The area of the triangle is 11.55 square meters.
The correct option is B.
What is a Triangle?The polygon which has three sides and three vertices is called as triangle.
The sum of all the angles of the triangle is 180°.
A triangle is given.
The height of the triangle = 5.5 meters.
The base of the triangle = 4.2 meters.
The area of the triangle = 1/2 x base x height
The area of the triangle = 1/2 x 4.2 x 5.5
The area of the triangle = 11.55 square meters.
Therefore, area is 11.55 square meters.
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if 5 sina =3 then find tana/cosa=5/13
Answer:
15/16
Step-by-step explanation:
1. Of the 300 television sets sold at an electronics store
last month, 90 were flat-screen TVs. What is the ratio of
flat-screen TVs to other TVs sold last month?
1.) 10:7
2.) 7:10
3.) 3:7
4.) 7:3
Answer:
3.) 3:7
Step-by-step explanation:
We know
Of the 300 television sets sold at an electronics store last month, 90 were flat-screen TVs.
300 - 90 = 210
So, we know the store sold 90 flat-screen TVs and 210 other TVs
What was the ratio of flat-screen TVs to other TVs sold last month?
The ratio is
90:210
3:7
So, the answer is 3.) 3:7
Answer:
3.) 3:7
Step-by-step explanation:
The unsimplified ratio would be 90:210 since flat-screen TVs are excluded, but if you simplify this you get 3:7.
90:210
9:21
3:7
One side of a rectangle is 16 inches and the other side is x inches. What values of x will make the
perimeter more than 50 inches?
Any real value of x which is greater than 9 inches will make the perimeter of rectangle more than 50 inches
Let us assume that the length of the rectangle is represented by l and the width is represented by w.
Assuing l = 16 inches and width = x inches
Let P represents the perimeter of the rectangle.
We know that the formula for the perimeter of the rectangle is:
P = 2(l + w)
The perimeter should be more than 50.
So, we get an inequality,
P > 50
2(l + w) > 50
l + w > 25
16 + x > 25
16 + x - 16 > 25 - 16
x > 9
Thi means, that for any x > 9 will make the perimeter greater than 50 in.
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Lisa planted 4/7 of the garden, and Linda planted 1/6. How much of the garden did they plant altogether?
So Lisa and Linda planted 9/6 of the garden altogether. In simplest form, this fraction can be reduced to 3/2, which means that they planted 3/2 of the total garden area.
To find out the total area of the garden that Lisa and Linda planted, we need to add the fraction of the garden that Lisa planted to the fraction of the garden that Linda planted.
Lisa planted 4/7 of the garden, so we can write this as 4/7 of the total area.
Linda planted 1/6 of the garden, so we can write this as 1/6 of the total area.
To add these two fractions, we need to find a common denominator, which is the smallest number that both 7 and 6 can divide into evenly. The smallest common denominator is 6, so we can convert both fractions to have a denominator of 6:
Lisa planted 4/7 of the garden, which can be converted to 8/14 (by multiplying both the numerator and denominator by 2).
Linda planted 1/6 of the garden, which stays the same, since 6 is already the denominator.
Now that both fractions have a denominator of 6, we can add the numerators together to find the total amount of the garden that they planted:
8/14 + 1/6 = (8 + 1)/6 = 9/6
So Lisa and Linda planted 9/6 of the garden altogether.
In simplest form, this fraction can be reduced to 3/2, which means that they planted 3/2 of the total garden area.
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the polygon exterior angle-sum theorem states that the exterior angles of any polygon add up to 360 degrees. *write a formula that can help you find the measure of each individual exterior angle in any polygon. use n for the number of sides.
The formula to calculate the measure of each individual exterior angle in any polygon is: Exterior angle measure = 360°/n.
To find the measure of each individual exterior angle in any polygon, first, you must understand the Polygon Exterior Angle-Sum Theorem, which states that the exterior angles of any polygon add up to 360 degrees.
With this information, the formula for the measure of an individual exterior angle is simple: Exterior angle measure = 360°/n, where n is the number of sides in the polygon.
By dividing the total sum of the exterior angles (360°) by the number of sides (n) in the polygon, you can determine the measure of each individual exterior angle.
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Solve 2*x2+3xy if x=6 and y=5
The solution to the given algebraic expression is 162.
Solving algebraic expressions.The process of solving algebraic expressions can sometimes be the process whereby numbers are used as a substitute or to replace a variable(s) in order to get a desired solution.
In the given question, we have 2x² + 3xy, where x = 6 and y = 5. It means that we are going to replace the value of x with 6 where ever we see x in the expression and y with 5.
