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lions [1.4K]
3 years ago
6

Amit and Tiana simplified the expression -4 [8 + (-6) +3] in different ways Amit`s first step was to add the three numbers withi

n the brackets. Tiana`s first step was to multiply each of the number within the brackets by -4. Part A:- Write an expression to represent Tiana`s first step. In the expresssion,show which numbers are being multiplied together,but don`t find each of the products. Part B:- What should Tiana have writtern as the product when she multiplied -6 by -4.
Mathematics
1 answer:
zepelin [54]3 years ago
3 0
Part A: <u>(8 × (-4))</u>  <u>(-6 × (-4))</u>  <u>(3 × (-4))</u>

Part B: -6 × -4 = 24. So when multiplying -6 by -4, the product should be <u>24</u>

But basically, Tiana's way of solving this question is correct while Amit's is incorrect.And this is because Amit is using PEMDAS, unlike Tiana.
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Please help especially with a!!
77julia77 [94]

Answer:

a) 25/324

b) 1/4

c) 1/3

Step-by-step explanation:

a) [⅓A + ⅓B]² = (⅓)²[A + B]²

= (1/9) [½ + ⅓]²

= (1/9)(⅚)²

= (1/9)(25/36)

= 25/324

b) ½ × ½ = ¼

c) (½ × ⅓) + (⅓ × ½) = 2 × ⅙ = ⅓

6 0
3 years ago
If rolando earned $28.50 in 2 hours, how much would he earn in 8 hours?
cricket20 [7]

First, we need to find his unit rate, the amount he earns in 1 hour.

So, we have to divide 28.50 by 2.

That is:

28.50 / 2 = $14.25 per hour

To find the amount he earns in 8 hours, we will need to multiply hourly rate found by "8". So,

14.25 * 8 = $114

<h2>Rolando earns $114 in 8 hours</h2>

5 0
2 years ago
Simplify the following expression:<br> Sqrt (-16) + sqrt(-25+5)
Studentka2010 [4]

Answer:

(4 + 2√5) i

Step-by-step explanation:

√(-16) + √(-25 + 5)

√(-16) + √(-20)

4i + 2i√5

(4 + 2√5) i

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3 years ago
Translate to an algebraic expression.<br> The sum of a and n.<br> The translation is
aksik [14]
The translation of the sum a and n is a+n
5 0
2 years ago
Read 2 more answers
Which wind belt starts at the horse latitudes and moves toward the poles?
kvasek [131]

Answer:

The prevailing westerlies.

Step-by-step explanation:

The prevailing westerlies are found between 30 (horse latitudes) and 60 degrees latitude. They come from the high-pressure areas in the horse latitudes and go towards the poles.

4 0
4 years ago
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