Answer:
The volume of a sphere is 4/3 * πr³
With a radius of 3, you've got:
4/3 × π3³
= 4/3 × π × 27
= 4 × π × 9
= 45π
calculate 50% of 200
Answer:
100
Step-by-step explanation:
hopes this helps
Answer:
100
Step-by-step explanation:
Solve the quadratic inequality
4x^2-25<0
I hope it helps you ❤️❤️❤️❤️
The solution to the inequality, 4x^2 - 25 < 0 is determined as x < 5/2.
Solution to the inequality
The solution to the inequality is obtained by solving the inequality as shown below;
4x^2 - 25 < 0
add 25 to both sides of the equation;
4x² < 25
divide both sides by 4
x² < 25/4
take square root of both sides
x < 5/2
Thus, the solution to the inequality, 4x^2 - 25 < 0 is determined as x < 5/2.
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what is x? I WILL MARK BRAINLIEST FOR FIRST WHO ANSWERS!!!!!
Answer:
It is 19
Step-by-step explanation:
Hope this helps.
The variable y varies directly as x and inversely as z. When x = 4 and z= 14, y=2.
Write a combined variation equation and find y when x = 6 and z= 3.
Given:
The variable y varies directly as x and inversely as z. When x = 4 and z= 14, y=2.
To find:
The combined variation equation and find y when x = 6 and z= 3.
Solution:
The variable y varies directly as x and inversely as z.
[tex]y\propto \dfrac{x}{z}[/tex]
[tex]y=k\dfrac{x}{z}[/tex] ...(i)
Where, k is the constant of proportionality.
Putting x=4, y=2 and z=14, we get
[tex]2=k\dfrac{4}{14}[/tex]
[tex]2=k\dfrac{2}{7}[/tex]
[tex]2\times \dfrac{7}{2}=k\dfrac{2}{7}\times \dfrac{7}{2}[/tex]
[tex]7=k[/tex]
Putting k=7 in (i), we get
[tex]y=7\dfrac{x}{z}[/tex]
Putting x=6 and z=3, we get
[tex]y=7\times \dfrac{6}{3}[/tex]
[tex]y=7\times 2[/tex]
[tex]y=14[/tex]
Therefore, the required equation is [tex]y=7\dfrac{x}{z}[/tex] and the value of y is 14 when x = 6 and z= 3.
PLEASE I need help on these 4 problems you don’t have to do them all but if you can at least do one of them TYSM
Answer:
For right angle triangle,
we use Pythagoras theorem that is:
[tex]c^{2} =a^{2} +b^{2}[/tex]
c = [tex]\sqrt{a^{2} +b^{2} }[/tex]
For question 1:
c = ?
a = 40
b = 9
putting them in formula,
c = [tex]\sqrt{40^{2} + 9^{2} }[/tex]
c = 41
For question 2:
c = ?
a = 12
b = 13
putting them in formula,
c = [tex]\sqrt{12^{2} + 13^{2} }[/tex]
c = approximately 17.69181
For question 3:
c = 35
a = 20
b = ?
putting them in formula,
[tex]c^{2} =a^{2} +b^{2}[/tex]
[tex]35^{2} = 20^{2} + b^{2}[/tex]
1225 = 400 + [tex]b^{2}[/tex]
[tex]b^{2}[/tex] = 1225 - 400
[tex]b^{2}[/tex] = 825
[tex]\sqrt{b^{2} } = \sqrt{825}[/tex]
b = 5 [tex]\sqrt{33}[/tex]
For question 4:
c = 37
a = 20
b = ?
putting them in formula,
[tex]c^{2} =a^{2} +b^{2}[/tex]
[tex]37^{2} = 20^{2} + b^{2}[/tex]
1369 = 400 + [tex]b^{2}[/tex]
[tex]b^{2}[/tex] = 1369 - 400
[tex]b^{2}[/tex] = 969
Taking square root on both sides
b = 31.12
Hope it helps.
Amelie has 385 muffins that she must package into boxes. Each box must hold 9 muffins. Amelie divides 385 by 9 and gets an answer of 42 R 7.
What is the correct interpretation of R 7 for this situation?
1st one : Amelie can fill at most 42 boxes with 7 muffins each
2nd one :Amelie has 7 muffins left after filling 42 boxes.
