Answers
Answer:
See below
Step-by-step explanation:
a)
[tex] \frac{20}{ \sqrt{10} } = \frac{20 \sqrt{10} }{ \sqrt{10} \times \sqrt{10} } = \frac{20 \sqrt{10} }{10} = 2 \sqrt{10} [/tex]
b)
[tex] \frac{ \sqrt{2} }{2 \sqrt{5} - 1 } \\ \\ = \frac{ \sqrt{2} \times (2 \sqrt{5} + 1 )}{(2 \sqrt{5} - 1)(2 \sqrt{5} + 1) } \\ \\ = \frac{ \sqrt{2} \times 2 \sqrt{5} + \sqrt{2} \times 1 }{(2 \sqrt{5} ) ^{2} - (1)^{2}} \\ \\ = \frac{ 2 \sqrt{10} + \sqrt{2}}{20 - 1} \\ \\ = \frac{ 2 \sqrt{10} + \sqrt{2}}{19} \\ \\ equating \: it \: with \: \\ \frac{ a + \sqrt{b}}{c} \\ \\ a = 2 \sqrt{10} \\ \\ b = 2 \\ \\ c = 19[/tex]
Answer:
The above answer is correct
Related Questions
Which one plss I need to pass
Answers
Answer:
the middle or bottom one
Step-by-step explanation:
-4 < t + 2 < 4
How do you do this?
Answers
Answer:
t(-6,2)
Step-by-step explanation:
t(-6,2)
t+2>-4
t+2<4
t>-6
t+2<4
t>-6
t<2
What is the midpoint of the segment shown below (3, 7) (2, -1)
Answers
Answer:
(3,7) (2,-1)
(y1,Y2K)(z1,z2)
(y2-y1)(z2-z1)
(7_3)(-1-2)
(4)(-3)
=-12
What is the area for this?
Answers
Answer:
174 ft sq is area of this figure
A coin with a head side and a tail side is flipped 3 times.
What is the probability that it lands on tails all 3 times?
Answers
Answer:
like a 10% chance
Step-by-step explanation:
Find the 80th derivative of f(c)
ET
sin(2).
f(80)
Submit Question
Answers
Compute the first few derivatives to reveal a pattern:
f(x) = x sin(x)
f '(x) = x cos(x) + sin(x)
f ''(x) = (-x sin(x) + cos(x)) + cos(x) = -x sin(x) + 2 cos(x)
f '''(x) = (-x cos(x) - sin(x)) - 2 sin(x) = -x cos(x) - 3 sin(x)
f ''''(x) = (x sin(x) - cos(x)) - 3 cos(x)) = x sin(x) - 4 cos(x)
f ⁽⁵⁾(x) = (x cos(x) + sin(x)) + 4 sin(x) = x cos(x) + 5 sin(x)
f ⁽⁶⁾(x) = (-x sin(x) + cos(x)) + 5 cos(x) = -x sin(x) + 6 cos(x)
f ⁽⁷⁾(x) = (-x cos(x) - sin(x)) - 6 sin(x) = -x cos(x) - 7 sin(x)
f ⁽⁸⁾(x) = (x sin(x) - cos(x)) - 7 cos(x) = x sin(x) - 8 cos(x)
and so on.
The pattern should be clear: for some integer k,
• if n = 4k, then f ⁽ⁿ ⁾(x) = x sin(x) - n cos(x)
• if n = 4k + 1, then f ⁽ⁿ ⁾(x) = x cos(x) + n sin(x)
• if n = 4k + 2, then f ⁽ⁿ ⁾(x) = -x sin(x) + n cos(x)
• if n = 4k + 3, then f ⁽ⁿ ⁾(x) = -x cos(x) - n cos(x)
80 is a multiple of 4, so the 80th derivative falls in the first category. Then
f ⁽⁸⁰⁾(x) = x sin(x) - 80 cos(x)
reducción de 7a-10b+6b+2a+9a=
Answers
Answer:
7a-10b+6b+2a+9a=?
7a+2a+9a= 18a
-10b+6b= -4b
Final: 18a-4b
Step-by-step explanation:
Hope that this helps you out! :)
Is this expression equivalent to 1.5?
