Answer:
85.7 %
Step-by-step explanation:
=> 35$-5$ = 30$
%age decrease:
=> [tex]\frac{30}{35}*100[/tex]
=> 85.7 %
Answer:
85.7 %
Step-by-step explanation:
35$-5$ = 30$
\frac{30}{35} * 100
= 85.7%
heeeeeeeeeeeeeeeeelp
Answer:
230 cm squared
Step-by-step explanation:
Split the shape into a triangle and a rectangle
The area of a triangle is base x height / 2
20 x 9= 180/2= 90 (9 because you do 16-7 to find height of triangle)
Find the area of the rectangle=
7 x 20= 140
Add them up
140+90= 230cm squared
I hope this helped :)
Answer:
230 cm squared
Step-by-step explanation:
Question is attached below, Good Luck! I will Mark Brainliest for best answer!
Answer:
1960 cm^2
Step-by-step explanation:
Surface area:
Area of cross section x 2 = 1/2 x 20 x 21 x 2 = 420 cm^2
Area of slope = 29 x 22 = 638cm^2
Area of base = 22 x 20 = 440cm^2
Area of back = 21 x 22 = 462cm^2
Total Surface area = 462+440+638+420 = 1960cm^2
Hope this helps
Brainliest??? Which inequality is represented by this graph.
Answer:
Step-by-step explanation:
D is the answer
Expand and simplify . 2xy(5y-3x)-6xy(4y-2x) PLEASE HELP. BEST ANSWER RECIEVES A BRIANLIEST
Answer:
6x²y-14xy²
Step-by-step explanation:
2xy(5y-3x)-6xy(4y-2x)
opening brackets
=10xy²-6x²y-24xy²+12x²y
=10xy²-24xy²-6x²y+12x²y
=-14xy²+6x²y
=6x²y-14xy²
Answer:
[tex]6x^2y-14xy^2[/tex]
Step-by-step explanation:
[tex]2xy(5y-3x)-6xy(4y-2x)[/tex]
[tex]2xy(5y)+2xy(-3x)-6xy(4y)-6xy(-2x)[/tex]
[tex]10xy^2-6x^2y-24xy^2+12x^2y[/tex]
[tex]-6x^2y+12x^2y+10xy^2-24xy^2[/tex]
[tex]6x^2y-14xy^2[/tex]
Divide the following amounts to the given ratio. A.)28kg in the ratio 2:5=. B.)1km in the room 19:1 =. C.)100 in the ratio 2:3:5 =.
The cost of a diamond varies as the square of its weight. A diamond weighing 20 decigrams costs Rs. 4,800. Find the cost of a diamond of the same kind weighing 8 decigrams.
Answer:
768
Step-by-step explanation:
let C represent cost and w weight, then the equation relating them is
C = kw² ← k is the constant of variation
To find k use the condition w = 20, C = 4800, that is
4800 = k × 20² = 400k ( divide both sides by 400 )
12 = k
C = 12w² ← equation of variation
When w = 8, then
C = 12 × 8² = 12 × 64 = 768
Which of the following is false about investing with borrowed money? (5 points)
FOR 15 POINTS I WILL GIVE BRAINLEST IF YOU ARE CORRECT! What is the solution to the system that is created by the equation y = 2 x + 10 and the graph shown below? On a coordinate plane, a line goes through (negative 2, 0) and (0, 2). (–8, –6) (–4, –2) (0, 2) (2, 4)
The solution point is (4,2).
Step-by-step explanation:
Equation of straight line passing through the points (0,0) and (4,2) is given by
⇒ 2y = x ............ (1)
And the other straight line is y = - x + 6 .............. (2)
Now, solving equations (1) and (2) we get, y = - 2y + 6
⇒ 3y = 6
⇒ y = 2
And from equation (1) we get, x = 2y = 4
Therefore, the solution point is (4,2). (Answer)
Answer:
(-8,-6)
Step-by-step explanation:
This is the real answer for this question and this is a image of the graph
2/3y + 15 = 9
What are the steps for this question
Answer:
see below
Step-by-step explanation:
2/3y + 15 = 9
Subtract 15 from each side
2/3y + 15-15 = 9-15
2/3y = -6
Multiply each side by 3/2 to isolate y
3/2 * 2/3y = -6 *3/2
y = -9
Answer:
y = - 9
Step-by-step explanation:
2/3y + 15 = 9
Subtract 15 on both sides.
