According to the census data, the population of China is more than the population of US by a factor 4.2
How to find how many times greater was the population of China over US populationGiven data
population of China = 1.3x10^9
population of US = 308,745,538
population of china = 1.3x10^9. can be rewritten as = 1,300,000,000
comparing the both figures representing population. we divide the population of China by the population of US
let the number of times the population of china is greater than population of US be x, such that
308,745,538 * x = 1,300,000,000
308,745,538x = 1,300,000,000
x = 1,300,000,000 / 308,745,538
x = 4.2106
x ≅ 4.2
We therefore say that the population of china is more than the population of US by a factor 4.2
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help please.
-1/3 - (-3/5)
Answer:
Step-by-step explanation:
93959453
Find the midpoint of the line segment joining points A and B
A(8,- 7); B(2,3)
(5 , -2)
Step-by-step explanation:
mid point = ( (X1 + X2)/2 , (Y1 + Y2)/2 )
= ( (8 + 2)/2 , (-7 + 3)/2 )
= (5 , -2)
COORDINATE GEOMETRY Find the measures of the sides of ΔJ K L and classify each triangle by the measures of its sides. (Lesson 4-1)
J(9,9), K(12,14), L(14,6)
The measure of the sides of ΔJKL is 17.26 units.
What do we mean by a triangle?A triangle is a three-edged polygon with three vertices. It is a fundamental shape in geometry. Triangle ABC denotes a triangle with vertices A, B, and C. In Euclidean geometry, any three non-collinear points define a unique triangle and, by extension, a unique plane.So,
The formula of perimeter: √√(x₂−x₁)²+(y₂−y₁)²
Filling the values in the formula, we obtain:
= √(12−9)²+(14−9)²= 17.26 unitsThen, each side of the triangle will be: 17.26 units
Therefore, a measure of the sides of ΔJKL is 17.26 units.
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i need help solving this problem
Step-by-step explanation:
or, 55° = (4x - 1)° [ vertically opposite angle ]
or, 55° + 1° = (4x)°
or, 56° = (4x)°
or, 56°/4° = x
or, x = 14°
Therefore the value of x is 14° .
An investor puts $1760.25 into
an insurance policy that pays
6.5% simple annual interest.
If no additional investment is made
into the policy, how much interest
should the investor expect at the end
of 15 years?
(Round to the nearest cent.)
The investor should expect $1716.24375 at the end of 15 years .
Formula for calculation of Simple Interest :
Simple Interest = ( Rate * Principal * no . of years ) / 100 , when no additional investment is made .
Here , principal = $1760.25 , rate = 6.5 , no . of years = 15 .
Substituting values in formula above ,
SI = ( 6.5 * 1760.25 * 15 ) / 100
= 1716.24375
Hence , the investor should expect $1716.24375 at the end
of 15 years .
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Converting Units of Rates
Nina can ride her bike 63,360 feet in 3,400 seconds, and Sophia can ride her bike 10 miles in 1 hour. What is Nina's
rate in miles per hour if there are 5,280 feet in a mile?
Which girl bikes faster?
Nina's rate in miles per hour is 12.711 and Nina bikes faster than Sophia.
Nina's speed can also be defined as her Average Speed.
Similarly, Sophias's speed can also be defined as her Average Speed.
We have Sophia's speed = 10 miles in hour = 10 miles per hour
What is average speed and average?
Average speed is the total distance travelled by an object to the total time taken. means,
[tex]Average Speed = \frac{Total Distance}{Total Time }\\[/tex]
Total Distance covered by Nina = 63,360ft.
[tex]1 \ mile = 5280 \ feet\\[/tex]
So,Nina's Distance (in miles) [tex]\frac{63360}{5280}= 12 \ miles[/tex]
Nina's Time (in hour) [tex]\frac{3400}{60*60}= 0.944 \ hour[/tex]
Nina's Average Speed = [tex]\frac{12}{0.944}= 12.711 \ miles/hour[/tex]
So, Nina's Average Speed = 12.711 miles per hour
Since, Sophia's Average Speed = 10 miles per hour
Therefore, Nina bikes faster on a average speed of 12.711 miles per hour.
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Nina's rate in miles per hour is 12.711 and Nina bikes faster than Sophia.
Nina's speed can also be defined as her Average Speed.
Similarly, Sophias's speed can also be defined as her Average Speed.
