Answer:
251,991 tons of ore are need to obtain 126 tons of gold.
Step-by-step explanation:
A paper plate has a diameter of 9 inches. What measure is closest to the area of the plate?
Answer:
63.62 inches squared
Step-by-step explanation:
The formula for the area of a circle is πr^2
r (Radius) is half of the diameter
r = 9/2
r = 4.5in
π x 4.5^2=
π x 20.25 = 63.6172512352
to 2 dp: 63.62 inches squared.
Answer:
The area of a plate with a diameter of 9 is 63.585
Step-by-step explanation:
A = πr² use 3.14 as pi
r = [tex]\frac{1}{2}[/tex] d
[tex]\frac{1}{2}[/tex] × 9 = 4.5
r = 4.5
A = 3.14 × 4.5²
A = 3.14 × 20.25
A = 63.585
Hope this helps!
Is 3/10 equivalent to 12/20 or 5/20?
Answer:
Neither?
Step-by-step explanation:
3/10 = 0.3
12/20 = 0.6
5/20 = 0.25
I would say that its up to you what you want to put.
Sorry if it doesn't help.
Find the sum of the first 200 terms of the arithmetic sequence that begins: 12, 18, 24, ...
Answer:
S₂₀₀ = 121800
Step-by-step explanation:
the sum to n term of an arithmetic sequence is
[tex]S_{n}[/tex] = [tex]\frac{n}{2}[/tex] [ 2a₁ + (n - 1)d ]
where a₁ is the first term and d the common difference
here a₁ = 12 and d = a₂ - a₁ = 18 - 12 = 6 , then
S₂₀₀ = [tex]\frac{200}{2}[/tex] [ (2 × 12) + (199 × 6) ]
= 100(24 + 1194)
= 100 ×1218
= 121800
A class has 45 students. Each student has either 5 dollars or 2 dollars. Which Which situation results in the class having an average of 3 dollars per student
Step-by-step explanation:
an average of $3 per student would mean
sum(all students $) / 45 = 3
sum(all students $) = 3×45 = 135
x students have $5.
therefore (45-x) students have $2.
5x + 2(45-x) = 135
5x + 90 - 2x = 135
3x = 45
x = 15
so, 15 students have $5, and 45-15 = 30 students have $2.
Can someone please explain this to me very detailed I don’t understand it. Please
Answer:
a140 b10
Step-by-step explanation:
a x(all the pupil)×25%=35
x=140
b. 16:y=40:25
y=16×25/40=20
There are two numbers, and one is 7 more than twice the other. The sum of the numbers is 3. What are the numbers? And what is the equation?
Answer:
2x + 7 = 3
2x = 3 - 7
2x = -4
2x/2 = -4/2
x= -2
Therefore the numbers are -2 and 7.
The length of a field measures 3.5 miles.
what does the length of the field measure in feet?
note: 1 mile = 5,280 feet
13,200 ft
15,840 ft
18,480 ft
21,120 ft
Answer:
18480 feet
Step-by-step explanation:
5280 feet are in a mile 3.5 ×5280=18480
Label the X-axis and yaxis
Answer:
The y axis is the vertical line which goes up and down the x axis is the horizantal line which goes side to side or straight across
Step-by-step explanation:
y=-2x+8
y=x-7
solved by graphing
Answer:
See the attached graph
Step-by-step explanation:
The solution is the labelled point of intersection in the graph
can someone explain to me the letter or sign or variable after "Y"
Answer:
It is a symbol used to denote an angle (or something else)
Step-by-step explanation:
Alpha(α) is a greek letter, it's one of the letters used to denote angles. Other such letters you'll often see in math are Beta (β), Gamma (γ), Delta (δ), these are used to denote angles. Also, pi (π), which is a mathematical constant. The letters phi (φ) and theta (θ) are also used for angles very often, especially in formulas. You'll see some of these in physics too.
