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denis23 [38]
3 years ago
8

The

Mathematics
1 answer:
Stella [2.4K]3 years ago
8 0
A. Mid segment I thin
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)Suppose ABC is a right triangle with sides of lengths a, b, and c and right angle at C. Find the unknown side length using the
konstantin123 [22]

Answer:

a=\sqrt{7}

\text{tan}(A)=\frac{\sqrt{7}}{3}

Step-by-step explanation:

Please find the attachment.

We have been given that ABC is a right triangle with sides of lengths a, b, and c and right angle at C.  

To find the side length a, we will Pythagoras theorem, which states that the sum of squares of two legs of a right triangle is equal to the square of the hypotenuse of right triangle.

a^2+b^2=c^2

Upon substituting our given values in Pythagoras theorem, we will get:

a^2+3^2=4^2

a^2+9=16

a^2+9-9=16-9

a^2=7

Take square root of both sides:

a=\sqrt{7}

Therefore, the length of side 'a' is \sqrt{7} units.

We know that tangent relates opposite side of a right triangle with adjacent side.

\text{tan}=\frac{\text{Opposite}}{\text{Adjacent}}

We can see that 'a' is opposite side of angle A and 'b' is adjacent side.

\text{tan}(A)=\frac{a}{b}

\text{tan}(A)=\frac{\sqrt{7}}{3}

Therefore, the value of tan(A) is \frac{\sqrt{7}}{3}.

3 0
3 years ago
Help me please thank you
mars1129 [50]

Answer:

x = 7

Step-by-step explanation:

The angles are alternate interior angles, so for the lines to be parallel, the angle measures must be equal.

7x - 7 = 4x + 14

3x = 21

x = 7

3 0
3 years ago
Please help S.O.S ASAP
Genrish500 [490]

Answer:

$40.95

Step-by-step explanation:

daniel earned 18.20 for working 2 1/3 hours

so he earned 18.20 / (2 1/3) for each hour of work

for 5 1/4 hours of work, he earned

= 18.20 / (2 1/3) x 5 1/4

= $40.95


4 0
3 years ago
Read 2 more answers
In 1990, the price of a gallon of unleaded gasoline was $1.37. In 1998, it was $1.02 per gallon. What is the decrease expressed
mojhsa [17]
The decrease is 35c

Q= X/100 of $1.37 = 0.35

1.37x/100 = 0.35

1.37x = 35 then divide each side by 1.37

Result is 25.5474453 percent, round up to nearest tenth.
Answer is 25%

7 0
4 years ago
Mrs. Aguirre is going to plant a rectangular garden in her rectangular backyard, as
pantera1 [17]

Answer:

The answer is below

Step-by-step explanation:

From the image attached we can see that the width of the garden is 6 ft. The length of the garden is the slanting side of the triangle (hypotenuse).

Let x be the length of the garden. The height of the triangle = 40 ft - 15 ft = 25 ft.

The base of the triangle = 80 ft - 75 ft = 5 ft.

The length of the garden is gotten using Pythagoras:

x² = 25² + 5²

x² = 650

x = 25.5 ft.

The area of the garden = length * width = 25.5 * 6 = 153 ft²

Hence the approximate area = 160 ft²

4 0
3 years ago
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