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solmaris [256]
4 years ago
15

Evaluate the expression for x = 3 and y = 6. 5(x2 + y) + y2

Mathematics
2 answers:
kakasveta [241]4 years ago
8 0
5 (3*2+6) +6*2

Do parenthesis first

5 ( 12 ) + 6 * 2

multiply from left to right

60 + 12

add

72
cupoosta [38]4 years ago
8 0
5(3x2 + 6) + 6x2
5(6 + 6) + 6x2
5 x 12 + 6x2
60 + 12
72
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Which of these rational numbers is also an integer?
dexar [7]

Answer:

6/3

Step-by-step explanation:

An integer is a whole number, that is not a fraction. All of the numbers are fractions, but if you simplify them, you see that 6/3=2. 2 is a whole number, and therefore an integer.

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6 0
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Greatest common factor for 32-4x
Anastasy [175]

Answer:

 

4

out of  

32

−

4

x

.

4

(

8

−

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Step-by-step explanation:

8 0
3 years ago
Donis bought a t-shirt for $15 and jeans for $35.50. If the sales tax rate is 8.25%. What is the sales tax for the t-shirt and j
SOVA2 [1]
<h3>Answer: 4 dollars and 17 cents</h3><h3>This is the same as saying $4.17</h3>

====================================================

Explanation:

15+35.50 = 50.50 dollars is the total before tax is applied.

Take 8.25% of this to get

0.0825*50.50 = 4.16625

and this rounds to 4.17, which is the amount of sales tax charged.

$4.17 = 4 dollars + 17 cents

---------

Extra info:

The grand total will be 50.50+4.17 = 54.67

Another way to get the grand total is to multiply 1.0825 by the previous subtotal (50.50) getting 50.50*1.0825 = 54.66625 and that rounds to 54.67

The multiplier 1.0825 effectively means "increase by 8.25%"

6 0
4 years ago
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