It can be used as variable too, not necessarily for angles, but it's mostly used for them.
come up with a scenario that models an inverse variation situation provide at least four data pairs for the situation
Best examples
Boyles law
P is inversely proportional to VP1V1=P2VCurrent with resistance
I1R1=I2R2Resistance with length of wire
R1l1=R2l2Pressure with area
P1A1=P2A2Nico is planting grass in his backyard. He is using 1 foot grass squares and has to cover an area that is 24 feet long and 20 feet wide. How many 1 foot squares does Nico need
Answer:
480 tiles
Step-by-step explanation:
First we will find the area of Nico's backyard
Formula for area of a rectangle is length * width
24ft * 20ft = 480ft²
This means Nico will need 480 1ft² tiles
That is your answer
- Kan Academy Advance
Find two integers whose sum is 3 and product is -28 ?
Answer:
-4 and 7
Step-by-step explanation:
-4 + 7 = 3
-4•7 = -28
17 students and 15 teachers went on a field trip to an art museum. student tickets cost $10 each, and adult tickets cost $12 each. How much did the museum tickets cost in all?
Answer:
350 dollars
Step-by-step explanation:
We're given:
17 students15 teachersStudent ticket = 10 dollarsAdult ticket = 12 dollarsFirst, find the total cost for student tickets:
17 students × 10 dollars = 170 dollarsTherefore, the total cost for student tickets was 170 dollars.
Now, find the total cost for adult tickets:
15 teachers × 12 dollars = 180 dollarsTherefore, the total cost for adult tickets was 180 dollars
To find the total cost for the museum tickets, find the sum:
180 + 170 = 350 dollars
Therefore, the museum tickets cost 350 dollars in total.
Complete:
33/50 = ?*/100
= ?**
*answer #1
**answer #2 (answer #1 as a decimal)
thanks :)
Answer:
66/100 = 0.66
Step-by-step explanation:
You can solve for the question mark value as though it were any other variable, or you can recognize the relationship between the numbers in the proportion.
__
solve for ?33/50 = ?/100
100(33/50) = ? = 66 . . . . . multiply both sides by 100
Then we know ...
33/50 = 66/100 = 0.66
__
recognize the relationship[tex]\dfrac{33}{50}=\dfrac{\text{?}}{100}\\\\\dfrac{2\cdot33}{2\cdot50}=\dfrac{66}{100}=0.66[/tex]
_____
Additional comment
Both 66/100 and 0.66 are pronounced "sixty-six hundredths".
Answer:
66/100 = 0.66
Step-by-step explanation:
Guy above and my test.
y=x^4-x^3-5x^2-x-6
Show steps
Answer:
The roots (zeros) are the x values where the graph intersects the x-axis. To find the roots (zeros), replace y with 0 and solve for x. x= i, −i, 3,−2
Step-by-step explanation:
Answer:
[tex](x-3)({x}^{2}+1)(x+2)[/tex]
Step-by-step explanation:
1) Factor [tex]x^4 - x^3 - 5x^2 - x - 6[/tex] using Polynomial Division.
1 - Factor the following.
[tex]x^4 - x^3 - 5x^2 - x - 6[/tex]
2 - First, find all factors of the constant term 6.
[tex]1, 2, 3, 6[/tex]
3 - Try each factor above using the Remainder Theorem.
Substitute 1 into x. Since the result is not 0, x-1 is not a factor..
[tex]1^4 - 1^3 - 5 * 1^2 - 1 - 6 = - 12[/tex]
Substitute -1 into x. Since the result is not 0, x+1 is not a factor..
[tex]( - 1 ) ^ 4 - ( - 1 ) ^ 3 - 5 ( - 1 ) ^ 2 + 1 - 6 = - 8[/tex]
Substitute 2 into x. Since the result is not 0, x-2 is not a factor..
[tex]{2}^{4}-{2}^{3}-5\times {2}^{2}-2-6 = -20[/tex]
Substitute -2 into x. Since the result is 0, x+2 is a factor..
