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
dolphi86 [110]
3 years ago
7

7. The measures of the angles in a triangle are in the extended ratio of 3:4:5. Find the

Mathematics
1 answer:
Mashcka [7]3 years ago
6 0

Answer:

Below.

Step-by-step explanation:

Angle 1 = (3/(3+4+5) * 180 = 3/12 * 180

= 45 degrees.

Angle 2 = 4/12 * 180 = 60 degrees.

Angle 3 = 5/12 * 180 = 75 degrees.

You might be interested in
Which points lie on the line whose equation is 8x - 2y + 7 = -9? Select all that apply.
Anestetic [448]

Answer:

A.(-2, 0)

C. (-1.4)

Step-by-step explanation:

we know that

If a point lie on the line, then the point must satisfy the equation of the line (makes the equation true)

we have

8x-2y+7=-9

subtract 7 both sides

8x-2y=-9-7

8x-2y=-16

divide by 2 both sides

4x-y=-8

Substitute the value of x and the value of y of each point in the linear equation and analyze the result

<u><em>Verify each point</em></u>

case A) we have

(-2, 0)

For x=-2, y=0

substitute

4(-2)-(0)=-8

-8=-8 ---> is true

so

the point lie on the line

case B) we have

(1, 3)

For x=1, y=3

substitute

4(1)-(3)=-8

1=-8 ---> is not true

so

the point not lie on the line

case C) we have

(-1, 4)

For x=-1, y=4

substitute

4(-1)-(4)=-8

-8=-8 ---> is true

so

the point lie on the line

case D) we have

(1, -4)

For x=1, y=-4

substitute

4(1)-(-4)=-8

8=-8 ---> is not true

so

the point not lie on the line

case E) we have

(0, -1)

For x=0, y=-1

substitute

4(0)-(-1)=-8

1=-8 ---> is not true

so

the point not lie on the line

7 0
3 years ago
Karen paid $43.70 for a book. The price of the book was $40. What was the sales tax rate?
dimaraw [331]
Price before tax = $40

Price after tax = $43.70

Sales Tax = $43.70 = $40 = $3.70

Sales Tax Rate = 3.70/40 x 100 = 9.25%

Answer: 9.25%
3 0
4 years ago
A tower made of wooden blocks measures​ 114 feet high. Then a block is added that increases the height of the tower by 8 inches.
satela [25.4K]

Answer:

4. 23 in

Step-by-step explanation:

The tower is 1 1/4 feet high, then 8 inches are added. Well, we can't just add those two numbers. We have to change the units! Change everything to inches.

1 1/4 feet is equal to 12 inches + 3 inches = 15 inches, because a foot = 12 inches.

Add 8 inches to 15, and you get 23 inches.

<u>The answer is 4. 23 in. </u>

4 0
4 years ago
3^2 x 3^x =3^7 find the value of x
d1i1m1o1n [39]

3^2 • 3^x=3^(2+x)

3^(2+x)=3^7

=> 2+x=7

x=5

3 0
4 years ago
Read 2 more answers
WILL GIVE BRAINLIEST!! Show Work
kozerog [31]

Answer:

x= - 4

x=1

x=1

x= -1

x=7

x= -42

x=5

4 0
3 years ago
Other questions:
  • I NEEED HELP ASAAAAAP!! PLEASE PLEASE PLEASEEEEE :( :(I NEEED IT TODAY!!!
    10·1 answer
  • a regular box of cookies measures 8 inches times 4 inches times 3 inches. the deluxe box of cookies is three times as big. what
    6·1 answer
  • Find an for the arithmetic series with s16 = -288 And a1 =-21
    12·1 answer
  • Segment CD is congruent to segment DF, E bisects DF, and CD=14.2. Find EF
    7·1 answer
  • Put 80 and 70 in a ratio
    12·1 answer
  • This rectangular patio is tiled using 50 cm by 50 cm square tiles. How many tiles are used?
    10·2 answers
  • Nicholas bought three business related books. His total bill was $150. If one book cost him 50% more than the other two books co
    9·1 answer
  • 2.
    11·1 answer
  • Simplify the expression e3 x e9
    12·1 answer
  • What number would be ten times greater than 0.05?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!