Which choice is equivalent to the product below for acceptable values of X?
sqrt(x+2)*sqrt(x-2)
Answers
Answer:
√x^2-4
Step-by-step explanation:
Given the expression
√(x+2) * √(x-2)
= √(x+2)(x-2)
Expand
= √x(x)-2x+2x-2(2)
= √x^2-4
Hence the product of the expression will give √x^2-4
For x to be acceptable x^2 - 4 = 0
x^2 = 4
x = ±√4
x = ±2
Acceptable value of x are values that are greater than or equal to ±2
Answer:
√x^2-4
its also in this imagine below
Related Questions
If a simple machine requires an effort of 20 newtons to lift a load of 100 newtons, its
mechanical advantage is:
a. 5
b. 5N
c. 5MA
Answers
Answer:
A. 5
Step-by-step explanation:
Hope this helps!
Please help will give Brain
Answers
Answer:
5
Step-by-step explanation:
3(x+3)=4(4+2)
3x+9=24
3x=15
x=5
Hope this helps :)
A dune buggy company rents dune buggies at the beach. They charge an initial fee of $30 plus
$10 for each hour the buggy is rented. Let x represent the number of hours and y represent the
total cost of the rental.
b. What is the slope-intercept equation of the line that fits this information?
Answers
Answer: y = 10x + 30 is the correct answer
please help
easy points
Answers
Answer:
its the fortnite man can i get brainlest plsss
Step-by-step explanation:
How would "the product of 2 and a number plus 13" be written an
algebraic expression? *
Answers
X= a number
2(a number) + 13
Thank you!
Answer:
2x+13
Step-by-step explanation:
A random number will be x.
The product means multiple.
Hope this helps =]
Estimate the surface area of the rectangular prism.
A) 28cm
B) 32cm
C) 64cm
Answers
Answer:
it a
Step-by-step explanation:
Karl used his credit card to buy a 90-inch HD flat-screen TV for $2,600. The credit card company charges 28% compound interest per year. If Karl made no payments for 2 years, how much would he owe the credit card company?
thx in advance
Answers
Answer:
6000 is the answer lol I know it is cause I am in math
please help i will mark branliest
Answers
Answer:
The correct answer is D
Step-by-step explanation:
40% of 13 is 5.2 and they only raised 4 punishment that are 96 inches
Indique la propuesta correcta con respecto a los instrumentos de medida: a) El Voltímetro A.C. Mide valor medio b) El Voltímetro D.C. Mide valor máximo c) El Amperímetro A.C. Mide valor medio d) El Amperímetro A.C. Mide valor eficaz c) El Amperímetro D.C. Se conecta en paralelo
Answers
Answer:
Las propuestas correctas son;
a) Voltímetro de CA Mide el valor medio
La magnitud del voltaje de corriente alterna varía periódicamente con el tiempo, dentro de un rango dado
El voltímetro de CA proporciona la lectura y, por lo tanto, mide el valor medio del voltaje, el voltaje pico o el R.M.S. valor de la tensión
b) El voltímetro de CC mide el valor máximo
Los valores de voltaje de un circuito de corriente de CC se fijan con el tiempo y, por lo tanto, el voltímetro de CC mide los voltajes máximos en el circuito.
c) El amperímetro de CA mide el valor medio
Similar a la medición de voltaje de CA, el amperímetro de CA mide el valor de corriente medio
d) El A.C. mide el valor efectivo
La raíz cuadrada media o R.M.S. valor es el valor medido por un R.M.S. Medidor de A.C.
e) El D.C. se conecta en paralelo
Todos los voltímetros se colocan en paralelo con el circuito desde el que se va a medir el voltaje.
Sin embargo, un amperímetro de CC está conectado en serie
Step-by-step explanation:
Are the following two expressions equivalent?
Explain how you know...
3(4-x)
6(x+2)-7x
Answers
Answer:
no, because the first=12-x
and the second=-1x+2
Step-by-step explanation:
Answer:
No, they are not equivalent.
Step-by-step explanation:
First, we simplify the two expressions.
3(4 - x) = 12 - 3x We multiply everything inside the bracket by 3.
6(x + 2) - 7x = 6x + 12 - 7x = 12 - x Using BODMAS/BIDMAS, we first multiply everything in the brackets by 6 and then simplify.
If we compare 12 - 3x to 12 - x, we can clearly notice that they aren't equivalent. If they were to be equivalent, they would have to be exactly the same values as each other. The 12 is common in both expressions, but the -3x and -x differ, therefore the following two expressions aren't equivalent.
I hope this helps!! ^-^
A new truck that sells for $29,000 depreciates 12% each year.
Write a function that models the value of the truck.
Answers
Answer and Step-by-step explanation:
f(x) = [tex]29,000(0.88)^{x}[/tex]
Where x is time in years and f(x) is the amount of money the truck is worth each year.
We get 0.88 by subtracting 0.12 (aka 12%) from 1.00.
#teamtrees #PAW (Plant And Water)
calculate the diameter of the circle
Answers
Answer:
2.64cm
Step-by-step explanation:
A = π r^2
5.5 = π r^2
1.75 = r^2
r = 1.32
Diameter is then 2(1.32) = 2.64
Answer:
2.65 cm to the nearest hundredth
Step-by-step explanation:
A = πr^2 = 5.5
r^2 = 5.5/ π = 1.5707
r = 1.3231
Diameter = 2 * r
= 2.6462.
Find the area of AABC with A = (1,3), B = (5, 7), and
C = (6,3).
Answers
Answer:
A=L×B
A=1×3
A=3cm²
B=L×B
B=5×7
B=35cm²
C=L×B
C=6×3
C=18cm²
Carly went for a walk and jog
• She started walking.
