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
Doss [256]
4 years ago
11

The radius of a circle is 7x+3 cm. Write an expression to represent the area of the circle in simplified form.

Mathematics
2 answers:
Delvig [45]4 years ago
8 0
Π(7x+3)²
π(7x+3)(7x+3)
π(49x²+21x+21x+9)
π(49x²+42x+9)
Firdavs [7]4 years ago
6 0
Just plug in and simplify

You might be interested in
Help with this pleaseeee​
ELEN [110]

Answer:

(- 3, 37) and (- \frac{5}{2}, \frac{63}{2} )

Step-by-step explanation:

Given the 2 equations

2x² - y + 19 = 0 → (1)

y + 11x = 4 → (2) ← subtract 11x from both sides

y = 4 - 11x → (3)

Substitute y = 4 - 11x into (1)

2x² - (4 - 11x) + 19 = 0

2x² - 4 + 11x + 19 = 0

2x² + 11x + 15 = 0 ← in standard form

(2x + 5)(x + 3) = 0 ← in factored form

Equate each factor to zero and solve for x

2x + 5 = 0 ⇒ 2x = - 5 ⇒ x = - \frac{5}{2}

x + 3 = 0 ⇒ x = - 3

Substitute these values into (3) for corresponding values of y

x = - \frac{5}{2} : y = 4 + \frac{55}{2} = \frac{63}{2} ⇒ (- \frac{5}{2}, \frac{63}{2} )

x = - 3 : y = 4 + 33 = 37 ⇒ (- 3, 37 )

4 0
3 years ago
Complete the equation of the line through (−10,3) and (-8,-8)
yawa3891 [41]

Answer: y = (-11/2)x -52

Aka y=mx*b

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Find the value of x..........
Leviafan [203]

Answer:

x = 53.5

Step-by-step explanation:

x is one half the difference of the intercepted arcs, that is

x = 0.5(137 - 30) = 0.5 × 107 = 53.5

8 0
3 years ago
-6 (p + 8) = -35 + 7p
Novosadov [1.4K]

Answer:

p = −1

Step-by-step explanation:

1. Regroup terms.

−6 (p + 8) = 7p − 35

2. Expand.

−6p − 48 = 7p − 35

3. Add 6p to both sides.

−48 = 7p − 35 + 6p

4. Simplify 7p − 35 + 6p to 13p −35.

−48 = 13p − 35

5. Add 35 to both sides.

−48 + 35 = 13p

6. Simplify −48 + 35 to −13.

−13 = 13p

7. Divide both sides by 13.

−1 = p

8. Switch sides.

p = −1

3 0
3 years ago
Please help i dont get itttttt
Law Incorporation [45]
The answer is 9.3 or 9 over 3 meaning going up 9 and over 3 leaving this to be an isosceles acute triangle
7 0
3 years ago
Other questions:
  • PLS HELP IM DESPARATE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    7·2 answers
  • Math question:<br> solve for x.<br> -7.8(x + 6.5) = -25.74
    6·1 answer
  • 8 mi. 133 yd. 2 ft. + 5 mi 107 yd. 2 ft.
    10·1 answer
  • Milk is being poured into a cylindrical pail at a constant rate of 8 cubic inches per second. The pail has a base radius of 5 in
    12·1 answer
  • Solvex2 - 64 = 0.
    12·1 answer
  • BRAINLIEST!
    6·2 answers
  • Choose the statistical question. * please help now
    13·1 answer
  • 3
    12·1 answer
  • the radius of a circle is 5 meter what is the area,in square meter,of circle? Round to the nearest tenth
    15·2 answers
  • The Pythagorean theorem can only be used with witch type of triangle
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!