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3 years ago

3.64 rounded to the nearest tenths

2 answers:

8 0

5 or more add one more, 4 or less no need to stress. So in 3.64 the tenth is 6 so when you round it, it will equal 3.6. When a number is 5 + then you add one more number. But when a number is 4 or less the number will just vanish.

ANSWER:
3.6

Hope this helped! (Remember that little trick if you remember it, it will help. 5 or more, add 1 more. 4 or less no need to stress.) Have a great day. A thank you and (or) brainliest is always appreciated! Goodbye!

geniusboy [140]3 years ago

7 0

3.6 because four does not round up to the next number, it has to be five for greater.

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Does anyone know the answer?

motikmotik

Answer:

We conclude that the area of the right triangle is:

$A\:=p^2-2p-3$

Hence, option A is correct.

Step-by-step explanation:

From the given right-angled triangle,

Base = p+1

Perpendicular = 2p-6

Using the formula to determine the area of the right-angled triangle

Area of the right triangle A = 1/2 × Base × Perpendicular

$=\frac{1}{2}\left(p+1\right)\left(2p-6\right)$

Factor 2p-6: 2(p-3)

$=\frac{\left(p+1\right)\times \:2\left(p-3\right)}{2}$

Divide the number: 2/2 = 1

$=\left(p+1\right)\left(p-3\right)$

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$=pp+p\left(-3\right)+1\cdot \:p+1\cdot \left(-3\right)$

$=pp-3p+1\cdot \:p-1\cdot \:3$

$=p^2-2p-3$

Therefore, we conclude that the area of the right triangle is:

$A\:=p^2-2p-3$

Hence, option A is correct.

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3 years ago

Given triangle ABC, A=105°, a=10cm, b=7cm, find B,C and c.

Whitepunk [10]

The value of the side c will be 5.56 cm and angle C is 32.49° and angle B is 42.51°.

<h3>What is law of cosine?</h3>

Let there is a triangle ABC such that |AB| = a units, |AC| = b units, and |BC| = c units and the internal angle A is of θ degrees, then we have:

a² + b² – 2ab cos C = c²

Given triangle ABC, A = 105°, a = 10 cm, b = 7 cm.

Then we have

7² + c² – (2 · 7 · c) cos 105° = 10²

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On solving, we have

c = 5.56

Then the angle C will be

10² + 7² – 2 · 7 · 10 · cos C = 5.56²

149 – 140 cos C = 30.91

cos C = 0.8435

C = 32.49°

We know that

∠A + ∠B + ∠C = 180°

105° + ∠B + 32.49° = 180°

∠B = 42.51°

Learn more about law of cosines here:

brainly.com/question/17289163

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