Thus, 2x² + 3xy becomes:
= 2(6)² + 3(6)(5)
= 2(36) + 3(30)
= 72 + 90
= 162
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Geoff works at a warehouse, earning $17. 50 per hour plus a $200 one-time hiring bonus. In Geoff’s first week, his pay including the bonus was $637. 50.
Write and solve an equation to find how many hours h Geoff worked his first week
Finally, to find the number of hours Geoff worked, we can divide both sides of the equation by 17.50:
h = 25
So Geoff worked 25 hours in his first week.
Let's call the number of hours Geoff worked in his first week "h". We can write an equation to find the value of h by using the information given.
Geoff's pay per hour is $17.50, so his pay for h hours would be 17.50h.
Including the $200 one-time hiring bonus, Geoff's total pay for the first week was $637.50, so we can write the equation:
17.50h + 200 = 637.50
To find the number of hours Geoff worked, we need to isolate the h term. To do this, we can subtract 200 from both sides:
17.50h = 437.50
Finally, to find the number of hours Geoff worked, we can divide both sides of the equation by 17.50:
h = 25
So Geoff worked 25 hours in his first week.
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−n+(−3)+3n+5 ????????
Answer:
2n+2
Step-by-step explanation:
Use the figure below to answer the following questions be sure to use appropriate symbol where necessary
Based on the given pictures:
∠1 is obtuse angle∠2 is acute angle∠ABC is straight angle∠2 name is ∠EBDx = 15x = 13Angle ∠1 has a more than 90° angle, means that it is classified as obtuse angle.
Angle ∠2 has a less than 90° angle, means that it is classified as an acute angle.
∠ABC is a straight angle because it creates a straight line with 180°.
Angle ∠2 can be named as ∠EBD because it was created by lines EB and ED.
∠WXY = 88°
∠WXZ = 4x - 3
∠ZXY = 2x + 1
∠WXY = ∠WXZ + ∠ZXY
88 = (4x - 3) + (2x + 1)
88 = 6x - 2
6x = 90
x = 15
∠HIJ = 108°
IK bisects ∠HIJ
∠HIK = 4x + 2
∠HIJ = 2∠HIK
108 = 2(4x + 2)
108 = 8x + 4
8x = 104
x = 13
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In one day, The Tool Shed rented out 25 self-propelled and riding mowers for a total fee of $900. The daily rental cost was $20 for each self-propelled mower and $40 for each riding mower. Find the number of self-propelled mowers (x) and the number of riding mowers (y) rented for that day.
5 self-propelled mowers and 20 riding mowers
18 self-propelled mowers and 7 riding mowers
8 self-propelled mowers and 17 riding mowers
12 self-propelled mowers and 13 riding mowers
The number of self-propelled mowers and riding mowers who paid total fee of $900 with $20 and $40 each are equal to 5 and 20 respectively.
Let 'x' be the number of self-propelled mowers and 'y' be the number of riding mowers.
Total number of self-propelled and riding mowers = 25
⇒ x + y = 25
⇒ x = 25 - y __(1)
Total fees paid = $900
Rental cost for each self-propelled mower = $20
Rental cost for each riding mower = $40
20x + 40y = 900
⇒ x + 2y = 45___(2)
Substitute the value x in from (1) in (2) we get,
⇒ 25 - y + 2y = 45
⇒ y = 20
⇒ x = 5
Therefore, the number of self-propelled mowers and riding mowers as per given total fee are 5 and 20 respectively.
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1 mile divided by 2 laps = mi/lap
the value of 1 mile divided by 2 laps is 0.5 mi/lap.
What are mathematical operations?The term "operation" in mathematics refers to the process of computing a value utilizing operands and a math operator. For the specified operands or integers, the math operator's symbol has predetermined rules that must be followed. In mathematics, there are five basic operations: addition, subtraction, multiplication, division, and modular forms.
Given, 1 mile divided by 2 lap
Simplifying the equation in numerical form
=> 1 mile divided by 2 lap
=> 1/ 2 mil/ laps
=> 0.5 mil/lap
Therefore, the value of 1 mile divided by 2 laps is 0.5 mi/lap.
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Which of the following are roots of the polynomial function below?
Check all that apply.
