PLEASEEEEEEE HELP DUE NOWWWWWWWWW
Robbin's thumbnail is 1 5/8 centimeters long her pinky nail is 4/5 centimeters long. How much longer is robins thumbnail that pinky nail
A way to measure things is the metric system. Calculations and research use it all around the world.
What is Metric Units?In the metric system, the following units are used to measure length, weight, and capacity:
Length: There are five units of measurement for length, width, and height: the millimeter (mm), decimeter (dm), centimeter (cm), meter (m), and kilometer (km).Debit card thickness and length measurements, fabric length measurements, and distances between cities are a few examples.
Weight: Using instruments, we can determine an object's weight in grams (g) and kilograms (kg).The weight of fruits or our own body weight are two examples.
It is possible to measure how much liquid an object can hold using milliliters (ml) and liters (l).Calculating the volume of water in a water tank or the amount of juice in a juice can are two examples.
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Astorepays£98foramicroscope.Thestoremarksupthepriceby50%.Whatistheamountofthemark-up
Using percentage formula, the mark up price on the microscope is £49
Percentage
Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".
Markup shows how much more a company's selling price is than the amount the item costs the company. In general, the higher the markup, the more revenue a company makes. Markup is the retail price for a product minus its cost, but the margin percentage is calculated differently.
Actual price = £98Markup percent = 50%Let's find 50% of £98
50 / 100 = x / 98
0.5 = x / 98
x = 0.5 * 98
x = 49
The mark up price is £49
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Hotdogs are sold for a dollar and hamburgers are sold for $1.50. 175 hotdogs and hamburgers were sold in $235 was collected. How many hotdogs were sold?
Answer:
55 Hot dogs were sold
Step-by-step explanation:
Let d = hot dogs
Let h = hamburgers
d + h = 175
d + 1.50h = 235
Re-write
d + h = 175 for d and then substitute this into the second equation
d = 175 - h
d + 1.5 h = 235
175 - h + 1.50h = 235 Combine like terms
175 + .5h = 235 Subtract 175 from both sides
.5 h = 60 Divide both sides by .5
h = 120
120 Hamburgers were sold.
Plug in 120 for h to solve for hot does
d + h = 175
d + 120 = 175 Subtract 120 from both sides
d = 55
Check
d + 1.5h = 235
55 + 1.5(120) = 235
55 + 180 = 235
235=235
A certain store is selling packages of 10 pencils and 4 pens for back to school. The store manager wants to make a larger package in the same ratio. If the large package has 10 pens, how many pencils are in the large package?
The number of pencils that will be in the large package, given the ratio of the pencils to pens in the package, is 25 pencils
How to find the number of pencils?In the original package, the ratio was such that there was 4 pens for every 10 pencils. This means that the number of pencils per pen was:
= 10 / 4
= 2. 5 pencils per pen
If there is a larger package with the same ratio and the number of pens in the package is 10 pens, then the number of pencils would be:
= Number of pens x Pencils per pen
= 10 x 2.5
= 25 pencils
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Find all values of n for which the equation has two complex (non-real solutions)
6r² = 8r+ (n + 4)
Answer:
When n < - 6 2/3 the given equation has two complex solutions------------------------------
Given is a quadratic equation:
6r² = 8r+ (n + 4) ⇒ 6r² - 8r - (n + 4) = 0A quadratic equation has no real solutions if its discriminant is negative.
The discriminant of ax² + bx + c is:
D = b² - 4acApply to given equation:
D = (-8)² - 4*6*( - (n + 4)) = 64 + 24(n + 4) = 64 + 24n + 96 = 24n + 160Find the value of n when D < 0:
24n + 160 < 024n < - 160n < - 160/24 n < - 20/3 n < - 6 2/3A theatre contains 414 seats and the ticket prices for a recent play were $47 for adults and $22 for children. If the total proceeds were $12,983 for a sold-out matinee, how many of each type of ticket were sold?
