1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alla [95]
2 years ago
6

Trigonometry Question, check pic.

Mathematics
1 answer:
Lynna [10]2 years ago
3 0

\text{AD is a bisector of angle BAC, so}\\\\\angle DAC = \angle BAD = 17^{\circ}~ \text{and}~ \angle BAC = 17^{\circ} + 17^{\circ}=34^{\circ}\\\\\text{In}~ \triangle ADB\\\\~~~~~~~\tan \angle BAD = \dfrac{DB}{AB}\\\\\implies DB = AB\tan \angle BAD \\\\~~~~~~~~~~~~=21 \tan 17^{\circ}\\\\

\text{In}~ \triangle ABC\\\\~~~~~~~\tan \angle BAC = \dfrac{CB}{AB}\\\\\implies BC = AB \tan \angle BAC\\\\\implies DB+CD = AB\tan \angle BAC\\\\\implies CD = AB \tan \angle BAC - DB\\\\\implies CD=21\tan 34^{\circ}-21 \tan 17^{\circ}\\\\\implies x\approx8 ~ \text{cm}

You might be interested in
4) You can buy 3 apples at the Quick Market for $1.20. You can buy 5 of the
rusak2 [61]

Answer: Stop and Save is better

Step-by-step explanation:

you can get 3 apple at Quick market for $1.20, but you can buy 5 at Stop and Save for only 5 cents more, plus your getting two more apples.

6 0
3 years ago
Read 2 more answers
Solve (x – 3)2 = 49. Select the values of x. –46 -4 10 52
Fudgin [204]

Answer: x = 55/2

Step-by-step explanation: (x)(2) (-3)(2) = 49                                                       2x-6+6 = 49+6                                                                                                               2x/2 = 55/2                                                                                                                   x = 55/2

I know that my answer isn't a choice for one of the values of x but that's the result that I got when I solved (x–3)2 = 49.

6 0
2 years ago
Best and correct answer gets brainliest!!!
dmitriy555 [2]
59 degrees!
because you set up your problem: 3c+2+2c-7=90
then combine all like terms: 5c-5=90
Add 5 to both sides: 5c=95
then divide both sides by 5: c=19
Plug in your answer: 3(19)+2=59
8 0
3 years ago
Charles has 2 2/3 ounces of seeds. He needs 4 4/5 ounces in order to complete the garden. How much more seeds he need?
yawa3891 [41]

Answer:

Charles need 3\frac{1}{5} more ounces of seeds.

Step-by-step explanation:

Given that:

Quantity of seeds Charles has = 2\frac{2}{3} = \frac{8}{3} ounces

Quantity of seeds Charles need = 4\frac{4}{5} = \frac{24}{5} ounces

Let,

x be the number of remaining seeds Charles need.

x = Seeds needed - Seeds Charles already have

x = \frac{24}{5}-\frac{8}{3}

x = \frac{72-24}{15}

x = \frac{48}{15}

x = \frac{16}{5}

x = 3\frac{1}{5} ounces

Hence,

Charles need 3\frac{1}{5} more ounces of seeds.

5 0
3 years ago
Please help me I do not get this!! Thanks
Solnce55 [7]
The answer is C. Hope you get it!
7 0
3 years ago
Read 2 more answers
Other questions:
  • Write the number of the word problem that match the system of equations illustrated:
    7·1 answer
  • The largest fish ever caught in Lake A weighed 650 pounds. This is 208.2 pounds less than seven times the weight of the largest
    5·1 answer
  • PLEASE HELP FOR BRAINLIEST ANSWER!!! AND A HUGE THANKYOU
    8·2 answers
  • p: If every fourth card drawn is a spade, then 25% of the cards in a deck would be spades. If 25% of the cards in a deck are spa
    11·1 answer
  • Recall information from the previous task. A snack-size bag of carrots has a mean weight of 1.75 ounces and a
    9·2 answers
  • I HAD TO PUT IN MATH BUT ITS PE
    7·1 answer
  • Need help on this question asap pleasee :)
    15·1 answer
  • HELP PLEASEEEEEEEEEEEEEE
    7·1 answer
  • Justin uses 2/3 of a gallon of paint to cover 1/12 of his bedroom wall. How much paint is needed to cover the entire wall
    12·1 answer
  • Can someone help me out my grade are bad
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!