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Marat540 [252]
2 years ago
7

Solve for t. You must write your answer in fully simplified form. −19= 7t

Mathematics
1 answer:
Olenka [21]2 years ago
8 0

Answer: dot know srry

Step-by-step explanation:

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The slope is undefined

Step-by-step explanation:

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Find the solution of the system of equations.
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the answer is Solve for the first variable in one of the equations, then substitute the result into the other equation.

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(−17/2, -7)

Equation Form:x=-17/2 y=-7

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The more experiments that are performed, the closer the experimental probability gets to the theoretical probability: true or fa
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2 years ago
Item 11
marysya [2.9K]

Answer:

4 ft higher

Step-by-step explanation:

Since the ladder is 10 ft long and its top is 6 feet high(above the ground), we find the distance of its base from the wall since these three (the ladder, wall and ground) form a right angled triangle. Let d be the distance from the wall to the ladder.

So, by Pythagoras' theorem,

10² = 6² + d²  (the length of the ladder is the hypotenuse side)

d² = 10² - 6²

d² = 100 - 36

d² = 64

d = √64

d = 8 ft

Since the ladder is moved so that the base of the ladder travels toward the wall twice the distance that the top of the ladder moves up.

Now, let x be the distance the top of the ladder is moved, the new height of top of the ladder is 6 + x. Since the base moves twice the distance the top of the ladder moves up, the new distance for our base is 8 - 2x(It reduces since it gets closer to the wall).

Now, applying Pythagoras' theorem to the ladder with these new lengths, we have

10² = (6 + x)² + (8 - 2x)²

Expanding the brackets, we have

100 = 36 + 12x + x² + 64 - 32x + 4x²

collecting like terms, we have

100 = 4x² + x² + 12x - 32x + 64 + 36

100 = 5x² - 20x + 100

Subtracting 100 from both sides, we have

100 - 100 = 5x² - 20x + 100 - 100

5x² - 20x = 0

Factorizing, we have

5x(x - 4) = 0

5x = 0 or x - 4 = 0

x = 0 or x = 4

The top of the ladder is thus 4 ft higher

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3 years ago
Find the missing lengths. leave your answers as radicals in simplest form
LiRa [457]

Check the picture below.

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2 years ago
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