3nd one :Amelie has 7 boxes left after filling 42 boxes.
4th one :Amelie can fill 7 more boxes after filling 42 boxes.
Answer:
2nd one: amelia has 7 muffins left after filling 42 boxes
Step-by-step explanation:
A-180
B-360
C-270
D-90
PLS HELP ASAP!!
Answer:
its d
Step-by-step explanation:
Based on its number of terms, what is the
polynomial 2p2 – 2p called?
PLS HELP
Answer: quadratic
Step-by-step explanation:
The given polynomial is a quadratic polynomial with two terms.
The given expression is:
[tex]2p^{2} -2p[/tex]
What is a quadratic polynomial?A quadratic polynomial is a single variable polynomial with the maximum power of the variable as 2.
Maximum power of p in the given expression =2
So, the given polynomial is a quadratic polynomial.
Hence, the given polynomial is a quadratic polynomial with two terms.
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34 + 35!!
Write how you got it lol
Answer: 69
Step-by-step explanation:
First, you add the 34 with the 35.
You can check your answer by subtracting the answer 69 with 35 and if the answer comes out as 34 it is correct.
Answer: 69 lol
Step-by-step explanation: i got it by adding 34 + 35 lol
help giving brainliest b,c,d
Find the marginal cost, marginal revenue, and marginal profit functions. C(x) = 7x; R(x) = 9x − 0.001x2
Given:
The cost function is
[tex]C(x)=7x[/tex]
The revenue function is
[tex]R(x)=9x-0.001x^2[/tex]
To find:
The marginal cost, marginal revenue, and marginal profit functions.
Solution:
We know that,
[tex]Profit=Revenue-Cost[/tex]
[tex]P(x)=R(x)-C(x)[/tex]
[tex]P(x)=9x-0.001x^2-7x[/tex]
[tex]P(x)=2x-0.001x^2[/tex]
The marginal cost, marginal revenue, and marginal profit functions are the derivatives of cost, revenue and profit functions respectively.
Marginal cost function is
[tex]C'(x)=7\dfrac{d}{dx}x[/tex]
[tex]C'(x)=7(1)[/tex]
[tex]C'(x)=7[/tex]
Marginal revenue function is
[tex]R'(x)=9(1)-0.001(2x)[/tex]
[tex]R'(x)=9-0.002x[/tex]
Marginal profit function is
[tex]P'(x)=2(1)-0.001(2x)[/tex]
[tex]P'(x)=2-0.002x[/tex]
Therefore, the marginal cost, marginal revenue, and marginal profit functions are [tex]C'(x)=7[/tex], [tex]R'(x)=9-0.002x[/tex] and [tex]P'(x)=2-0.002x[/tex] respectively.
HELP ASAP its due today
also please include the work if possible
Find the probability of rolling a 5 or 6 on a fair dice
Answer:
[tex]\frac{1}{3}[/tex]
Step-by-step explanation:
[tex]\frac{1}{6}[/tex] + [tex]\frac{1}{6}[/tex]
This is because there is only one "5" and one "6" in a dice. Moreover the total number of numbers in a dice are 6 so the denominator will be 6. Then when the word 'or' is present it means that both the probabilities must be added.
P (of rolling a 5 or 6 on a fair dice) = [tex]\frac{1}{6}[/tex] + [tex]\frac{1}{6}[/tex]
[tex]\frac{2}{6}[/tex] can be simplified further. Both 2 and 6 are factors of 2 so..
[tex]\frac{2}{6}[/tex] = [tex]\frac{1}{3}[/tex]
P (of rolling a 5 or 6 on a fair dice) = [tex]\frac{1}{3}[/tex]
please help!!! giving brainlest , please don’t joke around.
Answer:
67.5 mm²
Step-by-step explanation:
Alright, we're going to make 3 different smaller shapes
Shape (triangle)
a=1/2(b)ha=1/2(5(3)= 7.5Shape (skinny rectangle)
a=l·wa=2·9= 18Shape (bigger rectangle)
a=l·wa=7·6= 42Add them all together
42+18+7.5= 67.5
Which number line shows the solution to the inequality
4x + 5 2 9?
