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mamaluj [8]
3 years ago
12

PROVE THAT THE SUM OF THE ANGLES OF A TRIANGLE IS 180

Mathematics
1 answer:
ycow [4]3 years ago
4 0
Each of the angles in a triangle are 60 degrees, so when you add them together, you get 180

60+60+60=180
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Nvm bro i got the answer
KIM [24]
Ok and have a nice day
6 0
2 years ago
The probability that a professional baseball player will get a hit is 1/3. Calculate the exact probability that he will get at l
Evgesh-ka [11]
It is given here that there is 1/3 probability of professional baseball player will get a hit. Hence if  at least three hits are gained out of 5 attempts, the calculation goes:  5C3* (1/3)^3*(2/3)^2 + 5C4* (1/3)^4*(2/3)^1 +5C5 *<span>(1/3)^5*(2/3)^0 equal to 0.21. </span>
3 0
3 years ago
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
2 years ago
What is the answer to 3 = x/12 + 3?
Citrus2011 [14]
The answer is 3.25 hundredths your welcome and thank you for letting me answer your answer bye.
4 0
3 years ago
Solve the equation.<br><br>5/7=10/x+2​
skelet666 [1.2K]

Answer:

x=-\frac{70}{9}

Step-by-step explanation:

Isolate the variable by doing operations to both sides of the equation.  

The work is shown below:

\frac{5}{7} =\frac{10}{x} +2\\\\\frac{5}{7} - 2=\frac{10}{x} +2 - 2\\\\-\frac{9}{7} = \frac{10}{x}\\\\ -\frac{9}{7}*x = \frac{10}{x}*x\\\\ -\frac{9}{7}x = 10\\\\ -\frac{9}{7}x * (-\frac{7}{9})= 10 * (-\frac{7}{9}) \\\\x=-\frac{70}{9}

6 0
3 years ago
Read 2 more answers
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