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Anettt [7]
3 years ago
7

Find the area of the triangle with ∠A = 86, b = 4 ft, and c = 3 ft. Round your answer to two decimal places.

Mathematics
1 answer:
Leona [35]3 years ago
6 0
I hope this helps you



Area=1/2.b.c.sinA


Area =1/2.4.3.0,99


Area =5,98
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Answer:

- 8

Step-by-step explanation:

Given

3x - 6y = 24 ( divide all terms by - 3 )

x + 2y = - 8

8 0
3 years ago
For the function f(x)= 1/x+1. which of these could be a value f(x) when x is close to -1
WITCHER [35]

Given the following question:

f(x)=\frac{1}{x+1}

Graph the function:

The value of the function of x is infinite as you see the line goes on forever. Which means your answer is option C or "10,000."

4 0
1 year ago
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Scilla [17]

Answer:

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Step-by-step explanation:

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2 years ago
Read 2 more answers
The bearing of Q from P is 150
Lynna [10]

Answer:

(i) see first attached diagram

(ii) QR = 22.67 km (2 dp)

(iii) 243°

Step-by-step explanation:

A bearing is the angle in degrees measured clockwise from north.

<u />

<u>Part (i)</u>

see first attached diagram

<u>Part (ii)</u>

The angles marked in blue on the second attached diagram are Consecutive Interior Angles.  In this case they add to 180° as the North lines are parallel.

The sum of angles around a point is 360°

⇒ m∠QPR (shown in red on the second attached diagram) = 360 - 150 - (180 - 15) = 45°        

To calculate the distance between Q and R (marked in red on the attached diagram), use the cosine rule.

⇒ QR² = PR² + QP² - 2(PR)(QP)cos(QPR)

⇒ QR² = 32² + 24² - 2(32)(24)cos(45)

⇒ QR² = 513.8839841...

⇒ QR = √513.8839841...

⇒ QR = 22.67 km (2 dp)

<u>Part (iii)</u>

We need to find the angle marked in green on the third attached diagram.

To do this, we need to find the angle marked in pink and the angle marked in orange, then subtract them from 360°

Pink angle = 180 - 150 = 30° (using the same consecutive angle theorem as before)

Orange angle (o) using the sine rule:

⇒ sin(o)/32 = sin(45)/QR

⇒ sin(o) = 32sin(45)/22.67

⇒ sin(o) = 0.9981652337...

⇒ o = 86.52868176...°

Therefore, the green angle = 360 - 30 - 86.52868176... = 243° (nearest degree)

8 0
2 years ago
The volume of a cylinder with a height of 25cm and a radius of 20cm
pentagon [3]

Answer:

5652 cm³

Step-by-step explanation:

V = 2πr² + 2πrh

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  = 2512 + 3140

  = 5652 cm³

7 0
3 years ago
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