HELP WILL GIVE BRAINLESS Which choice is equivalent to the fraction below? (Hint: Rationalize the
denominator and simplify.)
2
√x + √x+ 2
2
A. VX + 1x + 2
B. FxVx+ 2
C. x + 2 - 3
Answers
Answer:
C. [tex] \sqrt{x + 2} - \sqrt{x}[/tex]
Step-by-step explanation:
[tex] \frac{2}{ \sqrt{x} + \sqrt{x + 2} } \\ \\ = \frac{2}{ (\sqrt{x} + \sqrt{x + 2}) } \times \frac{(\sqrt{x} - \sqrt{x + 2})}{(\sqrt{x} - \sqrt{x + 2})} \\ \\ = \frac{2( \sqrt{x} - \sqrt{x + 2}) }{ ({ \sqrt{x} )}^{2} - {( \sqrt{x + 2} )}^{2} } \\ \\ = \frac{2( \sqrt{x} - \sqrt{x + 2}) }{ x - {( x + 2)} } \\ \\ = \frac{2( \sqrt{x} - \sqrt{x + 2}) }{ x - x - 2 } \\ \\ = \frac{2( \sqrt{x} - \sqrt{x + 2}) }{ - 2 } \\ \\ = - ( \sqrt{x} - \sqrt{x + 2}) \\ \\ \frac{2}{ \sqrt{x} + \sqrt{x + 2} } = \purple{ \bold{\sqrt{x + 2} - \sqrt{x} }}[/tex]
Related Questions
Michelle is rolling two six-sided dice, numbered one through six. What is the probability that the sum of her rolls is 8?
Answers
∴ P(A)=0.083
Step-by-step explanation:
Given that Michelle is rolling two six-sided dice, numbered one through six.
To find the probability that the sum of her rolls is 4:
∴ n(s)=36
Let P(A) be the probability that the sum of her rolls is 4
Then the possible rolls with sums of 4 can be written as
n(A)=3
The probability that the sum of her rolls is 4 is given by
=0.083
∴ P(A)=0.083
∴ the probability that the sum of Michelle's rolls is 4 is 0.083
-please give brainliest if correct!
On the map below, 1⁄4 inch represents one
mile. Candler, Canton, and Oteen are three
cities on the map.
If Candler and Oteen are 3 1⁄2 inches apart
on the map, what is the actual distance
between Candler and Oteen in miles?
Answers
Step-by-step explanation:
71, 80, 82, 78, 80, 91, 107, 121, 125, 131, and 142. The variance of this data set is?
Answers
Answer:
636.41818
Step-by-step explanation:
^2=∑=1(−⎯⎯⎯)2−1
^2=−1
^2=6364.181811−1
^2=6364.181810
^2=636.41818
I hope this helps :)
44⁷×55+76÷79+80
i am can't solve this question
Answers
Step-by-step explanation:
Cumulative frequency can also defined as the sum of all previous frequencies up to the current point.
So, 48+24=72
So, the missing cumulative frequency is . 72
Answer:
the missing cumulative frequency is . 72
Step-by-step explanation:
{(27x-6y=30 9x-2y=10)
Answers
Answer:
Y= 9x/2 -5
Step-by-step explanation:
is that what you needed help on?
can someone help me with this problem?
Answers
WHY:
Each number on the left side is multiplied by 3. There are 3 blue marbles in each bag. 7 bags will have 21 blue marbles. 7*3=21
MARK ME BRAINLIEST PLEASE
20 mi
12 mi
b
What is the length of the missing leg?
Answers
Answer:
13
Step-by-step explanation:
thats my answer byusing calculato
TRUE or FALSE? The sum \sqrt{16}+\sqrt{9} is a rational number.
Answers
True
Explanation:
Sqrt[16] + sqrt[9]
4 + 3
7
A hair salon uses 4 bottles of shampoo for every 3 bottles of conditioner.
The coordinate plane shows a graph of equivalent ratios.
Use the graph to find the number of bottles of conditioner that are used when 16 bottles of shampoo are used.
Answers
A 3 bottles of conditioner
B 6 bottles of conditioner
C 12 bottles of conditioner
D 20 bottles of conditioner
Answers
Answer:
I honestly think it is C.
Step-by-step explanation:
Since "4 bottles of shampoo for every 3 bottles of conditioner" is (4,3), I think the 16 is (16,12) on the graph. It might be worng, might be right. Just go for C.
