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guajiro [1.7K]
4 years ago
11

Please help me with this assignment! PLEASE AND THANK YOU!!!!

Mathematics
1 answer:
pantera1 [17]4 years ago
6 0

This isn't math but okay. The independent variable is what you CHANGE, the dependent variable is what you MEASURE. (you can change/tweak any of my answers as you please)

1. DV = amount of noise in the room

IV = the number of speakers


2. DV = the rate of cooling of a glass of water

IV = amount of ice


3. DV = amount of sunlight absorbed

IV = color of clothing


4. DV = the force needed to lift the block

IV = weight of the block


5. DV = amount of space needed to store the object

IV = volume of an object


6. DV = time needed to cook something

IV = temperature of the grill


7. DV = sweetness of the baked cookies

IV = amount of sugar in the mix


8. DV = amount of force needed to break the rope

IV = thickness of rope


9. DV = volume of water traveling down the river

IV = amount of rain


10. DV = softness of the ground

IV =  amount of rain


11. DV = amount of space needed

IV = temperature of a substance

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What are the answers plz help me
Serga [27]

For number 3 it would be |-10| and |10|.

Number 5a is supposed to <, because -1 is greater than -7 when you look at the line graph. The same goes for 5b. 5d is >, because 0 is always greater than -1 and it shows that on the line graph that you have there. 5e is =.

I don't see anything else wrong though. Just the ones I listed.

Hope that helps!

8 0
4 years ago
To two decimal places, find the value of k that will make the function f(x) continuous everywhere. f of x equals the quantity 3x
Fiesta28 [93]

Given function is

f(x)=\left\{\begin{matrix}3x+k & x\leq -4 \\ kx^2-5 & x> -4\end{matrix}\right.

now we need to find the value of k such that function f(x) continuous everywhere.

We know that any function f(x) is continuous at point x=a if left hand limit and right hand limits at the point x=a are equal.

So we just need to find both left and right hand limits then set equal to each other to find the value of k

To find the left hand limit (LHD) we plug x=-4 into 3x+k

so LHD= 3(-4)+k

To find the Right hand limit (RHD) we plug x=-4 into

kx^2-5

so RHD= k(-4)^2-5

Now set both equal

k(-4)^2-5=3(-4)+k

16k-5=-12+k

16k-k=-12+5

15k=-7

k=-\frac{7}{15}

k=-0.47

<u>Hence final answer is -0.47.</u>




7 0
3 years ago
Marco wants to buy a new smartphone that costs $495, with some additional accessories. He has already saved $75. Write and solve
Eddi Din [679]
He needs 420 to buy a new smartphone and accessories.

75-495= 420
420+75= 495
4 0
3 years ago
Which of the following angles are congruent to 6? select all that apply.
sveta [45]

Answer:

which of the following angles are congruent to 6? select all that apply.

A. 1

<em><u>B. 3</u></em>

<em><u>C. 2</u></em>

D. 4

8 0
3 years ago
Gregory predicts that 310 people will attend the spring play. There was an actual total of 220 people who attended the spring pl
agasfer [191]

Answer:

1550 instead of 1100

Step-by-step explanation:

20% of 1100 = 220

20% of 5500 = 1100 and then he went back and changed 5500 to 1550 and found 310.

20% of 1550 is 310

8 0
4 years ago
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