –54 degrees Celsius over 22 ½ minutes. What was the change in temperature each minute?
please help 20 Pts...
Answer:
2
1–
2
Step-by-step explanation:
its my answer i don't know if my answer is right
HELP ME PLS PLS PLS PLSSS
Answer:
V
Step-by-step explanation:
Coordinate are (x,y)
so x=-2 and y=7
Answer: V
Step-by-step explanation:
Which equation represents the line through (4, -6) and (0, 2)?
Ill give brainlest to first RIGHT ANSWER.
Answer:
[tex]y=-2x+2[/tex]
Step-by-step explanation:
Hi there!
Linear equations are typically organized in slope-intercept form: [tex]y=mx+b[/tex] where m is the slope and b is the y-intercept (the value of y when x=0).
1) Determine the slope (m)
[tex]m=\displaystyle\frac{y_2-y_1}{x_2-x_1}[/tex] where two points that fall on the line are [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]
Plug in the given points (4, -6) and (0, 2):
[tex]m=\displaystyle\frac{-6-2}{4-0}\\\\m=\displaystyle\frac{-8}{4}\\\\m=-2[/tex]
Therefore, the slope of the line is -2. Plug this into [tex]y=mx+b[/tex]:
[tex]y=-2x+b[/tex]
2) Determine the y-intercept (b)
The y-intercept occurs when x=0. We are given that (0,2) falls on the line, so therefore, 2 is the y-intercept. Plug this into [tex]y=-2x+b[/tex]:
[tex]y=-2x+2[/tex]
I hope this helps!
Answer:
y = - 2x + 2
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m =
with (x₁, y₁ ) = (4, - 6) and (x₂, y₂ ) = (0, 2 )
m = = = = - 2
The line crosses the x- axis at (0, 2 ) ⇒ c = 2
y = - 2x + 2 ← equation of line
-5= -10+y how do i reorder this and why do i reorder it in that way? i think i know how to reorder it i'm just confused on why it has to be ordered that way. plz help, thanks!
Answer:
y = 5
Step-by-step explanation:
Ok so you need to move y to its own spot so either on the right or left of the equation. BUT i recommend leaving it and instead moving -10 to the other side. REMEMBER when you move a number to the other side of the equation you change its value so instead of -10 it will become +10. so you will get 10-5=y so 5=y, if you want the y to be on the other side flip them around -y=-5(since you switched them you need to make them minus, or plus if the number was originally negative) SINCE you have minuses on both sides you can cancel them out and you will be left with y=5.
Why you need to reorder:
you need to reorder to find Y there is no way you can find Y without reordering. When you are reordering remember that Y has to be by itself in one side of the equation.
In complete sentences, explain an advantage and disadvantage for paying with a debit card.
Answer: Advantages- avoid fees and service charges, stay accountable for spending, no interest charges.
Disadvantages- fees, no grace period, check book balancing, potential fraud.
Step-by-step explanation:
4 3/5 + 5 1/2
Help me please and thank you
Answer:
Step-by-step explanation:
4 3/5 + 5 1/2= (10 1/10)
Step 1: Find the common multiple between the numbers, and simplify-
4 3/5=4 6/10 5 1/2= 5 5/10
Step 2: Convert to improper fractions-
4 6/10 as an improper fraction is 46/10 and 5 5/10 as an improper fraction is 55/10 (Formula for mixed numbers to improper fractions is denominator multiplied by whole number plus numerator)
Step 3: Add numerator of improper fractions, then add back denominator-
46+55=10 1 numerator:101 denominator:10 101/10
Step 4: Convert into mixed number-
101/10= 10 1/10
ANSWER: 10 1/10
Answer:
10.1
Step-by-step explanation:
Conversion a mixed number 4 3/
5
to a improper fraction: 4 3/5 = 4 3/
5
= 4 · 5 + 3/
5
= 20 + 3/
5
= 23/
5
To find a new numerator:
a) Multiply the whole number 4 by the denominator 5. Whole number 4 equally 4 * 5/
5
= 20/
5
b) Add the answer from previous step 20 to the numerator 3. New numerator is 20 + 3 = 23
c) Write a previous answer (new numerator 23) over the denominator 5.
Four and three fifths is twenty-three fifths
Conversion a mixed number 5 1/
2
to a improper fraction: 5 1/2 = 5 1/
2
= 5 · 2 + 1/
2
= 10 + 1/
2
= 11/
2
To find a new numerator:
a) Multiply the whole number 5 by the denominator 2. Whole number 5 equally 5 * 2/
2
= 10/
2
b) Add the answer from previous step 10 to the numerator 1. New numerator is 10 + 1 = 11
c) Write a previous answer (new numerator 11) over the denominator 2.
Five and one half is eleven halfs
Add: 23/
5
+ 11/
2
= 23 · 2/
5 · 2
+ 11 · 5/
2 · 5
= 46/
10
+ 55/
10
= 46 + 55/
10
= 10.1
PLSSSS HELP
Which statement is true about the ratios shown?
Answer:
its B
Step-by-step explanation:
Joe is a scientist who works with the Department of Agriculture. In order to ensure a good harvest, Joe keeps track of various local beetle populations. He catches 590 beetles, marks them, and releases them. Then later, he catches 2,000 beetles, 59 of which are marked. To the nearest whole number, what is the best estimate for the beetle population?
( 11 points if solved)
Will give brainliest, if the answer is correct OR well explaining explanation ( Either Both)
Answer:
There are 20,000 Beatles in the total population
Step-by-step explanation:
59 Beatles out of the 2,000 are marked (2.95% or 59/2000)
-----------------------------------------
1 / 0.0295 = 33.8983051
That means that the total population is 33.89 times larger than the 590 marked beatles.