How many solutions does this equation have?
–2 + 2s = –3s + 8
Answers
Answer:
Step-by-step explanation:
-2 + 2s = - 3s + 8
-2 - 8 = - 3s - 2s
-10 = - 5s
-10/-5 = s
2 = s
Answer:
2
Step-by-step explanation:
-2+2s=-3s+8
-2+2s-(-3s)=8
-2+2s+3s=8
-2+5s=8
5s=8-(-2)
5s=8+2
5s=10
s=10/5
s=2
Find the Highest Common Factor of : 27, 36, and 54.
Answers
Answer: 9
Step-by-step explanation:
The factors of 27 are: 1, 3, 9, 27
The factors of 36 are: 1, 2, 3, 4, 6, 9, 12, 18, 36
The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54
Then the greatest common factor is 9.
Hope this helped ! :)
Joe ate as much pieces of halloween candy as Ed. Together they ate 48 pieces!
Answers
Answer:
they both ate 24 pieces!
Step-by-step explanation:
if joe and ed ate the same amount of candy, 48÷2= 24
24+24=48
Find the length of leg " a" if leg "b" = 12 and the hypotenuse "c" is 13
Answers
a^2 + (12)^2 = (13)^2
a^2 + 144 = 169
a^2 = 169 - 144
a^2 = 25
Sqrt (a^2) = Sqrt(25)
a = 5
Please mark brainliest if this helps
HELP PLEASE!!!!! 13 POINTS!!! WILL GIVE BRAINLIEST!!!
Which exponential expression is equivalent to the one below? (7x2)^5
Answers
Answer:
The 2nd option is the correct answer - 7⁶ . 2⁶
B. 7^6*2^6
Each year, Malcolm earns 120 hours of vacation time at his job. There are 52 weeks in a year.
What is the approximate number of hours of vacation time that Malcolm earns each week?
Answers
Answer:
2.3 hours per week
Step-by-step explanation:
Find X ( please explain how)
Answers
Answer:
90
Step-by-step explanation:
(5-2)x180= 540 formula to find the sum of interior angles of a polygon
180-70 = 110 lower right angle
180 -60 = 130 lower left angle
110+130+120+90= 450 all known angles sum
540-450 = 90 total minus known gives you x
What is the area of 30/7 and 1/3
Answers
Answer:
The answer is 7/4 = 1 3/4 = 1.75 = seven quarters (or one and three quarters) ... numbers, be sure to leave a single space between the whole and fraction part.
Step-by-step explanation:
If the car spends no time going 35 miles per hour how long would the trip take?
Answers
Answer:
can you specify how fast the car is going? if the car goes 35 miles per hour and the trip is 3 hours its 105 miles in total for your trip. I hope this helps.
The total time that the car will take to cover the trip would be {x}/35 hours.
What is distance?Distance in kinematics is defined as the product of speed and time.
Mathematically, we can write distance covered as -
distance = speed x time
Given to find the time duration of trip if the car is travelling at 35 miles per hour.
Assume that the total distance that has to be travelled by the car is {x}
miles. From the formula of distance covered, we can write that -
distance = speed x time
time = distance/speed
time = x/35
Therefore, the total time that the car will take to cover the trip would be {x}/35 hours.
To solve more questions on distance covered, visit the link-
https://brainly.com/question/20271103
#SPJ2
If f(x) = 4x - 6, what is f(6)?
A. 4
B. 32
C. 3
D. 18
Answers
PLEASE IM IN CLASS RIGHT NOWWWW
Answers
Answer:
102
Step-by-step explanation:
Round 74,606.4 to the nearest whole number
Answers
Answer:
75000
Step-by-step explanation:
75000 is the answer
I WILL GIVE BRAINIEST!! TO THE CORRECT ANSWER TO FILL IN THIS BOX I ONLY GET THE OPTION WITH A COUPLE OF ANSWERS!
Answers
Answer:
Step-by-step explanation:
The third one is
(10^3)^4 and equals 10^12
the 4th one is (10*10*10*10)(10*10*10*10) or 10^8
the last one is (10*10*10*10*10*10*10*10) (10*10*10*10*10*10*10*10) (10*10*10*10*10*10*10*10) (10*10*10*10*10*10*10*10) (10*10*10*10*10*10*10*10) (10*10*10*10*10*10*10*10) (10*10*10*10*10*10*10*10) (10*10*10*10*10*10*10*10) (10*10*10*10*10*10*10*10) (10*10*10*10*10*10*10*10) (10*10*10*10*10*10*10*10)
or 10^88
6. A study recorded the number of baskets scored each game by four basketball players. The MAD from this data is shown below. Which basketball player is the most predictable regarding his/her number of baskets per game?
