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aev [14]
3 years ago
13

Kristi had $7.00 when she went to the store. When she got back, she had $2.36. How much did she spend?

Mathematics
1 answer:
Ilya [14]3 years ago
6 0

Answer:

A: $4.64

B: About 34%

Step-by-step explanation:

A: Subtract 7-2.36

B: 2.36(100)= 236

236/7 =33.714285

Then estimate

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Match the expression to its value.​
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Answer:

1       a

2      b

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Step-by-step explanation:

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alina1380 [7]
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If neither a nor b are equal to zero, which answer most accurately describes the product of (a + bi)(a - bi)?
Scrat [10]

Answer:  the correct option is

(D) The imaginary part is zero.

Step-by-step explanation:  Given that neither a nor b are  equal to zero.

We are to select the correct statement that accurately describes the following product :

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We will be using the following formula :

(x+y)(x-y)=x^2-y^2.

From product (i), we get

P\\\\=(a+bi)(a-bi)\\\\=a^2-(bi)^2\\\\=a^2-b^2i^2\\\\=a^2-b^2\times (-1)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~[\textup{since }i^2=-1]\\\\=a^2+b^2.

So, there is no imaginary part in the given product.

Thus, the correct option is

(D) The imaginary part is zero.

3 0
2 years ago
Solve for x. 7x - 3/8 = 6x - 5/8
Mnenie [13.5K]
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8 0
2 years ago
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Naddik [55]

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4 0
3 years ago
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