The system of linear equations shows that the adult tickets was 155 and children ticket was 259
System of Linear EquationIn algebra, a system of equations comprises two or more equations and seeks common solutions to the equations. "A system of linear equations is a set of equations which are satisfied by the same set of variables."
To solve this problem, we can set up two equations for this
Let;
adult ticket = xchildren ticket = yx + y = 414 ...eq(i)
47x + 22y = 12983 ...eq(ii)
Solving both equations; the values of x and y are 155 and 259 respectively
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Two cones are similar. The volume of the larger cone is 27 cm³ and the volume of the smaller cone is 8 cm³. The height of th
smaller cone is 2 cm.
What is the height of the larger cone?
Enter your answer in the box.
cm
If two cones are similar, then the height of the larger cone will be equal to 3 cm.
What is the area?An object's area is how much space it takes up in two dimensions. It is the measurement of the number of unit squares that completely encompass the surface of a compact figure. The squared unit, which is frequently expressed as inches, square feet, etc., is the accepted unit of area.
As per the data provided in the question,
For volume, the scale factor is,
k³ = 27/8
For length, the scale factor is,
k = ∛27/8
k = 3/2
Then the height of the larger will be,
h = 3/2 × 2
h = 3 cm.
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For every 10 children 4 wore glasses. There were 30 children. How many did not wear glasses?
Answer:
18
Step-by-step explanation:
If 4 out of 10 wore glasses, then 6 out of 10 did not wear classes. This would be 60% or .6
.6x30 = 18
POLIGONOS: si tengo de informacion que 360 entre n es igual a 72 como puedo saber cual es el angulo interno la suma de angulos interno y el nombre del poligono?
El polígono regular tiene las características de un pentágono, cuya medida de ángulo central es 72° y la suma de todos los ángulos centrales es igual a 360°.
¿Qué polígono tiene un ángulo central de 72 grados?
En este problema debemos determinar que polígono regular tiene un ángulo central con medida de 72°, la suma de todos los ángulos centrales de un polígono es igual a 360°. El número de lados del polígono se puede determinar mediante la siguiente operación:
n = 360° / θ
Donde θ es la medida del ángulo central, en grados.
Si sabemos que θ = 72°, entonces el número de lados del polígono:
n = 360° / 72°
n = 5
El polígono regular es un pentágono.
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The half-life of Radium-226 is 1590 years. If a sample contains 200 mg}, how many mg will remain after 1000 years?
_________mg
Give your answer accurate to at least 2 decimal places.
Answer:
137.11 mg
Step-by-step explanation:
divide 200 mg by 2 = 100 mg
divide 100 by 1590 = 0.0628930818
multiply this by 1000 = 62.8930818
subtract 62.8930818 from 200 = 137.1069182
137.1069182 rounded to 2 decimal places is 137.11 mg
therefore, the answer is 137.11 mg
Please help will mark Brainly
Your answer is -5.
Hope this helps.
1/8 of the pupils at jake's school walked to school. 3/8 came by bus. waht fraction either walked or came by bus
By adding the two given fractions we will see that 1/2 of the students either walked or came by bus
What fraction either walked or came by bus?Let's say that there are N students in total. We know that a fraction of 1/8 of these N students walk to school.
And a fraction of 3/8 of the students go by bus to the school.
Then the fraction that either walks or came by bus to school is given by the addition between the two fractions above, then we just need to solve.
f = 3/8 + 1/8
We can see that we have the same denominator in both fractions, so we can directly add the numerators:
f = (3 + 1)/8 = 4/8
Now we can simplify the fraction to get:
f = 1/2
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What number of inches is equivalent to 848
not defined because 848 has no unit
solve ((-3) x (10 + (-7))) to the power of 2 /n3 - (-9) to the power of 2)
The solution of the given expression will be 9/16.
What is an expression?Expressions in maths are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between.
Given an expression, [-3*(10+(-7))]²÷[(3-(-9)]²
[-3*(10+(-7))]²÷[(3-(-9)]² = (-9)²/12²
= 9/16
Hence, The solution of the given expression will be 9/16.
