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Bess [88]
3 years ago
13

Estimate the area of the circle use 22/7 (fraction) as pie

Mathematics
1 answer:
tino4ka555 [31]3 years ago
4 0
The area of a circle is pi*r^2
22/7*14^2=<span>616
The answer is 616 cm^2
</span>
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Solve triangle ABC if a=10, b= 11, c=17
Svet_ta [14]

Answer:

38

Step-by-step explanation:

it is quite simple so try to solve it

3 0
2 years ago
The diameter of a circle is 9 ft. Find its area to the nearest tenth.
Drupady [299]

Step-by-step explanation:

D=9

A=pie*radius^2

=3.14*9/2*9/2

=63.58

=64

6 0
3 years ago
Read 2 more answers
What is b in terms of a and c?
aev [14]

Answer:

b=\sqrt{c^2-a^2}

Step-by-step explanation:

The given relation is

c=\sqrt{a^2+b^2}

To make b the subject, we square both sides of the equation to get;

c^2=(\sqrt{a^2+b^2})^2

c^2=a^2+b^2

Isolate b on one side of the equation;

c^2-a^2=b^2

Or

b^2=c^2-a^2

We take the positive square root of both sides to get;

b=\sqrt{c^2-a^2}

6 0
3 years ago
Solve the system of equations. y = 2x y = x 2 – 15
inn [45]

Answer:

D. (–3, –6) and (5, 10)

Step-by-step explanation:

The system has equations:

y=2x...(1)

and

y=x^2-15...(2)

Equate both equations;

x^2-15=2x

Rewrite in standard form:

x^2-2x-15=0

We factor to obtain:

(x+3)(x-5)=0

By the zero product principle;

(x+3)=0,(x-5)=0

\implies x=-3,x=5

When x=-3, y=2(-3)=-6

This yields the ordered pair (-3,-6).

When x=5, y=2(5)=10

This yields the ordered pair (5,10).

The correct choice is D.

8 0
3 years ago
X=8<br> f(x)=|x|<br> f(8)=?<br><br>help me please?
Varvara68 [4.7K]
Is there not more to this problem? maybe thats the final answers
4 0
3 years ago
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