Perform the indicated operation 2 3/8 x 5 3/4

Answers

Answer 1

Answer: Hello!

Change each mixed number to an improper fraction to make it easier

2 3/8 = 19/8

5 3/4 = 23/4

Now, multiply

19/8 × 23/4 = 437/32 = 13 21/32

Answer ⇒ 13 21/32

Answer 2

Answer: 2 $(3)/(8)$ = $(2(8)+3)/(8) = (19)/(8)$
5 $(3)/(4) = (5(4)+3)/(4) = (23)/(4)$

$(19)/(8)$ ÷ $(23)/(4)$
= $(19)/(8)$ x $(4)/(23)$
= $(19(4))/(8(23))$
= $(19)/(2(23))$
= $(19)/(46)$

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The table below shows the outputs y for different inputs x:Input
(x) 1 1 3 3
Output
(y) 4 2 12 6

Part A: Does the table represent y as a function of x? Justify your answer. (5 points)

Part B: The total cost f(x), in dollars, for renting a paddleboat for x hours is shown below:

f(x) = 20 + 10x

What is the value of f(120), and what does f(120) represent? (5 points

Answers

Answer with explanation:

Part A:

A relation is said to be a function where each input has only a single output.

We usually take the input variable as 'x' and the output variable as 'y'.

In the given table, we can see that 1 is the input value corresponding to 4 and 2 both.

i.e. one input value corresponds to two different output values that contradicts the definition of the function.

Thus the given table doesn't represent any function.

Part B: Given : The total cost f(x), in dollars, for renting a paddle-boat for x hours is shown below:

$f(x) = 20 + 10x$

At x= 120 , $f(120) = 20 + 10(120)=20+1200=1220$

It represents that the total cost for renting a paddle-boat for 120 hours is $1220.

Part A)
The table doesn't represent y as a function of x.
Why? One reason is that 1 or 3 is the first element in more than one ordered pair.
Part B)
f(x) = 10x + 20
f(120)= 10*120 + 20 = 1200 + 20 = 1220
f(120) represents cost of boating for 120 hours.

Which 3 Comparisons are correctA 0.4 meter > 0.04
B 0.04 Meter >0.3
C 0.3 Meter < 0.3
D 0.5 Meter > 0.65
E 0.65 Meter >0.61
F 0.65 Meter <0.04

Answers

A and E are the only ones I see which are correct, did you perhaps type it in incorrectly? I hope this helps, have a nice day! =)

If m varies directly with x 2 , and m = 10 when x = −4, find the value of m when x = 3

Answers

If it is directly proportional, then:

m = kx
10 = k x -4
k = -2.5

m = 3 x -2.5
m= 7.5

Hope I helped!

What shape is a parallelogram

Answers

A parallelogram is a 4-sided figure that has two sets of parallel lines. Here is what a common parallelogram looks like:

A tree is 4 meters tall. About how tall is the tree in feet? (1 meter is approximately 39 inches.)

Answers

First convert the meters to inches.
4x39=156 in
1 foot is 12 inches so now divide the inches by 12.
156/12=13 feet
The tree is approx. 13 feet.

Your answer is 13.0 ft. On the quiz, C.

Which of the following shows 7 + (x + 4y) rewritten using the Associative Property of Addition? (3 points) Select one: a. 7 + x + 4y b. 7x + (4 + y) c. (7 + x) + 4y d. x + (7 + 4y)

Answers

i think it would be d.

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