Answer:
A
Step-by-step explanation:
Answer: A
Step-by-step explanation:
How many times larger is 4 x 10 12 than 8 x 10 7?
Answer:
50000 times
Step-by-step explanation:
Since these are given in scientific notation, we can convert them to have the same powers of 10. Converting 4*10^12 to something times 10^7, we can get 4*10^5*10^7. So we divide 400000 by 8 to see how many times larger it is than 8. So we get 50000 times as our answer.
Final answer:
To determine how many times larger [tex]4 * 10^{12}[/tex] is than [tex]8 * 10^7[/tex], divide the two numbers to get [tex]0.5 * 10^5[/tex], which simplifies to [tex]5 * 10^4[/tex] or 50,000 times larger.
Explanation:
To find out how many times larger [tex]4 * 10^{12}[/tex] is than [tex]8 * 10^7[/tex], we can divide the first number by the second:
[tex]4 * 10^{12}[/tex] ÷ [tex]8 * 10^7[/tex] = (4/8) x [tex]10^{(12-7)}[/tex]
Now, simplify:
First, simplify the division of the coefficients (4/8) which equals 0.5.
Then, subtract the exponents of 10, which is 12 - 7 = 5.
So, the final answer is:
[tex]0.5 * 10^5 = 5 * 10^4[/tex]
This means that [tex]4 * 10^{12}[/tex] is 50,000 times larger than [tex]8 * 10^7[/tex].
What's the area of this rectangle?
well, the assumption is that is a rectangle, namely it has two equal pairs, so we can just find the length of one of the pairs to get the dimensions.
hmmmm let's say let's get the length of the segment at (-1,-3), (1,3) for its length
and
the length of the segment at (-1, -3), (-4, -2) for its width
[tex]\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ (\stackrel{x_1}{-1}~,~\stackrel{y_1}{-3})\qquad (\stackrel{x_2}{1}~,~\stackrel{y_2}{3})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ \stackrel{length}{L}=\sqrt{[1-(-1)]^2+[3-(-3)]^2}\implies L=\sqrt{(1+1)^2+(3+3)^2} \\\\\\ L=\sqrt{4+36}\implies L=\sqrt{40} \\\\[-0.35em] ~\dotfill[/tex]
[tex]\bf (\stackrel{x_1}{-1}~,~\stackrel{y_1}{-3})\qquad (\stackrel{x_2}{-4}~,~\stackrel{y_2}{-2})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ \stackrel{width}{w}=\sqrt{[-4-(-1)]^2+[-2-(-3)]^2}\implies w=\sqrt{(-4+1)^2+(-2+3)^2} \\\\\\ w=\sqrt{9+1}\implies w=\sqrt{10} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{area of the rectangle}}{A=Lw}\implies \sqrt{40}\cdot \sqrt{10}\implies \sqrt{400}\implies \boxed{20}[/tex]
Can someone please help . Thank you !! :)
Answer:
1000 years
Step-by-step explanation:
1x10^11 is basically 100 billion
1x10^8 is basically 100 million
so 100 billion divided by 100 milllion is basically 1000
so 1000 years
A student measures the mass of an 8cm^3 block of confectioners (powdered) sugar to be 4.49 grams. Determine the density of powdered sugar.
Answer:
D=.56 g/cm^3
Explanation:
Density= mass/volume
D=4.49/8
D=.56 g/cm^3
Hope you get it!
An 8 cm³ block of confectioners sugar that weigh 4.49 grams would have a density of 0.56 g/cm³. Thus, the density of powdered sugar is 0.56 g/cm³
Calculating densityFrom the question, we are to determine the density of the powdered sugar
Density can be calculated by using the formula,
[tex]Density = \frac{Mass}{Volume}[/tex]
From the given information,
Volume = 8 cm³
and Mass = 4.49 g
Putting the parameters into the equation,
[tex]Density = \frac{4.49}{8}[/tex]
Density = 0.56125 g/cm³
Density ≅ 0.56 g/cm³
Hence, the density of powdered sugar is 0.56 g/cm³
Learn more on Calculating density here: https://brainly.com/question/11258429
given the vector v has an initial point (-2,-6) and a terminal point of (1,2) write vector v as a linear combination of the standard unit vector i and j.
