Please help me out.......

Mathematics

1 answer:

Rasek [7]3 years ago

3 0

Answer:

x = 35

Step-by-step explanation:

AE = AC = 4.1

∠ EAD = ∠ CAB = 92° ( vertical angles are congruent )

AD = AB = 2.9

Thus by the SAS postulate

Δ AED ≅ Δ ACB, thus

∠ AED and ∠ ACB are congruent

x = 35

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HELPP!!

Tamiku [17]

Answer:

$1,562.50

Step-by-step explanation:

Markup= (selling price- cost)/cost

Let cost be represented by C

0.20 = (1875-C)/ C

0.20C = 1875 - C

0.20C+ C = 1875

1.20C=1875

Divide both sides by 1.20;

C= 1875/1.20

C= $1,562.50

The wholesale cost was $1,562.50

4 0

3 years ago

The diameter of a dome is 28 inches. What is the volume? Leave in terms of pi.

MArishka [77]

To find the volume of a dome, you would have to find the volume of the sphere, theoretically, and then divide it by two. To calculate the volume, we would use the formula 4/3 $\pi$ $r^{3}$ . The radius (r) in this case is half of the diameter which is 14. 4 x 3.14 (pi) = 12.56. 12.56 x 14 x 14 x 14 (2744) = 34464.64. If we divide this number by 3, we get 11488.2133. If we divide this by 2 (to get the dome), we get 5744.10656. Which would be 5744.1 rounded to the nearest tenth.