3 years ago

Plsss help me with this question!!!! Will mark best answer brainiest!!!!

Mathematics

1 answer:

soldi70 [24.7K]3 years ago

3 0

Answer:

Step-by-step explanation:

D. Or c.

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What type of solution would tho following system have?

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LeBron goes to the store with six dollars and buys four packs of gum. James goes to the store with five dollars and buys two pac

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Find a formula for the sum of the first n even integers : 2 + 4 + 6 + ... + 2n.

Sedbober [7]

Let S be the sum,

S = 2 + 4 + 6 + ... + 2 (n - 2) + 2 (n - 1) + 2n

Reverse the order of terms:

S = 2n + 2 (n - 1) + 2 (n - 2) + ... + 6 + 4 + 2

Add up terms in the same positions, so that twice the sum is

2S = (2n + 2) + (2n + 2) + (2n + 2) + ... + (2n + 2)

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Divide both sides by 2 to solve for S :

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2 years ago

Two sides and an angle (SSA) of a triangle are given. Determine if the given measurements produce one triangle, two triangles, o

Mariana [72]

Answer:

1. c = 28.1, A = 19°, C = 144°

2. c = 2.0, A = 161°, C = 2°

Step-by-step explanation:

In general, if the given angle is not opposite the longest side, there will be two solutions. That is the case here.

Angle A can be found from the law of sines. It will be ...

A = arcsin(a/b·sin(b)) = arcsin(15.73/13.8·sin(17°)) ≈ arcsin(0.333261) ≈ 19.46°

or the supplement of that, 160.54°.

Angle C will be the angle required to make the sum of angles be 180°, either 143.53° or 2.47°.

Side c will be ...

c = b·sin(C)/sin(B) ≈ 47.2002×sin(C)

either 28.053 or 2.032.

There are two possible triangles:

(A, C, c) = (19°, 144°, 28.1) or (161°, 2°, 2.0)

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4 years ago