F(x)=x²-3x²+2
A. 3-√17
4
B. 2+√/12
C. 1
D. 3+√17
4
□ E. 2-12
SUBMIT
Answer:
[tex]\textsf{B.} \quad \dfrac{2 +\sqrt{12}}{2}[/tex]
[tex]\textsf{C.} \quad 1[/tex]
[tex]\textsf{E.} \quad \dfrac{2-\sqrt{12}}{2}[/tex]
Step-by-step explanation:
Factor TheoremIf f(x) is a polynomial, and f(a) = 0, then (x – a) is a factor of f(x).
If the coefficients in a polynomial add up to 0, then (x - 1) is a factor.
Given polynomial function:
[tex]f(x)=x^3-3x^2+2[/tex]
Sum the coefficients:
[tex]\implies 1-3+2=0[/tex]
As the sum of the coefficients equals one, (x - 1) is a factor the polynomial.
Find the other factor by dividing the polynomial by (x - 1):
[tex]\large \begin{array}{r}x^2-2x-2\phantom{)}\\x-1{\overline{\smash{\big)}\,x^3-3x^2+2\phantom{)}}}\\{-~\phantom{(}\underline{(x^3-x^2)\phantom{-)..)}}\\-2x^2+2\phantom{)}\\-~\phantom{()}\underline{(-2x^2+2x)\phantom{}}\\-2x+2\phantom{)}\\\phantom{)}-~\phantom{()}(-2x+2)\\\end{array}[/tex]
Therefore, the factored form of the polynomial is:
[tex]f(x)=(x-1)(x^2-2x-2)[/tex]
To find the roots, set the function to zero and solve for x.
Set the first factor to zero and solve for x:
[tex]\implies (x-1)=0 \implies x=1[/tex]
Set the second factor to zero and solve for x using the quadratic formula:
[tex]\implies x=\dfrac{-b \pm \sqrt{b^2-4ac}}{2a}[/tex]
[tex]\implies x=\dfrac{-(-2) \pm \sqrt{(-2)^2-4(1)(-2)}}{2(1)}[/tex]
[tex]\implies x=\dfrac{2 \pm \sqrt{12}}{2}[/tex]
How do you tell the possible rational roots of a polynomial function? How do you test one of the possible rational roots to see if it is indeed a zero?
Step-by-step explanation:
To find the possible rational roots of a polynomial function, you can use the Rational Root Theorem. According to this theorem, if a rational number "p/q" is a root of a polynomial function, where p and q are integers, and q ≠ 0, then p must div ide the constant term of the polynomial and q must divide the leading coefficient of the polynomial.
To test if one of the possible rational roots is indeed a root (zero) of the polynomial, you can use the Synthetic Division method. In this method, you divide the polynomial by the linear factor (x - p/q) corresponding to the test root, and check if the remainder is zero. If the remainder is zero, then the test root is a zero (root) of the polynomial.
Komi and Jordan are each working during the summer to earn money in addition to their wecky
allowance and they are saving all their money Kimi earns $9 an hour at her job and her alowance
15 58 per week Jordan earns 57 50 an hour and his allowance is $16 per week. If the number of hours worked in a week is one, what are Kimi’s weekly total savings?
Kimi's weekly total savings would be $17.
Kimi's total earnings from her job in a week would be $9 × 1 = $9.
Her total allowance and earnings from her job would be $9 + $8 = $17.
Kimi earns $9 an hour at her job, and her allowance is $8 per week, so her total weekly income is $9 + $8 = $17.
Jordan earns $7 an hour, and his allowance is $16 per week, so his total weekly income is $7 + $16 = $23.
So, Kimi's weekly total savings would be $17.
Hence, the answer to the given problem is $17.
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--The given question is incomplete; the complete question is
"Komi and Jordan are each working during the summer to earn money in addition to their weekly allowance, and they are saving all their money. Kimi earns $9 an hour at her job, and her allowance is $8 per week; Jordan earns $7 an hour, and his allowance is $16 per week. If the number of hours worked in a week is one, what are Kimi’s weekly total savings?"--
10,11,13,18,19,21,22,25,27,30,32
Find the median of the data set
Answer:
21
Step-by-step explanation:
The median is the value separating the higher half of the data from the lower half.
10,11,13,18,19, 21 ,22,25,27,30,32
We see the middle number in this set is 21, so the median is 21
Polygon KLMN is drawn with vertices at K(0, 0), L(5, 2), M(5, −5), N(0, −3). Determine the image vertices of K′L′M′N′ if the preimage is rotated 90° clockwise.
