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MrRa [10]
2 years ago
15

Standard Form: 3x+4y=−16

Mathematics
1 answer:
Gnesinka [82]2 years ago
8 0

Answer:

i know the answer

Step-by-step explanation:

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Cos72cos130+sin72sin130
Setler [38]

Answer:

.5299192646

Step-by-step explanation:

Just plug it in a calculator

3 0
3 years ago
Casey uses some of his savings on batting practice. the cost of renting a batting cage for 1 hour is $6. he rents a cage for 9 h
sammy [17]
It 54 thank you welcome you
5 0
2 years ago
An item is priced at $13.13. If the sales tax is 5%, what does the item cost including sales tax?
V125BC [204]

Answer:

$13.79

Step-by-step explanation:

13.13x0.05=0.6565

Tax=0.66

13.13+0.66=13.79

8 0
2 years ago
The product of $7d^2-3d+g$ and $3d^2+hd-8$ is $21d^4-44d^3-35d^2+14d-16$. What is $g+h$?
galina1969 [7]
<h2>Answer:</h2><h2>g = 2  and h = -5</h2>

Step-by-step explanation:

To find the product with unknown values of variables, multiply the terms and equate the value to the given product.

(7d^{2} - 3d + g)(3d^{2} + hd - 8) = 21d^{4}  + 7hd^{3} - 56d^{2} - 9d^{3} - 3hd^{2} + 24d + 3gd^{2} + ghd - 8g

(7d^{2} - 3d + g)(3d^{2} + hd - 8)     = 21d^{4}  + (7h-9) d^{3} + (3g-56-3h)d^{2}  + (24+gh)d -8g   ... (1)

Comparing eq(1) to the product given in question,

-8g = -1

g = 2

24 + gh = 14, sub g =2,

24 + 2h = 14

h = -5

3 0
3 years ago
Find the percent of discount. Round to nearest tenth.
konstantin123 [22]
Your answer is 31% I believe. 
8 0
3 years ago
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