Solve the solution to the equation -2x+1=9 step by step

Answers

Answer 1

Answer: -2x + 1 = 9

Add 2x to each side of the equation:

1 = 2x + 9

Subtract 9 from each side:

-8 = 2x

Divide each side by 2 :

-4 = x

Answer 2

Answer: $-2x+1=9\n -2x=8\n x=-4$

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Please help me as soon as possible

Answers

The formula of the Lateral Area of a cylinder is:
Lateral Area = 2 $\pi$ rh
=2 $\pi$ (12)(60) (altitude is 5×radius)
(5×12=60)
=4523.9 mm² ≈ 4524 m²

Answer is D. 4524 m²

Ten times the quotient of 104 and 88

Answers

11.82 which is closest to 12, would be the answer to ten times the quotient of 104 and 88.

If s(x) = x – 7 and t(x) = 4x2 – x + 3, which expression is equivalent to (t*s)(x)?4(x – 7)2 – x – 7 + 3

4(x – 7)2 – (x – 7) + 3

(4x2 – x + 3) – 7

(4x2 – x + 3)(x – 7)

Answers

The correct answer is 4(x-7)²-(x-7)+3.

Explanation:
When we find (t*s)(x), that is the same as t(s(x)). To evaluate this, we take the value of s(x), x-7, and substitute it in for every x in t(x). Instead of 4x², we have 4(x-7)²; instead of -x, we have -(x-7). This gives us 4(x-7)²-(x-7)+3.

Answer:

$(4x^2-x+3)(x-7)<strong>$

D is the correct option.

Step-by-step explanation:

We have been given that

$s(x)=x-7\text{ and }t(x)=4x^2-x+3$

We have to find $(t\cdot x)$

which means we have to find the product of these two expressions.

We can rewrite $(t\cdot x)$ as $t(x)s(x)$

Therefore, we have

$(t\cdot x)\n\n=t(x)s(x)=(4x^2-x+3)(x-7)$

Hence, the equivalent expression is

$(4x^2-x+3)(x-7)$

D is the correct option.

Evaluate b2c-1 for b = 8 and c = -4. -16 1/16 16 256

Answers

Answer: The correct option is (B) -16.

Step-by-step explanation: We are given to evaluate the value of the following expression for b = 8 and c = -4 :

$E=b^2c^(-1).$

To find the value of expression (i), we need to substitute the values of b and c in equation (i).

We will be using the following property of exponents :

$x^(-a)=(1)/(x^a).$

Therefore, from equation (i), we get

$E\n\n=b^2c^(-1)\n\n=8^2* (-4)^(-1)\n\n\n=(64)/(-4)\n\n=-16.$

Thus, option (B) is correct.

b²c-¹ = (8)²(–4)-¹ = 64(–¼) = –16

A ship is about to sink in 20 minutes with 15 people on board. A nearby island and a boat are their only escape, but the boat can only carry 5 people at a time. It takes a total of 9 minutes for the boat to go from the ship to the island and back. People can't swim due to the threat of sharks. How many people would survive and reach the island?

Answers

10 people will reach the island and survive

Final answer:

Considering the time constraints of the situation, only 2 trips can be made before the ship sinks. Therefore, only 10 people, as the boat carries 5 per trip, can reach the island alive.

Explanation:

This question is a mathematical problem that can be solved by considering the time constraints. To start, we know that the boat can carry 5 people at a time and it takes 9 minutes to go from the ship to the island and back.

This means that only 5 people can be transported to the island every 9 minutes.

However, the ship will sink in 20 minutes, so the boat will only be able to make 2 trips - one at the beginning, and the second after 9 minutes. Therefore only a total of 10 people (5 people per trip) will be able to reach the island before the ship sinks.

Learn more about Problem-Solving here:

brainly.com/question/34863440

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Find all the real square roots of 0.0064

Answers

$√(0.0064)$
=0.08

The square root of $√(0.0064)$ is 0.08

You can check by doing the opposite operation to square root, which is squaring.
$0.08^(2)$
=0.0064

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