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3 years ago

Will mark brainliest, please answer correctly!!!

Mathematics

1 answer:

dusya [7]3 years ago

8 0

Answer:

x = 32

Step-by-step explanation:

Since all sides of the triangle are congruent then the triangle is equilateral.

The angles of an equilateral triangle are congruent with measure of 60°

Equate

2x - 4 = 60 ( add 4 to both sides )

2x = 64 ( divide both sides by 2 )

x = 32

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Given sec A = 5/3 and that angle A is in Quadrant I, find the exact value of csc A in simplest radical form using a rational den

serg [7]

9514 1404 393

Answer:

5/4

Step-by-step explanation:

The relationship between the sec and csc functions is ...

csc(A) = sec(A)/√(sec²(A) -1)

For the given value of sec(A), this is ...

csc(A) = (5/3)/√((5/3)² -1) = (5/3)/√(16/9) = (5/3)/(4/3)

csc(A) = 5/4

Some calculators can tell you the answer directly.

5 0

3 years ago

What is the value of y? Enter your answer in the box. B (5x)° A (2 y+20)° C 40°

WARRIOR [948]

Answer:

y = 40°

Step-by-step explanation:

The triangle in the picture is an isosceles triangle because of the markings on the side (they show that two sides are congruent).

An isosceles triangle not only have a pair of congruent sides, but also have a pair of congruent angles.

So,

5x = 40

Solve for x,

x = 40 ÷ 5

x = 8

5x = 40

5(8) = 40

40 = 40

Now we know the two angles. We then find the last angle containing y.

We know that the total angle measurement of the triangle is 180°.

Set up the equation,

40 + 40 + 2y + 20 = 180

Solve for y,

80 + 2y + 20 = 180

100 + 2y = 180

2y = 180 - 100

2y = 80

y = 80 ÷ 2

y = 40°

7 0

3 years ago

(b) Kevin ran 4 miles more than Steve ran. The sum of their distances is 26 miles. How far did Steve run? The domain of the solu

kotegsom [21]

S=Steve. S+4=Kevin. S+s+4=26. Combine: 2s+4=26. Subtract 4: 2s=22. Divide by 2: s=11. Steve ran 11 miles. :)

5 0

3 years ago

Calculate the perimeter of the composite figure. Round your answer to the nearest hundredth. Use 3.14 for $\pi$ .

Elena-2011 [213]

1. Perimeter is 3 + 3 +3 +4 +5 = 18 feet

Area = 3*3 = 9, 1/2*3*4 = 6, 9 + 6 =15 square feet

2. perimeter = 2.5 +2.5+ 2.5+2.5+0.5+0.5 = 11 meters

Area = 3*.5 = 1.5, 3*2=6, 6+1.5 = 7.5 square meters

3. perimeter = 3.14*2*3 = 18.84 +8 = 26.8 inches

Area = 6*4 = 24 + 3.14*3^2 = 28.26 = 28.26 +24 = 52.3 inches

4. surface area = 2*π*6*20+2*π*6^2= 980.2 yards

Volume = π*6^2*20 = 2261.9 cubic yards

5.surface area = 2*(9*7+2*2+2*9) = 190 cm

Volume = 2*7*9 = 126 cubic cm

6. surface area = 2*(11*11+11*11+11*11) = 726 mm

Volume = 11 *11*11 = 1331 cubic cm

3 0

3 years ago

Define a major arc. How do you name a major arc?

kogti [31]

A major arc is an arch of a circle having the measure greater than or equal to 180 degrees (pi radians)

5 0

3 years ago

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