Answer:
8%
Step-by-step explanation:
The original perimeter is 100cm
The 20cm is representative of the width
30cm is representative of the length
length is increased by 10%
30+(.10 x 30)
(1 + .10) × 30
(100% + 10%) × 30
110% × 30
110 ÷ 100 × 30
110 × 30 ÷ 100
3,300 ÷ 100
= 33
length is increased by 5%
20 + (5% × 20) =
20 + 5% × 20 =
(1 + 5%) × 20 =
(100% + 5%) × 20 =
105% × 20 =
105 ÷ 100 × 20 =
105 × 20 ÷ 100 =
2,100 ÷ 100 =
= 21
New perimeter: 108 cm
Percentage increase:
(108-100):100*100 =
(108:100-1)*100 =
108-100 = 8
= 8%
Which values are solutions of the inequality 7 > 2 - 4?
Choose ALL that apply.
6
7
10
11
20
Answer: This question does not make sense since 2 minus 4 is -2 and 7 > -2, which means this inequality is true by itself. There are no "solutions" to this inequality since there are no variables. Maybe you made a typo?
Edit: I found the actual question on the internet (it's 7 > z - 4) and the answers are 6, 7, and 10.
This is because simplifying this inequality gives us 11 > z, and 6, 7, and 10 are the only values that are below 11.
Answer:
7 > z - 4
7 6 10
Step-by-step explanation:
you have a typo,
work out 77.5% of 1500
3what is the value of 1/4 of 6times
Answer:
[tex]1 \frac{1}2}[/tex]
Step-by-step explanation:
The question is asking [tex]\frac{1}{2}[/tex] times 2. You multiply 6 with the numerator to get [tex]\frac{6(1)}{4}[/tex] Simplify it and get 6/4, or one and one-half
The first three terms of a sequence are given. Round to the nearest thousandth (if necessary). 13,39,117 Find the 6th term.
Answer:
3159
Step-by-step explanation:
This is Geometric Sequence where its common ratio =39/13=117/39=3
The Geometric Sequence General Formula = [tex]a_{n} =a*r^{n-1}[/tex]
where a is the 1st Term and r is the common ration
[tex]a_{6} =13*3^{6-1}=3159[/tex]
If tan (θ )=0.532 , and α is the complement of θ , then tan (α) =
Answer:
tan(α) = 89.468
Step-by-step explanation:
90 - 0.532
Use the long division method to find the result when 6x3 + 19x2 + 10x + 1 is
divided by 2x + 1.
Answer:
Hope this answer helps you !
It takes 56 pounds of seed to completely plant an 8-acre field. How many acres can be planted per pound of seed?
Answer:
7
Step-by-step explanation:
8 divided by 56 equals 7
Answer:
1/7 acre
Step-by-step explanation:
The number of acres planted is presumed to be proportional to the number of pounds of seeds:
acres/pounds = 8/56 = x/1
x = 1×8/56 = 1/7
1/7 acre can be planted per pound of seed.
_____
Additional comment
When you recognize that 56 = 8×7, there is a tendency to want to divide 56 by 8. That would result in the unit rate ...
(56 lb)/(8 ac) = 7 lb/ac
That is, it takes 7 pounds of seed to plant 1 acre. The question asks how many acres can be planted with 1 pound. Clearly, that is 1/7 of the amount of seed required for 1 acre, so 1 pound will plant 1/7 acre.
Select the correct answer.
Which pair of expressions are equivalent?
Answer:
D
Step-by-step explanation:
None of the others make sense. In answer D x+y is the same as x-y+2y because you add the y's and its the same thing as x+y.
Hope It Helped :)
What is the value of x?
A. 15
B. 21.2
C. 10.6
D. 7.5
Answer:
c.10.6
Step-by-step explanation:
we take sin the angle on the length of the side that opposite to it ...
The value of x from the triangle is x = 10.6
What are trigonometric relations?Trigonometry is the study of the relationships between the angles and the lengths of the sides of triangles
The six trigonometric functions are sin , cos , tan , cosec , sec and cot
Let the angle be θ , such that
sin θ = opposite / hypotenuse
cos θ = adjacent / hypotenuse
tan θ = opposite / adjacent
tan θ = sin θ / cos θ
cosec θ = 1/sin θ
sec θ = 1/cos θ
cot θ = 1/tan θ
Given data ,
Let the triangle be represented as ABC
Now , the measure of hypotenuse of the triangle = 15
Let the angle be θ = 45°
From the trigonometric relations ,
sin θ = opposite / hypotenuse
On simplifying the equation , we get
sin 45° = x / 15
where sin 45° = 0.7071
So , the value of x = 0.7071 x 15
The value of x = 10.6
Hence , the value of x from the triangle is x = 10.6
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© There is a bag filled with 3 blue and 4 red marbles.
