Answers
i dont see it it is too far
Answer:
see explanation
Step-by-step explanation:
A - eliminate the fractions → d
B
[tex]\frac{1}{r_{1} }[/tex] + [tex]\frac{1}{r_{2} }[/tex] = [tex]\frac{1}{R}[/tex]
multiply through by Rr₁r₂ to clear the fractions
Rr₂ + Rr₁ = r₁r₂ ( factor out R from each term on the left side )
C
R(r₂ + r₁) = r₁r₂ ← divide both sides by (r₂ + r₁)
R = [tex]\frac{r_{1}r_{2} }{r_{2}+r_{1} }[/tex]
Related Questions
PLEASE HELP WORTH EXTRA POINTS!!
Dilate triangle A by a scale factor of 1/3, translate it three units up and two units to the right, and rotate it 90 degrees clockwise about the origin.
Are the triangles similar or congruent and explain why?
Answers
Answer:
the triangle has 1/3 so the area of parallelogram is equal
If the exterior angle of a regular
polygon measures 12°, how
many sides does the polygon
have?
Answers
Work Shown:
E = exterior angle = 12 degrees
n = number of sides
n = 360/E
n = 360/12
n = 30
This regular polygon has 30 sides.
Where in real-life will we come across something that is more than 100%, e. G. 135%? Give three examples
Answers
Real life situations can be represented using mathematical statements
Examples of real life situations of things more than 100% are:
Markup pricesEnlarging the area of a gardenIncrease in savingsHow to determine the real life scenariosWhen something is greater than 100%, then there is an increment in the thing.
Take for instance, a unit of apple that was sold at $4 is not $10.
The percentage change is 150%
Other possible scenarios are when the area of a garden is enlarged and when you increase your weekly savings by more than 100%
Read more about percentage change at:
https://brainly.com/question/11360390
4 feet wide and 8 feet tall a manufactur wants to use a scale factor of 1.5 to englarge a window. what will the area of the window be after it is enlarged
Answers
Answer:
72 square feet
Step-by-step explanation:
[tex]4*1.5=6[/tex]
[tex]8*1.5=12[/tex]
[tex]6*12=72[/tex]
1 over 11 time what equals 1
Answers
1/11 x 11 = 1
^^^ This is basically
1. 11. 11
— x — = — = 1
11. 1. 11
The 11 also crosses itself out because of cross multiplication so it could be 1/1
The “what” is 11
Anya buys some avocados that cost $1.50 each. What is the total cost of her
purchase?
O A. = 1.5+ c
O B. n=1.50
C. c = 1.5n
D. C=n divide 1.5
Answers
Because it says $1.50 EACH so to get the answer you’ll need to multiply $1.50 with each avocado she buys to get the total cost
Fill in the blank so that the ordered pair is a solution of y=9x - 9.
( ), 63
Answers
Answer:
(8, 63)
Step-by-step explanation:
The ordered pair is a solution to the equation when substituting the values for x and y make the equation a true statement.
If we let x represent the first number of the ordered pair, it will be a solution when ...
63 = 9x -9
7 = x -1 . . . . . . . divide by 9
8 = x . . . . . . . add 1
The blank gets filled with 8, so the ordered pair is (8, 63).
By what percent will a fraction increase if its numerator is decreased by 30%
а
and its denominator is decreased by 50%?
Answers
Answer:
40%
Step-by-step explanation:
Let x = numerator
Let y = denominator
[tex]\implies \dfrac{x}{y}[/tex]
Decreased by 30% = 100% - 30% = 70% = 70/100 = 0.7
Decreased by 50% = 100% - 50% = 50% = 50/100 = 0.5
[tex]\implies \dfrac{0.7x}{0.5y}[/tex]
[tex]\implies \dfrac{0.7}{0.5}=1.4[/tex]
[tex]\implies 1.4 \ \dfrac{x}{y}[/tex]
1.4 as a percentage = 1.4 x 100 = 140%
Therefore, the percentage increase is 140 - 100 = 40%
Hey I could use some help with this asap. Thank you. Will be marked.