1.5 / 10
(1.5 divided by 100)
Answers
Answer:
Very False
Step-by-step explanation:
1.5 divided by 100 I can tell you is not equivalent to 1.5
I need help with this
Answers
Answer:
what is your cam qlty
Step-by-step explanation:
Answer:
22ft^2
132 ft^3
Step-by-step explanation:
Alexander needs to collect at least 120 cans for a food drive to urban community service credit he has already collected 64 items
Answers
Answer:
120-64=56
Step-by-step explanation:
please help please really need help please
Answers
Answer:
x = 1
y = -2
Step-by-step explanation:
5x - 2y = 9 -----------(I)
2x + 7y = -12 --------------(II)
Multiply (I) by 7 35x - 14y = 63
Multiply (II) by 2 4x + 14y = - 24 {Now add and thus y will be eliminated}
39x = 39
x = 39/39
x = 1
Plugin x = 1 in equation(I)
5*1 - 2y = 9
5 -2y = 9
-2y = 9 -5
-2y = 4
y = 4/-2
y = -2
There are 3 space helmets and you take away 2,how many do you have?
Answers
Answer:
1 space helmet
Step-by-step explanation:
subtract 3-2 = 1 helmet
There are 10 socks in a bag. 5 of those socks are blue.
Answers
Answer:
so 1/2 of those socks aren't blue?
2. Which of the following fractions is greater
than 3/4?
A 1/4
B 5/6
C 3/8
D 2/3
Answers
A 1/4 = 0.25
B 5/6 = 0.83333
C 3/8 = 0.375
D 2/3 = 0.6666
Therefore B 5/6
Answer: I THINK it would be 1/4. I could be incorrect though.
Please help, geometry homework. Answer true or false for the following statements. The ones that are marked “ T” or “ F “ are already done, if I am wrong, please let me know.
Answers
2. True
3. False
4. False
5. False
13. False
14. False
Pls answer if you know the ANSWER
Cindy had 5 blue cars and 12 red cars in her collection. what is the ratio of blue cars to red cars. SELECT ALL THAT APPLY
5:17
5:12
5:7
12:5
Answers
Answer:
5:12
Step-by-step explanation:
Explanation: 5 blue cars, and 12 red cars. Therefore, the answer is 5:12.
35 POINTS AND BRAINLIEST PLEASE ANSWER PROPERLY MUST BE DONE IN 10MIN
Answers
C 89.54 goes to A
D goes to B
A goes to C
B goes to D
F goes to E
Since the laptop is on sale, that would make it $206.99.
On Monday, Maggle ran n miles. On Tuesday, she ran 90% of the number of miles that she ran on Monday. On Wednesday, she ran 50% of the
number of miles that she ran on Tuesday.
Move a symbol to the box and expressions to the blanks to create two equivalent expressions that represent the total number of miles
Maggie ran on Monday, Tuesday, and Wednesday.
First expression: n +0.91
Second expression:
+
х
0.45
0.45n
0.5
0.5
1.35
1.5
2.35
Answers
Answer:
[tex]Total = 2.35n[/tex]
Step-by-step explanation:
Given
Monday = n
Tuesday = 90% of Monday
Wednesday = 50% of Tuesday
Required
Determine the total miles
We have:
Tuesday = 90% of Monday
Substitute n for Monday
Tuesday = 90% of n
[tex]Tuesday = 90\% * n[/tex]
Express percentage to decimal
[tex]Tuesday = 0.90 * n[/tex]
[tex]Tuesday = 0.90n[/tex]
We also have that:
Wednesday = 50% of Tuesday
Wednesday = 50% * Tuesday
Substitute 0.90n for Tuesday
[tex]Wednesday = 50\% * 0.90n[/tex]
Express percentage to decimal
[tex]Wednesday = 0.50 * 0.90n[/tex]
[tex]Wednesday = 0.45n[/tex]
The total number of miles is:
[tex]Total = Monday + Tuesday + Wednesday[/tex]
[tex]Total = n + 0.90n + 0.45n[/tex]
[tex]Total = 2.35n[/tex]
Two containers of gasoline hold a total of 43 gallons. The big container can hold 8 less than twice the
smaller container. How many gallons does each container hold?
The smaller container holds
gallons while the larger one contains
gallons
Question Help D Video Written
Answers
Answer:10
Step-by-step explanation:
Find the length of side x in simplest radical form with a rational denominator.
