Answer:
0
Step-by-step explanation:
its a negative rational number
In the expression 2a-5+4a-9, name the constants
Answer:
-5 and -9 are the constants, can also be written -14
I really need help so please do your thing and help me
there are 1500 book in a library. if the ratio of English, hindi, and urdu is 4:5:1,then find the number of book of each language
Answer:
Total : 1500
English : 4x
Hindi :5x
Urdu :1x
4x +5x+x = 1500
10x = 1500
x = 1500/10= 150
English : 4x:600
Hindi :5x : 750
Urdu :1x : 150
It’s time to lock down the design details for the redesigned Brick and Egyptian candles. Because of manufacturing constraints, the base length for each candle has to be at least 2 cm and can be no more than 10 cm. Make a recommendation for the base dimensions of each candle. Explain how you determined your base dimensions. Your reasoning does not have to be all math related.
Answer:
THE SMALLEST FORMS:
- smallest prism ---> the cube with all sides 2 ==> the volume is 2*2*2 = 8 cm^3
- smallest pyramid number one ---> the pyramid with base sides 2 and the height also 2 ==> the volume is (1/3)*2*2*2 = 8/3 cm^3
- smallest pyramid number two ---> the pyramid with base sides 2 and the lateral sides also 2 ==> the radius of the base is sqrt(2) ==> [pyramid_height]^2 = [lateral_side]^2 - [base_radius]^2 = 2^2 - sqrt(2)^2 = 4 - 2 = 2 ==> pyramid_height = sqrt(2) ==> the volume is (1/3)*2*2*sqrt(2) = 4*sqrt(2)/3 cm^3
- smallest cylinder --> the cylinder of diameter 2 and height also 2 ==> the radius is diameter/2 = 2/2 = 1 ==> the volume is pi*(radius^2)*height = pi*(1^2)*2 = pi*1*2 = 2*pi cm^3
The lesser volume is the volume of the smallest pyramid number two. ==> it's wax cost is approximately 0.0075 * 4 * 1.42 / 3 $ per candle = 0.014 $ per candle ==> the total cost per candle is approximately 0.014 + 1.6 = 1.614 $ per candle.
THE BIGGEST FORMS:
- biggest prism ---> the cube with all sides 10 ==> the volume is 10*10*10 = 1000 cm^3
- biggest pyramid number one ---> the pyramid with base sides 10 and the height also 10 ==> the volume is (1/3)*10*10*10 = 1000/3 cm^3
- biggest pyramid number two ---> the pyramid with base sides 10 and the lateral sides also 10 ==> the radius of the base is 5*sqrt(2) ==> [pyramid_height]^2 = [lateral_side]^2 - [base_radius]^2 = 10^2 - [5*sqrt(2)]^2 = 100 - 50 = 50 ==> pyramid_height = 5*sqrt(2) ==> the volume is (1/3)*10*10*5*sqrt(2) = 500*sqrt(2)/3 cm^3
- biggest cylinder --> the cylinder of diameter 10 and height also 10 ==> the radius is diameter/2 = 10/2 = 5 ==> the volume is pi*(radius^2)*height = pi*(5^2)*10 = pi*25*10 = 250*pi cm^3
The bigger volume is the volume of the biggest prism (the side-10 cube). ==> it's wax cost is 0.0075 * 1000 $ per candle = 7.5 $ per candle ==> the total cost per candle is 7.5 + 1.6 = 9.1 $ per candle
The range of the cost is the interval [1.614 ; 9.1]. Depending on other prices on the market, you greed, and other factors you will put a profit margin: maybe 20% of the cost ; maybe a fixed margin like 5$. So the price per candle will be the cost per candle plus the profit margin per candle.
If I were to choose the base length I would have to say 6 because it is the arithmetic mean between 2 and 10: (2+10)/2 = 12/2 = 6. 2cm is too small, and 10cm is too big.
Also if you start with a rectangle of length 10 and width 2 and you have to find the rectangle with the largest area by being allowed to increase the width and decrease the width with the same quantity you get this:
Area of the new rectangle is (10-x)(2+x) = -x^2 + 8x + 20 = -x^2 + 8x -16 + 36 = -(x^2 - 2*x*4 + 4^2) + 36 = -(x-4)^2 + 36 = 36 - (x-4)^2 which has the maximum value of 36 because out of 36 you subtract a positive value. You get the maximum when (x-4)^2 = 0 ==> x-4=0 ==> x=4
The new length is 10-4=6 and the new width is 2+4=6.
