Please help!
Which of the following is equivalent to the radical expressions below when x>_2?
sqrt x-2* sqrt x+9
Answers
The equivalent expression for the multiplication of the rationals is given as follows:
C. [tex]\sqrt{x^2 + 7x - 18}[/tex]
How we multiply two rationals?To multiply two rationals, we keep the root and multiply the terms inside the root.
Hence, the equivalent expression is found as follows:
[tex]\sqrt{x - 2} \times \sqrt{x + 9} = \sqrt{(x - 2)(x + 9)} = \sqrt{x^2 + 7x - 18}[/tex]
Thus, option C is correct.
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Related Questions
10 POINTS! PLEASE HELP!! The illustration shows a compact disc tray that holds five CDs. The radius of each compact disc is 9 cm.
What is the total area occupied by all five discs?
Answers
We can see that there are 5 CDs, each of radius 9 cm
Area occupied by 1 disc:
Area of a circle = πr²
Area of disc = π(9)²
Area of disc = 3.14 * 81 = 254 cm²
Area occupied by 5 discs:
Area occupied by 5 discs = Area occupied by 1 disc * 5
Area occupied by 5 discs = 254 * 5
Area occupied by 5 discs = 1270 cm²
Rhonda manages wildlife samples for Ducks Unlimited. Two samples of duck populations at a migratory site are shown in the table below. Which statement about the samples is true? Duck Pond Samples Sample 1 Sample 2 Mallard 19 Mallard 38 Wood Duck 3 Wood Duck 1 Green Wing Teal 10 Green Wing Teal 1 American Widgeon 8 American Widgeon 0 Rhonda needs to continue taking samples of ducks until both samples have at least one of each type of duck. Rhonda should take a third sample and then use the two that are most representative since these samples vary quite a bit. Rhonda should use both of these samples as they are to make inferences about the average population of each type of duck in the pond. Both samples must be biased because there are more Mallards than any other type of duck recorded in the sample.
Answers
Answer:
c
Step-by-step explanation:
Rhonda should continue taking samples of ducks until both samples have at least one of each type of duck.
What is migratory site?A migratory site is a place where animals, especially birds, congregate during their seasonal migration.
Rhonda should keep collecting duck samples until both samples contain at least one of each type of duck.
Because neither Sample 1 nor Sample 2 contain at least one of each type of duck, Rhonda must collect additional samples until this criterion is met.
Rhonda would be incorrect to infer the average population of each type of duck in the pond based solely on the two existing samples because the samples are not representative of the entire population.
Thus, Rhonda should collect additional samples until both samples contain at least one of each type of duck, and then use all of the samples together to infer the population of each type of duck in the pond.
For more details regarding migration, visit:
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The measure of Angle A is 2x and Angle B is 60 when Angle A and Angles are supplementary angles. What is the value of x? A. 15 B. 60 C. 120 D. 30
Answers
Answer:
B) 60
Step-by-step explanation:
Given:
<A = 2x<B = 60<A and <B are supplementary angles (they add up to 180)Equation:
<A + <B = 180
2x + 60 = 180
2x = 180 - 60
2x = 120
x = 60
PLEASE HELP! I've been stuck on this question all day! ;w; NO links. Thanks in advance!
The volume of a rectangular prism is 473.2 cubic millimeters. If the length is 7 millimeters and the width is 10.4 millimeters, what is the height of the rectangular prism?
Answers
In a week, 13 hens laid 65 eggs. What is the unit rate for eggs per hen?
Answers
Answer:
5 eggs per hen
Step-by-step explanation:
Divide 65 and 13
Have a wonderful Day!
Help me plsssssssssss i don't have a lot of time hurry no links or files they are viruses help
Answers
Answer:
Flat charge = $8
Per mile charge = $1.75
Let miles covered be x
cost for the distance covered be y
y = 8 + 1.75x
Independent variable xDependent Variable yEquation y = 1.75x + 8Cost Table
x: 4 5 6 7 8 9 10
y: 15 16.75 18.50 20.25 22 23.75 25.50
PLEASE HELP FaSt i WILL GIVE BRAINLEiST
Answers
Answer:
4th answer
Step-by-step explanation:
Answer:
4its going to be the 4th answer
A cone has a volume of 5 cubic inches. What is the volume of a cylinder that the cone fits exactly inside of? (1 point)
15 in3
20 in3
25 in3
30 in3
Answers
Answer:
15 in³
Step-by-step explanation:
For cone:
V = (1/3)πr²h
For cylinder:
V = πr²h
The formulas are the same except for the 1/3 fraction in the formula for the volume of a cone. Since the formula for the cylinder does not have the fraction 1/3, if a a cylinder and a cone have the same radius and height, then volume of the cylinder is 3 times greater than the volume of the cone.
5 cu in. * 3 = 15 in.³
Answer: 15 in.³
Name the transformation if the new coordinates are (- 1, 1), (- 5, 1), (- 1, 3)
Answers
Answer:
Reflection off the y axis
Step-by-step explanation:
help ill give brainiest
Answers
Answer:
You can find 0.5% of a number by multiplying the number by
Step-by-step explanation:
Palaye Royale's lead singer is 26 years of age and from canada, also 6'1'' true or false
Answers
Answer:
true
vgStep-by-step explanation:
In the diagram, Line AC is a diameter of the circle with center O. If mACB = 50°, what is mBAC?