[tex]{(-2)}^{4}-{(-2)}^{3}-5{(-2)}^{2}+2-6 = 0[/tex]
⇒ [tex]x+2[/tex]
4 - Polynomial Division: Divide [tex]{x}^{4}-{x}^{3}-5{x}^{2}-x-6[/tex] by [tex]x+2[/tex]
[tex]x^3[/tex] [tex]-3x^2[/tex] [tex]x[/tex] [tex]-3[/tex]
--------------------------------------------------------------
[tex]x+2[/tex] | [tex]x^4[/tex] [tex]-x^3[/tex] [tex]-5x^2[/tex] [tex]-x[/tex] [tex]-6[/tex]
[tex]x^4[/tex] [tex]2x^3[/tex]
------------------------------------------------------------
[tex]-3x^3[/tex] [tex]-5x^2[/tex] [tex]-x[/tex] [tex]-6[/tex]
[tex]-3x^3[/tex] [tex]-6x^2[/tex]
---------------------------------------
[tex]-3x[/tex] [tex]-6[/tex]
[tex]-3x[/tex] [tex]-6[/tex]
---------------
5 - Rewrite the expression using the above.
[tex]{x}^{3}-3{x}^{2}+x-3[/tex]
2) Factor out common terms in the first two terms, then in the last two terms.
[tex]({x}^{2}(x-3)+(x-3))(x+2)[/tex]
3) Factor out the common term [tex]x-3[/tex].
[tex](x-3)({x}^{2}+1)(x+2)[/tex]
The coordinates of quadrilateral jklm plotted on a coordinate plane are j(-2,3), k(3,7), l(6,5) and m(1,1).
enter a number in the box to complete the sentence.he perimeter of the quadrilateral is 90units. round your answer to the nearest tenth.
The perimeter of quadrilateral JKLM with the given coordinates is approximately 20.0 units.
What is the Perimeter of a Quadrilateral?Perimeter of a quadrilateral = sum of all four sides of the quadrilateral.
Given the coordinates of quadrilateral JKLM as:
J(-2,3)K(3,7)L(6,5)M(1,1)Use the distance formula, [tex]d = \sqrt{(y_2 - y_1)^2 + (x_2 - x_1)^2}[/tex], to find each segment of the quadrilateral .
JK = √[(3−(−2))² + (7−3)²]
JK = √41
JK ≈ 6.4 units
KL = √[(3−6)² + (7−5)²]
KL = √13
KL ≈ 3.6 units
LM = √(1−6)² +(1−5)²]
LM = √41
LM ≈ 6.4 units
JM = √(1−(−2))² + (1−3)²]
JM = √13
JM ≈ 3.6 units
Perimeter of quadrilateral JKLM = 6.4 + 3.6 + 6.4 + 3.6 = 20 units.
Learn more about the perimeter of a quadrilateral on:
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(pls give the answer and working out)
simplify fully:
Answer:
As you wish love, 2sqrt x 3sqrt8 = 12sqrt6
Step-by-step explanation:
2sqrt3x3sqrt8
Simplify,
2sqrt3 x 3 x 2sqrt2
Evalutate,
12sqrt6
Find the measure of the missing angles.
Helpppp
I'll give 50 pts
Answer:
Step-by-step explanation:
Answer:
i agree with the other anwser!!
Step-by-step explanation:
Amazon stock has been rising for the past week. One stock was originally $6.75 , but the price has risen 135%. What is the new price?
Answer:
$15.86
Step-by-step explanation:
what are the zeros of the function below?
*EXPLANATION NEEDED*
f(x) = (x^2 - 9) (x +1)
A. -1, -3, 3
B. -1, -3, 1
C. -1, 3, 1
D. 1, -3, 3
If the factor of the function are (x - 3), (x + 3), and (x + 1). Then the zeroes of the function will be negative 3, 3, and negative 1. Then the correct option is A.
What is a factorization?It is the method to separate the polynomial into parts and the parts will be in multiplication. And the value of the polynomial at this point will be zero.
The function is given below.
[tex]\rm f(x) = (x^2 - 9) (x +1)[/tex]
The function can be written as
[tex]\rm f(x) = (x^2 - 3^2) (x +1)\\\\\rm f(x) = (x - 3)(x+ 3) (x +1)[/tex]
If the factor of the function are (x - 3), (x + 3), and (x + 1). Then the zeroes of the function will be negative 3, 3, and negative 1.
