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ValentinkaMS [17]
3 years ago
10

Solve the equation for all values of x: (x+1)^2=-49

Mathematics
1 answer:
Kazeer [188]3 years ago
6 0

Answer:

Values for x = -1 + 7i  and -1 - 7i

Step-by-step explanation:

we have an equation,

(x+1)^2 = -49

We need to solve this equation for all values of x:

(x+1)^2 = - 49

Taking square root both sides

√((x +1)^2) = √-49

x + 1 = ± 7i

Subtract both sides by 1

x = -1 ± 7i

Hence we get two values for x = -1 + 7i  and -1 - 7i

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Answer:

12 ft

Step-by-step explanation:

it's either 12 or 18, I have no idea  :/

5 0
3 years ago
Please help me on this math please
makkiz [27]
1=60
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3=120
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3 years ago
Find the area of the triangle
Misha Larkins [42]

Answer:

=14.69km²

Step-by-step explanation:

We can use the Hero's formula to calculate the area

A= √(s(s-a)(s-b)(s-c))

s is obtained by adding the lengths of the three sides of the triangle and then dividing by 2, a, b and c are the ides of the triangle.

S=(5+6+7)/2

=9

A=√(9(9-6)(9-5)(9-7))

=√(9×3×4×2)

=√216

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8 0
3 years ago
The distance, y, in miles, traveled by a car for a certain amount of time, x, in hours, is shown in the graph below: A graph tit
pashok25 [27]

The best description of the car's motion as shown in the graph is: A. It travels for 1 hour, then stops for 1 hour, and finally travels again for 3 hours.

<h3>How to Analyze a Distance-Time Graph?</h3>

In a distance-time graph, an horizontal line implies no distance was covered within that time frame, meaning there was a stop.

Thus, in the graph given, the stop occurred 1 and 2, which is equivalent to an hour. From 2 to 5 on the x-axis means there was movement for up to 3 hours.

Therefore, the best description is: A. It travels for 1 hour, then stops for 1 hour, and finally travels again for 3 hours.

Learn more about distance-time graph on:

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2 years ago
Find the values of the falowing 9!9!/10!7!
Alchen [17]

Answer:

Step-by-step explanation:

9! * 9!                / 10! * 7!

131681894400 / 18289152000 = 7.2

6 0
3 years ago
Read 2 more answers
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