Answer:
25
Step-by-step explanation:
Let the number be 10x+y.
So we have 2(10x+y)+2 = 10y+x, or
20x + 2y + 2 = 10y+x, or
19x=8y-2 …(1)
Try different values of x which satisfy (1) giving an integer value of y. Moreover x should be less than y. The only value of x is 2 which gives us y = 5.
So y = 5 and x = 2.
And the answer is 25.
We can prove this by simply doing the question's equation:
50(since it's the double of 25) + 2 =
50+2= 52
Hope this helps
I got test tomorrow help.
Question 8
1 pts
What is the best way to describe the central tendency of residential real estate prices in Westwood?
Hint: Westwood real estate is highly skewed. You are able to find houses that are $600,000 to
$69,000,000 with an average price of $1,020,000.
O Median
O Mean
The best way to describe the central tendency of residential real estate prices in Westwood is mean.
What are measures of central tendency?
A measure of central tendency attempts to describe a data set by determining the central value of the data set. Measures of central tendency are mean, median and mode
Mean is the average of a set of numbers.
Mean = sum of the numbers / total number
To learn more about mean, please check: https://brainly.com/question/25842202
MAX POINTS Help please and thanks
What is the period and frequency of the function graphed and how would the equation be written?
Answer:
Frequency is total number of complete cycle, made in a unit time.
Period is the time taken to complete a cycle.
Step-by-step explanation:
[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]
The required equation is :
[tex]\qquad \bf \dashrightarrow \:y =a \cos(bx) + k[/tex]
Now, let's find the required values :
period (p) = 6[distance between any successive Crest or trough]
a = - 4 (flipped)b = 2π/p = 2π/6 = π/3k = -2Distance of starting position from origin = k
Now, plug in the values ~
[tex]\qquad \bf \dashrightarrow \: - 4 \cos( \frac{\pi}{3} x) - 2[/tex]
Jeff is buying books at a used booksttore.He wants to approximate the total cost of his purchase before checking out
Steven is 42 inches tall. On average he grows at a rate of 5.5% each year. How tall will
Steven be in 3 years?
Answer:
about 49.3 inches
Step-by-step explanation:
[tex]42 \times {1.055}^{3} = 49.318[/tex]
Add. Write your answer as a mixed number in simplest from.
7 3/4 + 4 2/7
Answer: 12 1/28
Step-by-step explanation:
Add whole numbers. Solve fractions by finding the LCD.
[tex]\begin{equation}\text { Question: The value of } \lim _{n \rightarrow \infty} \frac{1}{n} \sum_{r=0}^{2 n-1} \frac{n^{2}}{n^{2}+4 r^{2}} \text { is }\end{equation}[/tex]
You have something resembling a Riemann sum. Multiply through the summand by 1/n², then you can write
[tex]\displaystyle \lim_{n\to\infty} \frac1n \sum_{r=0}^{2n-1} \frac{1}{1+4\left(\frac rn\right)^2} = \int_0^2 \frac{dx}{1+4x^2} = \boxed{\frac12 \tan^{-1}(4)}[/tex]
which expression is equivalent to
Answer:
Option D
Step-by-step explanation:
[tex]6\dfrac{3}{5}*\dfrac{5}{8}=\dfrac{5}{8}*6\dfrac{3}{5}[/tex]
Poperty : Commutative property of multiplication.
When two numberes are multiplied, changing the order of numbers will not change the result.
Simplify the expression with nested parentheses.
430+ 26+6−33
Answer:
using bodmas.
6-33=-27.
430+26=456.
456-27=429
PLS HELP MARK AS BRAINLIEST
Suppose that the relation S is defined as follows.
S= {(4, p), (p, 0), (3, 3), (7, m)}
Give the domain and range of S.
Write your answers using set notation.
Answer:
Domain= {4,p,3,7}
Range= {p,0,3,m}
Step-by-step explanation:
⇒Domain: is the set of the first number in every pair.
⇒Range: is the set of the second number in every pair
TO FIND THE DOMAIN: S= {(4,p),(p,0),(3,3),(7,m)}
so Domain= {4,p,3,7}
TO FIND THE RANGE: S= {(4,p),(p,0),(3,3),(7,m)}
so Range= {p,0,3,m}
Hope this helps :)
i need help please !!
Answer:
D. d-0.29
Step-by-step explanation:
29÷(0.29)=100
29÷0.29=100
They both equal 100 meaning that D is the answer.
please help find the area!
Ill mark brainliest!