A marble is taken at random from the bag, the colour is noted and then it is replaced.
Another marble is taken at random.
What is the probability of getting 2 that are different in colour?
Answer: THE ANSWER IS 18/42 IF YOU LOOKED THIS UP FOR HEGARTY MATHS THEN THIS IS RIGHT!!!!! Originally Answered: There is a bag filled with 3 blue and 4 red marbles. A marble is taken at random from the bag, the colour is noted and then it is replaced.
HELP
The container that holds the water for the football team is 2/3 full. After pouring out 4 gallons of water, it is 4/9 full. How many gallons can the container hold?
Answer:
I'm pretty sure this is correct.
2/3 * 3 = 6/9
6/9 + 4/9 = 10/9
Simplified it's 10 1/9, so the final answer is 10 1/9.
Help show work pls :) ill mark brainliest
Answer:
52.2
....
....
...
..
.....
....
Find 6 3/5 divided by 3 1/5 Write in simplest form
Answer:
[tex]\frac{33}{16}[/tex]
Step-by-step explanation:
33/16 is the answer
Calculus problem: A drug manufacturer has developed a time-release capsule with the number of milligrams of the drug in the bloodstream given by
S = 40[tex]x^{\frac{19}{7} }[/tex] − 560[tex]x^{\frac{12}{7} }[/tex] + 1960[tex]x^{\frac{5}{7} }[/tex]
where x is in hours and 0 ≤ x ≤ 7. Find the average number of milligrams of the drug in the bloodstream for the first 7 hours after a capsule is taken. (Round your answer to the nearest whole number.)
Solution: _____ mg
Step-by-step explanation:
You can find your answer by taking integral from 0 to 7 and then dividing it by 7.
Decompose 3p-1/p^2-1 into partial functions
(please select from the choices)
Answer:
a)
Step-by-step explanation:
[tex]\dfrac{3p-1}{p^2-1}[/tex]
Factorize the denominator:
[tex]\implies \dfrac{3p-1}{(p+1)(p-1)}[/tex]
Therefore,
[tex]\implies \dfrac{3p-1}{(p+1)(p-1)}=\dfrac{A}{p+1}+\dfrac{B}{p-1}[/tex]
[tex]\implies 3p-1=A(p-1)}+B(p+1)[/tex]
When p = 1:
[tex]\implies 2=A(0)}+B(2)[/tex]
[tex]\implies B=1[/tex]
When p = -1:
[tex]\implies -4=A(-2)}+B(0)[/tex]
[tex]\implies A=2[/tex]
Therefore,
[tex]\implies \dfrac{3p-1}{(p+1)(p-1)}=\dfrac{2}{p+1}+\dfrac{1}{p-1}[/tex]
Amy spent 3/10 of her 365. 25 paycheck on new winter clothing how much money does Amy have left
.3 * 365.25 = 109.575
365 - 109.575 = 255.425 = $255.43
HELPPP PLSSSSSSSSS
There are 15 players on the basketball team. The cost of traveling to a tournament
is $650 plus $75 per player. If the team has a $1500 budget for this tournament,
how many of the 15 players can go? Write an inequality and solve the problem.
In the table below, y is a linear function of x.
х
y
5
3
5
13
7
-11
What is the value of y when x = 0?
Answer:
y= -7
Step-by-step explanation:
y=ax+b
Find a where a=y2-y1 /x2-x1
y2=13,y1=5 x2=5,x1=3
substituting the values
a=13-5/5-2
a=8/2
a=4
substituting a into the formular
y=4x+b
taking x and y values let say 3 and 5 for x and y
the equation becomes
5=4(3)+b
5=12+b
5-12=b
-7=b
substituting the values of a and b into the equation
y=4x-7
when x=0
y=4(0)-7
y=0-7
y=-7
so when x=0,y=-7
Pythagoras lost 13 pounds from January to June. If Pythagoras gains 1.2 times Euclid’s weight, Pythagoras’s weight would still be pound less than he did in January. What is Euclid’s weight?
(a) Write an equation that represents the scenario. Begin by defining your variable.
(b) Solve the equation. Show your work.
(c) What is Euclid’s weight?