33.8983051 x 590 = 20,0000 Beatles total
Answer:
Approximately 20,000 beetles
Step-by-step explanation:
The answer is approximately 20,000 beetles because Joe found 590 beetles and marked them. When he found the other 2,000 beetles, 59 of them were marked. 59 is 10% of 590. Since Joe found 2,000 beetles that must be 10% of some number. To find that number, you must multiply 2,000 by 10. So 2,000 x 10 is 20,000, so there is approximately 20,000 beetles
can somebody please help me with this please?
Answer: 9=9 I think
Step-by-step explanation:
Because they are in a same line in the graph
After taxes Brianna makes $9.25 per hour. She works for 6 hours a day and 4 days a per week. She puts 32% of her money in a savings account each week?
Answer:
She puts $71.04 into her savings each week
Amount Earned Each Day:
$9.25 x 6 hours = $55.5 per day
Amount Earned Each Week:
$55.5 per shift x 4 times per week = $222 each week
Amount Put Into Savings Account:
$222 x 0.32 (or 32%) = $71.04 in her savings
Amount Kept After Savings:
$222 - $71.04 = $150.96
Lisa comprou um carro seminovo e, após ter um desconto de 6%, pagou R$ 2
3.800,80. Qual é o valor do carro antes do desconto?
a) R$ 25.320,00
b) R$ 27.160,00
c) R$ 23.545,00
POR FAVOR AJUDEM
Find the length of the hypotenuse in the triangle below
Answer:
The hypotenuse is 15. Please give Brainilest
Step-by-step explanation:
Since it is a right triangle, it probably follows the Pythagorean theorem
basically saying two legs squared equal hypotenuse squared
[tex]a^2+b^2=c^2[/tex]
In this case, if you know your Pythagorean theorem triples, then the
answer will be 9,12,15
If you don't let me explain
[tex]9^2 = 81\\12^2 = 144\\15^2=225\\\\a^2+b^2=c^2\\9^2+12^2=15^2\\81+144=225\\[/tex]
This is correct
If you don't know how I got this, learn the first five or six Pythagorean theorem triples, and these will be a piece of cake for you. Remember this only works for right triangle though.
At the mini-mart, Kathy spent $1.39 for a muffin, $2.99 for milk, and $0.99 for a bag of chips. About how much did he spend?
Answer:
He spent $5.37 in total.
5/6(-8/15) plz help
Answer: -40/90 I think
Step-by-step explanation:
5x8= 40
6x15=90
Answer:
If your talking about division -0.44444444444
Step-by-step explanation: no explanation just look it up
the sum of measures of two of the angles formed by the intersection of two lines is 50 degrees find the measures of all angles
Answer:
The angles are 25 degrees, 155 degrees 25 degrees, and 155 degrees.
Solve the questions 7, 8, and 9.
7. A 6t 8. B 5.5 9. B 14
Referring to the Fig. in Question #38, find the unknown
length y. (Do not use a calculator to
approximate your answer. Give the exact answer.)
Answer:19
Step-by-step explanation:
both sides are equal
Alonzo will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of $50 and costs an additional 0.10 per mile driven. The second plan has no initial fee but costs 0.60 per mile driven. How many miles would Alonzo need to drive for the two plans to cost the same?
Answer:
for plan B if he rides for 100 miles he will pay 60$
for plan A if he rides for 100 miles he will pay 60$
Step-by-step explanation:
the reason is that B. 100x0.60=60
and A (100x0.10)+50=60
Answer:
100 miles
Step-by-step explanation:
If Alonzo drives 0 miles, then the first plan would cost him 50 dollars and the second plan would cost him nothing.
If Alonzo drives 10 miles, then the first plan would cost him 51 dollars and the second plan would cost him 6 dollars.
From these statements, we can observe that the second plan is increasing at a rate 6 times the first one and will overtake it at one point.
Our solution is the point of intersection between these two functions - where they cost the same.
To find this, equate
0.1x + 50 = 0.6x
where x is the number of miles Alonzo drives,
multiply the equation with 10 to get,
x + 500 = 6x
subtract x,
5x = 500
and divide 5,
x = 100.
So at 100 miles, both plan 1 and 2 will cost 60$. This is our answer. Good Luck!
there are 20 houses on Rainbow Street. 45% of the houses have holiday decorations in their yard. How many houses have decorations? (SHOW YOUR WORK!)
Answer:
9
Step-by-step explanation:
Help!
Point Q is plotted on the coordinate grid. Point P is at (20, −30). Point R is vertically above point Q. It is at the same distance from point Q as point P is from point Q. Which of these shows the coordinates of point R and its distance from point Q?
On a coordinate grid from negative 50 to positive 50 in increments of 10, Point Q is plotted at the ordered pair negative 40, negative 30.
Point R is at (−40, 30), a distance of 60 units from point Q
Point R is at (−40, −10), a distance of 20 units from point Q
Point R is at (−40, −30), a distance of 60 units from point Q
Point R is at (−40, 10), a distance of 20 units from point Q
Answer:
B
Step-by-step explanation:
I think it might be c?
2 4/5−1 1/2
as a fraction
Select all the statements that must be true for any scaled copy queue of polygon P.
Answer:
im on that exact question and dont understand it either...
Step-by-step explanation:
i need help can you review this picture and tell me the answer no link please
[tex]3a-4\leq5[/tex]
Multiply 3 2/5 • 2 1/3
Answer:
5 2/15
6 2/15
7 2/15
8 2/15
Answer:
7 2/15 is the answer to your question
Answer:
The Answer is 7 2/15