A gelatin mold is in the shape of a hemisphere (half-sphere). If its diameter is 4 inches, find the exact volume of gelatin that 10 molds will hold.
Two hemispheres will be equal to a spheres, hence the volume of 10 hemispheres is 266.581 cubic inches
Volume of hemispheresGiven Data
Shape is that of hemisphereNo of hemisphere = 102 hemispheres = 1 sphere10 hemispheres = 5 spheresradius = 4inchesLet us find the volume of sphere
Volume = 4/3 *πr^3
Volume = 4/3*3.124* 4^3
Volume = 4/3*3.124*64
Volume =266.581 cubic inches
Learn more about hemispheres here:
https://brainly.com/question/25641436
Help pls! pls explain too
True or false, in a ratio the units are not written
Answer:
True
Step-by-step explanation:
A ratio is normally written using whole numbers only, with no units, in its simplest form. The numbers in a ratio must be written using the same units.
e.g. ratio of 1:2
False, ratio's do no have units.
Kaitlynn needs 3 pounds of fruit for a salad.
She already has 34 pound of apples and 13 pound of grapes.
How many more pounds of fruit does she need to buy?
Answer:
She has 1 and 1/12 pounds of fruit already and she needs 1 and 11/12 pounds more to have 3 total pounds
At andres birthday party 3 pizzas were ordered for lunch. Each pizza was divided into 8 equal slices. Each child ate 2 pieces and there were 2 pieces left how many children were at the party?
Answer: I dont know if im right for sure but the answer should be 4
Step-by-step explanation
8 goes into 2 4 times (8 divided by 2 = 4)
Each child ate 2 pieces (4-2=2)
so therefore for it to be 2 pieces left over there were 4 kids I think.
Answer:
11
Step-by-step explanation:
So each pizza has 8 equal slices but we don't know the amount pizzas but we can find it by doing this ⬇️
1 pizza= 8 slices
3 pizzas = x
you cross multiply it and it will end up as 3×8= 24 slices.
now each kid ate 2 pieces and there was a leftover of 2
therefore, 24-2= 22 pieces divided 2 is 11
or; 3×8=24-2=22÷2=11
Men's Shoe Sizes The shoe sizes of eight different men were used to create the box plot above. Which of the sets of measurements below matches the given box plot? A. Shoe Size: 7, 8, 8, 9, 10, 11, 11, 12 B. Shoe Size: 7, 9, 9, 9, 10, 11, 11, 12 C. Shoe Size: 7, 8, 8, 8, 8, 11, 11, 12 D. Shoe Size: 7, 8, 8, 9, 10, 10, 10, 12
Answer:
The answer is
→ A. Shoe Size: 7, 8, 8, 9, 10, 11, 11, 12
Step-by-step explanation:
Hope this helped! :^)
⭐Brainliest will be appreciated!⭐
✉️Message me if you have any more questions!✉️
- ✨7272033Alt✨
Submitted on 4/16/2022 at 5:38 PM
(To avoid plagarism, by users whom decide to copy.)
At Silver Gym, membership is $30 per month, and personal training sessions are $35 each. At Fit Factor, membership is $60 per month, and personal training sessions are $25 each. In one month, how many personal training sessions would Sarah have to buy to make the total cost at the two gyms equal?
Answer: 5 personal training sessions
Step-by-step explanation:
Given only 1 month, then set the 2 equations equal to each other, given that x=# of personal training sessions:
25+45x = 75 + 35x
-25-35x -25-35x
So, 10x=50; divide both sides by 10, to get:
5, so, 5 personal training sessions per month to make the 2 costs equal to one another.
4. The fourth proportional of 7,3 and 98 is:
A.
040
B.
042
Answer:
If
a
b
=
c
d
=
e
f
then prove that
2a+3c-4e
2b+3d-4f
=
5a-4c+3e
5b-4d+3f
1. If
a
b
=
c
d
=
e
f
, then prove that
2a+3c-4e
2b+3d-4f
=
5a-4c+3e
5b-4d+3f
2. If
x
b2-c2
=
y
c2-a2
=
z
a2-b2
, then prove that x+y+
Step-by-step explanation:
The required proportional of 7, 3, and 98 is 42. Option B is correct.
Given that,
The fourth proportional of 7,3 and 98 is to be determined.
Proportionality is defined as between two or more sets of values, and how these values are related to each other in the sense that are they directly proportional or inversely proportional to each other.
In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication, and division,
Here,
let the required proportional be x,
now,
7 / 3 = 98 /x
x = 98 * 3 / 7
x = 42
Thus, the required proportional of 7, 3, and 98 is 42. Option B is correct.
