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Studentka2010 [4]
4 years ago
12

Reina and Sam are multiplying (84)5 (73)9. Reina's Work Sam's Work (84)5 (73)9 = 84 + 573 + 9 = 89712 (84)5 (73)9 = 84⋅573⋅9 = 8

20727 Is either of them correct? Explain your reasoning.
Mathematics
1 answer:
Romashka-Z-Leto [24]4 years ago
4 0
This is a tricky question that Reina and Sam are multiplying (84)5 (73)9and their work are (84)5 (73)9 = 84 + 573 + 9 = 89712    Reina's(84)5 (73)9 = 84⋅573⋅9 = 820727 Sam'sActually they are doing or multiplying using exponents.
Reina’s work (8⁴)₅(7³)⁹=8⁴⁺⁵+ 7³⁺⁹= 8⁹ 7¹²This is incorrect  because she added exponents instead of multiplying exponents
Sams work (8⁴)⁵ (7³)⁹=8⁴ˣ⁵ 7³ˣ⁹= 8²⁰ 7²⁷This is correct  because Sam multiplied exponents correctly
Exponents are multiplied not added.

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Help me plz I need help
galina1969 [7]
Number 4 is D and number 5 is A
8 0
3 years ago
Aaron’s age is three years less than Devon‘s age the sum of their ages is 31 find each of their ages
Goryan [66]
  • Answer:

<em>Aaron 14 years</em>

<em>Devon 17 years</em>

  • Step-by-step explanation:

<em>D = A + 3</em>

<em>D + A = 31</em>

<em>replace D</em>

<em>A + 3 + A = 31</em>

<em>2A = 31 - 3</em>

<em>2A = 28</em>

<em>A = 14 years</em>

<em>D = 17 years</em>

6 0
3 years ago
A rope is tied to the bottom of a hot air balloon ad shown below The rope makes an angle of 35 with the ground and is 75 ft long
damaskus [11]

Answer:

The answer to your question is 43 ft

Step-by-step explanation:

Data

angle = Ф = 35°

length = 75 ft

height = ?

Process

To solve this problem, use trigonometric functions. The trigonometric function that relates the Opposite side (height) and the hypotenuse (length) is sine.

               sin Ф = Height / length

-Solve for height

                height = length x sin Ф

-Substitution

                height = 75 x sin 35

-Simplification

                height = 75 x 0.574

-Result

                 height = 43 ft

6 0
3 years ago
PLEASE HELP ASAP!!!!!!
Rainbow [258]

Answer:

  6/5 units³

Step-by-step explanation:

The volume of the prism is given by the formula

  V = Bh

where B is the area of the "base" and h is the height perpendicular to that base. Filling in the given numbers, you have ...

  V = (9/5)·(2/3) = 18/15 = 6/5 . . . . units³

7 0
4 years ago
What single transformación maps ABC onto ABC ?
Thepotemich [5.8K]

Answer:

a reflection across y-axis then translation of 1 unit right and 2 units up.

a clockwise rotation of 180° about the origin then a translation of 1 unit right and 3 units up

a reflection across y-axis then translation of 1 unit right and 1 unit down

a reflection across y = x then a positive rotation of 270° about the origin

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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