4 years ago

Someone please help me!!! HELPPPP ASAPPPP!!!

Mathematics

1 answer:

BartSMP [9]4 years ago

6 0

Answer:

I think it's 6.

Step-by-step explanation:

I think this because b is 62 leaving only 6 to become 68.

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2x + 3 – 4 = 5x - 7 2 -2 - 9 9

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In ΔJKL, k = 3.7 cm, ∠K=15° and ∠L=41°. Find the length of j, to the nearest 10th of a centimeter.

Alexandra [31]

Answer:

The length of side j is 11.85cm

Step-by-step explanation:

Given that

In triangle JKL,

$\angle k=15$

$\angle l=41$

Side k=LJ=3.7cm

To find side j=KL:

By using sine rule,

We can write as

$\frac{SinK}{LJ} = \frac{SinL}{JK} = \frac{SinJ}{KL} \\\frac{Sin15}{3.7} = \frac{Sin41}{JK} = \frac{SinJ}{KL}$

Using property of triangle,

$\angle k+\angle l+\angle j=180$

$15+41+\angle j=180$

$\angle j=124$

$\frac{Sin15}{3.7} = \frac{Sin41}{JK} = \frac{Sin124}{KL}\\\frac{Sin15}{3.7} = \frac{Sin124}{KL}\\KL=3.7\frac{Sin124}{Sin15}\\KL=3.7\frac{0.8290}{0.2588}\\KL=11.85cm$

Thus,

The length of side j is 11.85cm

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3 years ago

Is 0.7 repeating irrational

Nastasia [14]

The number 0.7 is a rational number. Hoped this helped

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