(d) Jake adopts a third dog, Riemann. Riemann weighs exactly twice what Euclid weighs. The combined weight of the three dogs is pounds. What is Riemann’s weight, and what is Pythagoras’s weight? Show your work.
Answer:The weight of Euclid is 10.625 pounds, and the weight of Riemann is 21.25 pounds.
Let the current weight of Euclid = x
Let the current weight of Pythagoras = T
Let the January weight of Pythagoras = y
The expression that represents the given scenario is written as;
when Pythagoras lost 13 pounds: T = y - 13
when Pythagoras gains 1.2 times Euclid's weight: = T + 1.2x
when Pythagoras weight is 1/4 pound less than weight in January:
T + 1.2x + 0.25 = y
y- 13 + 1.2x + 0.25 = y
1.2x - 12.75 = 0
Euclid's weight is calculated as follows;
1.2x = 12.75
The weight of Riemann is calculated as follows;
A slot machine has 3 dials. Each dial has 40 positions, two of which are "Jackpot." To win the jackpot, all three dials must be in the "Jackpot" position. Assuming each play spins the dials and stops each independently and randomly, what are the odds of one play winning the jackpot?
Answer: there is a 1.2% of winning
Step-by-step explanation: there is a 1.2% chance of winning.
Step-by-step explanation:
The odds of one player that wins the jackpot should be 0.00156%.
Given that,
There are 3 dials.
In each dial, there are 40 positions.
So, the probability of receiving the jackpot should be \frac{1}{40}
40
1
Now the odds of one player that wins the jackpot should be
\begin{gathered}= \frac{1}{40} \times \frac{1}{40} \times \frac{1}{40} \\\\\end{gathered}
=
40
1
×
40
1
×
40
1
= 0.00156%
Therefore we can conclude that the odds of one player that wins the jackpot should be 0.00156%.
The train was late is a compound or simple sentence
Answer:
This would be a compound sentence
Step-by-step explanation:
Hope that helps
a glass fish tank in the shape of a rectangular prism has a base that measures 22 inches by 12 inches. If the tank can hold a maximum of 3,960 cubic inches of water, how much glass was used to construct the tank?
Answer:
582.76 square inches of glass is required to construct the tank.
Step-by-step explanation:
Base dimension = 22×12 inches
volume of fish tank =3960 cubic inches
volume= l×b×h
3960=22×12×h
h=3960/(22×12)
h=3960/462
h=8.57 inches
the glass used=lateral surface area of a rectangular prism
=2h(l+b)
=2×8.57(22+12)
=17.14(34)
=572.76square inches
For the function f(x)=x^2−12x+32, find x when f(x)=−4.
Answer:
X=6
Step-by-step explanation:
Explanation in the picture
1. Substitute f(x) = -4 into f(x)= x^2 - 12x + 32
Step-by-step explanation:
f(x)=x^2-12x+32
divide both sides by 4
answer -1/4x^2+3x-8
sorry if im wrong lol
If 500’ roll of wire costs 18.44 what I’d the first of wire per foot
Answer:
27.1149675 feet (27 feet 1⅜ inch)
Step-by-step explanation:
i think
A music-streaming service charges $9 per month for a single user. Additional users within the same household can be added for $3 per month. Write an equation that shows how the monthly cost, y, depends on the number of additional users in the household, X. Do not include dollar signs in the equation. y=
The equation that shows the monthly cost is y = 9 + 3x
What is the equation that represents the monthly cost?
The monthly cost is a function of the charge for a single user and the cost of additional users. The monthly cost increases with the number of additional users.
The charge for a single user can be considered a fixed cost since it remains constant while the cost of the additional user can be considered a variable cost since it increases with the number of users.
Y = 9 + 3x
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Answer: Y = 3x + 9
Step-by-step explanation:
Which expressions are equivalent to 6 +(-x) + 2x + (- 7) + 2x? Check all that apply. O x + x + 6 - 7 + x O 2x + 2 + x O 3-x + 2x - 4 + 2x O x-1 O x + 1
Answer: that equivalent to the expression 2x+3x+8-3x-2 would be the choices A and C. If you notice, in choice A, you have just combined all the like terms which results in 2x+6 and in Choice C, you have combined all your constants and the the two terms 2x and 3x resulting in 5x-3x+6 which all remain equivalent to he original given expression
Step-by-step explanation:
1 8. 1 (minutes) 0 5 6 g(t) (cubic feet per minute) 12.8 15.1 20.5 18.3 22.7 Grain is being added to a silo. At time t = 0, the silo is empty. The rate at which grain is being added is modeled by the differentiable function g, where g(t) is measured in cubic feet per minute for 0 st 58 minutes. Selected values of g(t) are given in the table above. a. Using the data in the table, approximate g'(3). Using correct units, interpret the meaning of g'(3) in the context of this problem. b. Write an integral expression that represents the total amount of grain added to the silo from time t=0 to time t = 8. Use a right Riemann sum with the four subintervals indicated by the data in the table to approximate the integral. πί c. The grain in the silo is spoiling at a rate modeled by w(t)=32 sin where wſt) is measured in 74 cubic feet per minute for 0 st 58 minutes. Using the result from part (b), approximate the amount of unspoiled grain remaining in the silo at time t = 8. d. Based on the model in part (c), is the amount of unspoiled grain in the silo increasing or decreasing at time t = 6? Show the work that leads to your answer. =
Hi there!