We have Sophia's speed = 10 miles in hour = 10 miles per hour
What is average speed and average?
Average speed is the total distance travelled by an object to the total time taken. means,
[tex]Average Speed = \frac{Total Distance}{Total Time }\\[/tex]
Total Distance covered by Nina = 63,360ft
1 mile = 5280 feet
So,Nina's Distance (in miles) [tex]\frac{63360}{5280}= 12 \ miles[/tex]
Nina's Time (in hour) [tex]\frac{3400}{60*60}= 0.944 \ hour[/tex]
Nina's Average Speed = [tex]\frac{12}{0.944}= 12.711 \ miles \ / \ hour[/tex]
So, Nina's Average Speed = 12.711 miles per hour
Since, Sophia's Average Speed = 10 miles per hour
Therefore, Nina bikes faster on a average speed of 12.711 miles per hour.
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Classify each variable according to the set of numbers that best describes its values.
the number of times n a ball bounces; the height h from which the ball is dropped
The categorization of each variable according to the group of numbers that best captures its values is shown below:
Any integer from 0 to n.
Any number from 0 to h.
What is a variable?Any mathematical object can be represented by a variable in mathematics as a symbol and placeholder. A variable can, for example, represent a number, a vector, a matrix, a function, the argument of a function, a set, or a set's component.Numerous issues are resolved in a single computation by using variables in algebraic calculations as if they were explicit integers.For instance, by exchanging the variables that represent them in the quadratic formula with the numerical values of the coefficients in any given quadratic equation, the quadratic formula may solve any quadratic equation.In mathematical logic, a variable is either a sign for an undefined word of the theory (a "meta-variable") or a fundamental item of the theory that is changed without considering any potential intuitive meaning.To know more about variable, refer to the following link:
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The temperature of an object goes up by 1k. how much did it go up in degrees fahrenheit and how much in degrees celsius?
Given that the temperature of an object goes up by 1.0 Kelvin, the rise in degrees Fahrenheit and Celsius are -457.87°F and 272.15°C respectively.
What is the value of 1 Kelvin in in degrees Fahrenheit and Celsius?The formula used in converting temperature from Kelvin to Fahrenheit is expressed as;
(( x - 273.15 ) × 9/5 + 32)°F
Also, to convert temperature form Kelvin to Celsius, we use;
( x - 273.15)°C
Given that;
Temperature goes up by 1 Kelvin1 Kelvin in degrees Fahrenheit = ?1 Kelvin in degrees Celsius = ?Convert 1 Kelvin to degrees Fahrenheit.
(( x - 273.15 ) × 9/5 + 32)°F
(( 1 - 273.15 ) × 9/5 + 32)°F
( 272.15 × 9/5 + 32)°F
( -489.87 + 32)°F
-457.87°F
Convert 1 Kelvin to degrees Celsius.
( x - 273.15)°C
( 1 - 273.15)°C
272.15°C
Given that the temperature of an object goes up by 1.0 Kelvin, the rise in degrees Fahrenheit and Celsius are -457.87°F and 272.15°C respectively.
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Choose the number sentence that illustrates the distributive property of multiplication over addition.
A. 5x (7+2) = (5+7) × (5+2)
B. 5x (7+2) = (5 × 7) +2
C. 5x (7+2) = (5 × 7) + (5 × 2)
Answer:its
a80
b16
c60
Step-by-step explanation:
Answer:
Step-by-step explanation:
C. 5 × (7 + 2) = (5 × 7) + (5 × 2)
how much was the original price of the ticket? Pls help answer with detailed explanation
Answer: the original price of the ticket was $42
Step-by-step explanation:
[tex]Let's\ make\ a\ proportion:[/tex]
$44.92 - 107%
$x - 100%
[tex]\displaystyle\\x=\frac{44.92*100}{107} \\\\x=\frac{4492}{107} \\\\x=42[/tex]
4m-4=4m
a) many solutions
b) no solutions
Answer: The input is a contradiction: it has no solutions
1st step
4m - 4 = 4m
4m - 4 + 4 = 4m + 4
2nd step -
4m = 4m + 4
3rd step -
4m = 4m +4
4m - 4m = 4m + 4 - 4m
4th step -
Combine like terms
0 = 4
Has No Solutions.
identify all the numbered angles that are congruent to the given angle. Justify your answers.
A theater director buys props-for
$116.20 and costumes for $494.85. He
has $194.27 left. How much money did
he have to start?
Answer:
$805.32
Step-by-step explanation:
$116.20 + $494.85 + $194.27 = $805.32
He had $805.32 to start.
julia ordered 2 hamburgers and steve ordered 3 hamburgers. If their total bill was $7.50, how much did each hamburger cost?
Answer:
$1.50
Step-by-step explanation:
there are 5 burgers since 2+3 is five. Divide 7.50 by five. The answer is 1.50.
$1.50
Because 2+3=5 and once you 7.5÷5 it equals 1.5.
If g+9=4 and h-8--3, what is the
value of g + h?
Answer:
g + h = 6
Step-by-step explanation:
We are told that:
• [tex]g + 9 = 4[/tex]
• [tex]h- 8=3[/tex].
To calculate the value of g + h, we have to rearrange the above equations to make g and h their respective subjects:
• [tex]g + 9 = 4[/tex]
⇒ [tex]g + 9 - 9 = 4 - 9[/tex] [Subtracting 9 from both sides]
⇒ [tex]g = \bf -5[/tex]
• [tex]h- 8=3[/tex]
⇒ [tex]h - 8 + 8 = 3 + 8[/tex] [Adding 8 to both sides]
⇒ [tex]h = \bf 11[/tex]
Now that we know the values of g and h, we can find the value of g + h:
[tex]g + h[/tex]
[tex]= -5 + 11[/tex]
[tex]= \bf 6[/tex]
Therefore the value of g + h is 6.
URGENT DUE TODAY PLEASE HELP
Lines k and p are parallel. If m<1 = 5x + 1 and m<2 = 8x - 20, find
the measure of angle 2.
Evaluate the expression for the given value of the variable
|x-19| ; x = 10
Answer:
|(10)-19| = |-9| = 9
Step-by-step explanation: Just plug it in. Oh btw the absolute value means distance from 0.
Copy trapezoid CDEF and point P . Then use a protractor and ruler to draw a 50° rotation of CDEF about point P .
Repeat steps 1-3 for vertices C,E and F to finish the trapezoid .
Describe the trapezoid shape.
A quadrilateral with one set of parallel opposite sides is referred to as a trapezoid. It can have congruent sides (isosceles) and right angles (a right trapezoid), but neither is necessary.
Step 1 - Draw line DP.
Step 2 - Use a protractor to create a 50° angle with DP'.
Step 3 - Use a ruler to draw D such that DP' = DP
Step 4 - Repeat steps 1-3 for vertices C,E and F to finish the trapezoid .
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diego compro 12 cuadernos que le costaron 96. 000 ¿cuanto le costo cada uno ?
I need this answered answered please
One is a constant, as it has no variable besides it.
Malik walks 5 blocks per minute. How many blocks will he walk in 6 minutes?
5 blocks
(18, -7) and (18, 2) m =
Answer:
m = undefined
Step-by-step explanation:
I'm assuming it's "m" as in y=mx+b
(18, -7), (18, 2)
(x₁, y₁) (x₂, y₂)
y₂ - y₁ 2 - (-7) 9
m = ----------- = ------------ = ---------- = undefined
x₂ - x₁ 18 - 18 0
I hope this helps!
is (36^7 + 6^13) divisible by 7?
Answer:
(36^7+6^13) is divisible by 7.
Step-by-step explanation:
(36^7+6^13)
First, solve the parentheses and exponents within it.
36^7=36*36*36*36*36*36*36=78364164096
6^13=6*6*6*6*6*6*6*6*6*6*6*6*6=13060694016
Add 78364164096 and 13060694016.
It equals 91424858112.
Divide 91424858112 by 7.
It results in 13060694016.
Hence, yes.
Hope this helps.
1. How would you write 2 × 2 × 2 using exponents?
(1 point)
02×3
023
032
2. Rewrite the following expression using exponents.
3×3 × 3× 3 × 3 x3
(1 point)
036
035
O
63
3. What is the value of 4”4? (1 point)
016
064
0256
4. What is the value of 9”2? (1 point)
018
081
0729
5. What is the value of 8”3
024
064
0512
Answer:
[tex]1) \: {2}^{3} \\ 2) \: {3}^{6} \\ 3) \: {4}^{4} = 4 \times 4 \times 4 \times 4 = 256[/tex]
The lunch cost 32.00 and sales taxes was 4.45. If you plan to tip 20% find the total amount you need to pay for lunch
The total amount that you need to pay for the lunch after the sales tax and the tip will be $ 42.85.
