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uysha [10]
2 years ago
9

The length of a side of an equilateral triangle is x-45

Mathematics
1 answer:
Ilia_Sergeevich [38]2 years ago
3 0

Answer:

that means all the other sides are x-45 and each of the angles are 60 degrees

(i dont know what your asking for)

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Find the tangent of ∠I.
Nady [450]

Answer:

tanI = \frac{\sqrt{70} }{5}

Step-by-step explanation:

We require to calculate GH using Pythagoras' identity in the right triangle.

GH² + GI² = HI²

GH² + 5² = (\sqrt{95} )²

GH² + 25 = 95 ( subtract 25 from both sides )

GH² = 70 ( take square root of both sides )

GH = \sqrt{70}

Then

tanI = \frac{opposite}{adjacent} = \frac{GH}{GI} = \frac{\sqrt{70} }{5}

4 0
2 years ago
What is the are in square feet of the trapezoid
miv72 [106K]

Answer:

A = 94.6ft^2

Step-by-step explanation:

In order to be able to find the area of a trapezoid or any quadrilateral shape we need to use the equation:

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As we know we have the number base 7.7ft, base 14.3ft, and height of 8.6ft so then we take these numbers :

7.7 + 14.3/2 x 8.6 = 94.6

7 0
3 years ago
Do the functions have the same concavity? f(x)=2x^2-10x-30
kumpel [21]

Answer:

Use the inflection points to set up intervals. Substitute a value into each interval to find where the curve is concave up or down.

The graph is concave up

5 0
3 years ago
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A speed limit of 100 kilometers per hour (kph) is approximately equal to 62 miles per hour (mph). Write an equation relating kil
Kitty [74]
1.) 75 x .62 = 46.5 I multiplied by .62 because the kph to mph ratio is 1:.62
2.) 20 x 1.6 = 32 I multiplied by 1.6 because that's how many km are in a mile.
3 0
3 years ago
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Bob is selling floral arrangements. Each arrangement uses 1 vase and 15 tulips. Each vase costs Bob $4.00. Let C be the total co
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Answer:

C=34

Step-by-step explanation:

C= 15t + 4

C= 15(2)  + 4

C= 30 + 4

C= 34 :)

Can I have brainliest?

4 0
4 years ago
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