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yan [13]
3 years ago
6

The speed of a Dragonfly is 6.974

Mathematics
1 answer:
Mashcka [7]3 years ago
7 0
He is not correct, any number 5 or greater rounds the number up. 
The speed of the dragonfly would be 7 because 7 rounds 9 to 10 making 6 a 7.
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Given that f(x) = 2x + 5 and g(x) = x − 7, solve for f(g(x)) when x = −3.
WITCHER [35]
G(-3) = -3-7 = -10;
f(g(-3))=f(-10) = 2 x (-10) + 5 = - 20 + 5 = -15.
6 0
3 years ago
Simplify:<br> 2x²(4x³-3x²+6x)
eimsori [14]
Answer
8x^3 - 6x^4 + 12x^3
4 0
3 years ago
Read 2 more answers
Darin can purchase tile at a store for 0.79 per tile and rent a tile saw for $24. At another store, he can borrow the tile saw f
ankoles [38]
Let us denote the number of tiles by T.

In the first store, if Darin bought T tiles, he would need to spend:
                        0.79\times T+24 (measured in $)

In the second store, if Darin bought T tiles, he would need to spend:
                        1.19\times T (measured in $)

For the cost to be the same at both stores, it means (measured in $)
                                           1.19T=0.79T+24

Moving 0.79T over to the left hand side and changing signs:
                                            1.19T-0.79T=24
                                            0.4T=24
                                            T= \frac{24}{0.4}
                                            T=60 tiles

Let's check. If he buys 60 tiles in the first store, he spends:
                              $0.79×60 + $24 = $47.40 + $24 = $71.40

If he buys 60 tiles in the second store, he spends:
                                               $1.19×60 = $71.40

∴ Darin needs to buy 60 tiles for the cost to be the same at both stores.
7 0
3 years ago
= X<br> 20<br> 100<br> 60<br><br> Please help me
satela [25.4K]

Answer:

x = 100

Step-by-step explanation:

(100-40)/2

= 60/2

= 30

So it's 100

Answered by GAUTHMATH

5 0
2 years ago
Express the following as a pecentage:16 out of 40
Irina-Kira [14]

the answer is 40 percent

6 0
3 years ago
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