A
HT
-4-2 0 2 4
B
HITH
--4-2 0 2 4
c
HHHHHH
-4-2 0 2 4
HHHHH
-4-2 0 2 4
HELP I NEED IT NOW ITS CLASSWORK 20 points
Answer:
Ok
3. 12, 3, 6, and 24
4. 60 and 30.
5. 0, 1, and 10.
Step-by-step explanation:
HOPE THIS HELPS!!
How would you make $17.84. (Use the least amount of bills and coins.) *
Answer:
$17.85
1 ten
1 five
2 ones
3 quarters
1 nickel
4 pennies
Hope I helped! <3 :)
$24.96
1 twenty
4 ones
3 quarters
2 dimes
1 penny
Melissa earns a 2% commission on the first $750 of sales she makes each week. She earns a 3% commission on the amount of her sales that are greater than $750 each week. Melissa earned $37.50 in commissions last week.
Which equations correctly calculate how much money in dollars, x, Melissa made in sales last week?
Select all that apply.
0.02(750)+0.03(750−x)=37.5
0.03(x−750)=37.5−15
15+0.03x−22.5=37.5
0.02(750)+0.03(x−750)=37.5
15−0.03x+22.5=37.5
0.03(750−x)=37.5−15
The equations that are correct are:
0.02(750) + 0.03(x - 750) = 37.5
0.03(750 - x) = 37.5 - 15
Given:
Melissa earns a 2% commission on the first $750 of sales.
She earns a 3% commission on greater than $750 each week.
1. Sales up to $750:
Melissa earns a 2% commission on the first $750 of sales.
=0.02(750)
= 15
2. Sales exceeding $750:
Melissa earns a 3% commission on the amount of sales that exceed $750.
0.03(x - 750) = 37.5 - 15
Combining both equations, we have:
0.02(750) + 0.03(x - 750) = 15 + 37.5 - 15
15 + 0.03x - 22.5 = 37.5
0.03x - 7.5 = 37.5
Adding 7.5 to both sides
0.03x = 45
Dividing both sides by 0.03
x = 1500
Therefore, the correct equations that calculate the amount of money Melissa made in sales last week are:
Equation 1: 0.02(750) + 0.03(x - 750) = 37.5
Equation 2: 0.03(750 - x) = 37.5 - 15
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una parcela de 45 m de ancho y 70 m de largo cuesta 78.750.000 ¿Cuánto cuesta otra parcela de terreno de igual calidad de 60 por 50 m?
Answer:
75000000
Step-by-step explanation:
se multiplica
45×70= 3150 metros
luego multiplica
60×50= 3000 metros
luego se divide
78750000/ 3150 = 25000
y por último multiplica
25000×3000
conclusiones
el metro cuadrado de tierra vale 25000 por lo que los 3000 metros cuadrados que son del terreno de 60x50 estan valorados en 750000000
What is 5.545 as a percent?
Answer:
545.5%
Step-by-step explanation:
Answer:
Step-by-step explanation:
Multiply both numerator and denominator by 100. We do this to find an equivalent fraction having 100 as the denominator.
5.545 ×
100
100
= (5.545 × 100) ×
1
100
=
554.5
100
Write in percentage notation: 554.5%
Leila needs to buy plastic spoons. Brand A has a box of 25 spoons for $1.97. Brand B has a box of 48 spoons for $2.98. Find the unit price for each brand. Then state which brand is the better buy based on the unit price. Round your answers to the nearest cent.
Answer:
The unit price is the price of a single unit.
To find it, you need to find the quotient between the total price and the number of objects you get for that price.
Brand A:
You get 25 spoons for $1.97
Then the unit price is:
unit price of brand A = $1.97/25 = $0.079
Brand B:
You get 48 spoons for $2.98
Then the unit price is:
unit price of brand B: $2.98/48 = $0.062
Here we can see that the unit price for brand B is smaller, then the better buy is brand B.
Which of the following statements is a property of parallelograms?
All sides are parallel.
Opposite sides are parallel.
No sides are parallel.
Adjacent sides are parallel
Answer:
Opposite
Step-by-step explanation:
Opposite sides are parallel is the statement which is a property of parallelogram.