A. 50°
B. 40°
C. 80°
D. 100°
Answers
Which equation is equivalent to 2^3^x= 10?
Answers
Answer:
Option 2, log₂10 = 3x
Hope this helps!
Answer:
3rd
Step-by-step explanation:
the question is in the picture attached. please help!!!
Answers
Answer:
x = 6
Step-by-step explanation:
The median is half the sum of the parallel bases , then
[tex]\frac{2x+4+10x-50}{2}[/tex] = 13 ( multiply both sides by 2 to clear the fraction )
12x - 46 = 26 ( add 46 to both sides )
12x = 72 ( divide both sides by 12 )
x = 6
hii! please help asap. i’ll give brainliest
Answers
Answer:
B i think
Step-by-step explanation:
Misty purchased two pairs of jeans that were originally $24 each, but were on sale for _1 3 off of the total price. How much did she save?
Answers
Answer:
the amount saved by her for two jeans is $16
Step-by-step explanation:
Given that
Misty purchased two pairs of jeans that cost $24 each
But they were on sale for one third of the total price
We need to find out the amount save
So, the amount saved is
= $24 × 1 ÷ 3 ×2 jeans
= $16
Hence, the amount saved by her for two jeans is $16
The radius of circle A is 6 ft . The radius of circle b is 5 ft greater than the radius of circle A. The radius of circle C is 3ft greater than the radius of circle b . The radius of circle d is 1 ft less than the radius of circle c. What is the area of each circle? How many times greater than the area of circle A is the area of circle c?
Answers
Part 1
Circle A: 6
Circle B: 5
Circle C: 3+ CB
Circle D: 1-R of CC
Circle C:
5+3=8
Radius: 8
Circle D
8-1=7
Radius: 7
Circle C:8
Circle D:7
Part 2
Formula: PiR^2
Circle A:
6*6=36
36*3.14=113.04
Circle C:
8*8=64
64*3.14=200.96
200.96-113.05=87.91
87.91
When eleven is added to the product of a number, x and three, the result
is equal to the number that is nine less than five times the same number, x.
What is the value of x
Help if you can
Answers
Answer:
x=10
the value of x is 10, as can be seen below.
Step-by-step explanation:
Step 1- write out equation... (then solve)
3x+11=5x-9 (Get both x on the same side)
-3x -3x
11=2x-9
+9 +9
20=2x
/2 /2
20/2=10
10=x
ANSWER:
x=10
:)
good luck!!
i neeeeed helpppppppppppp
Answers
Answer:
x = -1
Step-by-step explanation:
x=-1
Hope this Helped!
What is the place value of the 9 in 67.49?
Answers
Gerald has lots of land that are 12x square miles. He decides to purchase 4x more lots of land of the same size.(marking brainlist)
Answers
Answer:
48x square miles
Step-by-step explanation:
12x4 48
The total area that he has will be 48x² miles square.
What is Algebra?The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
It is also known as the product. If the object n is given to m times then we just simply multiply them.
Gerald has lots of lands that are 12x square miles.
He decides to purchase 4x more lots of land of the same size.
Then the total land that he has will be given by the multiplication of the 12x and 4x.
⇒ 12x · 4x
⇒ 48x²
Then the total area that he has will be 48x² miles square.
More about the Algebra link is given below.
https://brainly.com/question/953809
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how many nickels are in a quarter
Answers
Answer:
5 nickles in a quator.
Step-by-step explanation:
Answer:
5 nickels
Step-by-step explanation:
The value of a nickel is 5 cents and the value of a quarter is 25 cents.
The equation we can use for this is 5 times x = 25
From here, you can divide 25 By 5 and get 5 as your final answer.
Hope this helps, have a good day!
Find the slope of the line that goes through the points (-3, 1) and (-17, 2).
Answers
3(z+2)-2(z+2)+z if z=5
Answers
Z=5
3(5+2)-2(5+2)+5
3(7)-2(7)+5
21 - 14 + 5
7 + 5
=12
Anya’s scores from her math quizzes are shown here.16, 20, 16, 14, 19 What is the mean absolute deviation (MAD) of the scores?
i need an answer pls-
Answers
Answer:
The mean absolut deviation (MAD) of the scores is 2.
La mitad de un número más tres cuartos del número es 3 menos que cuatro tercios del número. Encuentre el número.
Answers
Ms. Johnson has three times as many
flowers as Ms. Harris. Ms. Harris has
12 flowers. How many flowers does
Ms. Johnson have?
Answers
Answer:
36
Step-by-step explanation:
12 x 3 =36
hope this helped :)
*30 POINTS* HELP FOR BRAINLIEST
Answers
Answer:
21
Step-by-step explanation:
f(x) =x^2 - 6x + 21
f(xl =0
Answer:
substitute 0 for x
f(0) = 0^2 - 6(0) + 21
0. = 0 - 0 + 21
0. = 21
I need help pleasee
Answers
Answer:
a) JK is a secant line
b) IE is a chord
c) GH is a tangent line
Step-by-step explanation:
Can someone help me out with this my grade are bad
Answers
Answer:
2 2/5
Step-by-step explanation: