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Gekata [30.6K]
3 years ago
9

13.2)

Mathematics
1 answer:
Neko [114]3 years ago
4 0

Answer:

390

Step-by-step explanation:

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Find the length of AC round to the nearest hundred
Nataly [62]

Answer:

Option B. 9.11

Step-by-step explanation:

To find the length of line AB, we must first of all calculate the value of θ as shown in the attached photo.

The value of θ can be obtained as follow:

θ + 39° + 120° = 180° (sum of angles in a triangle)

θ + 159° = 180°

Collect like terms

θ = 180° – 159°

θ = 21°

Thus, we can obtain the length of line AB by using sine rule as illustrated below:

b/Sine B = c/Sine C

b = 16

Angle B = 39°

Sine C = 21°

c =?

b/Sine B = c/Sine C

16/Sine 39° = c/Sine 21°

Cross multiply

c × Sine 39° = 16 × Sine 21°

Divide both side by Sine 39°

c = (16 × Sine 21°) / Sine 39°

c = 9.11

Therefore, the length of line AB is 9.11

7 0
3 years ago
Counting by thousands, write five numerals from 1578 onwards.​
Fofino [41]
2578,3578,4578,5578,5678
3 0
2 years ago
Read 2 more answers
Factor completely 4x2 − 8x + 4.
olga nikolaevna [1]

<u>Given </u><u>:</u><u>-</u><u> </u>

  • 4x² - 8x - 4 .

<u>To </u><u>Find</u><u> </u><u>:</u><u>-</u><u> </u>

  • To find the factorised form .

<u>Answer</u><u> </u><u>:</u><u>-</u><u> </u>

Taking the given expression,

→ 4x² - 8x + 4

→ 4x² - 4x -4x + 4

→ 4x ( x - 1 ) -4( x -1)

→ (4x - 4)(x-1)

<u>Hence </u><u>the</u><u> </u><u>required</u><u> answer</u><u> is</u><u> </u><u>(</u><u>4</u><u>x</u><u> </u><u>-</u><u> </u><u>4</u><u>)</u><u>(</u><u> </u><u>x </u><u>-</u><u> </u><u>1</u><u>)</u><u> </u><u>.</u>

4 0
2 years ago
Simplify the expression and write without negative exponents:
andreyandreev [35.5K]
8sr6 + 2sr2×2×3 +5sr3 - sr2×3×3×3
=8sr6 + 2(2)sr3 + 5sr3 - 3sr2×3
=8sr6 + 4sr3 + 5sr3 - 3sr6
=8sr6 - 3sr6 + 4sr3 +5sr3
=5sr6 + 9sr3 (ans)
3 0
3 years ago
A baseball team played 160 regular season games. the ratio of the number of games they won to the number of games they lost was
timurjin [86]
They won 96 games because 160 divided by 5 is 32. now 32 times 3 equals to 96. :) Hope this helps
6 0
3 years ago
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