Answer:
v=3i+8j
Step-by-step explanation:
The given the vector v has an initial point (-2,-6) and a terminal point of (1,2).
To find the components of vector v, we subtract the terminal points from the initial point to obtain.
v=<1,2>-<-2,-6>
v=<1--2,2--6>
v=<1+2,2+6>
v=<3,8>
As a linear combination of the standard unit vectors.
v=3i+8j
Use the equation below to find a, if b = 5 and c = 12
a = 27 - b - c
Answer: 10
a=27-5-12=10
A= (27-5)=22-12=10
A=10
Cone A is similar to Cone B with a scale factor of 3:5. If the surface area of Cone B is 725 ft2 (squared), find the surface area of Cone A
Answer:
one A has a diameter of 10 inches and Cone B has a diameter of 50 inches. If the cones are similar, find the volume ratio of Cone A to Cone B.
Step-by-step explanation:
The surface area of Cone A when the surface area of Cone B is 725 ft² for the case when Cone A is similar to Cone B with a scale factor of 3:5 is 2013.89 ft²
How does scale factor affects the area and volume of a figure?Similar figure are zoomed in or zoomed out (or just no zoom) version of each other. They are scaled version of each other, and by scale, we mean that each of their dimension(like height, width etc linear quantities) are constant multiple of their similar figure.
So, if a side of a figure is of length L units, and that of its similar figure is of M units, then:
[tex]L = k \times M[/tex]
where 'k' will be called as scale factor.
The linear things grow linearly like length, height etc.
The quantities which are squares or multiple of linear things twice grow by square of scale factor. Thus, we need to multiply or divide by [tex]k^2[/tex]
to get each other corresponding quantity from their similar figures' quantities.
So area of first figure = [tex]k^2 \times[/tex] area of second figureSimilarly, increasing product derived quantities will need increased power of 'k' to get the corresponding quantity. Thus, for volume, it is k cubed. or
Volume of first figure = [tex]k^3 \times[/tex] volume of second figure.It is because we will need to multiply 3 linear quantities to get volume, which results in k getting multiplied 3 times, thus, cubed.
For this case, we're given that:
The scale factor between cone A and cone B is 3:5
That can be taken as: [tex]3/5 = 0.6[/tex] scale factor.
It means,
side length of cone A = [tex]0.6 \times[/tex] corresponding side length of cone B
Also, as given, we have:
Surface area of cone B = 725 ft²
Assume that cone A's surface area is S, then we get:
surface area of cone A = [tex]0.6^2 \times[/tex] surface area of cone B
[tex]725 = 0.6^2 \times S\\S =\dfrac{725}{0.6^2} \approx 2013.89 \: \rm ft^2[/tex]
Thus, the surface area of Cone A when the surface area of Cone B is 725 ft² for the case when Cone A is similar to Cone B with a scale factor of 3:5 is 2013.89 ft²
Learn more about scale factor here:
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What expression represents 2 times the sum of 5 and 7
Answer:
2(5+7)
Step-by-step explanation:
2 times any equation is 2(equation) and our equation is the sum of 5 and 7 which means 5 plus 7, therefore our equation is 2(5+7)
Answer
(5 + 7) · 2
Step-by-step explanation
If we take a look at PEMDAS or BEDMAS whichever one you were taught, multiplication comes before addition. (And unless you are in 2nd grade, you will know that "times" means multiplication, and sum is the result of an addition problem.)
P = Parentheses {|} B = Brackets/Parentheses
That means that anything in parentheses or brackets comes first, no matter what type of problem it is. So, if we add 5 and 7 and then multiply it by two and just rephrase that, we get 2 times the sum of 5 and 7.
Find the Surface area. Round your answer to the nearest hundredth.
A.555.72 ft2
B. 568.40 ft2
C. 570.20 ft2
D. 575.31 ft2
Answer:
C
Step-by-step explanation:
The answer is C.
