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stiv31 [10]
2 years ago
9

Michael is taking a survey of students at his high school to find out how many hours they work per week. He surveys all of the s

tudents in his Freshman English class. Is this a good sampling method?
Mathematics
1 answer:
Anna35 [415]2 years ago
4 0
It is a good sampling method because it will show a varied amount of hours per person. Not everyone works at the same business so they will all be different. If he was to survey everyone in the high school then he would have an even MORE varied chart of hours each person works.  
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What is a prediction that suggests what you expect will happen? PLZ help.
mel-nik [20]
A prediction that suggests what you expect will happened is called a Conjecture.

It is different from probability. 
8 0
3 years ago
Solve the inequality<br> -3(j+3)+9j&lt;-15
MAXImum [283]
Simplify
−
3
(
j
+
3
)
+
9
j
-
3
(
j
+
3
)
+
9
j
.
Tap for fewer steps...
Simplify each term.
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−
3
j
−
9
+
9
j
<
−
15
-
3
j
-
9
+
9
j
<
-
15
Add
−
3
j
-
3
j
and
9
j
9
j
.
6
j
−
9
<
−
15
6
j
-
9
<
-
15
Move all terms not containing
j
j
to the right side of the inequality.
Tap for fewer steps...
Add
9
9
to both sides of the inequality.
6
j
<
−
15
+
9
6
j
<
-
15
+
9
Add
−
15
-
15
and
9
9
.
6
j
<
−
6
6
j
<
-
6
Divide each term in
6
j
<
−
6
6
j
<
-
6
by
6
6
and simplify.
Tap for fewer steps...
Divide each term in
6
j
<
−
6
6
j
<
-
6
by
6
6
.
6
j
6
<
−
6
6
6
j
6
<
-
6
6
Simplify the left side.
Tap for more steps...
j
<
−
6
6
j
<
-
6
6
Simplify the right side.
Tap for more steps...
j
<
−
1
j
<
-
1
The result can be shown in multiple forms.
Inequality Form:
j
<
−
1
j
<
-
1
Interval Notation:
(
−
∞
,
−
1
)
4 0
3 years ago
Help pls pls I really need help
Misha Larkins [42]
C is correct bc if you add 10 to x you get the value of y
5 0
2 years ago
Read 2 more answers
Can you please help me solve thanks step by step
shusha [124]

Answer:

40 degrees

Step-by-step explanation:

We know the entire angle of ABD is 70 and CBD and ABC are in it.

Since we know one of them (CBD) is 30, we can subtract 30 from 70 to find ABC. This is because the angle of ABC and CBD equal ABD.

30 + x = 70

-30 from both sides

x = 40

6 0
3 years ago
Read 2 more answers
Find the value of A when pi= 3.142 and r= 5
guapka [62]

Answer:

7.855

Step-by-step explanation:

A=pi*r^2=3.142*5^2=3.142*25=7.855

7 0
3 years ago
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