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GalinKa [24]
3 years ago
14

The triangles shown are similar. Find x and the measure of side DE. Help pls. ?

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
7 0
If they are similar, their sides are proportional. Compare 3/5 ratio is the same as x-4/x
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Evaluate7.2÷0.38.(Round to the hundredth place as needed.)
polet [3.4K]

Answer:

18.95

Step-by-step explanation:

18.94736842 rounded to its nearest hundredth will be 18.95

6 0
3 years ago
6.<br>Share £120 in the ratio 5: 2:5. (Total 12 parts)​
OverLord2011 [107]

Answer:

50:20:50

This is because you add 5+2+5=12

120/12=10

5x10=50 2x10=20 5x10=50

4 0
3 years ago
Read 2 more answers
Integral of cosecx dx =log|tanx/2| show that.​
Pie

ANSWER:

Let t = logtan[x/2]

⇒dt = 1/ tan[x/2] * sec² x/2 × ½ dx

⇒dt = 1/2 cos² x/2 × cot x/2dx

⇒dt = 1/2 * 1/ cos² x/2 × cosx/2 / sin x/2 dx

⇒dt = 1/2 cosx/2 / sin x/2 dx

⇒dt = 1/sinxdx

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Putting it in the integration we get,

∫cosecx / log tan(x/2)dx

= ∫dt/t

= log∣t∣+c

= log∣logtan x/2∣+c where t = logtan x/2

7 0
3 years ago
A car travelled 72 km in 3/4 h. If the car is travelling at a constant rate how far will the car travel in one hour?
Anvisha [2.4K]

Answer:

96 km

Step-by-step explanation:

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3 0
3 years ago
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zmey [24]

Answer:

Total surface area : 733

The shape of the base is a rectangle with sides 11 in. and 12 in.

Step-by-step explanation:

The shape of the base is a rectangle with sides 11 in. and 12 in.

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Area of the base = 11*12 = 132

Area of the two triangles =  (11*16)/2 = 88

Area of the back rectangle = 192

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So the area of the oblique face: 19.42* 12 = 233 (almost :) )

So total surface area: 132 + 88*2+192+233= 733 square in

3 0
2 years ago
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