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vampirchik [111]
3 years ago
12

The effect of the time of day a science class is taught on test scores is being

Mathematics
2 answers:
Simora [160]3 years ago
5 0

If you have answer choices that would be helpful.

If not I would assume that it means that giving every student the same test is an example of a controlled variable.

s344n2d4d5 [400]3 years ago
4 0

Answer:

Amount of homework given

Step-by-step explanation:

Correct!

You might be interested in
Interior angle of triangles
Neporo4naja [7]
I'm not sure what you are looking for. If you want to know the total number of degrees that interior angles of triangles total, they add up to 180°.

Hope this helps! :)
7 0
3 years ago
F(x)=x^4+3, g(x)=x-7 and h(x)=square root of x then f(g(h(x))=
SpyIntel [72]

Answer:

<em>x² - 28x√x + 294x - 1372√x + 2404 </em>

Step-by-step explanation:

f(x) = x^{4} + 3

g(x) = x - 7

h(x) = √x

f(g(h(x))) - ?

g(h(x)) = √x - 7

f(g(h(x))) = (\sqrt{x} -7) ^{4} + 3 = ( √x - 7 )² × ( √x - 7 )² + 3 =

= (x - 14√x + 49)(x - 14√x + 49) + 3 =

= x² - 14x√x + 49x - 14x√x + 196x - 686√x + 49x - 686√x + 2401 + 3 =

=  <em>x² - 28x√x + 294x - 1372√x + 2404</em>

8 0
3 years ago
virgil has 1/6 of a bday cake left over. he wants to share with 3 friends. what fraction of the original cake will each of the f
Tpy6a [65]
1/6 divided by 4 = 1/24
so each person would get 1/24 of that cake
(just wondering what would the flavor of the cake be??)
3 0
3 years ago
Bill and Eugene left the airport at the same time. They traveled in opposite directions. Eugene traveled 21.1 km/h faster than B
gizmo_the_mogwai [7]

Answer:

56.3 kilometers per hour

Step-by-step explanation:

We know D = RT

where

D is distance

R is rate (speed)

T is time

Let's Bill's rate be "x". Thus using equation we can write:

D = xt

We know Eugene travelled 21.1 faster than Bill, so Eugene's rate is 21.1 + x. So we can write:

D = (21.1 + x)t

D = 21.1t + xt

Now, putting t = 1 in both since after 1 hour given, we have:

D = x(1)

D = x

and

D = 21.1(1) + x(1)

D = 21.1 + x

We know the sum of both the distance is 133.7, so we can write:

x + 21.1 + x = 133.7

Solving for x:

2x = 133.7 - 21.1

2x = 112.6

x = 112.6 / 2

x = 56.3 km/hr

This is Bill's rate: 56.3 kilometers per hour

8 0
3 years ago
You are hanging 3 display shelves with the same width on a wall so that there is 18 inches of space above each shelf for placing
Kazeer [188]

Answer:

You need to have a minimum of 16 inches of clearance.

Step-by-step explanation:

4 0
3 years ago
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