a)
We can approximate g'(3) by finding the slope of g(t) over an interval containing t = 3.
We can use the endpoints t = 1 and t = 5 min for the best estimate.
[tex]slope = \frac{y_2 - y_1}{x_2 - x_1} = \frac{20.5-15.1}{5-1} = \boxed{1.35 \frac{ft^3}{min^2}}[/tex]
This means that the rate of grain being added to the silo is INCREASING at a rate of 1.35 ft³/min². (Or in other words, the grain is being poured at an increasingly greater rate)
b)
The total amount of grain added is the integral of g(t), so:
[tex]\text{total amount of grain} = \int\limits^8_0 {g(t)} \, dt[/tex]
We can do a right riemann sum by using the right endpoints (t = 1, t = 5, t = 6, t = 8) to calculate.
Riemann sums are essentially rectangles added up to calculate an approximate value for the area under a curve.
The bases are the spaces between each value in the chart, while the heights are the values of g(t).
Using the intervals and values in the chart:
[tex]1(15.1) + 4(20.5) + 1(18.3) + 2(22.7) = \boxed{160.8 ft^3}[/tex]
c)
We can subtract the two integrals to find the total amount of unspoiled grain.
With g(t) being fresh grain and w(t) being spoiled grain, let y(t) represent unspoiled grain.
[tex]y(t) = \int\limits^8_0 {g(t)} \, dt - \int\limits^8_0 {w(t)} \, dt[/tex]
Use a calculator to evaluate:
[tex]y(t) = 160.8 - \int\limits^8_0 {w(t)} \, dt = 160.8 - 99.05 = \boxed{61.749 ft^3}[/tex]
d)
We can do the first derivative test to determine whether the amount of grain is increasing or decreasing. (Whether the first derivative is positive or negative at this value).
For the above integral, we know that the derivative is:
[tex]y'(t) = g(t) - w(t)[/tex]
Plug in the values for t = 6:
[tex]w(6) = 32 \cdot \sqrt{sin(\frac{\pi (6)}{74})} = 16.06[/tex]
[tex]y'(6) = g(6) - w(6) = 18.3 - 16.06 = 2.23 \frac{ft^3}{min}[/tex]
This value is POSITIVE, so the amount of unspoiled grain is INCREASING.
What is the measure of angle x?
Answer:
83
Step-by-step explanation:
all triangles =180° total
180-53-44=83°
To find the height of a pole, a surveyor moves 150 feet away from the base of the pole and then, with a transit 4 feet tall, measures the angle of elevation to the top of the pole to be 42°. To the nearest foot, what is the height of the pole?
Answer: The answer is 139 feet
H = height of the pole =?
BC = ED = height of the transit = 4 ft
CD = BE = distance moved away from the base of the pole = 140 ft
Consider the ΔABE
tan44 = AE/BE
tan44 = h/140
h = 140 tan44
h = 135.2 ft
H = height of pole = AE + ED = h + ED = 135.2 + 4
H = 139.2 ft
Step-by-step explanation:
NO LINKS!!! Please help me with this problem. Part 5
The width of the Mississippi River at the St. Louis riverfront is approximately 1649.984 feet.
How to determine the width of the Mississippi River
After apply Pythagorean theorem and angle properties for triangles, we have the following geometric diagram, attached below. By the law of the sine we can obtain the width of the Mississippi river ([tex]CD[/tex]), in feet:
[tex]\frac{2163.747\,ft}{\sin 123.690^{\circ}} = \frac{CD}{\sin 39.382^{\circ}}[/tex] (1)
[tex]CD \approx 1649.984\,ft[/tex]
The width of the Mississippi River at the St. Louis riverfront is approximately 1649.984 feet. [tex]\blacksquare[/tex]
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