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Shalnov [3]
3 years ago
13

Nine students in Maddie's classroom are wearing red. There are

Mathematics
2 answers:
Evgen [1.6K]3 years ago
8 0

Answer:

Yes she is correct cause 30 times 30 percent is 9

Step-by-step explanation:

goblinko [34]3 years ago
5 0

Answer:

She is correct because 30 percent of 30 is 9 or in other words if you multiply 30 by 30 percent you get 9.

Step-by-step explanation:

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A 15 m pole is leaning against a wall. The foot of the pole is 10 m from the wall. Find the angle the pole makes with the ground
nataly862011 [7]

Answer:

∅ ≈ 48.2º

Step-by-step explanation:

cos∅ = adj/hyp = 10/15 = 2/3

Therefor

∅ = arccos 2/3

use calculator

∅ = 48.189685104221402

∅ ≈ 48.2º

5 0
3 years ago
4(2x + 3) in the simplest form
Aleonysh [2.5K]

Answer: 8x+12

Step-by-step explanation:

We can use the Distributive Property to get it in it's simplest form

4(2x+3)

(4)(2x)+(4)(3)

8x+12

3 0
3 years ago
Read 2 more answers
Which equation best represents the line of best fit for the scatterplot?
Masja [62]

Answer:

The line of best fit would be the line in between all the points in the scatter plot that is the closest to having an equal amount of dots on each side.

If there isn't one with the exact number, pick the one that is the <em>very closest</em>.

8 0
4 years ago
4.7 x 6.8. help pls​
anzhelika [568]

Answer:

The answer is: 31.96

Step-by-step explanation:

Hope this helps! Have a nice day! Please consider making me Brainliest!

Steps: Line up the equations then solve. 4*6 is 24 and 7*8 is 56 then round, tada!

4.7 x

<u>6.8</u>

<u>24.56</u>

<u>Round: 31.96</u>

8 0
4 years ago
Read 2 more answers
We have a study involving 5 different groups that each contain 9 participants (45 total). What two degrees of freedom would we r
vivado [14]

Answer:

Degree of freedoms F(4,40)

Step-by-step explanation:

Given:

There is a study which is involving 5 different groups that each contains 9 participants (totally 45)

The objective is to calculate the degree of freedoms

Formula used:

Numerator degree of freedom = k-1

denominator degree of freedom=N-K

Solution:

Numerator degree of freedom = k-1

denominator degree of freedom=N-K

Where,

K= number of groups = 5

N= total number of observations

which is given as follows,

N=45

Then,

Numerator degree of freedom = k-1

=5-1

=4

Denominator degree of freedom = N-K

=45-5

=40

Therefore,

Degree of freedoms, F(4,40)

7 0
3 years ago
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