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pantera1 [17]
2 years ago
13

Correct answer will get brainliest

Mathematics
2 answers:
Elina [12.6K]2 years ago
8 0
The answer is 37.68 units^2

horrorfan [7]2 years ago
4 0

Answer:

12π units² or 37.68 units²

Hope that helps

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Write this small number in standard form. 0.0000000014 *
kap26 [50]

Answer : 1.4 x 10^-9

Step-by-step explanation:

0.0000000014

= 1.4 x 10^-9

3 0
3 years ago
Which technique for gathering data (observational study or experiment) do you think was used in the following studies?(a) The Co
miv72 [106K]

Answer:

For question a, the correct option is: This is an observational study because observations and measurements of individuals are conducted in a way that doesn't change the response or the variable being measured.

For question b, the correct option is: This is an experiment because observations and measurements of individuals are conducted in a way that doesn't change the response or the variable being measured.

For question c, the correct option is: This is an experiment because a treatment was deliberately imposed on the individuals in order to observe a possible change in the response or variable being measured.

For question d, the correct option is: This is an observational study because observations and measurements of individuals are conducted in a way that doesn't change the response or the variable being measured.

Step-by-step explanation: To give us a background on why the options above were chosen, let us see the difference between Observational study and Experimental study.

In an observational study, the researcher draws inferences from an independent variable that is not under his/her control. While in an experimental study, there in an intervention and the effects of the intervention are studied.

Therefore, in the questions a to d above, all we need to do is identity which variables were influenced and which were merely observed.

For question a, the variables were only observed.

For question b, the variables were influenced.

For question c, the variables were also influenced.

For question d, the variables were merely observed.

6 0
3 years ago
Tom has a large photo he wants to shrink to wallet-sized. It's width is 20 centimeters and it's len is 30 centimeters. If he wan
dsp73
We can use ratios, in other words, if one part of the photo is changed x times, how many times does the other part change?

We can set up the proportion as :
width 1 : length 1 = width 2 : length 2

20 : 30 = 5 : x

We do inverse multiplication, or multiply the outer with outer and inner with inner (W1 * L2 and L1 * W2)

20*x = 30*5
20x = 150
Divide all by 10
2x = 15
Divide all by 2 to isolate x
x = 15/2
x = 7.5cm
5 0
3 years ago
HELP! WILL GIVE BRAINLEST!
Darya [45]

Answer:

\frac{23\pi }{18}.

Step-by-step explanation:

1) the rule of transformation [degr → rad] is:

\alpha [rad]=\alpha [degr] *\frac{\pi }{180};

2) according to the formula above:

230°=230*π/180=23π/18 [rad].

8 0
2 years ago
claire was able to verify that x=3 was a solution to her teacher's linear equation, but the equation got erasted from thw board.
svet-max [94.6K]
X+5=8
x+(-7)=-4
4+x=7
7-x=4
3-x=0
-9×x= -27
those are just a few options
7 0
3 years ago
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