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oksano4ka [1.4K]
3 years ago
7

Please help 11 points up for grabs need full working out

Mathematics
2 answers:
RUDIKE [14]3 years ago
7 0
The answer is 29.476, 29.4 degrees is your answer
elena-14-01-66 [18.8K]3 years ago
3 0

Answer:

27.6

Step-by-step explanation:

6.5²-6²=a²

6.25=a²

a=2.5

23-9-2.5=11.5

Side C=12.971121771072848

Angle CDA=27.552811576717797

=27.6

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A taxi service charges $4.50 to pick someone up and then $0.75 per mile during the ride.
Umnica [9.8K]
Part A : y=$0.75m+$4.50
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3 years ago
In each problem, angle C is a right angle. Solve each triangle rounding answers to the nearest
ryzh [129]

Answer:

B = 61°

A = 29°

a = 10

Step-by-step explanation:

We are given;

c = 16, b = 14​

Since we are told that C is a right angle, it means that C = 90°

Thus using sine rule, we have;

c/sin C = b/sin B

16/sin 90 = 14/sin B

16/1 = 14/sin B

sin B = 14/16

sin B = 0.875

B = sin^(-1) 0.875

B ≈ 61°

Now, since C is a right angle, it means that c will be the hypotenuse of the triangle.

Thus, from pythagoras theorem, If the other side of the triangle is a, then;

a² + b² = c²

a² + 14² = 16²

a² = 16² - 14²

a² = 256 - 156

a² = 100

a = √100

a = 10

Since we know B and C, we can find A because sum of angles in a triangle is 180°.

Thus;

A = 180 - (B + C)

A = 180 - (61 + 90)

A = 29°

4 0
3 years ago
8^15÷8^−3 im lost i dont get this whole simply thing at all
Phantasy [73]

8^15 ÷ 1/8^3 = 8^15 x 8^3=8^18

8 0
3 years ago
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erastovalidia [21]

Answer:

Step-by-step explanation:

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svetlana [45]
Trapezoids always have 4 sides, so this is true. All rhombuses have parallel sides, so B is true also. A trapezoid has two sides that are not parallel, so C is not true. (remember, you only have to find one instance where your statement is false for it to be false) And for D, all rhombuses are kite-shaped so D is not true. A and B are true. Hope this helps. :) 
8 0
3 years ago
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