2/3y = 9 - 15
2/3y = - 6
Multiply both sides by 3/2.
y = - 6 × 3/2
y = -18/2
y = -9
A principal of $2000 is placed in a savings account at 3% per annum compounded annually. How much is in the account after one year, two years and three years?
Answer:
Step-by-step explanation:
After one year
A=p(1+r/n)^nt
=2000(1+0.03/12)^12*1
=2000(1+0.0025)^12
=2000(1.0025)^12
=2000(1.0304)
=$2060.8
After two-years
A=p(1+r/n)^nt
=2060.8(1+0.03/12)^12*2
=2060.8(1+0.0025)^24
=2060.8(1.0025)^24
=2060.8(1.0618)
=$2188.157
After three years
A=p(1+r/n)^nt
=2188.157(1+0.03/12)^12*3
=2188.157(1+0.0025)^36
=2188.157(1.0025)^36
=2188.157(1.0941)
=$2394.063
Amount in account after one year, two and three years are respectively $2,060 , $2,121.8 and $2,185.45
Given:
Principal amount = $2,000
Rate of interest = 3% = 0.03
Amount in account after one year
A = P(1+r)ⁿ
A = 2,000(1+0.03)¹
A = 2,000(1.03)¹
A = 2,000(1.03)
A = $2,060
Amount in account after two year
A = P(1+r)ⁿ
A = 2,000(1+0.03)²
A = 2,000(1.03)²
A = 2,000(1.0609)
A = $2,121.8
Amount in account after three year
A = P(1+r)ⁿ
A = 2,000(1+0.03)³
A = 2,000(1.03)³
A = 2,000(1.092727)
A = $2,185.45
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if tom spins the spinner 80 times work out an estimate for the number of times the spinner will land on 3 please help me
Answer:
The estimated number of times the spinner will land on 3 is 20.
Step-by-step explanation:
The complete question is:
A four-sided spinner is provided. If Tom spins the spinner 80 times then work out an estimate for the number of times the spinner will land on 3.
Solution:
Assume that the four-sided spinner is unbiased.
That is all the four outcomes are equally likely to be selected.
The probability that the spinner lands on any of the four numbers is:
P(1) = P (2) = P (3) = P (4) = 0.25
It is provided that Tom spins the spinner n = 80 times.
The spinner can land on any of the four numbers independently.
The random variable X, defined as the number of times the spinner lands on 3, follows a Binomial distribution with parameters n = 80 and p = 0.25.
The expected value of X is:
[tex]E(X)=np[/tex]
[tex]=80\times 0.25\\=20[/tex]
Thus, the estimated number of times the spinner will land on 3 is 20.
PLEASE HELP ASAP WILL GIVE BRAINLIEST IF CORRECT
what is 15x + 21x/2??
Answer:
25.5x
Step-by-step explanation:
Simply convert the fraction into a decimal and add.
21/2x = 10.5x
10.5x + 15x = 25.5x
If you want to keep it in fraction form, 15 is 30/2, so,
30x/2 + 21x/2 = 51x/2
Answer:
51x/2
Step-by-step explanation:
Add it like a normal fraction equation
Have them both with the same denominator of 2
30/2 + 21/2
Add the numerators
51/2
Now put the x into the numerator since it started as in the numerator
Answer: 51x/2
Hope this helps!
At the beach, 20% of people have white towels and 58% have blue towels. If
the rest have red, what percentage of the people at the beach have red
towels?
Answer: 22%
Step-by-step explanation: First, you have to add the percetages of the white and blue towels.
