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
andrey2020 [161]
2 years ago
12

The radius of a circle is 4 feet. What is the area?

Mathematics
1 answer:
ANEK [815]2 years ago
3 0
Abswer is here

100.571429
You might be interested in
You are given the parametric equations x=2cos(θ),y=sin(2θ). (a) List all of the points (x,y) where the tangent line is horizonta
vladimir1956 [14]

Answer:

The solutions listed from the smallest to the greatest are:

x:  -\sqrt{2}   -\sqrt{2}  \sqrt{2}  \sqrt{2}

y:      -1         1     -1     1

Step-by-step explanation:

The slope of the tangent line at a point of the curve is:

m = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }

m = -\frac{\cos 2\theta}{\sin \theta}

The tangent line is horizontal when m = 0. Then:

\cos 2\theta = 0

2\theta = \cos^{-1}0

\theta = \frac{1}{2}\cdot \cos^{-1} 0

\theta = \frac{1}{2}\cdot \left(\frac{\pi}{2}+i\cdot \pi \right), for all i \in \mathbb{N}_{O}

\theta = \frac{\pi}{4} + i\cdot \frac{\pi}{2}, for all i \in \mathbb{N}_{O}

The first four solutions are:

x:   \sqrt{2}   -\sqrt{2}  -\sqrt{2}  \sqrt{2}

y:     1        -1        1     -1

The solutions listed from the smallest to the greatest are:

x:  -\sqrt{2}   -\sqrt{2}  \sqrt{2}  \sqrt{2}

y:      -1         1     -1     1

6 0
2 years ago
A stack of 6 bricks is 2 feet high. How high is a stack of 20 bricks?
Korolek [52]
60.

The question gives you the fact that 6 bricks is 2 feet high.

What do you do to get from 2 to 20?
You multiply by 10.

Since you multiplied one thing by 10, you must do it to the other side so it remains balanced.

2 ft x 10ft = 20ft

6 bricks x 10 bricks = 60 bricks
8 0
3 years ago
What is the area of the figure? The diagram is not drawn to scale.
Veronika [31]
The picture in the attached figure

we know that
the figure is a parallelogram 
the area of parallelogram=base*height
in this problem
base=34 in
height=35 in
so
area=34*35----> area=1190 in²

the answer is
<span>A. 1,190 in^2</span>

4 0
3 years ago
The difference between two numbers is 42 five times the smaller is equal to 6 more than the larger
frosja888 [35]
X- smaller number
y- larger number
5x=6+y
8 0
3 years ago
The side of triangle ABC are ab=5cm, bc=6cm and ac=7.5cm.draw the triangle
Anna11 [10]

Answer:your cute

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • If r is ten more than the square root of l , then r = A) l2 + 10 B) (l + 10)2 C) l + 10 D) l + 10 E) l + 10
    11·1 answer
  • Suppose 90 out of 120 people said they like to work out and 5 out of every 18 of the people who like to work out have a gym memb
    7·1 answer
  • What is the value of x in 40,000 mg = 10x g? Please answer quick!
    8·1 answer
  • 2 percent of the value of $150,000
    6·1 answer
  • 5 times what equals 200
    11·2 answers
  • Calculate the area of the shape​
    7·2 answers
  • Evaluate 3z when z =9
    11·2 answers
  • Meliza has 43 toy soldiers.She lines them up in rows of 5 to fight imaginary zombies.How many of these rows can he make?
    12·2 answers
  • Yal my someone please help me with this, its teh last thing i have to do<br> tysm
    10·1 answer
  • Solve for x 64^x^2 = 256^x
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!