45°
45°
x
√2
_
_
Answers
Answer:
a & b=a
Step-by-step explanation:
If a triangles' degrees are 45° 45° and 90°; you have what is called a Special Right Triangle. This is simple and easy to understand with the right equations and setup. Draw yourself a right triangle with side a & b being the same length, label your triangle and angles. I am guessing with the limited question that your side x is either side a or b on your triangle, which means they are both the same length. But if you have a measurement for side c, your hypotenuse, the equation would be: c
[tex] \frac{c \sqrt{2} }{2} [/tex]
Interior-Angle
Lesson 7.8
Divide the polygon into triangles. Then, multiply the number
of triangles by 180 to find the interior-angle sum for each
polygon.
Answers
Answer:
To find the sum of interior angles of a polygon, multiply the number of triangles in the polygon by 180°. The formula for calculating the sum of interior angles is ( n − 2 ) × 180 ∘ where is the number of sides. All the interior angles in a regular polygon are equal.
copied from,
www.bbc.co.uk › guides › revision
Hope this helped
Hope this helpedALL THE BEST !!
Simplify the expression to a polynomial in standard form:
(
3
x
+
5
)
(
2
x
2
+
x
+
5
)
(3x+5)(2x
2
+x+5)
Answers
Answer:
9x
4
+120x
3
+550x
2
+1000x+100x2
2
+500x2+625+18x
3
x2+150x
2
x2+350×2+50x2x+60×2
2
+30x
2
x2+150×2+36x
2
x2
2
+18x
3
x2+90x
2
x2+60×2
2
+30x
2
x2+150×2
Step-by-step explanation:
(3x+5)(2x2+x+5)(3x+5)(2x2+x+5)
=(6×2+3x
2
+15x+10x2+5x+25)(3x+5)(2x2+x+5)=
=(3x
2
+20x+10x2+25+6×2)(3x+5)(2x2+x+5)=
=(9x
3
+15x
2
+60x
2
+100x+30×2+50x2+75x+125+6×2⋅3x+6×2⋅5)(2x2+x+5)=
=(9x
3
+15x
2
+60x
2
+100x+30×2+50x2+75x+125+18x
2
x2+6×2⋅5)(2x2+x+5)=
=(9x
3
+15x
2
+60x
2
+100x+30×2+50x2+75x+125+18x
2
x2+30×2)(2x2+x+5)=
=(9x
3
+75x
2
+175x+50x2+125+30×2+18x
2
x2+30×2)(2x2+x+5)=
=18x
3
x2+9x
4
+45x
3
+150x
2
x2+75x
3
+375x
2
+350×2+175x
2
+875x+100x2
2
+50x2x+250x2+250x2+125x+625+30×2⋅2x2+30×2x+30×2⋅5+18x
2
x2⋅2x2+18x
2
x2x+18x
2
x2⋅5+30×2⋅2x2+30×2x+30×2⋅5=
=18x
3
x2+9x
4
+45x
3
+150x
2
x2+75x
3
+375x
2
+350×2+175x
2
+875x+100x2
2
+50x2x+250x2+250x2+125x+625+60×2
2
+30×2x+30×2⋅5+18x
2
x2⋅2x2+18x
2
x2x+18x
2
x2⋅5+30×2⋅2x2+30×2x+30×2⋅5=
=18x
3
x2+9x
4
+45x
3
+150x
2
x2+75x
3
+375x
2
+350×2+175x
2
+875x+100x2
2
+50x2x+250x2+250x2+125x+625+60×2
2
+30x
2
x2+30×2⋅5+18x
2
x2⋅2x2+18x
2
x2x+18x
2
x2⋅5+30×2⋅2x2+30×2x+30×2⋅5=
=18x
3
x2+9x
4
+45x
3
+150x
2
x2+75x
3
+375x
2
+350×2+175x
2
+875x+100x2
2
+50x2x+250x2+250x2+125x+625+60×2
2
+30x
2
x2+150×2+18x
2
x2⋅2x2+18x
2
x2x+18x
2
x2⋅5+30×2⋅2x2+30×2x+30×2⋅5=
=18x
3
x2+9x
4
+45x
3
+150x
2
x2+75x
3
+375x
2
+350×2+175x
2
+875x+100x2
2
+50x2x+250x2+250x2+125x+625+60×2
2
+30x
2
x2+150×2+36x
2
x2
2
+18x
2
x2x+18x
2
x2⋅5+30×2⋅2x2+30×2x+30×2⋅5=
=18x
3
x2+9x
4
+45x
3
+150x
2
x2+75x
3
+375x
2
+350×2+175x
2
+875x+100x2
2
+50x2x+250x2+250x2+125x+625+60×2
2
+30x
2
x2+150×2+36x
2
x2
2
+18x
3
x2+18x
2
x2⋅5+30×2⋅2x2+30×2x+30×2⋅5=
=18x
3
x2+9x
4
+45x
3
