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Finger [1]
3 years ago
10

Please help if you can 30 points

Mathematics
1 answer:
9966 [12]3 years ago
4 0
Y = sec(x) has a range that doesn’t include 0.
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Danny earned $20,000 last year This year he earned $12,000. What is the percentage difference?
Karolina [17]

Answer:

60%

the reason its 60 percent is because if u think of 20,000 as just 20 its much easier

5 0
3 years ago
Calculate the slope of a line that goes through the points: (5, 7) & (2, 7). Leave your solution as a simplified (improper)
Fiesta28 [93]

Answer:

0

Step-by-step explanation:

m=(y2-y1)/x2-x1), if m is slope and the 2 points are (x1, y1), (x2, y2).

m=(7-7)/(2-5)

m=0/-3

m=0

also, you don't need to know this but if a line has a slope of zero it's a horizontal line

5 0
3 years ago
What # divided by what # equals -7
creativ13 [48]
7 divided by -1 equals -7
7 0
4 years ago
A cork has a mass of 3 grams and a volume of 16 cm3<br> . Calculate the density.
mel-nik [20]

Answer:

0.1875, or 3/16

Step-by-step explanation:

The formula for density is mass/volume.

I hope this helps :)

5 0
3 years ago
Read 2 more answers
Indicate whether the study is an observational study or a controlled experiment. A group of boys is randomly divided into two gr
MariettaO [177]

Answer:

Controlled Experiment

Step-by-step explanation:

The controlled experiment involves the experiment in which all factors are considered as constants whereas one factor is not fixed and that one is independent variable whose effect is to be tested. In short,  in controlled experiment one group of data contains control group and one or more other groups are examined by considering all other factors constant except for one factor. The control group is the group that doesn't receive any treatment whereas treatment is applied to experimental group and then effect of treatment is measured through comparing both groups.  

Here group of boys is divided in to two groups

The group watched violent cartoon= Experimental group

The group watched  cartoons without violence= Control group

The researchers want to know whether the violent actions of boys are linked to violent cartoon  and for this purpose these boys are divided into experimental group and control group and after 1 hour of cartoons watching the researcher will observed boys for next two hours.

Hence the study is Controlled experiment.

6 0
3 years ago
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