Answer: n= 4
Step-by-step explanation:
n+10=2(n+6) where n represents the number
you solve this.
n+10=2n+6
n+10-6=2n
n+4=2n
n=4
An article which costs 17.50 is sold at a loss of 20%.what is the selling price.
I'll give you brainliest and extra points if it's right! :)
The ratio of the sides = 7: 3
The ratio of perimeter = 7: 3
The ratio of the areas = 49: 9
Area of green polygon = 23
Similar Polygons:The polygons which are in the same shape but different in size are known as similar polygons. For similar polygons, the ratio of sides is known as the scale factor which is equal to the ratio of perimeters. Here the ratio of the areas is the squares of the scale factor.
Note:
Area of a hexagon = [ 3√3 ]/2 × side²Here we have two polygons
Side of the yellow polygon = 7 units
By the given formulas,
Perimeter of polygon = 6(7) = 42 units
Area of the polygon = 127 units²
Side of the green polygon = 3 units
Perimeter of polygon = 6(3) = 18 units
Area of Polygon = (3√3)/2 × (3)² = 23.383 ≅ 23
The ratio of the sides of polygons yellow to green = 7: 3
The ratio of perimeter = 42: 18 = 7: 3
The ratio of the areas = (7/3)² = 49/9
=> 49: 9
Therefore,
The ratio of the sides = 7: 3
The ratio of perimeter = 7: 3
The ratio of the areas = 49: 9
Area of green polygon = 23
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Find the surface area of the sphere. Use 3.14 for pi.
A. 1519.8 yd2
B. 276.3 yd2
C. 6079.0 yd2
D. 552.6 yd2
The surface area of the sphere is 1519.8 yd².
What are 3D shapes?Three-dimensional shapes or solids are the names given to 3D shapes in geometry. Three separate dimensions, such as length, width, and height, are used to describe 3D shapes. The lack of thickness or depth in 2D shapes is the only distinction between them and 3D ones.
Given a sphere
diameter = 22 yards
radius = d/2 = 22/2
radius = 11 yards
the surface area of the sphere = 4πr²
S = 4πr²
S = 4(3.14)11²
S = 1519.76 yd²
S = 1519.8 yd²
Hence option A is correct
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suppose theta is an angle in standard position whose terminal side lies in quadrant 3 . if sin theta = -4/5 find the values of the remaining five functions
Therefore , the solution of the given problem of trigonometry comes out to be the five functions value are written above Cosθ = 3/5.
What does trigonometry actually mean?Relationships between cubic splines and trigonometry When the professions of mathematicians were united, it is thought that the field was founded during the third millennium BC. Precise mathematical methods can be used to solve a wide range of geometric issues or to determine the outcomes of calculations that use them. The study of the six fundamental trigonometric operations is known as trigonometry.
Here,
Given :
There are in 3 quadrant :
=> Sinθ = -4/5
=> Cosθ = √1 - Sin²θ
=> Cosθ = √1 - 16/25
=> Cosθ = 3/5
=>Tan θ = -4/5 / 3/5
=> Tan θ = -4/3
=>Cot θ = -3/4
and
Cosec θ = -5/4
Sec θ = 5/3
Therefore , the solution of the given problem of trigonometry comes out to be the five functions value are written above Cosθ = 3/5.
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If a tile pattern has an equation `y=-2x+10`, what does the number `-2` tell us about the tile pattern?
The value -2 is the rate of change of the linear equation.
What does the number -2 tell us about the pattern?A general linear equation is:
y = a*x + b
Where a is the rate of change and b is the y-intercept.
The rate of change tells us how the variable y changes when the variable x changes.
In this case we have:
y=-2x+10
So the "-2" is the rate of change, it tells us that each time that x increases 1 unit, the value of y decreases by 2 units.
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Solve the following proportion:
6/8=8/a
Step-by-step explanation:
Cross multiply to solve for "a":
6 * a = 8 * 8
Simplify the right side:
6 * a = 64
Divide both sides by 6 to isolate "a":
a = 64 / 6
Simplify:
a = 10.67
please solve me in this maths question ya
Step-by-step explanation:
well, you have it further up :
P(A) = 17x = 17 × 1/32 = 17/32 = 0.53125
At the local Dairy Mart, you can buy one ice cream sandwich and two ice cream cones for $8 or one ice cream sandwich and one ice cream cone for $5. This situation can be represented with the system 2x+y=8
and x+y=5
, where x
represents the cost of an ice cream cone and y
represents the cost of an ice cream sandwich.Use the system of equations to determine the cost of one ice cream sandwich and one ice cream cone.
