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Lorico [155]
3 years ago
9

A journalism teacher wants to determine

Mathematics
2 answers:
Darina [25.2K]3 years ago
4 0

Answer:

the representative sample in this situation is 120students in 4 different classes

yawa3891 [41]3 years ago
3 0

Answer:

Randomly choose 40 kids to survey.

Step-by-step explanation:

This is for every one who needs the answer to this question but cant get it so here you go!

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OABCD is a pyramid with a rectangular base of sides 15cm by 9cm.Given that the slant height OQ is 16cm find its
crimeas [40]

Hello! Your answer is below... Remember : h = height and v = volume

Answer:

H = 15.35 cm

V = 690.75 m^

Step-by-step explanation:

(H= height, V = volume, ^= square, √ = square root )

1. divide 9/2

=4.5 cm

2. use the pythagorean theorem

H=√16^-4.5^

H=15.35

if your looking for volume

1. use the formula for volume of the pyramid which is:

1/3 x base area x height

or

base area x height /3

2. then you substitute

1/3 x (9)(15) x 15.35

or

(9)(15) x 15.35 /3

V= 690.75 m^

Hope it helped u if yes mark me BRAINLIEST!

Tysm!

:)

3 0
4 years ago
Read 2 more answers
I’m in need of serious help I don’t know how to do this
Illusion [34]

Answer:

Line A, (horizontal slope), Line B, (Negative slope) Line C, (Vertical slope) Line D, (Undefined slope)

Step-by-step explanation:

3 0
3 years ago
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Hurry plz what are each angles
AURORKA [14]

A.8,B.2,C.6

Step-by-step explanation:

because

X=A is Z add b is 8

8 0
4 years ago
How do you solve:<br><br> f(x)=In(3x)?
LenKa [72]
Undefined is the answer because there is no value for x
7 0
3 years ago
Help please I don’t understand any of this
sveta [45]

The two angles form a straight line which is equal to 180 degrees. This makes the angles supplemtary.

To find x, add the two angles together to equal 180:

7x + x+20 = 180

Combine like terms:

8x + 20 = 180

Subtract 20 from both sides:

8x = 160

Divide both sides by 8:

X = 20

6 0
3 years ago
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