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Rom4ik
7 days ago
12

A square based brass plate in 4mm high and has a mass of 1.05kg. The density of the brass is 4.2g/cm3, calculate the length of t

he plate in centimeters​
Mathematics
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Jada and Noah wanted to find the total volume of a cube and a rectangular prism. They know the prism's volume is 20 cubic units,
Zina [12379]

Answer:

Noah is the only one correct.

Step-by-step explanation:

The volume of the cube is calculated as 10^3 = 1000 units.

The total volume combining the cube and the prism is 1000 + 20 =

1020 cubic units.

3 0
1 month ago
You need to find the distance across a river, so you make a triangle. BC is 661 feet, m∠B=103.2° and m∠C=14.4°. Find AB.
lawyer [12517]
The distance AB measures 185.77 feet.
Step-by-step explanation:
According to the attached figure, in triangle ABC,
∠B = 103.2°, ∠C = 14.4° and side BC = 661 feet.
We need to calculate AB's measure.
Since ∠A + ∠B + ∠C = 180°
∠A + 103.2 + 14.4 = 180
∠A + 117.6 = 180
∠A = 180 - 117.6
= 62.4°
Utilizing the sine rule in the triangle ABC,
AB =
= 185.77 feet.
Thus, AB = 185.77 feet is the solution.
4 0
2 months ago
The construction of copying ∠"QPR" is started below. The next step is to set the width of the compass to the length of ("AB" ).
zzz [12365]

Answer:

The length AB equals length TU.

Step-by-step explanation:

Procedure: Replicate angle <QPR so that;

<QPR matches <TSU

Set the compass so that each leg touches points A and B to replicate the distance AB.

Next, position the compass at T to draw an arc that marks point U. Draw a straight line from S to U.

Consequently,

<QPR is congruent to <TSU

This method guarantees that angles are congruent by maintaining the same radius, thus AB = TU.

4 0
3 months ago
Madame Dubois bought 20 pearl necklaces for $500. Becoming bored quickly, she sold 3/4 of them at $40 each. She sold the rest at
Leona [12618]
$725, 3/4 of 20 equals 15 necklaces. 15 times 40 equals 600. Then, 5 times 25 results in 125. Finally, 125 plus 600 equals 725.
4 0
1 month ago
Read 2 more answers
Rapunzel cut 2/3 of of her hair. She donated 7/8 of what she cut off to a wig shop.
Zina [12379]
2/3 of 7/8
2/3×7/8=7/12
8 0
1 month ago
Read 2 more answers
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