• After a few minutes, Carly began jogging at a faster speed than she was walking
• Carly got tired then slowed down to a slower speed than she was jogging
which graph best represents the distance Carly went?
Answers
Answer:
I believe D
Step-by-step explanation:
The reason is she starts off slowly but then keeps on gaining up and up.
Factor completely. 492 – 9 =?
Answers
Answer:
483
Step-by-step explanation:
Answer:
483
Step-by-step explanation:
subtract 492 by 9 and it is =483
(answer ASAP! thanks.) "As part of a math project, Joel recorded the types of vehicles passing an intersection in one hour. His results are shown on the table below. Explain how you can determine the percent of each type of vehicle. Then calculate the percent of vehicles that are not trucks."
Car: 73
Small truck: 16
Large truck:6
Motorcycle: 2
Bicycle: 3
Answers
Step-by-step explanation:
There is a total amount of vehicle of 100
which is good because now you can say 73% is cars 16% is small trucks 6% is large trucks and 2% motorcycle and 3% bicycle. Adding the trucks (small 16, large 6) gives us 24% so you can do 100% - 24% and get 74%. Thanks and goodbye!
Does 135, 45, 15,5,represent a
geometric sequence?
Answers
Answer:
yes
Step-by-step explanation:
Each time it is divided by three!
Derek decorates more cookies. He plots the point (5,10) on the coordinate plane. what is the meaning of point (5, 10)?
A. Derek decorates 5 cookies every 10 mins
B. Derek decorates 10 cookies every 5 mins
(Note that he decorates 2 cookies every minute.)
Answer needed ASAP
Answers
Answer:
A. don't know if this helps but with plotting but (x, y) the x always comes first
Answer:
A
Step-by-step explanation:
A. Derek decorates 5 cookies every 10 mins
what is 7.266435 986 159 17 to the nearest integer?
Answers
Answer:
7
Step-by-step explanation:
Rounding rules. Anything below 5 will round down
Which of the following correctly completes the square for: x^2+2x=48
A. (x+2)^2=52
B. (x+1)^2=49
C. (x+2)^2=47
D. (X-1)^2=26
Answers
Answer:
(x+1)²= 49, the answer is B
Step-by-step explanation:
x² + 2x = 48
x² + 2x + (2/2)² - (2/2)²= 48 --[what we are trying to do is to complete a square by adding (2/2)² - (2/2)²]
(x+1)²= 49, the answer is B
Answer:
hey I'm pretty sure it's B. (x+2)²=49
Step-by-step explanation:
x²+2x+(2\2)²=48 + (2\2)²
(x+1)²=49
2 over 2 by the power of 2 = 1
what is the Variable in
3x + 7
Answers
the variable is x, that's all
Answer:
x is the variable
3 is the coefficient, 7 is the constant, and + is the operator.
Here's how to identify other terms:
Four points are labeled on the number line.
Which point best represents 1/2??
A. Point K
B. Point L
C. Point M
D.Point N
Answers
Answer:
point M represent s a third
6.6× 0.05= 0.33=1/3
Type the slope of the line PERPENDICULAR to y = 6x -3 *
Answers
Answer:
The slope of a line perpendicular is -1/6
Step-by-step explanation:
Perpendicular lines are opposite reciprocals so you would flip 6/1 to 1/6 and negate it. The answer is -1/6.
Solve please I’m trying to find out if it’s 1/20 or 5/4
Answers
Answer:
I’m pretty sure it’s 5/4
Step-by-step explanation:
what is the equivalent expression of 8x+7y+5x+4y+2y
Answers
Answer:
13x+13y
Step-by-step explanation:
(combine like terms)
8x+5x=13x
7y+4y+2y=13y
hope this helped you!
Based on the data, how many of 650 ice cream eaters would be expected to prefer vanilla or cookie dough ice cream flavor Number of people vanilla 71 strawberry 22 cookie dough 27 chocolate 83
Answers
Answer: 305 people
Step-by-step explanation:
The total number of people sampled is:
= 71 + 22 + 27 + 83
= 209
Out of this 209, the number of people who prefer Vanilla and cookie dough ice cream is:
= 71 + 27
= 98 people
In a sample of 209 people, 98 people would prefer either vanilla or cookie dough. In 650 people, that number would therefore be:
= 98/ 209 * 650
= 305 people
2x and 3x are like terms
Answers
Ren built a birdhouse with a volume of 224 in.3 Find the height of the birdhouse.
Answers
Complete question:
Ren built a birdhouse with a volume of 224 in³ Find the height of the birdhouse. A square pyramid. The square base has side lengths of 8 inches and the height is unknown.
Answer:
the height of the birdhouse is 10.5 in.
Step-by-step explanation:
Given;
volume of the square pyramid, V = 224 in³
length of a side of the square base, a = 8 in
The volume of square pyramid is calculated as;
[tex]V = \frac{a^2h}{3} \\\\where;\\h \ is \ height \ of \ the \ birdhouse \ (Pyramid)\\\\a^2h = 3V\\\\h = \frac{3V}{a^2} \\\\h = \frac{3 \times 224}{8^2} \\\\h = 10.5 \ in[/tex]
Therefore, the height of the birdhouse is 10.5 in.
Answer:
64 and 10 1/2
Step-by-step explanation:
Can someone seriously help me
Answers
Answer:
6 inches
Step-by-step explanation:
The mode is the most frequently occurring number.
The mode of Martha's Fish is 21.
The mode of Jamie's Fish is 15.
21 - 15 = 6
The mode of Martha's fish is 6 inches longer than the mode of Jamie's fish.
The point (-3, 2) is on the line given by which equation below?
HELPPP ME PLSSSS I NEED THIS NOWW
Answers
In this case:
2=-3+5
2=2