We are given that:
The cost of lunch = $ 32
Sales tax = $ 4.45
Tip = 20 %
So, the tip will be calculated by finding the percentage of cost that you are planning to pay has a tip.
Tip = 20 % of $ 32
Tip = 20 / 100 × $ 32
Tip = 0.2 × $ 32
Tip = $ 6.4
Total amount needed to be paid for the lunch = $ 32.00 + $ 4.45 + $ 6.40
Total amount = $ 42.85
Therefore, we get that, the total amount that you need to pay for the lunch after the sales tax and the tip will be $ 42.85.
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solve 2x + 5y = -1for y. Then find the value of y when x=-2
solve 2xy - x = 3for y. Then find the value for y when x=2
In equation (1) the value of y = 3/5 and In equation (2) the value of y = 5/4
In the given statement is
Solve 2x + 5y = -1 for y.
To find the value of y when x= -2
Now, Equation is 2x + 5y = -1 …..(1)
Put the value of x = -2 in eq. 1
2 (-2) + 5y = -1
-4 + 5y = -1
5y = -1 + 4
y = 3/5
Again, Solve 2xy - x = 3 for y
To find the value of y when x = 2
Now, Equation is : 2xy - x = 3 ….(2)
Put the value of x = 2 in eq. (2)
2(2)y - 2 = 3
4y - 2 = 3
4y = 5
y = 5/4
Hence, In equation (1) the value of y = 3/5 and In equation (2) the value of y = 5/4
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Write an equation of a parabola with the given information.
vertex (0,0) , focus (0, 1/2)
The equation that defines the parabola with vertex at the point and focus at (0, 1/2) is
y = 2x²
What is a parabola?The parabola is a geometric shape that is formed from the intersection of a vertical plane in a cone.
The parabola is a quadratic function, it is composed of a vertex, or inflection point, a focus and a directrix.
In this case we have the vertex of the parabola at the point (0,0) and the focus at the point (0, 1/2) this is displaced on the y-axis upward, so the parabola is of the form.
y = x²
Canonical equation
(y - yo) = 4p(x - xo)
Vertex (0, 0)xo, yo = (0 , 0)
Focus:
f = (0, 0 + p)
(y- 0) = 4*0.5(x - 0)²
y = 2x²
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Evaluate |c2 + b2|, given a = 5, b = -3, and c = -2.
10
6
2
13
6 of 6
Triangles A and B are congruent.
Find the area of triangle A. Give your answer to 1 dp.
area =
17cm
108 cm²
area = cm²
A
Not drawn accurately.
B
12cm
O
F
You may use
Get help
Report a mista
On-screen keyp
Che
Ski
Area of triangle A is 72.2 cm square.
Here, we are given that triangles A and B, as shown in the figure are congruent to each other.
They are also both right angle triangles.
The length of the hypotenuse of A is 17cm
and the height of triangle be = 12cm
But as these two are congruent,
height of triangle A will also be 12cm.
Now, according to Pythagoras theorem,
[tex]hypotenuse^{2} = base^{2} +height^{2}[/tex]
[tex]17^{2}[/tex] = [tex]12^{2}[/tex] + [tex]base^{2}[/tex]
289 = 144 + [tex]base^{2}[/tex]
[tex]base^{2}[/tex] = 145
base = 12.04
Thus, the area of the triangles = 1/2 * base height
= 1/2 x 12 x 12.04
= 72.2
Thus the area of triangle A will be 72.2 cm square.
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evaluate the expression 13 divided by (2.5 - |-3 1/8|) times 3 to the third power
Answer: -561.6
Step-by-step explanation:
First, recall PEMDAS (Parenthesis, Exponents, Multiply, Divide, Add, Subtract)
In the equation, we need to work through (2.5 - |-3 1/8|) first.
The absolute value of |-3 1/8| is 3 1/8
We change 3 1/8 to a decimal
3 1/8 = 3.125
Now Subtract (2.5 - 3.125)
This equals -0.625
Next, divide 13 by -0.625
13 ÷ -0.625 = -20.8
Then, multiply -20.8 by 3³
3³ = 27
So -20.8 × 27 = -561.6
