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UNO [17]
3 years ago
13

What dose the hypotenuse=?

Mathematics
1 answer:
Kitty [74]3 years ago
3 0
Hypotenuse by Pythagoras theorem = 407.83.
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Find the area of this semi-circle with diameter, d = 58cm.<br> Give your answer rounded to 2 DP.
Anastasy [175]

Answer:

The area of the semi-circle

                                  A = 1320.37 cm²

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given the diameter of the circle 'd' = 58cm

The radius of the circle 'd' = 2r

                                       r = \frac{d}{2} = \frac{58}{2} = 29

The area of the semi-circle

                           A = \frac{1}{2} \pi r^{2}

                           A = \frac{1}{2} (3.14) ((29))^{2}

                          A = 1320.37 cm²

5 0
3 years ago
A bookstore orders a shipment of books. The books weigh 3.2 lb each. How much will the shipment of 100 books weigh? Write your a
Sonbull [250]

Answer:

3.2 × 10²

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4 0
3 years ago
Christie was on a road trip. She traveled 320.95 miles on day one, 231.45 miles on day two, and 120.32 miles on day three. How m
spin [16.1K]
Christie traveled 672.72 miles on the three day road trip.
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3 years ago
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Please help find them <br>1 AB<br><br>2 BC​
spin [16.1K]

Answer:

AB ≈ 15.7 cm, BC ≈ 18.7 cm

Step-by-step explanation:

(1)

Using the Cosine rule in Δ ABD

AB² = 12.4² + 16.5² - (2 × 12.4 × 16.5 × cos64° )

       = 153.76 + 272.25 - (409.2 cos64° )

       = 426.01 - 179.38

       = 246.63 ( take the square root of both sides )

AB = \sqrt{246.63} ≈ 15.7 cm ( to 1 dec. place )

(2)

Calculate ∠ BCD in Δ BCD

∠ BCD = 180° - (53 +  95)° ← angle sum in triangle

∠ BCD = 180° - 148° = 32°

Using the Sine rule in Δ BCD

\frac{BC}{sin53} = \frac{BD}{sin32} = \frac{12.4}{sin32} ( cross- multiply )

BC × sin32° = 12.4 × sin53° ( divide both sides by sin32° )

BC = \frac{12.4sin53}{sin32} ≈ 18.7 cm ( to 1 dec. place )

         

6 0
2 years ago
Willa and Jack are playing a game. Willa's score is 1 point. Jack's score is -3 points. Which
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Answer:

Willa's score is 4 points greater than Jack's.

Step-by-step explanation:

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3 years ago
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