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Stels [109]
3 years ago
7

Each of the digits 7, 5, 8, 9 and 4 is used only one to form a three digit integer and a two digit integer. If the sum of the in

tegers is 555, how many such pairs of integers can be formed?A. 1B. 2C. 3D. 4E. 5
Mathematics
1 answer:
Advocard [28]3 years ago
7 0

Answer:

B. 2

Step-by-step explanation:

The 1st pair is 457 and 98

457 + 98 = 555

The 2nd pair is 498 and 57

498 + 57 = 555

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Geometry proofs <br> Need help!!
Andrew [12]

Angles ∠MOK and ∠NOL are identical by opposite angle theorem.

∠M = ∠N through given information

∠MKO and ∠NLO are congruent. Since the other two angles of each triangle are equivalent, the last angle must be equivalent to the last angle of the other triangle. (180 - ∠1 -∠2 = ∠3); you could also prove ∠MKO  = ∠NLO by stating that the opposite sides of the two angles are congruent.

ΔMKO and ΔNLO by Angle-Angle-Side theorem

since ΔMKO and ΔNLO, all corresponding parts of both triangles are congruent, so therefore MO ≅ NO

8 0
3 years ago
(3x + 5)º<br> (6x + 13)°
Zigmanuir [339]

Answer: 18x2 + 69x + 65

Step-by-step explanation:

(3x + 5) (~6x + 13)

1. 3x(6x + 13) + 5(6x + 13)

2. 18x2 + 39x + 5(6x + 13)

3. 18x2 + 39x + 30 + 65

4. 18x2 + 69 + 65

6 0
3 years ago
What are the roots of the polynomial equation
rosijanka [135]

Answer:

-4 or -3

Step-by-step explanation:

Calculate the determinant:

D = b^2 - 4ac = 49 - 48 = 1

Apply the formula:

x = (-b +- sqrt(D))/2a = (-7 +- 1)/2 = -4 or -3

7 0
2 years ago
Which equation has a constant of proportionality equal to ?<br> 1/2<br> Choose 1 answer:
katrin [286]

Answer:

C

Step-by-step explanation:

3/6 = 1/2

7 0
3 years ago
helppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
nydimaria [60]
Answer is 0= -2

Yyyyyyyyyyyyyyyyyyyyyyyyyooooooooooooooooooooouuuuuuuuuuuurrrrrrrrrrrrr WELCOME

8 0
2 years ago
Read 2 more answers
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