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3 years ago

A book costs $45. Sales tax on the book is 7% which expression represents the final cost of the book in dollars

Mathematics

2 answers:

EleoNora [17]3 years ago

8 0

The answer is D.

You have to find the sales tax (.07) and the cost of the book (1.00)

baherus [9]3 years ago

7 0

Answer:

Step-by-step explanation:

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Find the value of the greater root of x2 + 10x + 24 = 0.

Wittaler [7]

The answer is x = -17

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3 years ago

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32/34 Marks<br> Show that 155 can be expressed as the sum of a power of 2<br> and a cube number.

saul85 [17]

Answer:

$155 = {2}^{7} + {3}^{3}$

Step-by-step explanation:

$\because \: 155 = 128 + 27 \\ 128 = {2}^{7} \: \: and \: \: {3}^{3} \\ \\ \huge \red{ \boxed{ \therefore \: 155 = {2}^{7} + {3}^{3} }}$

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3 years ago

How many radians is 72°

stellarik [79]

Answer: 1.25664 or if you want in fraction form it's 2π/5

Step-by-step explanation:

To convert degrees to radians, multiply by π /180°

72° ⋅ π/180° = 72π/180 = 2π/5

Therefor, the answer is 2π/ 5 or in decimal form 1.25664.

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4 years ago

Which expression equals 9^3 sqrt 10

irinina [24]

Answer:

Option B is correct.

$5\sqrt[3]{10} + 4\sqrt[3]{10}$

Step-by-step explanation:

Given the equation: $9\sqrt[3]{10}$

We can write 9 as:

9 = 5+ 4

then;

$(5+4)\sqrt[3]{10}$

Using distributive property:

$a\cdot(b+c)= a\cdot b+ a\cdot c$

Apply distributive property:

$5\sqrt[3]{10} + 4\sqrt[3]{10}$

Therefore, the expression which is equivalent to $9\sqrt[3]{10}$ is $5\sqrt[3]{10} + 4\sqrt[3]{10}$

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3 years ago

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Hannah but 3.4 pounds of apples she paid $.89 per pound how much did Hana pay for apples

Irina18 [472]

Answer:

3.026 $

Step-by-step explanation:

3.4 × 0.89 = 3.026 $

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