Next I would choose the height of the prism (I like prisms :P) to be [the_golden_ratio]*[base_side] which is approximately 1.618 * 6 = 9.708 which I would round up to 10. ==> The volume would be 6*6*10 = 360 cm^3. ==> the cost would be 0.0075*360 + 1.6 = 2.7 + 1.6 = 4.3 $ per candle. And because my candle is so perfect I'd put the profit margin to be 5.69 $ per candle so I can proudly show it in the store with the price of 4.3 + 5.69 = 9.99 $ :)
Select the correct answer.
What does the abbreviation IPTC stand for in photography?
A
International Photo Transfer Commission
B.
International Press Telecommunications Council
C. Internal Photo Transfer Commission
D.
Internal Protocol Transfer Council
be
E.
International Photography Trade Council
Answer:
International Press Telecommunications Council
The points in the table lie on a line. What is the slope of the line?
X
-8
-2
4
10
у
8
1
-6
-13
1/4 plus what equals 2/3
Answer:
11/12
Step-by-step explanation:
you just add 1/4+2/3
find the common demionater (4 and 3) multipy and you get 11/12
(1/4*3) (2/3*4)= 3/12+8/12
The correct value of the expression is, 5/12
What is Addition?The process of combining two or more numbers is called the Addition. The 4 main properties of addition are commutative, associative, distributive, and additive identity.
Given that;
The expression is,
⇒ 1/4 + x = 2/3
Where, x is unknown.
Now, We have to solve the expression for the value of x as;
⇒ 1/4 + x = 2/3
Subtract 1/4 both side,
⇒ 1/4 + x - 1/4 = 2/3 - 1/4
⇒ x = (8 - 3) / 12
⇒ x = 5/12
Learn more about the addition visit:
https://brainly.com/question/25421984
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A middle school took all of its 6th grade students on a field trip to see a play at a theater that has 3100 seats. The students left 1395 seats vacant. What percentage of the seats in the theater were filled by the 6th graders on the trip?
Answer: 55% of the seats in the theater were filled by the 6th graders on the trip.
Step-by-step explanation:
Given: Total seats = 3100
Seats vacant= 1395
Seats occupied by 6th graders = 3100-1395 = 1705
The percentage of the seats in the theater were filled by the 6th graders on the trip = [tex]\dfrac{\text{Seats occupied by 6th graders}}{\text{Total seats}}\times100[/tex]
[tex]=\dfrac{1705}{3100}\times100\\\\= 55\%[/tex]
Hence, 55% of the seats in the theater were filled by the 6th graders on the trip.
Raul opened a savings account with 4300. Each week, x, Raul pays the dog sitter 30 from his savings account. Write a function, f(x), that is equal to the amount of money in the account after Raul pays the dog sitter each week.
Given:
Amount in the savings account = 4300
Each week, Raul pays the dog sitter 30 from his savings account.
To find:
The function, f(x), that is equal to the amount of money in the account after Raul pays the dog sitter each week.
Solution:
Let x be the number of weeks.
Raul pays the dog sitter in 1 week = 30
Raul pays the dog sitter in x week = 30x
Remaining amount = Initial amount - Amount he pays the dog sitter
[tex]f(x)=4300-30x[/tex]
Therefore, the required function is [tex]f(x)=4300-30x[/tex].
Which of the following functions maps 3 to -5?
Of(x) = x + 8
O f(x) = x-5
O f(x) = 4 – x2
O f(x) = -x + 2
Answer:I think it’s B
Step-by-step explanation:
If I get this wrong i’m sorry
While standing on a 50 foot high roof, Santa throws an ornament up into
the air with an initial velocity of 40 feet per second. How long will it take to
hit the ground? Round your answer to the nearest tenth.*
PLEASE HELP ASAP!
Answer: 1.25
Step-by-step explanation: you gotta divide 50 and 40.
You want to buy a $25,000 car. The company is offering a 2 % interest rate for 48 months (4 years). What
will your monthly payments be?
O $500.71
O $815.05
O $542.38
$6, 276.06
pls help i'll give branliest
Answer:
50
Step-by-step explanation:
good luck!!
Answer:
50
Step-by-step explanation:
hope its correct..............
For a dinner party, a catering company charges a set fee $150 plus $20 per person. How much will it cost for 35 people to attend the event?
Answer:
$700 for 35 people but if you want to add the fee it will be $850
HELP GIVING AWAY 55 POINTS!!!!
Pete wants to mix 4 quarts of 20% orange juice concentrate with some 60% pineapple juice concentrate to get a 50% punch concentrate for a party. How much of the 60% pineapple juice concentrate should be used? please answer ASAP and explain thought process
Answer:
12 quartsStep-by-step explanation:
Let the amount of pineapple juice be x quarts, the concentration of juice is as following equation:
4*0.2 + x*0.6 = (4 + x)*0.50.8 + 0.6x = 2 + 0.5x0.6x - 0.5x = 2 - 0.80.1x = 1.2x = 12Which inequality represents all values of x for which the product below is
defined?
please help very confused
Answer:
C. x ≥ 5
Step-by-step explanation:
You must meet both conditions:
(x -5) ≥ 0 and (x +2) ≥ 0
For the first condition, ...
x ≥ 5 . . . . add 5 to both sides
For the second condition ...
x ≥ -2 . . . . subtract 2 from both sides.