Learn more about proportionality here: https://brainly.com/question/22620356
#SPJ2
What is the domain and range? what type of relation is this
I need the answer!! Please answer
Rewrite each equation without absolute value for the given conditions
y=|x-5|+|x+5| if x>5
y=|x-5|+|x+5| if x<-5
y=|x-5|+|x+5| if -5
Step-by-step explanation:
Condition 1x > 5, both terms are positive
y = x - 5 + x + 5 = 2xCondition 2x < - 5, both terms are negative
y = - (x - 5) - (x + 5) = - x + 5 - x - 5 = - 2xCondition 3This is not clear
If x>5
Terms are positiveHence..
y=x-5+x+5=2xIf x<-5 terms are negative
y=-x+5-x-5=-2xIf x=-5
y=|-5-5|+|-5+5|y=|-10|y=10pa help guys,
probability distribution
Answer:
14
Step-by-step explanation:
Hope it helps
Question 7 (Essay Worth 5 points)
(7.03)
An equation is shown below:
6(2x - 11) + 15 = 21
Write the steps you will use to solve the equation and explain each step.
Answer:
x=6
Step-by-step explanation:
The first thing you should start with is distributing the 6 inside the parentheses, which would give us (12x - 66) + 15 = 21. Now we can add like terms on this side of the equation to get: 12x -51 = 21. Add the 51 to the right side to get 12x = 72, then divide both sides by 12 to get x = 72/12 or 6.
x=6
Hope this helps!
Marking this brainliest also helps me out too :)
f(x)= (x+1)/(x-1)
find the derivative using the definition
[tex]\text{Given that,}\\\\f(x)= \dfrac{x+1}{x-1}\\\\\\f'(x)=\lim\limits_{h \to 0} \dfrac{f(x+h) - f(x) }{h}\\\\\\ ~~~~~~~~=\lim\limits_{h \to 0} \dfrac{\left( \tfrac{x+h+1}{x+h-1}\right) - \tfrac{x+1}{x-1}}{h}\\\\\\~~~~~~~~=\lim\limits_{h \to 0} \dfrac{\tfrac{(x+h+1)(x-1) - (x+1)(x+h-1)}{(x+h-1)(x-1)}}{h} \\\\\\~~~~~~~~=\lim\limits_{h \to 0} \dfrac{\tfrac{x^2-x+hx-h+x-1 - x^2-xh+x-x-h+1}{(x+h-1)(x-1)}}{h}\\\\\\~~~~~~~~[/tex]
[tex]~~~~~~~=\lim\limits_{h \to 0} \dfrac{\tfrac{-2h}{(x+h-1)(x-1)}}{h}\\\\\\~~~~~~~~=\lim\limits_{h \to 0} \dfrac{-2}{(x+h-1)(x-1)}\\\\\\~~~~~~~~=\dfrac{-2}{(x+0-1)(x-1)}\\[/tex]
[tex]\\\\~~~~~~~~=\dfrac{-2}{(x-1)(x-1)}\\\\\\~~~~~~~~=\dfrac{-2}{(x-1)^2}[/tex]
36
36
is what percent less than 60
60
?
Answer:
thats only the answer <3
Apr 09,5:30:49 PM
Please help I am lost I’m not smart…
the piece-wise function is, -x - 5 when x ≠ -2
and when x = -2, the function's value is -2
what that means is when x = -4, the subfunction of -x - 5 is the one to use, because x = -4 is in that range
so f(-4) = -(-4) - 5 => f(-4) = -1.
so the function's graph look more or less like the one below, with a solid line going but with a gap at x = -2.
write an equation of the line in slope-intercept form where slope equals 1/4 and y-intercept equals 0, - 5
Answer:
[tex]y=\frac{1}{4}x-5[/tex]
Step-by-step explanation:
Write an equation of the line in slope-intercept form where slope equals 1/4 and y-intercept equals 0, - 5
Slope-intercept form: y = mx + b
m = slope
b = y-intercept (when x = 0)
Ex:
y = 5x + 2
m = 5b = (0, 2)For our problem:
[tex]y=\frac{1}{4}x-5[/tex]
m = [tex]\frac{1}{4}[/tex]b = (0, -5)Hope this helps!
I NEED HELP ON THIS QUESTION (I will give a Brainlist to the best one no links please.)
Answer:
1. 84.7
2. 24
3. 47.5
4. 57.5
Step-by-step explanation:
your welcome and mark as brainliest pls