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blsea [12.9K]
3 years ago
11

Helppppppppppppppppppppppp

Mathematics
1 answer:
Kipish [7]3 years ago
4 0
Irrational. A square root can not be negative therefore it is irrational.
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Find the area of the shaded regions. Give your answer as a completely simplified
Pavel [41]

The area of the shaded region is 40π/3 square cm if the radius of the small circle r is 3 cm and the radius of the large circle R is 7 cm.

<h3>What is a circle?</h3>

It is described as a set of points, where each point is at the same distance from a fixed point (called the center of a circle)

We have a circle in which the shaded region is shown.

The radius of the small circle r = 3 cm

The radius of the large circle R = 3+4 = 7 cm

The area of the shaded region:

= area of the large circle sector - an area of the small circle sector

                                                     

= (120/360)[π7²] - (120/360)[π3²]

= 49π/3 - 3π

= 40π/3 square cm or

= 13.34π square cm

Thus, the area of the shaded region is 40π/3 square cm if the radius of the small circle r is 3 cm and the radius of the large circle R is 7 cm.

Learn more about circle here:

brainly.com/question/11833983

#SPJ1

5 0
2 years ago
The ratio between the number of children (c) on a field trip and number of teachers (t) on the trips is 14/3. There are 70 child
Mrrafil [7]
For this case we have a relationship of the form:
 c / t = 14/3&#10;
 There are 70 children on the field trip
 Therefore, we must replace the value of c = 70 in the equation.
 We have then:
 70 / t = 14/3&#10;
 Clearing t, we have:
 t = (3/14) * (70)&#10;&#10;t = 15
 Answer:
 
there are 15 teachers on the trip
3 0
4 years ago
A • 1 = a
victus00 [196]
This represents the identity property.
6 0
3 years ago
Andrew is working for his mother's company this summer. He gets paid $0.31 for every 4 words he types. If he wants to earn $175
mestny [16]

Answer:

2,258

Step-by-step explanation:

4 words = $0.31

\frac{4}{0.31} = \frac{x}{175}

cross multiple and solve for x

0.31x = (175)(4)

x = about 2,258

4 0
3 years ago
Which expression is equivalent to (64 y Superscript 100 Baseline) Superscript one-half?
Alex_Xolod [135]

Answer:

8y^{50}

Step-by-step explanation:

This expression is equal :

{(64y^{100})}^{\frac{1}{2}}

Here we can use this rule :

(a^mb^n)^y=a^{my}b^{ny}

Now, 64 we can write like : 8^2

(8^2y^{100})^{\frac{1}{2}}

Now we can use our rule :

8^{2*\frac{1}{2}}y^{100*\frac{1}{2}

When we simplify, we have :

8y^{50}

6 0
4 years ago
Read 2 more answers
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