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
Savatey [412]
3 years ago
7

The point p (3,4) is the midpoint of the join of A (7,8) and B find tge coordinates of B

Mathematics
1 answer:
Shalnov [3]3 years ago
3 0

Answer:

B(-1, 0)

Step-by-step explanation:

coordinates of midpoint p(x,y) are calculated as

x= \frac{x_1+x_2}{2}  ---------- (1)

y= \frac{y_1+ y_2}{2}  -----------(2)

Here (x_1, y_1) = (7, 8) and (x_2, y_2) \ is \ unkwon

<u>Using equation (1)</u>

<u />3=\frac{7+x_2}{2} \\x_2=-1<u />

<u>Using equation (2)</u>

<u />4=\frac{8+y_2}{2} \\y_2=0<u />

You might be interested in
The graph of a quadratic function has a vertex located at (7,-3) and passes through points (5,5) and (9,5). Which equation best
Serga [27]

Answer:

B) f(x)=2(x-7)^2-3.

Step-by-step explanation:

The vertex form of the equation is given by f(x)=a(x-h)^2+k.

We plug in the vertex to obtain:

f(x)=a(x-7)^2-3.

Since the graph passes through (5,5) and (9,5), they must satisfy its equation.

5=a(9-7)^2-3.

5+3=4a.

8=4a

Divide both sides by 4.

a=2

Therefore the equation is:

f(x)=2(x-7)^2-3.

4 0
3 years ago
Which value is equivalent to 4
Bumek [7]

Answer:

Hey!!!!!

It looks like you meant to attach a picture, forgot, or your internet connection went out. Because of whatever the cause, we cannot answer your question!

Could you try reposting it?

Thx!

Sahkfam

8 0
3 years ago
Solve the equation.
Levart [38]

Answer:

x=34

Step-by-step explanation:

6 - ( x-7) ^ 1/3 = 3

Subtract 6 from each side

6-6 - ( x-7) ^ 1/3 = 3-6

- ( x-7) ^ 1/3 = -3

Divide each side by a negative

 ( x-7) ^ 1/3 = 3

Cube each side

 ( x-7) ^ 1/3 ^3 = (3)^3

x-7 = 27

Add 7 to each side

x-7+7 = 27+7

x = 34

Check

6 - ( 34-7) ^ 1/3 = 3

6 - (27^1/3 = 3

6 -3 =3

3=3

Good solution

8 0
3 years ago
Which are the solutions of x² = 19x + 12​
Sever21 [200]

Answer:

\{x=\frac{19-\sqrt{409} }{2}\ , \  x=\frac{19+\sqrt{409} }{2}\}

Step-by-step explanation:

x² = 19x + 12

⇔ x² - 19x - 12 = 0

Calculating the discriminant :

b² - 4ac = (-19)² - 4×1×(-12) = 409

The discriminant is positive ,then the equation has two solutions.

x=\frac{19-\sqrt{409} }{2} \ \ or\ \ x=\frac{19+\sqrt{409} }{2}

4 0
2 years ago
Find the value of each variable:
Leona [35]

Answer:

5√3 = b

5 = d

10√3 = a

15 = c

Step-by-step explanation:

Sin60° = opp/hyp

sin60° = b/10

10sin60° = b

5√3 = b

Cos60° = adj/hyp

Cos60° = d/10

10Cos60° = d

5 = d

Sin30° = opp/hyp

Sin30° = 5√3/a

a = 5√3/Sin30°

a = 10√3

Tan30° = opp/adj

Tan30° = 5√3/c

c = 5√3/tan30°

c = 15

3 0
3 years ago
Other questions:
  • Can some one please help me thank you ☺️
    8·1 answer
  • Tina scored 29 out of 35 points on an assignment. What is Tina’s percentage?
    7·1 answer
  • 3 brothers share 2 sandwiches equally. how much does each brother get
    6·2 answers
  • Help me pleaseeeeeee
    11·1 answer
  • The digit 5 in which number represents a value of 0.5? The answers are 5.4, 0.059, and 8.513.
    10·1 answer
  • What are the coordinates of the image of the given point B (-10,-6) under a dilation with the center at the original and
    12·2 answers
  • HCFof 506 and 1863
    6·1 answer
  • The probability of having a head in a single toss of a coin is? <br>​
    13·2 answers
  • Please help! I’ll give brainliest to whoever answers also! Thank you!
    15·1 answer
  • Which expression is equivalent to -6(-2+2x)?<br> O −4-12%<br> O −4+2%<br> O 4-12%<br> O 4+12%
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!