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3 years ago

Help with #5? thanks!

Mathematics

1 answer:

Alona [7]3 years ago

8 0

The answer is 1, I would explain it but it’s a lot to type onto here.

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What is the value of<br> –4.00<br> –0.25<br> 1.51<br> 2.41

soldier1979 [14.2K]

For this case we must resolve the following expression: $log_ {0.5} (16)$

We have to:

$log_ {a} (x) = \frac {log_ {b} (x)} {log_ {b} (a)}$

The base change rule can be used if a and b are greater than 1 and are not equal to x.

We substitute the values in the base change formula, using $b = 10$

$\frac {log (16)} {log (0.5)} = - 4$

Answer:

-4

Option A

7 0

3 years ago

Fire Fighters are attempting to rescue people from the 3rd floor of a building. The

Daniel [21]

Answer:

If it's where they can get to the building I think it's 15

Step-by-step explanation:

Cause 10 plus 5 and if that can reach where they are able to get in I'd assume it would be 15

I'm not a genius or anything so don't rely on my answer

7 0

2 years ago

1 2/12 - 2/12 - 1/12=

aleksley [76]

Answer:

11/12

Step-by-step explanation:

1 2/12 = 14/12

14/12 - 2/12 - 1/12

since they all have 12, it doesn't matter until the end

14 - 2 = 12 - 1 = 11

put the /12 behind the 11 and you have an answer

7 0

3 years ago

#4 find the value of x. Round answer to nearest tenth.

igomit [66]

Answer:

Step-by-step explanation:

From the given right angle triangle,

The unknown side represents the hypotenuse of the right angle triangle.

With m∠40 as the reference angle,

x represents the adjacent side of the right angle triangle.

4 represents the opposite side of the right angle triangle.

To determine x, we would apply

the Tangent trigonometric ratio.

Sin θ = opposite side/hypotenuse. Therefore,

Tan 40 = 4/x

x = 4/Tan 40 = 4/0.839

x = 4.8

6 0

3 years ago

Math question quadratics

denpristay [2]

Answer: The length and width are 50 and 30 meters (or 30 and 50 meters).

Step-by-step explanation:

To solve this question, we can represent variables for the length and width in two equations.

$2l + 2w = 160\\\\l * w= 1500$

To solve for one of the variables, you'll have to substitute one of the variables, so solve for one of them:

$2l = 160 - 2w\\l = 80 - w$

$(80-w)*w=1500\\\\-w^2 + 80w - 1500 = 0\\\\w^2 - 80w + 1500 = 0$

Now, we have a standard quadratic equation that we can factor. When factoring, you'll get this:

$(w-50)(w-30) = 0$

This tells us that the width could be either 50 or 30.

Substitute 50 into one of the equations to find the length:

2 (l) + 100 = 160

l = 30.

The length and width are 50 and 30 meters (or 30 and 50 meters).

4 0

3 years ago

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