The solution for the system of linear equations is given by ( 2,3) with cost of one ice cream cone as $2 and cost of one ice cream sandwich as $3.
What are linear equations?Linear equations help in representing the relationship between variables such as x, y, and z, and are expressed in exponents of one degree. In these linear equations, we use algebra, starting from the basics such as the addition and subtraction of algebraic expressions.
Given here: The system of linear equations are 2x+y=8
and x+y=5
Solving the system of linear equations by the method of elimination we get
2x+y=8
2x+2y=10
__________
-y=-2
Thus y=2 and x=8-2 / 2
=3
Hence, The solution for the system of linear equations is given by ( 2,3)
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A spinner with 10 equally sized slices has 2 yellow slices, 4 red slices, and 4 blue slices. The dial is spun and stops on a slice at
random. What is the probability that the dial stops on a yellow or red slice?
Write your answer as a fraction in simplest form.
Answer: 3/5
The total number of slices is 10, and the number of yellow or red slices is 2 yellow slices + 4 red slices = 6 slices.
So, the probability of the dial stopping on a yellow or red slice is 6 slices / 10 total slices = 3/5.
This is the final answer, and it is already in its simplest form.
What is the quotient of the rational expression below?
[tex]\cfrac{x^2 - 49}{x+2}\div \cfrac{x^2-14x+49}{3x+6}\implies \cfrac{x^2 - 49}{x+2}\cdot \cfrac{3x+6}{x^2-14x+49}[/tex]
[tex]\cfrac{\stackrel{\textit{difference of squares}}{x^2 - 7^2}}{x+2}\cdot \cfrac{3(x+2)}{(x-7)(x-7)}\implies \cfrac{~~\begin{matrix} (x-7) \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~(x+7)}{~~\begin{matrix} x+2 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~ }\cdot \cfrac{3~~\begin{matrix} (x+2) \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{(x-7)~~\begin{matrix} (x-7) \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~} \\\\\\ \cfrac{x+7}{1}\cdot \cfrac{3}{x-7}\implies \cfrac{3(x+7)}{x-7}[/tex]
In the figure below, there are three right trangles. Complete the following. (Please answer quickly if possible!)
The similarity statement is competed as follows
triangle LMJ is similar to triangle LMK is similar to LKJThe proportion is completed as below
KL / KJ = ML / KLLJ / MJ = KJ / LJWhat are similar triangles?This is a term used in geometry to mean that the respective sides of the triangles are proportional and the corresponding angles of the triangles are congruent
Hence assuming the corresponding angles of the triangle are congruent then the side should be in proportions
Examining the figure shows that pair of equivalent sides are
KL / KJ and ML / KL
LJ / MJ and KJ / LJ
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If you buy a phone for $500 and its value decreases by 50% each year, what is it worth
at the end of 2 years?
O $10
$0
O $125
$250
What is the explicit rule for the nth term of the geometric sequence?
3, 18, 108, 648, 3,888, …
an = 3(6n)
an = 3(6n + 1)
an = 6(3n – 1)
an = 3(6n – 1)
The explicit rule for the nth term of the geometric sequence: 3, 18, 108, 648, 3,888, … is aₙ = 3( 6ⁿ⁻¹ )
What is the explicit rule for the nth term of the geometric sequence?The geometric sequence is expressed as aₙ = a₁ × rⁿ⁻¹
Given the set of numbers in the question;
3, 18, 108, 648, 3,888, …
The first term a₁ = 3
Next, we determine the common ratio r.
Divide a term by the previous term gives the common ratio.
Common ratio r = 18/3
Common ratio r = 6
Now, plug in the values of first and common ratio into the above formula to determine the nth term.
aₙ = a₁ × rⁿ⁻¹
aₙ = 3 × 6ⁿ⁻¹
aₙ = 3( 6ⁿ⁻¹ )
Therefore, the nth term of the sequence is aₙ = 3( 6ⁿ⁻¹ ).
Option D) aₙ = 3( 6ⁿ⁻¹ ) is the correct answer.
