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algol13
3 years ago
9

Analyze the table showing the number of days and cost of the trip.

Mathematics
1 answer:
balandron [24]3 years ago
3 0

Answer:

The answer is 25

Step-by-step explanation:

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Please help quickly for 5 stars and brainliest!!
alexandr402 [8]
1.
Height h = 240 feet
We insert it into formula.
240 = -16 t^{2} +128t
Now we solve this for t:
16 t^{2} -128t +240 = 0 /16  \\  t^{2}  - 8t +15 =0 \\ t_{1} = 5 t_{2} = 3

We have two answers as the rocket will pass this height on it's way up and down.

2.
Height h = 0 feet
We insert it into formula.
0=-16 t^{2} +76t + 2
Now we solve this for t:
16 t^{2} - 76t -2 = 0 /2 \\ 8t^{2} - 38t - 1 = 0 \\ t_{1} = 5 t_{2} = -1
We do not consider solution -1 as the time can not be negative. Our solution is 5s.

3.
Height at bottom of hill h = 0 feet
We insert it into formula.
v^{2} = 64 * 0 = 0 ft/s
7 0
4 years ago
Determine if the expressions are equivalent: 7+ 7x; 7 x + 1/7
patriot [66]

<u>The given  expressions  7+ 7x ; 7 x + 1/7 are not equivalent or equal </u>

<u>to each other </u>

<u />

<u>Step-by-step explanation:</u>

Let us firstly assume that  7 + 7x is equivalent ( to 7(x + 1/7) so that means

7 + 7x = 7(x + 1/7)

7 + 7x = 7x + 7(1/7)

7 + 7x = 7x + 1

7x + 7 = 7x + 1

Now, subtracting 7x from both sides, we get:

7x - 7x + 7 = 7x - 7x + 1

(7 - 7)x + 7 = (7 - 7)x + 1

(0)x + 7 = (0)x + 1   thus their occurs a  false statement:

7 = 1 ( we know, 7 >1)

Thus we can say that

<u>7 + 7x is NOT equivalent  to 7(x + 1/7)</u>

5 0
3 years ago
I need someone to check and help me. Check the ones that are answered. The ones with ? (question marks) please help me and the N
V125BC [204]
All of the answer is in the picture

4 0
3 years ago
Aubrey and her cousins plan to all chip in to get their grandmother a $530
erik [133]
You should start on April 1, because if you want to get it for her for Christmas. you can divide $530 by $60. April to december is 8 months, hope i help
8 0
3 years ago
Read 2 more answers
20 points . Find the geometric mean of 5/4 and 80
mrs_skeptik [129]

Answer:

3.636478334

Step-by-step explanation:

6 0
3 years ago
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