Since both conditions must be met, we must have ...
x ≥ 5
i hope this helps :)
2x-2y=-10 Standard to Slope Intercept form
Answer:
y=x-5
Step-by-step explanation:
2x-2y=10
1.) subtract 2x from both sides
-2y=-2x+10
2.) Divide by -2 to get y by itself
y=x-5
Answer:
y= x+5
Step-by-step explanation:
y =mx+b is slope intercept form
The forum of Pompeii is a rectangle 520 feet long by 109 feet wide. What's its
area?
It is 56680 square feet.
Step-by-step explanation:
Multiply the two numbers
What is 106% of $40?
Answer:
I think it's 42.4 hope this helps
Answer:
42.4 hope this helps
Step-by-step explanation:
What is 7.5 - 1.5 x 3?
Answer:
3
Step-by-step explanation:
7.5 - 1.5 x 3
7.5-4.5
3
Can anyone help me with this?
jason can travel 24 miles in 1/2 hour. What is his average speed in miles per hour
Answer:
Step-by-step explanation:
If Jason travel 24 miles in 1/2 hour, he will travel 2*24=2*1/2h
48 miles/hour
or
24 miles...............................30 min
? miles in .............................60 min
(60*24)/30=48
Aiden was asked to find the product of 24.5 and 7.7. His work is shown below. Which statements about Aiden's work are true? Check all that apply Estimate: 25 x 8 = 200 Aiden did not make a good estimate. Actual: 24.5 x 7.7 = 1,886.5 Aiden should have estimated the product as 24 x 7. Aiden did not insert the decimal point correctly when estimating. Aiden did not insert the decimal point correctly after multiplying the actual amount. O Aiden's estimate and the actual product do not match closely enough.
Answer:
sorry for the late answer, it looks like a b and d
Evaluate the following for when x=5
4(x-2)(x-3)+7(x-2)(x-5)-6(x-3)(x-5)
Answer:5x^(2)-21x+4
Step-by-step explanation:
Please help me out!!
Answer:
D. 9(3.1416)
Step-by-step explanation:
Mrs. Robertson is carpeting her rectangular living room.
The room is 10 feet wide and 15 feet long. What is the
area to be carpeted?
Answer:
150 ft
Step-by-step explanation:
The formula for area is, height x width (h x w) or base x height (b x h)
10 feet is the base and 15 is the height, multiply those and you get 150
A straight line has gradient 4 and passes through the point (5,23).
Work out the equation of the line.
Answer:
Equation of line is: [tex]\mathbf{y=4x+3}[/tex]
Step-by-step explanation:
We are given:
A straight line has gradient 4 and passes through the point (5,23).
Work out the equation of the line.
The equation of line will be in slope-intercept form: [tex]y=mx+b[/tex]
where m is slope and b is y-intercept
Finding slope
We have slope (gradient) m = 4
Finding y-intercept
Using slope m = 4 and point (5,23) we can find b i.e y-intercept
[tex]y=mx+b\\23=4(5)+b\\23=20+b\\b=23-20\\b=3[/tex]
So, we get y-intercept b = 3
Finding Equation of Line
Now, writing equation of line having slope m = 4 and y-intercept b = 3 is:
[tex]y=mx+b\\y=4x+3[/tex]
So, the Equation of line is: [tex]\mathbf{y=4x+3}[/tex]
Complete the statement to show an equivalent ratio. ) 18:10 is equivalent to ? : 5.
Answer:
9
Step-by-step explanation:
[tex] \frac{18}{10} = \frac{?}{5} \\ \\? = \frac{18 \times 5}{10} \\ \\? = \frac{90}{10} \\ \\ ? = 9[/tex]
Answer:9
Step-by-step explanation:because if you divide 10 by 2 it’s 5 and if you divide 18/2 it’s 9
4 days =____ hours
????????????????????????
4 days = 96 hours.......
Brianna went into a bakery and bought 2 cookies and 3 brownies, costing a total of $9.50. Nevaeh went into the same bakery and bought 10 cookies and 6 brownies, costing a total of $20.50. Write a system of equations that could be used to determine the price of each cookie and the price of each brownie. Define the variables that you use to write the system.
Answer:
Step-by-step explanation:
c=cookies
b=brownies
2c+3b=9.50 > Briana
10c+6b=20.50 > Nevaeh