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Evgesh-ka [11]
3 years ago
6

Help! Use trigonometric ratios to determine whether or not it is possible to construct triangle ABC if b = 3, c = 5, and B = 45°

. In your final answer, include all of your calculations.
Mathematics
2 answers:
elena-s [515]3 years ago
7 0
No its not posible because the sine is 1.5 and it cant be higher then 1
Mrrafil [7]3 years ago
5 0

Answer:

Step-by-step explanation:

Alright, lets get started.

Side b is 3

Side c is 5

Angle B is 45

Lets use sin law in this triangle.

\frac{sinB}{b}=\frac{sinC}{c}

\frac{sin45}{3}=\frac{sinC}{5}

\frac{sin45*5}{3}=sinC

sinC=1.18

Which is not possible because sin is never greater than 1

Hence the triangle is not possible.    :   Answer

Hope it will help :)

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Dorothy and Rosanne are baking cookies for a party. Working alone, Rosanne can finish the cookies in 6 hours. Dorothy can finish
garik1379 [7]

Answer:

It will take them 3.43 hours.

Step-by-step explanation:

Let T denote the total cookies that need to be cocked. Observe that:

  1. If Rosanne finishes the cookies in 6 hours, that means that she can make \frac{T}{6} cookies per hour.
  2. If Dorothy finishes the cookies in 8 hours, that means that she can make \frac{T}{8} cookies per hour.

Then, by 1) and 2), if they work together would we able to make

\frac{T}{6}+\frac{T}{8}=\frac{8T+6T}{48}=\frac{14}{48}T=\frac{7}{24}T

cookies per hour.

Therefore, in order to finish the T cookies they will need \frac{24}{7}\approx3.43 hours

3 0
4 years ago
In a trivia game, players lose points for wrong answers.
Elan Coil [88]

Answer:

-20 points for a incorrect answer

Step-by-step explanation:

-160/8=20

8 0
3 years ago
Read 2 more answers
Minimum point of the quadratic x^2+6x-2
WITCHER [35]

Answer:

(-3,-11)

Step-by-step explanation:

Compare the given quadratic equation with the general quadratic equation.

a=1, b=6 and c=-2

x=-\dfrac{(6)}{2(1)}\\=-3

Subsitute -3 for x in given quadratic equation.

y=(-3)^2+6(-3)-2\\=9-18-2\\=-11

The minimum point is (-3,-11).

3 0
3 years ago
The swimming pool is open when the high temperature is higher than 20^\circ\text{C}20 ? C20, degree, C. Lainey tried to swim on
Svetlanka [38]

Answer:

30-3d\leq 20

Step by step explanation:

Let d represent the rate of temperature decrease in degrees Celsius per day from Monday to Thursday.  

As temperature decreased at a constant rate in the next 3 days, so the rate of temperature will decrease 3d degree Celsius in 3 days.  

We are told that the pool was open on Monday. The high temperature was 30^{\circ}{\text{C} on Monday. So the decrease in temperature from Monday to Thursday will be 30-3d.

We have been given that the swimming pool is open when the high temperature is higher than 20^{\circ}{\text{C}.

As the pool was closed on Thursday. This means that temperature on Thursday was less than or equal to 20 degree Celsius. We can represent this information in an inequality as:

30-3d\leq 20

Therefore, the inequality 30-3d\leq 20 can be used to determine the rate of temperature decrease in degrees Celsius per day, d, from Monday to Thursday.

5 0
3 years ago
Please help me! <br>Extra points for this one
emmainna [20.7K]

Answer:

3x +-4

Step-by-step explanation:

well since it is linear functions you would want the Mx+B equation to be present and since you have to find rise over run you would get 3/1 which is just 3 translated giving you a slope of 3 and your y-intercept is your B so in forth giving you the answer of 3x+ -4

plz mark brainliest

7 0
4 years ago
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