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
aalyn [17]
3 years ago
12

The measure of angle A in ABC is twice the measure of angle B and the measure of angle C is 20° less than the measure

Mathematics
1 answer:
diamong [38]3 years ago
7 0

Answer:

m∡A = 100°

m∡B = 50°

m∡C = 30°

Step-by-step explanation:

let 'x' = m∡B;  50°

let '2x' = m∡A;   100°

let 'x-20' = m∡C;   30°

x + 2x + x - 20 = 180

4x - 20 = 180

4x = 200

x = 50

You might be interested in
No links, help ASAP with explanation
almond37 [142]
The answer to your question is G
7 0
3 years ago
How to find the points of a line that is perpendicular to a line you only know the slope of
Lady bird [3.3K]

Answer:

Write the new equation in slope-intercept form.  Replace the old slope with the new slope.  Replace the y-intercept's value with a variable (b).

5 0
3 years ago
Read 2 more answers
Which is correct?
astra-53 [7]

Answer:

B

Step-by-step explanation:

763 is greater 746

5 0
3 years ago
Read 2 more answers
Write the equation for a parabola with a focus at (6,-4) and a directrix at y= -7
shtirl [24]

Given:

The focus of the parabola is at (6,-4).

Directrix at y=-7.

To find:

The equation of the parabola.

Solution:

The general equation of a parabola is:

y=\dfrac{1}{4p}(x-h)^2+k                  ...(i)

Where, (h,k) is vertex, (h,k+p) is the focus and y=k-p is the directrix.

The focus of the parabola is at (6,-4).

(h,k+p)=(6,-4)

On comparing both sides, we get

h=6

k+p=-4                            ...(ii)

Directrix at y=-7. So,

k-p=-7                            ...(iii)

Adding (ii) and (iii), we get

2k=-11

k=\dfrac{-11}{2}

k=-5.5

Putting k=-5.5 in (ii), we get

-5.5+p=-4

p=-4+5.5

p=1.5

Putting h=6, k=-5.5,p=1.5 in (i), we get

y=\dfrac{1}{4(1.5)}(x-6)^2+(-5.5)

y=\dfrac{1}{6}(x-6)^2-5.5

Therefore, the equation of the parabola is y=\dfrac{1}{6}(x-6)^2-5.5.

4 0
2 years ago
A father is 60 years old just son is half his age how old was the boy when his father was four times his age
gayaneshka [121]

So, what you would have to do is figure out how old he is not which is 30 yrs old because it is half of 60.

So, after this you would have to find a number that would go into 60 four times which is 15.

So, your answer would be 15.


HOPES THIS HELPS!!!!

6 0
3 years ago
Other questions:
  • Find the percent of increase for 4 to 7. round to the nearest tenth if necessary. also someone please explain how to do this.
    14·1 answer
  • Stretch thinking Rewrite this sentence using the word fewer. Carey reads 10more pages than Lucey.
    6·1 answer
  • Complete the statement with &lt;, &gt;, or =.<br> 5/5 ____ 1
    5·1 answer
  • Howdoyouwrite<br> 36/50<br> as a percentage?
    12·1 answer
  • Through: (-1,4), parallel to y=-5x+2
    5·1 answer
  • Simplify the expression.<br> 3\5x + 19 - 3/20x -7
    11·1 answer
  • INTEREST Bianca invested $5000 in an account that pays 5% annual interest.
    8·1 answer
  • HELP PLEASE!!
    13·1 answer
  • Express each as ratio in the simplest form.:
    13·1 answer
  • Please help me find the area of the shape
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!