20+58=78
Now, you can simply subtract 78% from 100% to get your answer, 22%
A fair six-sided die is thrown,find the probability of getting a 3
Answer:
probability is 1/6
Step-by-step explanation:
there are 6 sides of a die, so each side has a 1/6 chance of getting landed on. you put the amount of desired outcomes over the possibilities.
Peggy has four times as many quarters as nickels she had $2.10 in all how many nickels and how many quarters did she have
Answer:
There are 8 quarters and 2 nickels
Step-by-step explanation:
4 quarters for every 1 nickel
This means that for every 1 dollar, there are 5 cents
Double the statement above
1.05 x 2 = 2.10
There are 8 quarters and 2 nickels
A balloon initially has a volume of 45 L at sea level, where temperature is 25∘C and the pressure is 1.0 atm. It rises to an elevation of 2.0 km, where the temperature is 5.0∘C and the pressure is 0.78 atm. What is the balloon's volume at this height?
Answer:
53.8 L
Step-by-step explanation:
We can use the ideal gas formula that relates pressure, volume and temperature:
[tex]\frac{P_1 V_1}{T_1} = \frac{P_2 V_2}{T_2}[/tex]
where P1 = initial pressure = 1.0 atm
V1 = initial volume = 45 L
T1 = initial temperature = 25°C = 25 + 273 = 298 K
P2 = final pressure = 0.78 atm
V2 = final volume
T2 = final temperature = 5.0°C = 5 + 273 = 278 K
Therefore, the final volume will be:
[tex]\frac{1 * 45}{298} = \frac{0.78 * V_2}{278}\\\\0.151 = 0.002806 V_2\\\\=> V_2 = 0.151 / 0.002806\\\\V_2 = 53.8 L[/tex]
Its volume is 53.8 L
Simplify the product using the distributive property.
(4h - 5)(5h - 3)
20h2 - 13h - 15
20h2 - 37h + 15
20h2 + 13h - 15
20h2 + 37h + 15
Answer:
[tex]20h {}^{2} - 37h + 15[/tex]
[tex]20h {}^{2} - 12h - 25h + 15 \\ = b \: is \: de \: answer[/tex]
answer to this please!
Answer:
-2²
Explanation:
Doing -k² is the same thing as -(k²), so the answer will be negative. However, (-k)² will still be positive. -2² will equal -4.
Need help ASAP please
Answer:
-6,6
Step-by-step explanation:
x^2=36
6*6=36
-6*-6=36
I NEED. HELP PLEASE, THANKS! :)
Answer: A) 7 real zeros and 6 turning points at 0, 2, 4
Step-by-step explanation:
x⁷ - 6x⁶ + 8x⁵
The degree (largest exponent) is 7 so the maximum number of real zeros is 7.
Factor out x⁵
x⁵(x² - 6x + 8)
Factor the quadratic
x⁵(x - 2)(x - 4)
Set each factor equal to 0 and solve for x
x⁵ = 0 --> x = 0 (multiplicity of 5)
x - 2 = 0 --> x = 2
x - 4 = 0 --> x = 4
A line is defined by the equation y = negative x + 3. Which shows the graph of this line?
Answer: The answer would be A.
The coordinates of the line are (0, 3) and (3, 0) hence, the line will pass through these points so, option A is correct.
What is graph?A graph is a structure made up of a collection of things, where some object pairs are conceptually "connected." The items are represented by mathematical abstractions known as vertices, and each pair of connected vertices is referred to as an edge.
Given:
y = negative x + 3
The above phrase can be written as,
y = -x + 3
Calculate the slope as shown below,
Slope = -1
The x-intercept can be calculated as,
0 = -x + 3 (y is zero at the x-axis)
x = 3
The x-intercept can be calculated as,
y = 0 + 3 (y is zero at the x-axis)
y = 3
Mark the coordinates (0, 3) and (3, 0) on the graph and join the points you will get the graph.
The graph is attached below.
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Please help me I posted this 10 times and no one helped me they were saying how I was so dumb
Answer:
Just count the unit squares
Step-by-step explanation:
If you learn this they may call u dumb but if your beginner then count the squares
A coin in flipped 4000 times What is the probability that d will land I N tails
Answer:
250
Step-by-step explanation:
1000/4000
Fund the degree of the followung polynomials.