+150x
2
x2+75x
3
+375x
2
+350×2+175x
2
+875x+100x2
2
+50x2x+250x2+250x2+125x+625+60×2
2
+30x
2
x2+150×2+36x
2
x2
2
+18x
3
x2+90x
2
x2+30×2⋅2x2+30×2x+30×2⋅5=
=18x
3
x2+9x
4
+45x
3
+150x
2
x2+75x
3
+375x
2
+350×2+175x
2
+875x+100x2
2
+50x2x+250x2+250x2+125x+625+60×2
2
+30x
2
x2+150×2+36x
2
x2
2
+18x
3
x2+90x
2
x2+60×2
2
+30×2x+30×2⋅5=
=18x
3
x2+9x
4
+45x
3
+150x
2
x2+75x
3
+375x
2
+350×2+175x
2
+875x+100x2
2
+50x2x+250x2+250x2+125x+625+60×2
2
+30x
2
x2+150×2+36x
2
x2
2
+18x
3
x2+90x
2
x2+60×2
2
+30x
2
x2+30×2⋅5=
=18x
3
x2+9x
4
+45x
3
+150x
2
x2+75x
3
+375x
2
+350×2+175x
2
+875x+100x2
2
+50x2x+250x2+250x2+125x+625+60×2
2
+30x
2
x2+150×2+36x
2
x2
2
+18x
3
x2+90x
2
x2+60×2
2
+30x
2
x2+150×2=
=9x
4
+120x
3
+550x
2
+1000x+100x2
2
+500x2+625+18x
3
x2+150x
2
x2+350×2+50x2x+60×2
2
+30x
2
x2+150×2+36x
2
x2
2
+18x
3
x2+90x
2
x2+60×2
2
+30x
2
x2+150×2
Please I would be grateful I need help
Answers
Answer:
A.. 3x
Step-by-step explanation:
Option A is the correct answer.
[tex] 9xy^2 - 6xy - 3x[/tex]
[tex]= 3x(3y^2 - 2y - 1)[/tex]
Sandy spent half of her allowance going to the movies. She washed the family car and camed 6
dollars. What is her weekly allowance if she ended with 11 dollars?
Answers
Answer:
12
Step-by-step explanation:
12 is what she ended with and spent half of the weekly allowance and got 6 for the car wash.
so 12 - 6 is 6 which is the money she has after the movies but before the car wash.
And before the movies she has 12$ a week
Is this expression equivalent to 1.5?
15.0 / 10
15.0 (divided by) 10
Answers
Answer:
Yes it is true
Step-by-step explanation:
15/10 equals 1.5
The ratio of dogs to cats at the pet store is 2:5. If there are 14 total pets, how many dogs and cats are there? *
Answers
Answer:
4 Dogs and 10 Cats
Step-by-step explanation:
2*2=4
5*2=10
4:10
Hope this helped!
A and T are variables.
The variable (48 - A) is directly proportional to the square of the variable T.
A is 28 when T = 2
(a) Find the formula for (48 - A) in terms of T.
please answer fasttt
Answers
Answer:
20 is the answer
Step-by-step explanation:
48-28=20
Triangle ABC is similar to Triangle XYZ.
Solve for x and y
Answers
Xz= 7
Hope this helps!!!
-19p ≤ 57
What could p be??
Answers
Answer:
81 units 2. Page 57. These items may be used by Louisiana educators for educational purposes. Algebra 1 Answer Key. ITEM 56. A committee at the ...
Step-by-step explanation:
Answer:
p≥−3
Step-by-step explanation:
12)
Data is collected on the amounts paid to several yard cutting services. The mean of the data is $65 per yard, and the median of the
data is $60. After comparing the mean to the median, which statement BEST describes the data?
A)
The data contains no outliers.
B)
No conclusion can be made about outliers.
The outliers of the data are extremely low rates.
D)
The outliers of the data are extremely high rates.
13)
25
28
30
32
41
45
Answers
Answer:
I believe it is B or C
Step-by-step explanation: sorry if wrong...