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3 years ago

Which of the following is equal to the expression below?

Mathematics

2 answers:

just olya [345]3 years ago

7 0

$\frac{\sqrt{9}}{\sqrt{81}}=\frac{3}{9}=\boxed{\frac{1}{3}}$

The answers are A and B.

Hope this helps.

r3t40

PilotLPTM [1.2K]3 years ago

6 0

Answer is A and B

Evaluate the Square root of 9 and 81

9 is the perfect square of 3, so the numerator is 3

81 is the perfect square of 9, so the denominator is 9.

So you have 3/9.

You can simplify the fraction to make 3/9 into 1/3

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At 9:00 pm bob leaves his home and starts walking to the bus stop at a constant speed of 9.3 feet per second. bob's house is 432

klio [65]

a. define variables for the quantities that are changing (be specific).
We define variables:
t = time in second
d = distance traveled
The variables that are changing are t and d.
As the time increases, the distance decreases.

b. what does it mean to say bob walks at a constant speed of 9.3 feet per second?
It means that for every second that passes, Bob walks 9.3 feet.

c. consider the formula d = 4320 - 9.3t i. what does t represent? ii. what does 9.3t represent? iii. what does d represent?
For this case we have:
t = represents the time in seconds
9.3t = represents the distance traveled by Bob
d = represents the distance Bob must travel to get to the bus stop.

5 0

2 years ago

Which term describes the variable y in the expression yn? A.Product B.Factor C.Base D.Exponent

grigory [225]

If the expression is: yⁿ
then y is the Base.

If the expression is: yn
then y is the product.

5 0

3 years ago

Clare is paid 90$ for 5 hours of work. At this rate, how many seconds dose it take for her to earn 25 cents?

mrs_skeptik [129]

Answer:

84 seconds

Step-by-step explanation:

Because if you divide all of that you would get that answer

3 0

2 years ago

Need Help Please!! 5/8 ÷ 2/5 = gotta reduce to lowest terms

viktelen [127]

Its lowest terms are 1/16

8 0

2 years ago

Solve the simultaneous equations 4x+3y=1 4x^2+3xy+y^2=2

Fantom [35]

Notice that the second equation,

4x ² + 3xy + y ² = 2

can be written as

x (4x + 3y) + y ² = 2

and the first equation says 4x + 3y = 1, so this reduces to

x + y ² = 2

Solve the first equation for x :

4x + 3y = 1

4x = 1 - 3y

x = (1 - 3y)/4

Substitute this into the reduced second equation to get a quadratic equation in y, which happens to be easily factorized and solved:

(1 - 3y)/4 + y ² = 2

1 - 3y + 4y ² = 8

4y ² - 3y - 7 = 0

(4y - 7) (y + 1) = 0

4y - 7 = 0 or y + 1 = 0

y = 7/4 or y = -1

Solve for x :

x = (1 - 3 (7/4))/4 or x = (1 - 3 (-1))/4

x = -17/16 or x = 1

So the two solutions are (x, y) = (-17/16, 7/4) and (x, y) = (1, -1).

8 0

2 years ago