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Rom4ik [11]
2 years ago
11

In ΔGHI, the measure of ∠I=90°, the measure of ∠G=82°, and GH = 3.4 feet. Find the length of HI to the nearest tenth of a foot.

Mathematics
2 answers:
taurus [48]2 years ago
5 0

Answer:

3.4

Step-by-step explanation:

Cloud [144]2 years ago
5 0

Answer:

3.4

Step-by-step explanation:

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What type a problem can be. Using the greatest common factor
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The word greatest in a word problem tells you to do GCF and the word least in a problem means to use the LCM
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Find the sine ratio of angle . Hint: Use the slash symbol (/) to represent the fraction bar, and enter the fraction with no spac
Semmy [17]

Answer:

\frac{15}{17}

6 0
3 years ago
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What are the roots of the quadratic equation below?<br> x2 + 2x= -5
muminat

Answer:

No real root.

Complex roots:

x = -1 \pm 2i

Step-by-step explanation:

x^2 + 2x = -5

x^2 + 2x + 5 = 0

There are no two integers whose product is 5 and whose sum is 2, so this trinomial is not factorable. We can use the quadratic formula.

x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}

x = \dfrac{-2 \pm \sqrt{2^2 - 4(1)(5)}}{2(1)}

x = \dfrac{-2 \pm \sqrt{4 - 20}}{2}

x = \dfrac{-2 \pm \sqrt{-16}}{2}

Since we have a square root of a negative number, there are no real roots. If you have learned complex numbers, then we can continue.

x = \dfrac{-2 \pm 4i}{2}

x = -1 \pm 2i

7 0
3 years ago
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How many even numbers are between 1 and 30. My head hurts thanks
VARVARA [1.3K]

Answer:

15

Step-by-step explanation:

2

4

6

8

10

there are 5 between 1-10

so 3*5=15 between 1-30

3 0
3 years ago
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Can someone help me do these 2 questions?? It's Trigonometry.. ​
LUCKY_DIMON [66]

Answer:

  6.  36°

  7.  33.1 cm

Step-by-step explanation:

6. The tangent function relates the sides of a right triangle to the acute angles. Here, the angle west of south that is the direction of the ship from harbour is related to the distances by ...

  tan(angle) = (18 km)/(25 km)

Then the angle can be found using the inverse tangent function:

  angle = arctan(18/25) ≈ 35.75°

The direction back to the harbour is this same angle east of north. Since bearing angles are measured clockwise from north, the desired bearing is 36°.

__

7. The cosine function relates the hypotenuse of a right triangle to the side adjacent to the angle of interest. Here, we have ...

  cos(72°) = (diameter of glass)/(straw length to glass rim)

  straw length to glass rim = (diameter of glass)/cos(72°) ≈ (9 cm)/0.309017

  straw length to glass rim ≈ 29.1 cm

The straw extends 4 cm above the rim of the glass, so is 4 cm longer than this calculated value. The straw is about 33.1 cm long.

3 0
3 years ago
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