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Alexandra [31]
3 years ago
5

Anyones good in gr5 science pls

Mathematics
2 answers:
yawa3891 [41]3 years ago
7 0

Answer:

The answers are in order..

Energy

Vibrates

Air

Wave

Step-by-step explanation:

Q.2

1. B volume

2.C decibel

3. A wave

klio [65]3 years ago
3 0

Answer:

Q 1: the answer is A

Q 2: energy, vibrates, air, and waves

Q 3: #1 and B; #2 and C; #3 and A

Step-by-step explanation:

Explanation for Q 1:

Below the surface, sound waves pass directly through the water and into your head. You're witnessing evidence that water is a good conductor of sound. For starters, sound travels through water five times faster than it travels through air.

Explanation for Q 2:

Sound is a type of energy made by vibrations. When any object vibrates it causes movement in the air. These particles bump into the particles close to them, which makes them vibrate too causing them to bump into more air particles. This movement, called waves, keeps going until they run out of energy. If your ear is within range of the vibrations, you here sound.

Explanation for Q 3:

#1 is a match with B

#2 is a match with C

#3 is a match with A

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Help please ! thank u sm
astraxan [27]

Given:

The figure of triangle LNM.

To find:

The Law of Sines for the given triangle.

Solution:

Law of sines: In triangle ABC,

\dfrac{\sin A^\circ}{a}=\dfrac{\sin B^\circ}{b}=\dfrac{\sin C^\circ}{c}

Similarly, the Law of Sines for the given triangle LNM is:

\dfrac{\sin L^\circ}{l}=\dfrac{\sin N^\circ}{n}=\dfrac{\sin M^\circ}{m}

Therefore, the correct option is b.

7 0
3 years ago
Find the area and the perimeter of the shaded regions below. Give your answer as a completely simplified, exact value in terms o
Digiron [165]

Check the picture below.

\stackrel{\textit{\Large Areas}}{\stackrel{triangle}{\cfrac{1}{2}(6)(6)}~~ + ~~\stackrel{semi-circle}{\cfrac{1}{2}\pi (3)^2}}\implies \boxed{18+4.5\pi} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{pythagorean~theorem}{CA^2 = AB^2 + BC^2\implies} CA=\sqrt{AB^2 + BC^2} \\\\\\ CA=\sqrt{6^2+6^2}\implies CA=\sqrt{6^2(1+1)}\implies CA=6\sqrt{2} \\\\\\ \stackrel{\textit{\Large Perimeters}}{\stackrel{triangle}{(6+6\sqrt{2})}~~ + ~~\stackrel{semi-circle}{\cfrac{1}{2}2\pi (3)}}\implies \boxed{6+6\sqrt{2}+3\pi}

notice that for the perimeter we didn't include the segment BC, because the perimeter of a figure is simply the outer borders.

7 0
3 years ago
Point A is at the coordinate (-5, 6). Point B is located at (-5, -4). What is the distance between these two points?
katrin [286]

Answer:

10

Step-by-step explanation:

6-(-4)=10

I think so lol

3 0
3 years ago
Read 2 more answers
A recent study claimed that half of all college students "drink to get drunk" at least once in a while. Believing that the true
lara [203]

Answer: Hypothesis testing

Step-by-step explanation:

In statistics , Hypothesis testing is a general procedure to check the results of a experiment or a survey to confirm that they have actual and valid  results.

Given claim : A recent study claimed that half of all college students "drink to get drunk" at least once in a while. By believing that the true proportion is much lower, the College Alcohol Study interviews an SRS of 14,941 college students about their drinking habits and finds that 7,352 of them occasionally "drink to get drunk".

Here the College Alcohol Study is just testing the results of the survey .

Hence, this is is s a type of Hypothesis testing.

4 0
4 years ago
/PLEASE HELP/ Andre notices that he is a little taller than Lin, who described her height as h > and h < 160 but andre is
muminat

the first one and the third one i think

7 0
4 years ago
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