Hope this helps :)
George rented a cab for his family for a day of sightseeing. The cab company charges $9 to pick up his family from the hotel and $0.25 per mile for the trip. If x represents the number of miles and y represents the total amount George pays, select the equation and the graph that correctly model this situation.
Answer:
1. y=0.25x+9
2. The graph that starts at 9 and the highest number is 11.
NOT THE ONE WITH THE HIGHEST NUMBER 15
Step-by-step explanation:
I got it right on edmentum
The equation that correctly models this situation y=0.25x+9.
What is a linear equation?
A linear equation has one or two variables. No variable in a linear equation is raised to a power greater than 1.No variable is used as the denominator of a fraction. A linear equation is defined as an equation that is written in the form of ax+by=c. When solving the system of linear equations, we will get the values of the variable, which is called the solution of a linear equation.
solving this we will get the valve of Y if x is given.
calculation:-
⇒pickup charges of the cap company= $9
⇒charge for per mile = $0.25
⇒let the total distance traveled is X
⇒total amount George pays (y)= 0.25x+9.
Learn more about linear equations here:-https://brainly.com/question/14323743
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The hypotenuse of a right angle triangle measures 12 units. what is the maximum possible area in square units, of the triangle ?
Answer:
The maximum possible area of the triangle is 36 units²
Step-by-step explanation:
Let
x, y the legs of the right triangle
Applying the Pythagoras Theorem
[tex]12^{2}=x^{2}+y^{2}\\\\144=x^{2}+y^{2}[/tex]
[tex]y=\sqrt{144-x^{2}}[/tex] ----> equation A
The area of the right triangle is equal to
[tex]A=\frac{1}{2}xy[/tex] ----> equation B
substitute equation A in equation B
[tex]A=\frac{1}{2}x(\sqrt{144-x^{2}})[/tex]
Using a graphing tool
The vertex of the graph is a maximum
That means
The x-coordinate of the vertex is the value of x for the maximum possible area of the triangle
The y-coordinate of the vertex is the maximum possible area of the triangle
The vertex is the point (8.485,36)
see the attached figure
therefore
The maximum possible area of the triangle is 36 units²
A type of cracker, rectangular in shape, is stored in a vertical column with all of the crackers stacked directly on top of each other. Each cracker measures 2 inches in length by 1 1/2 inches in width. The volume of the column is 15 inches cubed. If there are 40 crackers in the column, what is the height of each individual cracker?
A-3/40 in
B- 1/8 in
C-1/5 in
D- 3/8 in
Answer:
b 1/8 inch
Step by step
just got right on ed
The height of each individual cracker in the vertical column is 1/8 inches.
What is the height of each individual cracker ?The height of each individual cracker can be determined by dividing the volume of the column by 40 and the area of each cracker.
Area of each cracker = 2 x 1 1/2
= 2 x 3/2 = 3 inches
Height of each individual cracker = 15/40 x 3 = 1/8 inches
To learn more about the volume, please check: https://brainly.com/question/26406747
Triangle FGH is an isosceles right triangle with a hypotenuse that measures 16 units. An altitude, , is drawn from the right angle to the hypotenuse. What is the length of ?
Answer:
8 units
Step-by-step explanation:
mid point of hypotenuse of right angled isosceles triangle is equidistant from three vertices.
length of altitude=16/2=8
The question is incomplete, here is a complete question.
Triangle FGH is an isosceles right triangle with a hypotenuse that measures 16 units. An altitude, GJ, is drawn from the right angle to the hypotenuse.
What is the length of GJ?
A. 2 units
B. 4 units
C. 6 units
D. 8 units
Answer : The correct option is, (D) 8 units
Step-by-step explanation :
Given:
Length FH = 16 unit
As we know that a altitude between the two equal legs of an isosceles triangle creates right angles is a angle and opposite side bisector.
Thus,
Length FJ = Length HJ = [tex]\frac{16}{2}[/tex] = 8 units
As, the triangle is an isosceles. So, length GF = length GH = x unit
First we have to determine the value of 'x'.
