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Rus_ich [418]
3 years ago
13

A beetle has been walking down a

Mathematics
2 answers:
vesna_86 [32]3 years ago
7 0
From:

3.15--------------4 metres in 300 seconds--------------->3.20

The beetle covered a distance of 4 metres in the space of 5 minutes, which is 5*60 seconds. 5*60 seconds is in fact: 300 seconds.

So the beetle was moving at a very slow speed of (1/75) metres per second.


masya89 [10]3 years ago
4 0
<em>Distance covered = s = 4 meters</em>
<em>Time taken = t = 5 minutes = 4 X 60 = 240 seconds</em>

<em>Speed = s / t = 4 / 240 </em>
<em>             = 0.01667 m/s Answer</em>
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Can someone please help with #16
ollegr [7]

Answer:

∠ WZX = 50°

XW is not an altitude.

Step-by-step explanation:

16. See the attached figure.

XW is the angle bisector of ∠ YXZ, hence, ∠ WXY = ∠ WXZ

Now, given that ∠ YXZ = 8x + 34 and ∠ WXY = 10x - 13

Hence, ∠ YXZ = 2 ∠ WXY

⇒ 8x + 34 = 2(10x - 13)

⇒ 8x + 34 = 20x - 26

⇒ 12x = 60

⇒ x = 5.

Hence, ∠ XZY = ∠ WZX = 10x = 50° (Answer)

Now, ∠ WXZ = ∠ WXY = 10x - 13 = 37°

Hence, from Δ WXZ,

∠ WZX + ∠ WXZ + ∠ XWZ = 180°

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⇒ ∠ XWZ = 93° ≠ 90°

Hence, XW is not an altitude. (Answer)

6 0
3 years ago
RES<br> Find (fºg)(1)<br> Ax) = x2 - 1<br> g(x)= v<br> a 0<br> c. 4.<br> b.<br> d. 18<br> Help pls
slava [35]

Answer:

A

Step-by-step explanation:

So we have the two functions:

f(x)=x^2-1\\g(x)=\sqrt x

And we want to find:

(f\circ g)(1)

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f(g(1))

So, to find the answer, find g(1) first:

g(x)=\sqrt x\\g(1)=\sqrt1\\g(1)=1

Now, substitute this value for g(1):

f(g(1))\\=f(1)

And plug this into f(x):

f(x)=x^2-1\\f(1)=(1)^2-1\\f(1)=1-1=0

Therefore:

f(1)=f(g(1))=(f\circ g)(1)=0

Our answer is A

3 0
3 years ago
Read 2 more answers
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max2010maxim [7]

Answer:

About 7.2 OR (7.211102551)

Step-by-step explanation:

8 0
3 years ago
In a fifth grade class 4/5 of the girls have brown hair. Of the brown-haired girls, 3/4 of them have long hair. Of the girl with
Aleks [24]

lets say there are 100 girls. 
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3/4 of the 80 who have brown hair have long hair.
3/4 of 80 is 60.
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8 0
3 years ago
Can some body help me?
maksim [4K]

Answer:

24

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2(54-6x)=73-7x

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3 0
3 years ago
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