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Alinara [238K]
3 years ago
7

1 of 5

Mathematics
2 answers:
Amiraneli [1.4K]3 years ago
8 0
Since that ratio is 7 : 5 all you gotta do is add 7 +5 to get 12 the you divide 36 by 12 to get 3. Then since ur looking for the girls, u times 3 by 5 to get 15 girl students
So the answer should be 15
dolphi86 [110]3 years ago
7 0

Answer:

15 students are girls

Step-by-step explanation:

7+5=12

12x3=36

5x3=15

7x3=21

21+15=36

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Dora is building the right square pyramid shown in the diagram.
saul85 [17]
Answer is 4 :) I hope it help you.
8 0
3 years ago
which of the ordered pairs is a solution of the given system? y=3x-2 y=-x A.(2,9)B.(1,4)C.(1/2,-1/2)
lesantik [10]

Step-by-step explanation:


7 0
3 years ago
The width of a rectangle, in feet, is represented by (3x-1). The length of the rectangle, in feet, is represented by (1.5x+3). F
bogdanovich [222]
Answer: 4.5x + 2

Explanation:

Sum of length and width = (3x-1)+(1.5x+3)
= 3x - 1 + 1.5x + 3
= 4.5x + 2
7 0
3 years ago
A pole 5 feet tall is used to support a guy wire for a tower, which runs from the tower to a metal stake in the ground. After pl
sammy [17]

The length of the guy's wire to the nearest foot is 89 feet.

The situation forms a right-angled triangle.

<h3>Properties of a right angle triangle:</h3>
  • A right-angle triangle has one angle of 90 degrees.
  • The sides can be found using the Pythagoras theorem.
  • The angles can be found using trigonometric ratios.

The hypotenuse of the triangle is the length of the wire.

let's use the smaller triangle to find the angle opposite the tower. Therefore,

tan ∅ = opposite / adjacent

tan ∅ =  5 / 2

∅ = tan⁻¹ 2.5

∅ = 68.1985905136

∅ = 68.20°

Therefore,

cos 68.20 = adjacent / hypotenuse

cos 68.20 = 33 / hypotenuse

hypotenuse = 33 / cos 68.20

hypotenuse = 88.8606843161

Therefore,

length of wire ≈ 89 feet.

learn more on triangles here; brainly.com/question/25762788?referrer=searchResults

4 0
2 years ago
Find the length of the third side. If necessary, write in simplest radical form.
soldier1979 [14.2K]

Answer:

the same way Pythagoras Theorem

and sorry for the hand writing

3 0
3 years ago
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