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3 years ago

Plz help brainiest to whoever right

Mathematics

1 answer:

nadya68 [22]3 years ago

6 0

Answer:

They add up to equal 90 degrees.

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Which linear inequality is represented by the graph? 0214 Qys ovas 2x + 3

Luba_88 [7]

Answer:

sorry I just needed points

Step-by-step explanation:

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3 years ago

The scale for a map is 20 miles =1/2 inch. The distance between two towns on the map is 3 and 3/4 inches. What is the actual dis

Fofino [41]

Answer:

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Step-by-step explanation:

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3 years ago

Let f(x) = cx^k be a power function such that f(13) is four times the size of f(1). What is the power k?

Ivenika [448]

Answer:

0.540

Step-by-step explanation:

Hi there,

To get started in order to solve this, please recall the property of logarithms.

This question is a bit tricky, but doable. Best way to solve this is first compare the two functions:

$f(x) = cx^{k} \\ f(13)=4f(1)$

Now, let's see what the function gives at 13 and 1:

$f(13)=c13^{k}\\f(1)=c1^{k}$

Something to recognize is that 1 to the power of anything is just 1, so f(1) is reduced to:

$f(1)=c$ We are making progress!

Next, we can set both f(13) forms equivalent to each other, watch this:

$f(13)=f(13) = 4f(1)$ but we know what f(1) is equal to, and let's substitute our knowns:

$c13^{k}=4c1^{k} = 4c$ the c constant on both left and right side cancel out:

$13^{k}=4$ Now, take the logarithm form of both side of the equation. I used natural log, but you can also use common logs:

$ln(13^{k})=ln(4)$ ⇒ $k*ln(13)=ln(4)$ this was performed using the power log rule.

Isolate k:

$k=\frac{ln(4)}{ln(13)} =0.540$ using a calculator.

If you liked this solution, hit Thanks or give a rating!

thanks,

8 0

3 years ago

Mr. Jay checks the pantry to see what he needs to get at the grocery store. 1 point

inessss [21]

Answer:

Step-by-step explanation:

4 times 8 +3=35

4 0

3 years ago

PLEASE ITS MY LAST QUESTION

Serjik [45]

Answer:

$y = - \frac{1}{4} x - 10$

Step-by-step explanation:

The negative reciprocal of 4 is -1/4.

Let's substitute in our values, to find the y-intercept:

$y = - \frac{1}{4} x + c$

$- 11 = - 1 + c$

$c = - 10$

Finally, our full equation is:

$y = - \frac{1}{4} x - 10$

4 0

2 years ago