Using Pythagoras theorem in ΔFGH :
[tex](Hypotenuse)^2=(Perpendicular)^2+(Base)^2[/tex]
[tex](FH)^2=(GF)^2+(GH)^2[/tex]
Now put all the values in the above expression, we get :
[tex](16)^2=(x)^2+(x)^2[/tex]
[tex]256=2x^2[/tex]
[tex]x^2=128[/tex]
[tex]x=8\sqrt{2}[/tex]
Thus, length GF = length GH = x unit = [tex]8\sqrt{2}[/tex]
Now we have to determine the length GJ.
Using Pythagoras theorem in ΔGJH :
[tex](Hypotenuse)^2=(Perpendicular)^2+(Base)^2[/tex]
[tex](GH)^2=(GJ)^2+(HJ)^2[/tex]
Now put all the values in the above expression, we get :
[tex](8\sqrt{2})^2=(GJ)^2+(8)^2[/tex]
[tex]128=(GJ)^2+64[/tex]
[tex](GJ)^2=128-64[/tex]
[tex](GJ)^2=64[/tex]
[tex]GJ=\sqrt{64}[/tex]
[tex]GJ=8[/tex]
Thus, the length of GJ is, 8 units.
If Siobhan hits a 0.25kg volleyball with a 0.5 N of force , what is the acceleration of the ball ?
Answer:
Acceleration = 2 meters /second^2.
Step-by-step explanation:
Use Newton's Second Law of Motion:
Force = mass * acceleration.
0.5 = 0.25 * a
a = 0.5 / 0.25
a = 2 meters /second^2.
Can someone plz explain compound areas thanks
Answer:
A compound shape is a shape that is made up from other simple shapes. In this article we will be working out the area of a L shape (made up from 2 rectangles). To find the area of a compound shape, follow these simple steps: Step 1: Work out the missing lengths around the edge of the compound shape.
Step-by-step explanation:
The measure of a vertex angle of an isosceles triangle is 120° and the length of a leg is 8 cm. Find the length of a diameter of the circle circumscribed about this triangle.
Answer in CM, please. Thanks!
Answer:
16cm
Step-by-step explanation:
To find the diameter we must first find the radius and multiply by 2.
The isosceles triangle that has the length of a leg to be 8cm and a vertex angle of [tex]120\degree[/tex] that has been circumscribed is shown in the attachment.
We draw a line from the vertex of the isosceles triangle that bisects the base through the center O of the circle.
This implies that [tex]m\angle OAC=60\degree[/tex].
Based on this [tex]m\angle ACO=60\degree[/tex] because the two radii are equal.
It follows that:[tex]m\angle AOC=60\degree[/tex] because sum of angles in a triangle must be 180 degrees.
This means that, triangle AOC is an equilateral triangle, hence all sides are equal.
One side of this equilateral triangle happens to be the side of the leg of the isosceles triangle which is 8cm.
It follows that, the radius of the circle is 8cm.
Therefore the diameter of the circle is 16cm
11 sq root 45-4 sq root 5
Answer:
[tex]29\sqrt{5}[/tex]
Step-by-step explanation:
We want to simplify:
[tex]11\sqrt{45}-4\sqrt{5}[/tex]
We need to simplify the first radical before we can subtract
[tex]11\sqrt{9\times5}-4\sqrt{5}[/tex]
[tex]11\sqrt{9} \times\sqrt{5}-4\sqrt{5}[/tex]
This implies that:
[tex]11\times 3\times\sqrt{5}-4\sqrt{5}[/tex]
[tex]33\sqrt{5}-4\sqrt{5}[/tex]
We have now obtained like surds.
We simplify to get:
[tex]29\sqrt{5}[/tex]
i need help Distribute 7(5-3). What is the expanded form?