More about the factorization link is given below.
https://brainly.com/question/6810544
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How many degrees does a minute hand move in 45 minutes?
Answer:
270°
Step-by-step explanation:
Complete angular measurement of clock = 360°No. of minutes in one hour = 60 Angle moved in one minute = 360°/60 = 6°Angle moved in 45 minutes = 45*6° = 270°Select the correct answer from each drop-down menu.
Three students used factoring to solve a quadratic equation.
x² + 17x + 72 = 12
Jordan's Solution Keith's Solution Randall's Solution
x² + 17x + 72 = 12 x² + 17x + 72 =12 x² +17x +72 = 12
(x + 8)(x + 9)= 12 x² + 17x +60 =0 x2 +17x = -60
x+8=12 & x+9=12 (x +5)(x +12) +0 x(x +17) = -60
x + 5 =0 & x + 12 = 0 x = -60 & x +17 = -60
The equation was solved correctly by ____. The solutions of the equation are ____
Answer:
Step-by-step explanation:
x = -5 and x = -12 are the solutions.
Looks like Keith's solution is the correct one as he got as far as
x + 5 = 0 and x + 12 = 0.
I need help what is (4÷5×x) what I x
Answer:
0.8x
Step-by-step explanation:
According to BODMAS,
Step 1 :
4 ÷ 5
= 4 / 5
= 0.8
Step 2 : Multiply x.
0.8 * x = 0.8x
Answer:
Step one
4 ÷ 5
= 4/5
= 0.8
Step two = 0.8 * x
= 0.8x
I need help with this math question thank you
Answer:
A
Step-by-step explanation:
Tegan is checking her tax bill for the last year
the tax rates were as follows:
•no tax on the first £11000 of earnings
•earnings in excess of £11000 and up to £43000 taxed at a rate of 20%
•earnings in excess of £43000 and up to £150000 taxed at the rate of 40%
last year Tegan earned £48300 before tax
how much did she pay in total?
Multiplication is the process of multiplying. The total tax of Tegan's earnings will be £8,520(£6,400+£1,200).
What is multiplication?Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. For example, 3 × 4 means 3 is added to itself 4 times, and vice versa for the other number.
Since there is no tax for the first £11,000, therefore, the earnings upto £11,000 will be tax-free.
The amount of tax for the income of £11,000 to £43,000, will be,
20% of (£11,000 to £43,000)
= 20% × (£43,000 - £11,000)
= £6,400
The amount of tax for the income of £11,000 to £150,000, will be,
40% of (£43,000 to £48,300)
= 40% × (£5,300)
= £2,120
Hence, the total tax of Tegan's earnings will be £8,520(£6,400+£1,200).
Learn more about Multiplication:
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Answer:
£8520
Step-by-step explanation:
A point is plotted on the number line at 4 3/5 . A second point is plotted at −3 3/4 .
What is the length of a line segment joining these points?
Enter your answer as a simplified mixed number in the box.
Answer:
8 7/20
Step-by-step explanation:
Converting both numbers to improper fractions :
4 3/5
⇒ (4 x 5/5) + 3/5
⇒ 20/5 + 3/5
⇒ 23/5
-3 3/4
⇒ - (3 x 4/4 + 3/4)
⇒ - (12/4 + 3/4)
⇒ -15/4
Take the LCM as 20 and convert :
23/5
⇒ 23/5 x 4/4
⇒ 92/20
-15/4
⇒ -15/4 x 5/5
⇒ -75/20
Now find the difference :
⇒ 92/20 - (-75/20)
⇒ 92/20 + 75/20
⇒ 92 + 75 / 20
⇒ 167/20
Now convert into a mixed number :
⇒ 167/20
⇒ 8 7/20
Find the difference
4-3/5-(-3-3/4)23/5+15/44(23)+5(15)/2092+75/20167/208-7/20Help meee pleaseeeeeeee
Answer:
The answer to this question is letter choice E. 25%.
Step-by-step explanation:
Since 3/12 circles are shaded it would be the same as 25% or 1/4 if simplified.
Help will give brainilist ✨✨✨
Answer:
The answer to the first question is
[tex]16.37[/tex]
The answer to the second question is D
