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kakasveta [241]
3 years ago
7

12

Mathematics
1 answer:
Slav-nsk [51]3 years ago
3 0

Triangles ABC and DEF may or may not be congruent, because the angle-angle-angle (AAA) postulate is not a criterion for congruency of any two triangles. This is because the angle-angle-angle postulate only incorporates the angles of the triangles, and the side lengths are not specified, so congruency may or may not be true for these triangles.

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The circumference of a circle is 19π in. What is the area, in square inches? Express your answer in terms of π.
Lelu [443]

Answer:

A = 90.25 pi in^2

Step-by-step explanation:

The circumference is given by

C = 2*pi*r

19pi = 2*pi*r

Divide each side by 2 pi

19pi / 2 pi = 2*pi*r/ 2pi

9.5 = r

The area is given by

A = pi r^2

A = pi ( 9.5)^2

A = 90.25 pi in^2

8 0
3 years ago
Read 2 more answers
Solve;
Brrunno [24]

6446(7546/6799/)85456=gljdhsshdjkhk ghjvf 146

8 0
3 years ago
a formula that can be determined A, the amount in an account that earns simple interest, where P is the principal, r is the annu
Sergio039 [100]

Answer:

A = P(1 + rt)

Step-by-step explanation:

The principal of the amount P is deposited in an account that earns simple interest.

The interest that the account earns is r annual interest rate expressed as a decimal.

The principal P is invested for t years.

Therefore, the matured amount A will be given by  

A = P(1 + rt)

Hence, this is the formula that can calculate the A if P, r and t are known. (Answer)

8 0
3 years ago
I need help on this math
zubka84 [21]
Area = 20x5=100
Perimeter = 10+10+20+20=60
7 0
3 years ago
Which expression is equivalent to i 233?<br> 1<br> –1<br> i<br> –i
worty [1.4K]

Step-by-step explanation:

i¹ = i

i² = i×i = -1

i³ = -1 × i = -i

i⁴ = -i×i = - -1 = 1

i⁵ = 1×i = i

...

so, when the exponent of i modulo 4 (the remainder when dividing by 4) = 0, then the result is 1.

= 1, then the result is i

= 2, then the result is -1

= 3, then the result is -i

233 modulo 4 = 1 (233/4 = 58, remainder 1).

so, the result is i (the third answer option).

7 0
2 years ago
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