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3 years ago

Which of the following is equivalent to 18 -sqrt -25?

Mathematics

2 answers:

Firlakuza [10]3 years ago

7 0

$\bf 18-\sqrt{-25}\implies 18-\sqrt{-1\cdot 25}\implies 18-\sqrt{-1}\cdot \sqrt{25}\implies 18-5i$

Gemiola [76]3 years ago

3 0

Answer: 18-5i

Step-by-step explanation:

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How can you write 15abc in expanded form

Ghella [55]

Answer:

15(a)(b)(c)

Step-by-step explanation:

I don't know what your asking for

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3 years ago

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In the figure, ∆ABD ≅ ∆CBD by Angle-Side-Angle (ASA). Which segments are congruent by CPCTC?

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4 years ago

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Solve for x. X -8 = -11 With step by step explanation or with ur work.

igor_vitrenko [27]

To find:

=> The value of x

=>

$x - 8 = - 11$

Now, we'll move -8 to the other side i.e the RHS side,

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$x = - 11 + 8$

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3 years ago

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Help me please Given a1 = -7 and d = 1/2", what is the 15th term?I

-BARSIC- [3]

Answer:

Step-by-step explanation:

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5 0

3 years ago

One side of a right triangle is known to be 36 cm long and the opposite angle is measured as 30°, with a possible error of ±1°.

Tju [1.3M]

Answer:

±2.18 cm

Step-by-step explanation:

The definition of the sine of an angle (θ) is ...

Sin = Opposite/Hypotenuse

Then the hypotenuse (h) is found from ...

h = Opposite/sin(θ)

Differentiating with respect to θ gives ...

dh/dθ = Opposite×(-cos(θ)/sin²(θ))

For the given numbers, this is ...

dh/dθ = (36 cm)×(-√3/2)/(1/2)² = -72√3 cm/radian

The error of ±1° corresponds to ±π/180 radians, so the error is estimated to be ...

error = (dh/dθ)Δθ = (-72√3 cm/radian)(±π/180 radians) = ±0.4π√3 cm

error = ±2.18 cm

4 0

3 years ago