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True or False?
A triangular prism contains two parallel hexagonal faces.
False
True
SUBANE
0:03/0:03
The statement that A triangular prism contains two parallel hexagonal faces is False
How to determine the true statementFrom the question, we have the following parameters that can be used in our computation:
A triangular prism contains two parallel hexagonal faces.
As a general rule, the parallel faces in a triangular prism are triangles
This is so because a triangular prism is a 3-dimensional object with a triangular base and three rectangular sides.
The two parallel faces of a triangular prism are congruent triangles, not hexagons.
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7. Which of the following graphs would represent the solution set for y ≤ 5?
River says that KM is the
bisector of
error in River's reasoning.
The error in River's analysis is that it is known if LM and MJ are perpendicular to KL and KJ.
What is error analysis?
Error analysis is a technique used to track out errors in learner language, ascertain whether they are systematic, and (if possible) provide an explanation for why they occurred.
It is given that -
Line segment KM is the bisector of ∠LKJ.
Also, line segment LM = MJ.
According to the angle bisector theorem if a line is a bisector of an angle then the corresponding sides of the angle should be perpendicular to the third side which is getting bisected.
Although it is given that LM = MJ, but it is not known that if LM and MJ are perpendicular to the sides of ∠LKJ.
Therefore, River cannot conclude that KM is the bisector of ∠LKJ.
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The life (in hours) of a randomly chosen led light produced by a manufacturer is normally distributed with mean 1100 and standard deviation 70. Find the number of sample if the probability that the mean life is less than 1120 hours is 0.92
The sample size if the probability that the mean life is less than 1120 hours is 0.92 is given as follows:
n = 24.
How to obtain probabilities using the normal distribution?The z-score of a measure X of a variable that has mean symbolized by [tex]\mu[/tex] and standard deviation symbolized by [tex]\sigma[/tex] is obtained by the rule presented as follows:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The z-score represents how many standard deviations the measure X is above or below the mean of the distribution, depending if the obtained z-score is positive or negative.Using the z-score table, the p-value associated with the calculated z-score is found, and it represents the percentile of the measure X in the distribution.By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].The parameters for this problem are given as follows:
[tex]\mu = 1100, \sigma = 70, s = \frac{70}{\sqrt{n}}[/tex]
The p-value of Z when X = 1120 is of 0.92, hence Z = 1.405, and the sample size is obtained as follows:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]1.405 = \frac{1120 - 1100}{\frac{70}{\sqrt{n}}}[/tex]
[tex]20\sqrt{n} = 70 \times 1.405[/tex]
[tex]n = \left(\frac{70 \times 1.405}{20}\right)^2[/tex]
n = 24.
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classafy the numbers some numbers are more than 1 box numbers are 54,72,84,90,96 sections are divisible by 5 and 9 divisible by 6 and 9 divisable by 2 and 6
1/x+5 + 3/x+4 = -1/x^2+9x+20
Please solve this for me I keep getting -5 as the answer but the answer is no solution.
someone explain.
Thank you
Answer: no solution
Step-by-step explanation:
Find two integers whose sum is -17 and product is 66
Answer:
Then the two numbers are -11 and -6.
Step-by-step explanation:
-11+-6= -17
They are -11 and -6.
-11 + -6 = -17
-11 x -6 = 66.
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The triangles are similar what is the value of x
Answer: 16
Step-by-step explanation:
To get from 3 to 12, you multiply by 4
To get from 5 to 20, you multiply by 4
So you just multiply 4 by 4 to get x
Answer:
x = 16
Step-by-step explanation:
since the triangles are similar then the ratios of corresponding sides are in proportion, that is
[tex]\frac{x}{4}[/tex] = [tex]\frac{20}{5}[/tex] = 4 ( multiply both sides by 4 to clear the fraction )
x = 16
Which function represents the following graph?
8
6
-8-6-4-2
N
-2-
-4
-6
do
y=√x-3+3
y=√x+3+3
y-√√x-3 +3
2
4
6 8
00
X
The function that is represented by the graph is y = ∛(x + 3) + 3.
What is a function?
In mathematics, a function is a unique arrangement of the inputs (also referred to as the domain) and their outputs (sometimes referred to as the codomain), where each input has exactly one output and the output can be linked to its input.