Answers
Answer:
top left
Step-by-step explanation:
2.5=2 1/2=5/2
2 over 5 up
top left
What is the factorization of the polynomial below?
5x2 - 35x + 60
Answers
Answer:
[tex]5(x-3)(x-4)[/tex]
Step-by-step explanation:
[tex]5x^2-35x+60[/tex]
Start by factoring out a 5:
[tex]5(x^2-7x+12)[/tex]
We need to find two integers that have a product of 12, and a sum of -7:
(-3)(-4)=12
-3-4=-7
We can split -7x into -3x and -4x
[tex]5(x^2-3x-4x+12)[/tex]
Factor each half separately:
[tex]5[x(x-3)-4(x-3)][/tex]
Since x and -4 are both being multiplied by x-3, we can combine them:
[tex]5(x-3)(x-4)[/tex]
the angles of a triangle are(x+10), (x+40) and (2x-30). Find the measure of all angles and name the type of triangle
Answers
Answer:
x=40
Step-by-step explanation:
(x+10)+(x+40)+(2x-30)=180
(x+x+2x)+(10+40-30)=180
4x+20=180 step 1: -20 on both sides
4x=160 step 2: /4 on both sides
x=40
2/3 x 1/4 please answer NOW ( brainliest to whoever answers first!!!
Answers
Answer:
1/6
Step-by-step explanation:
What is the answer to 11 > b + 4 > -6
Answers
[tex]11 > b+4 > -6\\11 - 4 > b > -6-4\\7 > b > -10[/tex]
Hope that helps!
help.
4x^7y^6 + 9x^3y x 2x^4y^5
Answers
Answer:
9x9y6+4x7y^6
Step-by-step explanation:
4x^7y^6+9x^3yx2x^4y^5
=4x^7y^6+9x^9y^6
=9x^9y^6+4x^7y^6
Answer:
4x^7y^6 + 18x^6y^6
find the area of this triangle
Answers
Answer:
[tex]54 \: {in}^{2} [/tex]
Step-by-step explanation:
Area calculation:
[tex] \frac{9 \times 12}{2} = 54 \: {in}^{2} [/tex]
Answer:
A = 54 in^2
Step-by-step explanation:
The area of a triangle is given by
A = 1/2 bh where b is the base and h is the height
A = 1/2 (12)(9)
A = 54 in^2
Please solveeeeeeee!
Answers
Answer:
D. -14
Step-by-step explanation:
Add 2 to both sides = -3/7b=6
Multiply both sides by 7 = -3b=42
Divide 42 by -3 =-14
Hope this helps!
Andrew measured the floor on his storage unit, which is rectangular. It is 4 meters wide and 5 meters from one corner to the opposite corner. How long is the storage unit
Answers
Answer:
3
Step-by-step explanation:
:
The ratio of Amber's age to her brother Zach's age is 1 : 2. Find the
missing age.
6. Amber is 10; Zach is ?
7. Zach is 26; Amber is?
Answers
7. If Zach is 26, Amber is 13.
Basically, the ratio of Amber’s and Zach’s ages, which is 2:1, means that Amber is half Zach’s age/Zach is twice Amber’s age.
I hope this helps!
a
In a survey of 450 people, 74% admitted that
they hate brussels sprouts. How many people in
this survey hate this vegetable?
Answers
Answer:
333 people
Step-by-step explanation:
74% of 450 = 0.74
0.74 × 450 = 333
Have a great day! :D
There are 333 peoples in this survey hate this vegetable.
What is mean by Percentage?A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.
We have to given that;
In a survey of 450 people, 74% admitted that they hate brussels sprouts.
Hence, Number of peoples in this survey hate this vegetable is,
⇒ 74% of 450
⇒ 74/100 × 450
⇒ 333
Learn more about the percent visit:
https://brainly.com/question/24877689
#SPJ2
find the area 8ft. 7ft. 14ft. ( EXPLAIN)
Answers
Answer:
The area is 77 ft.
Step-by-step explanation:
The formula for area of a trapezoid is 1/2 (base1 + base2) x height.
So, 1/2 (14+8) x 7 = 77.
