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marishachu [46]
3 years ago
15

Find x to the nearest hundredth.

Mathematics
2 answers:
Karolina [17]3 years ago
5 0

Answer:

23.78

Step-by-step explanation:

CAH

x/25

cos18=x/25

25cos18=x

x=23.78

a_sh-v [17]3 years ago
5 0

Answer:

23.78 cm

Step-by-step explanation:

Since, We know that,

In a right angle triangle,

cos \theta=\frac{B}{H}

Where, B represents base adjacent to \theta

H represents the hypotenuse adjacent to \theta

Thus, by the given diagram,

cos 18^{\circ}=\frac{x}{25}

\implies x = 25\times cos 18^{\circ}=23.7764129074\approx 23.78\text{ cm}

Hence, Last option is correct.

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$45.58 - e = $19.95<br><br> What is e? And to Check is it True or False?
Anettt [7]

We can change up the expression to find e.

45.58 - 19.95 = e.

25.63 is the result of this, so we can check:

45.58 - 25.63 = 19.95.

e = 25.63

6 0
3 years ago
What total length of ribbon is needed to Line the two long sides of the hat?
frozen [14]

Answer:

Total length of ribbon to line the long sides will be 22 in

Step-by-step explanation:

In the given figure of kite if we draw a line "h" vertically will form two right angle triangles.

Then by applying Pythagoras theorem in both the triangles.

h²= (3x + 5)² + (2x + 1)² ------(1)

h²= (5x + 1)² + 5² ------(2)

By equating both the equations

(3x + 5)² + (2x + 1)² = (5x + 1)² + 25

9x² + 25 + 30x + 4x² + 4x + 1 = 25x² + 10x + 1 + 25

13x² + 34x + 26 = 25x² + 10x + 26

13x² - 25x² + 34x - 10x + 26 - 26 = 0

- 12x² + 24x = 0

12x² - 24x = 0

x² - 2x = 0

x(x - 2) = 0

x = 2

Now we will put x = 2 in the measure of sides of the kite.

Side 1 = (3x + 5)

          = 3×2 + 5

          = 11

Side 2 = (5x + 1)

          = 5×2 + 1

          = 11

Side 3 = (2x + 1)

          = 2×2 + 1

          = 5

Therefore, Total length of ribbon to line the long sides will be = 11 + 11

= 22 in.

6 0
3 years ago
Read 2 more answers
The perimeter of a certain sqaure is 12 inches. Find the area of the sqaure in square inches​
sineoko [7]

Answer:

144 in sq

Step-by-step explanation:

multiply 12 by 12

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3 years ago
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Geometry
Lady bird [3.3K]
Hi,
Answer should be letter B, since it is the one conclusion you get using both the law of detachment and the law of syllogism.
8 0
3 years ago
1 point
Slav-nsk [51]
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