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(03.02 MC)
a
R
Which set of transformations would prove AQRS-AUTS?
Reflect AUTS over y = 2, and dilate AUT'S' by a scale factor of 2 from point S.
Reflect AUTS over y = 2, and translate AU'T'S' by the rule (x - 2, y + 0).
Translate AUTS by the rule (x + 0, y + 6), and reflect AUT'S' over y = 6.
Translate AUTS by the rule (x-2, y + 0), and reflect AU'T'S' over y = 2.
See question in screenshot below:
The cos, tan, sec, csc and cot of the angle θ in quadrant IV are 3/5, -4/3, 5/3, -5/4 and -3/4 respectively
How to find the trigonometric ratio of the angle?
Trigonometry is a branch of mathematics dealing with the relationship between the ratios of the sides of a right-angled triangle with its angles.
Given that: sin(θ) = -4/5 and θ is in quadrant 4.
Using this information, we can sketch the location of the angle θ in the quadrant (See the attached image). Therefore:
(a) cos(θ) = 3/5 (adj/hyp)
(b) tan(θ) = -4/3 (opp/adj)
(c) sec(θ) = 1/cos(θ) = 5/3
(d) csc(θ) = 1/sin(θ) = -5/4
(e) cot(θ) = 1/tan(θ) = -3/4
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express 1-tan(a) as a product
The given expression 1-tan(a) is simplified as (cos(a)-sin(a))/cos(a).
The given trigonometric expression is 1-tan(a).
What are trigonometric ratios?The sides and angles of a right-angled triangle are dealt with in Trigonometry. The ratios of acute angles are called trigonometric ratios of angles. The six trigonometric ratios are sine (sin), cosine (cos), tangent (tan), cotangent (cot), cosecant (cosec), and secant (sec).
We know that, tanθ=sinθ/cosθ
Now, 1-tan(a) =1-sin(a)/cos(a)
= (cos(a)-sin(a))/cos(a)
Therefore, the given expression 1-tan(a) is simplified as (cos(a)-sin(a))/cos(a).
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(iv) A Nokia phone and Glo-Sim where sold for # 3,040 making a profit of 25% on the phone &
10% on the Sim card. By selling them for #3,070, the profit realised would have been 10% on
the phone and 25% on the sim. Find the cost price of each.
Answer:
phone's price = 1200
sim's price = 1400
Step-by-step explanation:
3.13.R Question:
Which of the following are exponential functions? (select all that apply)
The functions representing exponential growth or decay are f(x) = 3²ˣ⁺¹, f(x) = 0.8ˣ⁻⁰, f(x) = π⁴ˣ, f(x) = (4/9)ˣ, f(x) = -(3)ˣ, f(x) = (-3)ˣ
Exponential FunctionAn exponential function is defined by the formula f(x) = aˣ, where the input variable x occurs as an exponent. The exponential curve depends on the exponential function and it depends on the value of the x.
The exponential function is an important mathematical function which is of the form f(x) = aˣ
Where a>0 and a is not equal to 1, and x is any real number.
If the variable is negative, the function is undefined for -1 < x < 1.
Here,
“x” is a variable“a” is a constant, which is the base of the function.An exponential curve grows, or decay depends on the exponential function. Any quantity that grows or decays by a fixed per cent at regular intervals should possess either exponential growth or exponential decay.