What is Parallelogram?A quadrilateral is defined as a two-dimensional shape with four sides, four vertices, and four angles.
A parallelogram is a special type of quadrilateral that has both pairs of opposite sides parallel and equal.
There are six important properties of parallelograms to know:
Opposite sides are congruent .
Opposite angels are congruent .
Consecutive angles are supplementary.
If one angle is right, then all angles are right.
The diagonals of a parallelogram bisect each other.
In the given options Opposite sides are parallel is the statement which is a property of parallelograms.
Hence, Opposite sides are parallel is the statement which is a property of parallelogram.
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If a call started at 7:53 and ends at 8:25.
How long did the call last?
Answer:
33 minutes
Step-by-step explanation:
33min
Answer: The answer to this math question about how long did the call has lasted from 7:53 PM to 8:25 PM is the call has been lasted long is 32 minutes ago.
Step-by-step explanation: Here is a brief step-by-step explanation in order to find how long did the call has lasted from 7:53 PM to 8:25 PM:
So, 25 minutes from the 8 hours to 8:25 PM and then, 53 minutes to 60 minutes is 7:25 PM + 7:32 PM.
I hope that my briefly short given answer with my briefly short given a step-by-step explanation in order to find how long did the call has lasted from 7:53 PM to 8:25 PM, please mark me as Brainliest, take care, always be safe, and have a great rest of the holiday winter break, Merry Christmas and a happy new year! :D
Sincerely,
Jason Ta,
The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.
Someone help me I’m confused? I only have 20 minutes till the timer runs our
I'll mark brainliest pls help!
im stuppid
Answer:
c
Step-by-step explanation:
Select the line plot that represents the given ages of students in a youth choir.
14, 13, 14, 15, 17, 12, 15, 16, 14, 16
PLEASEE I NEED HELP ON THIS
Answer: B
Step-by-step explanation:
Need help will give you the brainliest
Answer:
2(9r) and 18r are equivalent
Can someone help me with this umm math thingy
Answer:
1. The similar triangles are ΔXYZ and ΔPQR
The triangles are similar by the AA rule of similarity
2. The similar triangles ΔXYZ and ΔPQR cannot be assumed as being congruent because more information are required about the length of a pair of corresponding sides of both triangles
3. x = 17.5
4. x = 20
Step-by-step explanation:
1. The angles of triangle ΔXYZ are;
∠X = 32°, ∠Y = 84° and ∠Z = 180° - (84° + 32°) = 64°
The angles of triangle ΔPQR are;
∠P = 64°, ∠R = 32° and ∠Q = 180° - (64° + 32°) = 84°
The angles of triangle ΔABC are;
∠A = 64°, ∠C = 92° and ∠B = 180 - (92 + 64) = 24°
Therefore, the two similar triangles are ΔXYZ and ΔPQR
The triangles are similar based on Angle-Angle (AA) rule of similarity
2. The similar triangles ΔXYZ and ΔPQR cannot be assumed as being congruent because more information are required about the length of a pair of corresponding sides of both triangles
3. We have by corresponding triangles formed by the tree and Enzo as follows;
5 ft./(6 ft.)= x/(21 ft.)
∴ x = 21 ft.× (5 ft./6 ft.) = 17.5 ft.
x = 17.5 feet
4. By corresponding triangles, we have;
(35 ft.)/(40.5 ft.+ 54 ft.) = x ft./(54 ft.)
∴ x ft. = (54 ft.) × (35 ft.)/(40.5 ft.+ 54 ft.) = 54 ft. × (35 ft.)/(94.5 ft.) = 20 ft.
x ft. = 20 ft.
∴ x = 20
Mike collects trading cards. His favorites are baseball and football cards. For every 3 basebali cards he owns, Mike has 5 football cards. What is the ratio of baseball cards to football cards in his collection ?
Answer:
56 cards
Step-by-step explanation:
If 5 baseball cards multiplied by 8 is 40, then you multiply the 7 football cards by 8 as well.
7x8=56
56 is the answer because if 5 baseball cards multiplied by 8 is 40, then you multiply the 7 football cards by 8 as well.
HELP WHAT IS THE SLOPE!!!!!
Answer:
-4/5
Step-by-step explanation:
y=mx+c
m=gradient=-4/5