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
Zielflug [23.3K]
3 years ago
11

A line has a slope of 3 and passes through the point (3,6)

Mathematics
1 answer:
Vlad [161]3 years ago
6 0

Answer:

Step-by-step explanation:

whats the question

You might be interested in
Round off - 126,945 to the nearest hundred thousand nearest ten thousand nearest thousand which of these rounds amount to the cl
VARVARA [1.3K]
100,000 30,000 7,000

the first one i believe
5 0
3 years ago
Match the verbal expression (term) with its algebraic expression (definition).
serious [3.7K]

Answer:

match

Step-by-step explanation:

4 0
3 years ago
Which term best represents the intersection of two pages of an open book?
erik [133]
A. line
it is also the intersection of a laptop keyboard and the slanted screen.
3 0
3 years ago
How many more unit tiles must be added to the function f(x)=x2−6x+1 in order to complete the square? 1 6 8 9
lawyer [7]

Answer:

easy

Step-by-step explanation:

8

4 0
3 years ago
In triangle , side and the perpendicular bisector of meet in point , and bisects . If and , what is the area of triangle
stich3 [128]

In triangle ABC, side AC and the perpendicular bisector of BC meet in point D, and BD bisects ∠ABC。 If AD = 9 and DC = 7, 145–√5  is the area of a triangle.

I supposed here that [ABD] is the perimeter of ▲ ABD.

As  BD  is a bisector of  ∠ABC ,

ABBC=ADDC=97

Let  ∠B=2α

Then in isosceles  △DBC

∠C=α

BC=2∗DC∗cosα=14cosα

Thus  AB=18cosα

The Sum of angles in  △ABC  is  π  so

∠A=π−3α

Let's look at  AC=AD+DC=16 :

AC=BCcosC+ABcosA

16=14cos2α+18cosαcos(π−3α)

[1]8=7cos2α−9cosαcos(3α)

cos(3α)=cos(α+2α)=cosαcos(2α)−sinαsin(2α)=cosα(2cos2α−1)−2cosαsin2α=cosα(4cos2α−3)

With  [1]

8=cos2α(7−9(4cos2α−3))

18cos4−17cos2α+4=0

cos2α={12,49}

First root lead to  α=π4  and  ∠BDC=π−∠DBC−∠C=π−2α=π2 . In such case  ∠A=π−∠ABD−∠ADB=π4, and  △ABD  is isosceles with  AD=BD. As  △DBC  is also isosceles with  BD=DC=7,  AD=7≠9.

Thus first root  cos2α=12  cannot be chosen and we have to stick with the second root  cos2α=49. This gives  cosα=23  and  sinα=5√3.

The area of a triangle ABD=12h∗AD  where h  is the distance from  B  to  AC.

h=BCsinC=14cosαsinα

Area of  triangle ABD=145–√5

= 145–√5.

Incomplete question please read below for the proper question.

In triangle ABC, side AC and the perpendicular bisector of BC meet in point D, and BD bisects ∠ABC。 If AD = 9 and DC = 7, what is the area of triangle ABD?

Learn more about the Area of the triangle at

brainly.com/question/23945265

#SPJ4

6 0
2 years ago
Other questions:
  • In ABC what is the measure of angle B
    13·2 answers
  • Is transformation an isometry ?
    11·1 answer
  • . According to a recent report, people smile an average of µ = 62 times per day. Assuming that the distribution of smiles is app
    6·1 answer
  • In the sequence 3 8 13 18 what term of the series is the number 2218
    10·1 answer
  • Please help will mark brainly
    9·1 answer
  • Lily likes to collect records. Last year she had 15 records in her collection. Now she has 24 records.
    6·2 answers
  • Hey y’all, could you please help me answer these 2 questions. I would also like the working out please~
    12·1 answer
  • Which shows the expressions in the order they would appear on a number line from least to greatest? (5 points)
    10·2 answers
  • What is the answer to: 1a to the power of 349 b to the power of 28 c to the power of 2 d to the power of 82 e to the power of 48
    6·1 answer
  • Stephanie is a taxi driver. She rents her taxi for $300/week. She feels she can take in $120/day in fares. Let D be the number o
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!