In the question, the functions that are exponential are
f(x) = 3²ˣ⁺¹, f(x) = 0.8ˣ⁻⁰, f(x) = π⁴ˣ, f(x) = (4/9)ˣ, f(x) = -(3)ˣ, f(x) = (-3)ˣ
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Pls answer this is in khan academ pls answer fast rapidly
Answer:
26.009
Step-by-step explanation:
Let's break it down
(2*10) + (6*1) + (9*1/1000)
20+6+0.009
26.009
Hundreds- 0
Tens- 2
Ones- 6
Tenths- 0
Hundredths- 0
Thousandths- 9
Answer:
26.009
Step-by-step explanation:
since 2 is being multiplied by ten there are 2 tens
And since 6 is being multiplied by 1 there are 6 ones
and since 9 is being multiplied by 1/1000 there are 9 thousandths
And the rest of the place values are zero and should be written like
26.009
Hopes this helps please mark brainliest
answer the 4 questions attached below ⬇️
The area and perimeter of the composite figures are as follows;
Figure 1;
Perimeter = 70 km
Area = 200 km²
Figure 2
Perimeter = 28 cm
Area = 24 cm²
Figure 3
Perimeter = 40 m
Area = 88 m²
Figure 4
Perimeter = 64 m
Area = 96 m²
What is the area of a composite figure?The area of a composite figure is the sum of the areas of the parts or simple figures that make up the figure.
Figure 1
The perimeter = 10 + 10 + 5 + 20 + 5 + 10 + 10 = 70
The perimeter of the figure is 70 kilometersThe area = 10 × (10 + 5) + 10 × 5 = 200
The area of the figure is 200 km²Figure 2
The perimeter of the figure is; 6 cm + 5 cm + 2 cm + 3 cm + 2 cm + 3 cm + 2 cm + 5 cm = 28 cmArea of the figure is 5 cm × 2 cm + 2 cm × 2 cm + 5 cm × 2 cm = 24 cm²Figure 3
The perimeter of the figure is 12 m + 6 m + 4 m + 2 m + 8 m + 8 m = 40 mThe area of the figure is 6 m × 12 m + 8 m × 2 m = 88 m²Figure 4
Perimeter of the figure is 12 m + 12 m + 2 m + 8 m + 4 m + 8 m + 4 m + 8 m + 2 m + 4 m = 64 mArea of the figure is 12 m × 2 m + 4 m × 4 m + 4 m × 12 m + 4 m × 2 m = 96 m²Learn more about finding the area and perimeter of composite figures here:
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A steel beam can be cut to different lengths for a project. Assuming the weight of a steel beam is proportional to
its length, what information would you need to know to write an equation that represents this relationship?
Answer:
You can write a statement of proportionality without any additional information:
... weight = k × length . . . . . . . . for some constant k
If you need to know the specific weight of a specific length, then you need to know the constant of proportionality (the value of k).
Step-by-step explanation:
The first angle in a triangle is three times that of a second angle. The second angle is two times that of the third angle. Find the ratio of the angles in the triangle.
The first angle in a triangle is three times that of a second angle. The second angle is two times that of the third angle. The ratio of the angles in the triangle is 1:2:3.
Define angle.When two rays are joined at one point, they produce the geometric shape known as an angle. The vertex is the shared point between the two rays, which are known as the arms or sides of the angle. When two rays meet at a point, they make an angle. An "angle" is the term used to describe the "opening" between these two rays, and it is symbolised by the symbol. Angles are typically expressed as 60°, 90°, etc. and are measured in degrees.
Given,
A first angle of let x
2x = 2nd angle
3x = 3rd angle
Angle sum = 180
x + 2x + 3x = 180
6x = 180
Dividing,
x = 30°
2x = 2(30)
2nd angle = 60
3x = 3(30)
3rd angle = 90
30°, 60°, and 90° are the three angles.
Ratio 1:2:3
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Find the volume of the solid generated by revolving the region bounded by y = x
and y = x²-3x about the x axis
The volume of the solid generated by revolving the region bounded by y = x and y = x²-3x about the x-axis will be x³/3-3x²/2+c.
What is the equation?An equation is a statement that two expressions, which include variables and/or numbers, are equal. In essence, equations are questions, and efforts to systematically find solutions to these questions have been the driving forces behind the creation of mathematics.
It is given that,
y = x²-3x
The volume of the solid generated by revolving the region bounded by y = x and y = x²-3x about the x-axis is obtained as,
[tex]=\int\:x^2-3x \ dx \\\\ = \int \:x^2dx-\int \:3xdx \\\\ =\frac{x^3}{3}-\frac{3x^2}{2} \\\\ =\frac{x^3}{3}-\frac{3x^2}{2}+C[/tex]
Thus, the volume of the solid generated by revolving the region bounded by y = x and y = x²-3x about the x-axis will be x³/3-3x²/2+c.
