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3 years ago

PLEASE HELP TIME LIMIT 10mins remaining

Mathematics

1 answer:

n200080 [17]3 years ago

7 0

Answer:

184.7 ft

Step-by-step explanation:

This is a trignometry problem in which you use the equation sin38=x/300.

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Given y = log3(x + 4), what is the range?

lora16 [44]

Answer:

The range is all real numbers.

The domain is all reals numbers that are greater than -4.

Step-by-step explanation:

$y=\log_3(x+4)$ only exists when $x+4$ is positive.

You can take the log of a negative or 0 number.

So $x+4>0$ implies $x>-4$ . (I just subtract 4 on both sides.)

So the domain is x>-4. You should see this also when you graph the curve that the curve only exist to the right of -4.

Now the range. The range is where the curve exist for the y-values.

The equivalent exponent form of $y=\log_3(x+4)$ is $3^{y}=x+4$

We can solve this for x be subtract 4 on both sides:

$x=3^y-4$

Now here y can be anything; there are no restrictions on the exponent.

Also if you look at the graph of $y=\log_3(x+4)$ you should see every y getting hit by the curve (look down to up; use the y-axis as a guide).

Let's think about the inverse I found above a little more (I'm going to swap x and y).

$y=3^x-4$ .

If we look at the domain and range of this we can just swap it to get the domain and range of $y=\log_3(x+4)$ .

$y=3^x-4$ is an exponential function of 3^x that has been moved down 4 units.

The range since it has been moved down 4 units is $(-4,\infty)$ .

The domain of an exponential function is all real numbers. There are no restrictions on what you can plug in for x.

So swapping these to find the domain and range of $y=\log_3(x+4)$ :

Domain: $(-4,\infty)$

Range : $(-\infty,\infty)$

4 0

3 years ago

The veterinarian weighs Hector’s two dogs. His German Shepherd weighs 37 pounds. His chihuahua weighs 240 ounces. What is the to

horsena [70]

Answer:

52 pounds

Step-by-step explanation:

1 pound=16oz.

240/16=15

15+37=52

3 0

3 years ago

Read 2 more answers

The bus fare in a city is $2.00. People who use the bus have the option of purchasing a monthly coupon book for $28.00. With the

LekaFEV [45]

Answer:

56 = 56

Step-by-step explanation:

Given:

Bus fare = $2.00

coupon book = 28.00

bus fare w/ coupon book = $1.00

let x be the number of bus rides.

2.00x = 1.00x + 28.00

2.00x - 1.00x = 28.00

1x = 28.00

x = 28.00

24 bus rides for both to have the same cost.

2.00x = 1.00x + 28

2.00(28) = 1.00(28) + 28

56 = 28 + 28

56 = 56

4 0

3 years ago

I need help ASAP i will give brainlist

Natalija [7]

Answer:

Step-by-step explanation:

8 0

3 years ago

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What is the slope of the line through (-9, 6) and -3, 9) and explain?

olya-2409 [2.1K]

Answer:

m = 1 / 2

Step-by-step explanation:

The slope formula is as follows:

m = y2 - y1 / x2 - x1

Now we insert the numbers into the formula:

m = 9 - 6 / -3 - (-9)

m = 3 / 6

m = 1 / 2

4 0

3 years ago