K′(0, 0), L′(−2, 5), M′(5, 5), N′(3, 0)
K′(0, 0), L′(2, −5), M′(−5, −5), N′(−3, 0)
K′(0, 0), L′(−2, −5), M′(5, −5), N′(3, 0)
K′(0, 0), L′(−5, −2), M′(−5, 5), N′(0, 3)
The image vertices of K′L′M′N′ if the preimage is rotated 90° clockwise are K′(0, 0), L′(2, −5), M′(−5, −5), N′(−3, 0). Therefore, option B is the correct answer.
What is rotation rule of 90°?Here are the rotation rules: 90° clockwise rotation: (x, y) becomes (y, -x) 90° counterclockwise rotation: (x, y) becomes (-y, x) 180° clockwise and counterclockwise rotation: (x, y) becomes (-x,-y).
Given that, polygon KLMN is drawn with vertices at K(0, 0), L(5, 2), M(5, −5), N(0, −3).
After rotated 90° clockwise, we get
K(0, 0)→K'(0, 0)
L(5, 2)→L'(2, -5)
M(5, −5)→M'(-5, -5)
N(0, −3)→N'(-3, 0)
Therefore, option B is the correct answer.
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17 521 km to 1 significant figure
greatly appreciated with working out
help asap!!!!
What is the lateral surface area of the rectangular prism below?
The lateral surface area of the rectangular prism is 72 square inches.
What is lateral surface area?All of the sides of the object are the lateral surface of an object, except its base and top (when they exist). The lateral surface area is the lateral surface zone. This is to be distinguished from the overall surface area, which, along with the base and top areas, is the lateral surface area.
Given that, length =7 inches, breadth =5 inches and height =3 inches.
We know that, the lateral surface area of the rectangular prism is 2(l+b)h
Now, the lateral surface area = 2(7+5)×3
= 2×12×3
= 72 square inches
Therefore, the lateral surface area of the rectangular prism is 72 square inches.
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The difference of a number and 7 times 11
Therefore , the solution of the given problem of expression comes out to be x - 77.
What exactly is a expression?Arithmetic, algebra, and subdivision are required in math. When united, they produce the following: A mathematical function, some data, and an equation A statement of fact contains values, parameters, and mathematical operations like additions, addition and subtraction, matrix multiplication, and divisions. It is possible to analyse and assess various phrases and terms.
Here,
If we let "a number" be represented by the variable x, then the expression "the difference of a number and 7 times 11" can be written as:
x - 7 * 11
Simplifying this expression gives:
x - 77
Therefore , the solution of the given problem of expression comes out to be x - 77.
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The function V(x) = 4/3πx^3 represents the volume (in cubic inches) of the sphere. The function W(x) = V(27x) represents the volume (in cubic inches) of the sphere when x is measured in feet. Write a rule for W. Find W(6) in terms of π.
W(x) = ?
W(6) = ? cubic inches.
The value of the function W(x) for x=6 is 17,799,730.56 cubic inches.
What is the function?Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.
Given that, the function V(x)=4/3 πx³ represents the volume (in cubic inches) of the sphere.
The function W(x) = V(27x) represents the volume (in cubic inches) of the sphere when x is measured in feet.
W(x) = 4/3 π(27x)³
W(x) = 4/3 π(27x)³
= 4/3 π×19683×x³
= 4π×6561×x³
W(x)= 26244πx³
W(6)= 26244×3.14×(6)³
= 17,799,730.56 cubic inches
Therefore, the value of the function W(x) for x=6 is 17,799,730.56 cubic inches.
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Mo and Beth split £48 in the ratio 3.5 how mutch does Beth get
With Mo and Beth splitting £48 in the ratio 3.5 , Beth would get £10.67 with the total ratio of 4.5.
When two people split a sum of money in a certain ratio, it means that they divide the total amount into parts that are proportional to the ratio. In this case, Mo and Beth are splitting £48 in the ratio 3.5. This means that Mo gets 3.5 parts of the total amount, while Beth gets 1 part of the total amount.
To calculate the total ratio, you add up the individual parts of the ratio. In this case, the total ratio is 3.5 + 1 = 4.5. This means that the £48 has to be divided into 4.5 equal parts.
Next, to find the amount that Beth gets, you need to find what portion of the 4.5 parts of the total amount corresponds to her 1 part of the ratio. You do this by dividing £48 by the total ratio, which gives you £48 / 4.5 = £10.67.
Finally, you multiply this amount by 1, which represents Beth's share of the ratio. So, £10.67 * 1 = £10.67. Therefore, Beth would get £10.67.
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For a particular cleaning product, it is recommended that 4 ounces of product are diluted using 20 ounces of water. Which of the following fractions represents the recommended ratio of cleaning product to water?