Answer:
77Ft
if we were to ignore the extra "space" or area, and just do the area of the square we would get 8x7, but you probably want to know how I figured the area of both triangles, well this is simple the triangle has a height of 7 while it has a base(bottom) of 3 since 14-8(top)=6 and there are two triangles and they are the same lenght, when there is a triangle we do the base x height then divide by 2 since it's half a square so we do in this situation 3x7=21 and since there is another triangle we do it one more 3x7=21 add them together 3x7x2=42 then divide this by 2 and we get 21, we then add this to 56 which is the area of the square and get our result 77ft
Solve and write your answer as a fraction
Answers
Step-by-step explanation:
please mark me as brainlist please
Can I please help me with this math question
Answers
Answer:
y =
-4
-3
-2
-1
0
Select from the drop-down menu to correctly complete the statement.
The product of 5 and 7/8 is
Choose...
A. greater than 5
B. less than 5
C. equal to 5
because 7/8 is less than 1.
Answers
Answer:
c
Step-by-step explanation:
hope it helps u have a good day
Answer:
correct answer is A ..because it passed 5 and about to reach 6 ..only 1/8 left to be 6
Conjecture: The product of the lengths of the two legs of a right triangle is equal to the product of the lengths of the hypotenuse and the altitude.
Is this true? Use Geogebra to help you create a figure to use in support of your conclusion. Insert a screenshot and show all of your calculations.
Answers
Hi there!
The answer is True.
(For Proof and explanation, please check the attached picture)
[tex]Have \: a \: great \: day! \: :)[/tex]
Evaluate S5 for 600 300 150 … and select the correct answer below. 1,162. 5 581. 25 37. 5 18,0600.
Answers
Answer:
The answer is 1,162.5
Can someone help with this challenging graph
Answers
Answer:
(a) (-∞, -8) (-6, -4) (-2, ∞)
(b) -6, -2
(c) negative
(d) 5
Step-by-step explanation:
(a) A function is "decreasing" when the y-value decreases as the x-value increases.
⇒ the function is decreasing over these intervals : (-∞, -8) (-6, -4) (-2, ∞)
(b) Local maxima are the points on the function where it reaches a maximum.
⇒ maxima at x = -6 and x = -2
(c) negative
(d) 5
A dozen cupcakes cost $36. What is the rate, and the unit rate?
Answers
Answer:
A unit rate has a denominator of 1 unit when the rate is written as a fraction. To write a rate as a unit rate: divide the numerator and the denominator of the rate by the denominator. Example #1: A rate compares two quantities of different units. Each part of the rate must be labeled!
Step-by-step explanation:
Sana maka tulong
80 points help meez In the diagram, ΔUVW~ΔXYW. Use similarity criteria for triangles to determine determine the height of the tree. Then fill in the blank:
h = _____ ft (Answer with numbers only.)
Answers
Answer:
look at the picture i have sent
Solve for X (Trigonometry)
Answers
Answer:
7.0
Step-by-step explanation:
When doing trigonometry, remember SOH-CAH-TOA...
Sine : Opposite/Hypotenuse
Cosine : Adjacent/Hypotenuse
Tangent : Opposite/Adjacent
In this figure, we are given the measure of a 23° angle, and two sides that are opposite of the angle, and the hypotenuse.
This means we need to use sine:
[tex]sin(23)=\frac{x}{18}[/tex]
Multiply both sides by 18:
[tex]18sin(23)=x[/tex]
[tex]18(0.391)=x\\x=7.038\\x\approx7.0[/tex]
Solve the following system of equations
Y= -2x – 3
4y + x =16
Answers
Answer:
(-4,5)
*View attached graph*
Step-by-step explanation:
y = -2x - 3
4y + x = 16
4y + x = 16
4(-2x - 3) + x = 16
-8x - 12 + x = 16
-7x - 12 = 16
+12 + 12
-7x = 28
/-7 /-7
x = -4
4y + x = 16
4y + (-4) = 16
4y - 4 = 16
+ 4 + 4
4y = 20
/4 /4
y = 5
(x,y) -> (-4,5)
Hope this helps!