The general form of a cube root function is -
y = a∛(x - h) + k and the parent graph is y = ∛x.
So the parent function is found.
The coordinate point for the parent function is -
(-1,-1) , (0,0) and (1,1).
In the graph it can be seen that the coordinate points are -
(-4,2), (-3,3) and (-2,4)
So the graph is first moved 3 units up and then moved three units left.
So, the coordinated become - (x + (-3) , y + 3)
So, the function that represents the graph is -
y = ∛(x + 3) + 3
Therefore, the function is y = ∛(x + 3) + 3.
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vertex (-4,4) points (-5,0) (-3,0)
which of the shapes below is an enlargement of shape x by a scale factor of 2
Answer:
E
Step-by-step explanation:
just looking for the ration if scale factor is 2
multiply it and fimd the ans
Write a story problem that can be represented by 8/3÷4 and explain why the division makes sense
A baker had 24 cupcakes and wanted to divide them equally among 8 friends. How many cupcakes would each friend receive?
The problem can be represented by 8/3 ÷ 4, where 8 represents the number of friends, 3 represents the number of cupcakes each friend should receive, and 4 represents the number of groups the cupcakes should be divided into.
The division makes sense because first, we need to find out how many cupcakes each friend should receive, which is 24 ÷ 8 = 3. Then, we divide the number of cupcakes each friend should receive by the number of groups to find out how many cupcakes each group should receive, which is 3 ÷ 4 = 0.75 cupcakes per group.
Solve the compound inequality 2u-5>7 or -3u≤-6
Answer:
u ≥ 2
Step-by-step explanation:
2u-5>7 :
Add 5 to both sides:
2u = 7 + 5
2u > 12
Divide by 2:
u > 6
-3u ≤ -6
Multiply both sides by -1, inequality reverses
-3u(-1) ≥ -6(-1)
3u ≥ 6
Divide by 3:
u ≥ 2
Since u > 6 is a subset of u ≥ 2, the interval for both inequalities is
u ≥ 2
11 + 5x < 26 word problem
Answer: x<3
Step-by-step explanation:
Bring the 11 to the other side of the equation, and subtract.
5x<15.
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{11 + 5x < 26}[/tex]
[tex]\mathsf{5x + 11 < 26}[/tex]
[tex]\large\textbf{Subtract 11 to both sides:}[/tex]
[tex]\mathsf{5x + 11 - 11 < 26 - 11}[/tex]
[tex]\large\textbf{Simplify it}[/tex]
[tex]\mathsf{5x < 26 - 11}[/tex]
[tex]\mathsf{5x < 15}[/tex]
[tex]\large\textbf{Divide 5 to both sides}[/tex]
[tex]\mathsf{\dfrac{5x}{5} < \dfrac{15}{5}}[/tex]
[tex]\large\textbf{Simplify it}[/tex]
[tex]\mathsf{x < \dfrac{15}{5}}[/tex]
[tex]\mathsf{x < 3}[/tex]
[tex]\large\textbf{You have an \boxed{\rm{\bf o p e n e d}} circle shaded to the left}[/tex]
[tex]\huge\boxed{\mathsf{x < 3}}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
ANSWER ASAP PLS!
The area of the parallelogram below is ____ square meters
Answer:
Below
Step-by-step explanation:
Area is base ( which is 6 m) times the height ( which is 8m)
6 x 8 = 48 m^2
There are 84 students in the Beachwood Middle School chorus. The number of girls in the chorus is 15 more than twice the number of boys.
Answer:
Expression for number of girls:
2b + 15
Equation for number of boys and girls:
b + (2b + 15) = 84
Number of boys
23
Number of girls
61
Step-by-step explanation:
b = number of boys
g = number of girls
b + g = 84
g = 2b+15
b + (2b + 15) = 84
3b + 15 = 84
3b = 69
b = 23
b + g = 84
23 + g = 84
g = 61
A) What is the value of x?
B) What is the value of y?
C) What is the best classification for the triangle?
Answer: x = 14; y = 74; Isosceles and Acute
Step-by-step explanation: 3(x+7) = 3x + 21
Isosceles triangles have congruent base angles making 63 = 3x +21
Solve for x.
All angles of a triangle add up to 180 making y = 180 - 63 - 63.
Isosceles because two sides are congruent. And acute because all angles are under 90.