MAD. Basketball Player Donelle. 1.4
Mila. 3.8
Aracely. 2.5
Corey. 1.2
A. Donelle
B. Mila
C. Aracely
D. Corey
Answers
Answer:
D. Corey!
Step-by-step explanation:
I hope this helps! Have a great rest of your day!
Can someone please help me asap ill mark brainlist + extra points!!!!!
Answers
8. Radius=8 diameter=16 area=8^2pie
Circumference=16
9. Radius=10 diameter=20 area=10^2pie
Circumference=20
Step-by-step explanation:
1. radius=d/2= 30/2= 15yds
diameter= 30yds
area=πr²= 22/7*(15)²
707.14yds²
circumference= 2πr=2*22/7*15
94.29yds
2.radius=8in
diameter= 2r =2(8)=16in
area=πr²= 22/7*(8)²
201.14in²
circumference= 2πr=2*22/7*13
50.29in
3.radius=d/2 =20/2=10ft
diameter= 20ft
area=πr²= 22/7*(10)²
314.29ft²
circumference= 2πr=2*22/7*10
62.86ft
HELP ME!! I WILL MARK BRAINLIEST!!
Ez brainliest
Answers
Answer:
4) A) cuttings
5) B) pollinated
9) C) heredity
Step-by-step explanation:
Answer:
1) A.
2) B.
3) C.
I hope this helps.
Please mark me the Brainliest!
Which rule is correct for translation 2 units right and 6 units down
Answers
Answer:
(x + 2, y - 6)
Step-by-step explanation:
When you go right or up it is in the positive.
When you go left or down it is in the negatives.
Answer:
[see below]
Step-by-step explanation:
Two units to the right is adding 2 together to the x value.
6 units down is subtracting 6 from the y-value.
The rule should be:
[tex](x,y)\rightarrow(x+2,y-6)[/tex]
Hope this helps.
Which of the following inequalities is equivalent to – 9 <4(x - 3)?
Answers
Answer:
x>3/4
Step-by-step explanation:
Name each polynomial based on its degree and number of terms.
-2xy^2
Answers
Answer:
Degree: 3
Number of terms: 1
Step-by-step explanation:
The exponent on x is 1. The exponent on y is 2.
1 + 2 = 3
Degree: 3
Number of terms: 1
Daniel says that more than half the students spent 2 1 2 hours or more on homework. Liz says more than half the students spent less than 2 1 2 hours on homework. Who is correct? Explain.
Answers
Answer:
Liz is correct
Step-by-step explanation:
Given
See attachment for complete question
Required
Who is correct? Daniel or Liz
From the attached data, we have:
[tex]Time: 1\frac{3}{4},\ 2\frac{1}{2},\ 2,\ 2\frac{3}{4},\ 1,\ 1\frac{3}{4},\ 1\frac{1}{4},\ 3,3\frac{1}{4},\ 3\frac{3}{4},\ 2,\ 2[/tex]
The total number of students is:
[tex]n = 12[/tex]
The data that represents [tex]2\frac{1}{2}[/tex] or more is:
[tex]Time: 2\frac{1}{2},\ 2\frac{3}{4},\ 3,3\frac{1}{4},\ 3\frac{3}{4}[/tex]
The frequency of this is 5
The frequency that represents [tex]2\frac{1}{2}[/tex] or less will be 7
This means that less than half spend [tex]2\frac{1}{2}[/tex] or more
and more than half spend [tex]2\frac{1}{2}[/tex] or more
Hence, Daniel is incorrect. Liz is correct
What is the surface area of the rectangle below?
Answers
Step-by-step explanation:
First, we must take into account that there will be 3 pairs of sides that are the same. Starting at the front, we have 9 * 12. Since the rectangular prism is measured in units squared, this side is 108 units squared. The opposite side is the same. Our current total is 216 units. The side is 15 * 9. This is 135 units, multiplied by 2 since it has the other side, to get 270 units. Our current total is 486 units, so it already can't be A. The top and bottom sides are 15 * 12 units, giving us 180 on each, 360 in total. 360 plus 486 = 846 units squared.