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In a certain Algebra 2 class of 27 students, 11 of them play basketball and 13 of them play baseball. There are 5 students who play neither sport. What is the probability that a student chosen randomly from the class plays basketball or baseball?
Answer:
22/27
Step-by-step explanation:
5 play nothing.
27 - 5 = 22
22 play basketball only or baseball only or both.
p(plays baseball or basketball) = 22/27
Evaluate the exponential function f(x)=(1/8)^-x
The exponential function f(x)=(1/8)^-x can be evaluated to give us:
f(2)= 64f(-3)= 1/512f(-3)= [tex]\frac{1}{\sqrt{\frac{1}{8} } }[/tex]What is exponential function?An exponential function serves as Mathematical function in the form f (x) = ax hving “x” as variable,the conceptis the concept of exponential function.
The given function is f(x)=(1/8)^-x
Then f(2)=(1/8)^-2 = 1/(1/8)^2 =1/(1/64) =64
f(-3)=(1/8)^-(-3) = 1/512
f(-3)=(1/8)^-(1/2) =[tex]\frac{1}{\sqrt{\frac{1}{8} } }[/tex]
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Match each equation with the inverse operation you should use (on both sides of the equation) to solve for x.
x + 2 = 10 _____
x - 2 = 10 ____
2x = 10 ____
x/2 = 10 ____
x + 2 = 10
x + 2 - 2 = 10 - 2
x = 8
x - 2 = 10
x - 2 + 2 = 10 + 2
x = 12
2x = 10
2x/2 = 10/2
x = 5
x/2 = 10
x/2 × 2 = 10 × 2
x = 20
I HOPE IT HELPS EVEN THOUGH YOUR ANSWER TO MY QUESTION IS JUST A NONSENSE.subtract 9t*3-3t+8 and t*2-8t+4 from the sum of 12t+8 and t*2 - 10t +3.
⇒Find the sum of 12t+8 and [tex]t^{2} -10t+3[/tex]
⇒For sum we add:
[tex]=(12t+8)+(t^{2} -10t+3)\\=12t-10t+8+3+t^{2} \\=2t+11+t^{2}[/tex]
⇒The next step is to subtract [tex]9t^{3} -3t+8[/tex] and [tex]t^{2} -8t+4[/tex] from the answer we got above.
[tex]=(2t+11+t^{2} )-(9t^{3} -3t+8)-(t^{2} -8t+4)\\=2t+11+t^{2} -9t^{3} +3t-8-t^{2} +8t-4\\=2t+3t+8t+11-8-4+t^{2} -t^{2} -9t^{3} \\=13t-1-9t^{3} \\[/tex]
⇒The answer is shown above.
The line 2y=3x intersects the ellipse x^2/8+y^2/18 = 1 at the points Q and R. What is the length of segment QR?
The distance between the points Q and R is 7.211 units.
What is an ellipse?In geometry, an ellipse is a two-dimensional shape, that is defined along its axes. An ellipse is formed when a cone is intersected by a plane at an angle with respect to its base. It has two focal points.
Given an equation of ellipse x²/8+y²/18 =1, a line 2y = 3x intersect the ellipse at points Q and R,
x²/8+y²/18 =1........ (i)
2y = 3x....... (ii)
Use eq 2 in 1, we get
x²/8+(3x/2)²/18 = 1
On solving, we get,
x²/4 = 1
x = ±2
And,
(2y/3)²/8+y²/18 = 1
On solving, we get,
y = ±3
Therefore, we got, y1 = 3, y2 = -3, x1 = 2 and x2 = -2
Using the distance formula, D = √(x1-x2)²+(y2-y1)²
QR = √(-2-2)²+(-3-3)² = 7.211
|QR| = 7.211
Hence, The distance between the points Q and R is 7.211 units.
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