A. 1/5
B. 5/1
C. 1/6
D. 6/1
E. 5/6
The ratio of cleaning product to water for the condition is 1/5
What are ratios?Comparing two amounts of the same units and determining the ratio tells us how much of one quantity is in the other. Two categories can be used to categorize ratios. Part to whole ratio is one, and part to part ratio is the other.
Given it is recommended that 4 ounces of the product are diluted using 20 ounces of water.
to find the ratio of cleaning products to water
ratio = cleaning product/water
cleaning product = 4 ounce
water = 20 ounces
ratio = 4/20
4/20 is equivalent to 1/5
ratio = 1/5
Hence option A is correct.
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tay practices piano for x hours. Omar practices for 2/5 less than that
Answer: Let x be the number of hours Tay practices the piano. Then, Omar practices for 2/5 less than that, or x - 2/5x = 3/5x hours.
Step-by-step explanation:
If T.S.A of a cylinder is 231m^2 and C.S.A is 154m^2, find it's volume.
The volume of the cylinder is 538.9 m³.
What is a cylindrical shape?A cylinder is a three-dimensional solid object with two bases that are identically circular and are connected by a curving surface that is located at a specific height from the center.
Examples of cylinders are toilet paper rolls and cold beverage cans.
The volume of a cylinder is πr²h.
Curved surface area = 2πrh.
Total surface area = 2πr(h + r).
The T.S.A. is equal to 231m² and C.S.A. is equal to 154m².
We know that,
T.S.A - C.S.A = 2πr².
231 - 154 = 2πr².
77 = 2πr².
πr² = 77/2.
πr² = 38.5.
r² = 12.26.
r = 3.5.
2πrh = C.S.A
2πrh = 154.
h = 154/(πr).
h = 14.01
Therefore, The volume is equal to,
π×(3.5)²×14.01.
= 538.9 m³.
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PLEASE HELP SUPER EASY
Answer: isosceles, because each side is accurate
Answer:
Scalene, right.
Step-by-step explanation:
Its scalene because all the sides are not equal.
It is a right angled triangle.
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Can anyone help............................................
Answer:
Last option:
x ≤ 217
Step-by-step explanation:
Mean time = Total Time/Number of observations
Mean time = (192 + 206 + 194 + 191 + x)/5 = (783 + x)/5
We want this mean time to be no greater than 200 seconds.
In other words we want mean time ≤ 200 s
We therefore get the inequality:
(783 + x)/5 ≤ 200
Multiplying both sides by 5
=> (783 + x) · 5 ≤ 200 · 5
=> 783 + x ≤ 1000
=> x ≤ 1000 - 783
=> x ≤ 217
Find the volume of the composed figure
Enter the correct number in the box
The required volume of the composite figure is given as 18,300 cm³.
What is volume?Volume is defined as the mass of the object per unit density while for geometry it is calculated as profile area multiplied by the length at which that profile is extruded.
Here,
The volume of the composed figure is given as,
Split the figure into two,
So,
Volume = Volume of 1 + Volume of 2
Volume = 15 × 15 × 30 + 35 × 22 × 15
Volume = 6750 + 11550
Volume = 18,300 cm³
Thus, the required volume of the composite figure is given as 18,300 cm³.
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The coordinate grid shows triangle STU.
Triangle STU is rotated 270* about the origin to create triangle S'T'U'. Which rule describes this transformation?
(x, y) → (x, -y)
(x, y) → (y, -x)
(x, y) (x + 3, y + 5)
(x, y) → (-x, y)
The transformation rule (x, y) → (-y, x) describes a 270* rotation about the origin for a triangle on the coordinate grid.
A transformation in mathematics is a process of mapping or changing one figure into another while preserving its shape, size and orientation. The coordinate grid is a tool used to plot points and study transformations in a two-dimensional plane.
The transformation rule that describes this rotation is (x, y) → (-y, x). This rule means that for every point (x, y) in the triangle STU, the new point (x', y') in the triangle S'T'U' is obtained by swapping the x and y coordinates and negating the y-coordinate. In other words, the x-coordinate remains unchanged, while the y-coordinate is negated.
For example, if the point (3, 4) is in the triangle STU, the new point (x', y') in the triangle S'T'U' would be (4, -3).
This rule applies to all points in the triangle, and the result is a rotation of the original triangle by 270* in a counterclockwise direction about the origin.
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(HELP!!!) 1. 20 % of the total number of pupils in a class is 6, How many pupild are there in the class altogether? (with explanation pls)
Answer:
30
Step-by-step explanation:
this is the explanation
6÷20% = 30