Question 3 options:
a (7 x 3) - (7 x 5)
b (7 + 5) - (7 + 3)
c (7 x 5) - (7 x 3)
d(7 x 5) + (7 x 3)
Answer: The answer to your question is C. (7*5) - (7*3)
Step-by-step explanation: because when you have an expression or equation in parentheses, you apply the distributive property to get rid of the parentheses:
The problem will now look like this:
[tex]7(5-3)= (7*5) - (7*3)[/tex]
And if they asked you for the answer in a whole number, it would be 14 because
7*5=35 and 7*3=21
35-21=14
So, therefore, the expanded form would be (7*5) - (7*3)
What is the simplest form of square root 1,764
[tex]\bf \sqrt{1764}~~ \begin{cases} 1764=&2\cdot 2\cdot 3\cdot 3\cdot 7\cdot 7\\ &2^2\cdot 3^2\cdot 7^2\\ &(2\cdot 3\cdot 7)^2\\ &42^2 \end{cases}\implies \sqrt{42^2}\implies 42[/tex]
I promise brainliest and it very simple I promise....
Given the following values, which point would be considered an outlier?
X Y
1 0.9
2 2.1
3 3.2
4 3.9
5 7.4
6 5.8
7 7.2
8 8
9 9.1
A. (2, 2.1)
B. (9, 9.1)
C. (8, 8)
D. (5, 7.4)
Answer:
D (5,7.4)
Step-by-step explanation:
This is because all of the other (x,y) vales are close together in number and this is an outlier because it stands out from the group.
The answer is D. (5, 7.4)
What is the slope of the points (-3, 5) and (-1, 4)?
Answer:
[tex]\large\boxed{\text{The slope}\ m=-\dfrac{1}{2}}[/tex]
Step-by-step explanation:
The formula of a slope:
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
We have the points (-3, 5) and (-1, 4). Substitute:
[tex]m=\dfrac{4-5}{-1-(-3)}=\dfrac{-1}{2}=-\dfrac{1}{2}[/tex]
What is the solution to he equation (y/y-4)-(4/y+4)=3^2/y^2-16
Answer:
[tex]y=\pm i \sqrt{7}[/tex]
Step-by-step explanation:
Given equation is [tex]\frac{y}{\left(y-4\right)}-\frac{4}{\left(y+4\right)}=\frac{3^2}{(y^2-16)}[/tex]
Factor denominators then solve by making denominators equal
[tex]\frac{y}{\left(y-4\right)}-\frac{4}{\left(y+4\right)}=\frac{3^2}{(y^2-16)}[/tex]
[tex]\frac{y}{\left(y-4\right)}-\frac{4}{\left(y+4\right)}=\frac{9}{(y+4)\left(y-4\right)}[/tex]
[tex]\frac{y\left(y+4\right)-4\left(y-4\right)}{\left(y-4\right)\left(y+4\right)}=\frac{9}{(y+4)\left(y-4\right)}[/tex]
[tex]y\left(y+4\right)-4\left(y-4\right)=9[/tex]
[tex]y^2+4y-4y+16=9[/tex]
[tex]y^2=9-16[/tex]
[tex]y^2=-7[/tex]
take squar root of both sides
[tex]y=\pm \sqrt{-7}[/tex]
[tex]y=\pm i \sqrt{7}[/tex]
Hence final answer is [tex]y=\pm i \sqrt{7}[/tex].
Calculate the sales tax on purchases totaling $15,245. The
sales tax rate is 8.25%.
$825
$16,070
$16,502.71
$1,257.71
$15,245
Answer:
D. $1257.71
Step-by-step explanation:
Used my calculator. lol
Answer:
$1257.71.
Step-by-step explanation:
8.25% = 0.0825.
So the sales tax on $15,245
= $15,245 * 0.0825
= $1257.71.
PLEASE PLEASE PLEASE HELP ME
Answer:
[tex]\large\boxed{\dfrac{1}{45}}[/tex]
Step-by-step explanation:
1.
2 yellow marables of 10 all marables
[tex]P(A_1)=\dfrac{2}{10}=\dfrac{1}{5}[/tex]
2.
1 yellow marable of 9 all marables
[tex]P(A_2)=\dfrac{1}{9}[/tex]
[tex]P(A)=P(A_1)\cdot P(A_2)\\\\P(A)=\dfrac{1}{5}\cdot\dfrac{1}{9}=\dfrac{1}{45}[/tex]
Simplify.
