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3 years ago

Use the law of sines to find the length of side c (answer as soon as possible)

Mathematics

1 answer:

Serggg [28]3 years ago

7 0

Answer:

Step-by-step explanation:

Using the law of sines in ΔABC, then

$\frac{c}{sinC}$ = $\frac{a}{sinA}$

Substituting in values gives

$\frac{c}{sin31.6}$ = $\frac{25}{sin38}$ ( cross- multiply )

c × sin38° = 25 × sin31.6° ( divide both sides by sin38° )

c = $\frac{25(sin31.6)}{sin38}$ ≈ 21.28 → D

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Please help i have a c

Sergeu [11.5K]

Answer: the last option

Step-by-step explanation:

the top right is I, the top left is II, the bottom left is III, and the bottom right is IV

6 0

3 years ago

Read 2 more answers

What is the measure of Z PRQ? 62° 108° P. N R

Ksju [112]

The measure of PRQ is 46 degrees.

6 0

3 years ago

Lin has a drawing with an area of 20 in squared. If she increases all sides by a scale factor of 4, what will the new area be?

diamong [38]

The new area will be 320 in²

Explanation

Lin has a drawing with an area of 20 in² and she increases all sides by a scale factor of 4.

The general rule we need to use here.......

"If the lengths of the sides in a shape are all increased by a scale factor of $k$ , then the area will be increased by a scale factor of $k^2$ "

Here the sides are increased by a scale factor of 4. So, the area will be increased by a scale factor of $(4)^2 =16$

Thus, the new area will be: $(20*16)in^2 = 320in^2$

8 0

3 years ago

In 2000 the number of students enrolled at Arlington County day school was 823 students in 2010 the population was approximately

RoseWind [281]

Answer:

enrollment decreases by 14.34%.

Step-by-step explanation:

Given that number of students enrolled in 2000 = 823

Given that number of students enrolled in 2010 = 705

705 is less than 823 so that means number of students enrollment is decreasing.

Decrease = 823-705 = 118

Percent decrease is given by formula:

$Percent =\frac{part}{whole}\cdot100 =\frac{118}{823}\cdot100= 14.3377885784$

which is approx 14.34%.

Hence final answer is that enrollment decreases by 14.34%

5 0

3 years ago

Attorney A charges a fixed fee on $250 for an initial meeting and $150 per hour for all hours worked after that. Write an equati

Anettt [7]

let h be the number of hours then

A → C = 150h + 250 ( where C is charge )

B → C = 175h + 150

for 26 hours

A → C = (150 × 26 ) + 250 = 3900 + 250 = $4150

B → C = (175 × 26 ) + 150 = 4550 + 150 = $4700

Attorney A is cheaper for 26 hours, thus better deal

Equate the 2 equations to find hours they charge the same

175h + 150 = 150h + 250 ( subtract 150h from both sides )

25h + 150 = 250 ( subtract 150 from both sides )

25h = 100 ( divide both sides by 25 )

h = 4 ← number of hours when charges for both are equal

Thus Attorney A becomes a better deal at 5 hours

3 0

3 years ago