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Katyanochek1 [597]
3 years ago
8

Can the law of sines be used to solve the triangle shown? Explain. 40 45° 30

Mathematics
2 answers:
bulgar [2K]3 years ago
8 0

Answer:

63

Step-by-step explanation:

Maksim231197 [3]3 years ago
5 0

Answer:

Step-by-step explanation:

If BD_|_AC

in trg BDA ,sin 45=BD/40=V2/2

BD*2=40V2

BD=40V2/2=20V2  and AD=BD

so CD=30-AD=30-20V2

in trg BCD,  BC^2=BD^2+CD^2

                     BC^2=(20V2)^2+(30-20V2)^2=

                     (20V2)^2+30^2-2*30*20V2+(20V2)^2=

                     400*2+900-1200V2+400*2=

                     800+900-1200V2+800=

                      2700-1200V2

so  BC=V100(27-12V2)=10V(27-12V2

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PLEASE HELP!
serg [7]

Hello from MrBillDoesMath!

Answer:

x = 30

Discussion:

Note: I ignored the * in f*(x)  as i don't know what it means. (If this is not what you intended, please indicate what * means)

f(x) = 2 sqrt(x-5) + 4          

f(x) = 14

=>

14 = 2 sqrt(x-5) + 4             => subtract 4 from both sides

14 -4 = 2 sqrt(x-5)               => divide both sides by 2

10/2 = sqrt(x-5)                   =>

5 = sqrt(x-5)                        => square both sides

5*5 = x-5                              => add 5 to both sides

5*5 + 5  = x

25 + 5 = x

x = 30

Thank you,

MrB

3 0
4 years ago
The box plots show the weights, in pounds, of the dogs in two different animal shelters.
vfiekz [6]

The range of shelter A is 22.  The range of shelter B is 18.

<h3>What are the measures of spread?
</h3>

A box plot is used to study the distribution and level of a set of scores. The box plot consists of two lines and a box. the two lines are known as whiskers. The end of the first line represents the minimum number and the end of the second line represents the maximum number. The range is the difference between the two numbers.

  • Range of shelter A = 30 - 8 = 22
  • Range of shelter B = 28 - 10 = 18

To learn more about box plots, please check: brainly.com/question/27215146

#SPJ1

8 0
2 years ago
What equation would go through (-9,-9) and (-6,0)
Scilla [17]

Answer:

The equation of line is y = 3 x +18

Step-by-step explanation:

Given as :

The points are

(x_1, y_1) = (- 9, -9)

(x_2, y_2) = (- 6 , 0)

Let The slope = m

Now,<u> The slope is calculated in points form</u>

So, Slope = \dfrac{y_2-y_1}{x_2-x_1}

I.e m = \dfrac{y_2-y_1}{x_2-x_1}

or, m = \dfrac{0 - (-9)}{- 6 - (-9)}

or, m = \dfrac{9 }{3}

I.e m = 3

So, The slope of points = m = 3

<u>Now, the equation of line in slope - point form can be written as</u>

y - y_1 = m ( x - x_1 )

where m is the slope of line

i.e y - (-9) = ( 3 ) × ( x - (-9) )

or, y + 9 =  3 × (x + 9)

∴ y + 9 = 3 x + 27

Or, y = 3 x + 27 - 9

O,r y = 3 x + 18

So, The equation of line is y = 3 x + 18

Hence, The equation of line is y = 3 x +18 . Answer

7 0
3 years ago
The diameter of a circle measures 28 ft. what is the circumference of the circle? Use 3.14 for π, and do not round your answer.
horsena [70]

Answer:

87.92 ft

Step-by-step explanation:

The circumference of a circle can be found using the formula: c = 2pi(r) OR c = pi(d).

r stands for the radius, d stands for the diameter. Because you're given the diameter of the circle, you can simply multiply 28 by pi (3.14), and you'll get the circumference!

3 0
4 years ago
Imani earned $48 in interest after two years on an account that paid 8% simple interest annually. Use the formula I = Prt to fin
AnnZ [28]

Here you go sista

P=i/rt

P=48÷(0.02×3)

P=800

3 0
3 years ago
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