(-2x2yz3)(-2x3y4z2)2
(Some of these numbers are exponents, not integers.)
Answer:−8x8y9z7
Step-by-step explanation:
Need Help Fast!!!!!!!!!!!!!!
-5(3)+13
=-15+13
=-2
Answer: g(3)= -2
ANSWER
g(3)=-2
EXPLANATION
The given function is
[tex]g(r) = - 5r + 13[/tex]
We want to find g(3).
We substitute r=3 into the given function to obtain:
[tex]g(3) = - 5 \times 3 + 13[/tex]
Multiply out the first term
[tex]g(3) = - 15 + 13[/tex]
Simplify the result to obtain:
[tex]g(3) = -2[/tex]
Been asking for this for almost a day now lol. Can someone please help me?
Please show your work on why choice C is correct
Brainliest + 40 points
Multiply her pay by the FICA tax rate:
325 x 0.0625 = $20.31
Now look in the table for her pay and then find her number of deductions ( 2) and find what the corresponding number is, then add that to her tax.
See picture:
20.31 + 2 = $22.31
39. Find the length of each arc shown in red. Leave your answer in simplified radical form.
Answer:
The length of the arc shown in red is [tex]\frac{22}{9}\pi\ in[/tex]
Step-by-step explanation:
step 1
Find the circumference of the circle
The circumference is equal to
[tex]C=2\pi r[/tex]
we have
[tex]r=4\ in[/tex]
substitute
[tex]C=2\pi (4)[/tex]
[tex]C=8\pi\ in[/tex]
step 2
Find the length of the arc in red
Remember that the length of the circumference subtends a central angle of 360 degrees
so
by proportion find the length of the arc by a central angle of 110 degrees
[tex]\frac{8\pi}{360}=\frac{x}{110}\\ \\x=8\pi*110/360\\ \\x=\frac{880}{360}\pi\ in[/tex]
Simplify
[tex]\frac{880}{360}\pi=\frac{22}{9}\pi\ in[/tex]
If (-1, y) lies on the graph of y = 3x+1, then y =
0
1/3
1
Answer:
y = -2
Step-by-step explanation:
We have a point (-1,y) on the graph of y = 3x + 1
When x = -1 then,
y = 3(-1) + 1
y = -3 + 1 = -2
Answer:
If the question is "If (-1, y) lies on the graph of y = 3^x+1, then y = 1"
So the answer is 1
Step-by-step explanation:
The area of a rectangle is 4g^2- h^2. Use Factoring to find the dimensions of the rectangle.
Answer: [tex](2g+h)[/tex] and [tex](2g-h)[/tex]
Step-by-step explanation:
The area of a rectangle is obtained by multiplying its lenght by its width.
You know that the area of this rectangle is [tex]4g^2- h^2[/tex], then you need to apply the Difference of squares to find the dimensions of this rectangle.
Remember that the Difference of squares is:
[tex]a^2-b^2=(a+b)(a-b)[/tex]
Then, applying this, you get:
[tex]4g^2- h^2=(2g+h)(2g-h)[/tex]
Therefore, now you know that the dimensions are:
[tex](2g+h)[/tex] and [tex](2g-h)[/tex]
the length and breadth of rectangle are [tex]2g - h[/tex] and [tex]2g + h[/tex] respectively
The given expression for the area of the rectangle is [tex]4g^2 - h^2[/tex]
This expression is a difference of squares, which can be factored using the formula: [tex]a^2 - b^2 = (a - b)(a + b)[/tex]
Now by comparing both equations we can factor as follows:
[tex]4g^2 - h^2 = (2g)^2 - h^2\\\\4g^2 - h^2 = (2g+h)(2g-h)[/tex]
We know that area of a rectangle is a product of its length and breadth so we can say that:
Length: 2g - h
Breadth: 2g + h
So, the length and breadth of rectangle are [tex]2g - h[/tex] and [tex]2g + h[/tex] respectively