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AlexFokin [52]
3 years ago
10

NEED AS SOON AS POSSIBLE

Mathematics
1 answer:
ss7ja [257]3 years ago
5 0
This is 16+85 i know it is becaout
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The sales tax for an item was $6.40 and it cost $320 before tax.
vlabodo [156]

Answer:

2%

Step-by-step explanation:

Find the sales tax rate by dividing the amount of sales tax by the original cost:

6.40/320

= 0.02

So, the sales tax rate is 2%

3 0
2 years ago
Awnser of 7n-2=6n-2n
Nady [450]
7n-2=6n-2n \\
6n-2n-7n=-2\\
-3n=-2\\
n=\dfrac{2}{3}
3 0
3 years ago
It would be so greatly appreciated if you could help me with my geometry work!!!!
Zolol [24]

Answer:

m<BCA+m<BCD=180

Step-by-step explanation:

supplementary means that the angle measures add up to 180°, if you are using the definition of supplementary angles AND you have had a statement saying that two angles are supplementary, ALWAYS follow it with the sum of the measures of those angles equal 180 :)


4 0
3 years ago
A book has a volume of 8cm and and mass of 24 grams.what is its density
kondor19780726 [428]
The density of the book is 3cm
6 0
3 years ago
Which of the following correctly expresses sin (70) + sin(30) as a product?
JulsSmile [24]

Answer:

2sin50 cos20

Step-by-step explanation:

We need to write sin (70) + sin(30) as a product. The formula used here is :

\sin A+\sin B=2\sin (\dfrac{A+B}{2})\cos(\dfrac{a-b}{2})

Here, A = 70 and B = 30

So,

\sin 70+\sin 30=2\sin (\dfrac{70+30}{2})\cos(\dfrac{70-30}{2})\\\\\sin 70+\sin 30=2\sin 50\cos20

So, the value of sin (70) + sin(30) is 2sin50 cos20. Hence, the correct option is  (c).

7 0
3 years ago
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