1. 5xyz
Answer:
3
Step-by-step explanation:
=> 5xyz
Degree of polynomial is summing up the powers of the variable, so it will give you the degree of polynomial
=> Degree of this polynomial = 1+1+1
=> 3
(10x^3y^2/5x^-3y^44)^3
Answer:
given
hope it helps!
Step-by-step explanation:
(10x^3y^2/5x^-3y^44)
= (10/5)(x^3/x^-3)(y^2/y^44)
= (2)(x^6)(y^-42)
= 2x^6y^-42
(2x^6y^-42)^3
= 8x^6*3y^-42*3
= 8x^18y^-126
Answer:
8x^18/ y^126.
Step-by-step explanation:
(10x^3y^2/5x^-3y^44)^3
= 1000x^9 * (0.2x^3)^3y^6 / y^132
= 1000x^9 * 0.008x^9 / y^126
= 8x^18/ y^126
If tanθ = 1/3, then secθ = _____.
Answer:
sec x = √10 /3
Step-by-step explanation:
tanx = 1/3
tan²x = (1/3)²
= 1/9
Trigonometric identity
sec²x - tan²x = 1
sec²x = 1 + tan²x
sec²x = 1 + 1/9
= 10/9
Now, sec x = √(10/9)
= √10 / 3
Hope this answer helps you....
What can be determined from the table? Check all that
apply.
The independent variable is the number of gallons.
Liters is a function of Gallons.
The equation l = 3.79g represents the table.
As the number of gallons increases, the number of
liters increases.
This is a function because every input has exactly
one output
Answer:
a, b, d, e
Step-by-step explanation:
Independent var is the # of gallons: true (generally graphs go in indep, dep format)
liters is a function of gallons: true
l = 3.79g is false, as 1 liter is not 3.79 gallons, but the other way around
as the number of gallons increases, the number of liters increases: true because this function has a positive slope
this is a function because every input has exactly 1 output: true
A function assigns the values. All the statements are true.
What is a Function?A function assigns the value of each element of one set to the other specific element of another set.
A.) The independent variable is the number of gallons.
The statement holds true, generally when a table is formed x is on the left side of the table which is an independent variable and y is on the right side which is the dependent variable.
B.) Liters are a function of Gallons.
The statement is true, generally when a table is formed x is on the left side of the table which is an independent variable and y is on the right side which is the dependent variable. And y is a function of x, similarly, liters is the function of gallons.
C.) The equation l = 3.79g represents the table.
The equation is true if we substitue the value of gallons in the place of g, the output will be the value of l. Thus, the equation is true.
[tex]\rm l = 3.79g\\\\l = 3.79(1\ gallons) \rightarrow l=3.79\ liters\\\\l = 3.79(2\ gallons) \rightarrow l=7.58\ liters\\\\l = 3.79(6\ gallons) \rightarrow l=22.74\ liters[/tex]
D.) As the number of gallons increases, the number of litres increases.
The statement holds true and can be observed in the table.
E.) This is a function because every input has exactly one output.
The statement holds true and can be observed in the table.
Hence, all the statements are true.
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p(p+a2)
; use a = 7 and p = 6
6
Step-by-step explanation:
6(6+7(2))
6(6+14)
6(20)
120
Can you please help me?
Answer:
Area: 7, because there are 7 squares.
Perimeter: 14.
Step-by-step explanation:
Simplify 16-3(8-3)^2÷5
Answer:
1
Step-by-step explanation:
PODMAS:-
16-3(8-3)²/5
=16-3(5)²/5
=16-3(25)/5
=16-3(5)
=16-15
= 1
Answer:
65
Step-by-step explanation:
=> [tex]\frac{16-3(8-3)^2}{5}[/tex]
=> [tex]\frac{13(5)^2}{5}[/tex]
=> [tex]\frac{13(25)}{5}[/tex]
=> 13 × 5
=> 65