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2 years ago

Please answer this for me?

Mathematics

1 answer:

Lelu [443]2 years ago

3 0

The first relation is a function, the others no

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I need help solving this problem

guapka [62]

Answer:

- 5/13

Step-by-step explanation:

tans = 5/12 = height/base

Using Pythagoras, hypotenuse = √12² + 5² = 13

Therefore coss had to be 12/13

But since cos s < 0, cos s = - 12/13

Thus,

tanA = sinA/cosA

tanA cosA = sinA

(5/12)(- 12/13) = sinA

- 5/13 = sinA

8 0

2 years ago

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42÷3 using model area

CaHeK987 [17]

Solve 42 -:— 3 using an area model. Draw a number bond and use the distributive property to solve for the unknown length. ' Lesson 20: Solve division problems without remainders using the area model. 4.

8 0

3 years ago

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two bird populations were studied and formulas were developed for each populations growth. the populations p1 and p2 are given b

STatiana [176]

Answer:

$20 e^{k*10} = 60 e^{0.2*10}$

We can divide both sides by 20 and we got:

$e^{10k}= 3 e^{2}$

Now we can appply natural log on both sides and we got:

$10 k = ln(3e^2)$

Now we can divide both sides of the equation by 10 and we got:

$k = \frac{ln(3e^2)}{10}= 0.30986$

So then the aproximate value of k is 0.30986 and rounded would be 0.31

Step-by-step explanation:

We have the following two expression:

$p_1 = 20 e^{kt}$

$p_2 = 60 e^{0.2t}$

We know that the two populations were equal 10 years after the start of the study, so then we can create the following equation:

$20 e^{k*10} = 60 e^{0.2*10}$

We can divide both sides by 20 and we got:

$e^{10k}= 3 e^{2}$

Now we can appply natural log on both sides and we got:

$10 k = ln(3e^2)$

Now we can divide both sides of the equation by 10 and we got:

$k = \frac{ln(3e^2)}{10}= 0.30986$

So then the aproximate value of k is 0.30986 and rounded would be 0.31

6 0

3 years ago

I'm so d*mb‍ i need help i got the answer but i need help with the formulas and showing my work to get the answer

bazaltina [42]

Answer:youre not dum :)

Step-by-step explanation: e

5 0

7 months ago

A petting zoo gives out large buckets of healthy popcorn snacks for visitors to feed to the animals. what fraction of the snack

LuckyWell [14K]

Cow- 1/3 = 12/36
goose- 1/12 = 3/36
goat= 2/9 = 8/36

12 + 3 + 8 = 23/36

23/36 is the fraction of the snack left

7 0

2 years ago

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