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beks73 [17]
3 years ago
6

2

Mathematics
1 answer:
Elan Coil [88]3 years ago
5 0

Answer: Initial height before launch

Step-by-step explanation:

Given

The equation y=-9.8t+109.7t+7.4  the height of toy rocket after t sec

when the rocket is launched, time is t=0

Substituting 0 for t in the equation

\Rightarrow y(0)=-9.8(0)+109.7(0)+7.4\\\Rightarrow y(0)=7.4

Here, 7.4 represents that rocket is already at a height of 7.4 m before the launch.

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Find the distance between the points. Give an exact answer and an approximation to three decimal places.
Nimfa-mama [501]

Answer:

The distance between the points is d=2\sqrt{5}\ units   or d=4.472\ units  

Step-by-step explanation:

we know that

the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

we have

(7,-3)\\(5,1)  

substitute the values

d=\sqrt{(1+3)^{2}+(5-7)^{2}}

d=\sqrt{(4)^{2}+(-2)^{2}}

d=\sqrt{20}\ units

d=2\sqrt{5}\ units  ----> exact answer

d=4.472\ units  -----> approximation to three decimal places

8 0
3 years ago
Solve <br> -12 + 23<br><br> A. -35<br><br> B. -11<br><br> C. 11<br><br> D. 35
WINSTONCH [101]

Answer:

C. 11

Step-by-step explanation:

This can be rewritten as

23 - 12

This is equal to 11.

5 0
2 years ago
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spayn [35]
The answer would be -2 i think!!
6 0
3 years ago
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What is the slope-intercept form of the equation of a line that passes through (1,-6) with a slope of 5?
Ymorist [56]

Answer:

y - y1 = m(x - x1)

y + 6 = 5 (x - 1)

y + 6 = 5x - 5

y = 5x - 5 - 6

y = 5x -11

y = mx + b

Slope intercept b = -11

8 0
2 years ago
Find m2WXY<br> 59<br> X<br> D<br> 24°<br> A 250<br> B. 26<br> C. 81<br> D. 839
barxatty [35]

Answer: d. 83

Step-by-step explanation: 59+ 24 = 83

8 0
2 years ago
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