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2 years ago

Which side lengths create a triangle? choose all that apply.

Mathematics

1 answer:

Verizon [17]2 years ago

4 0

Answer:

I think it would all of them, I could be wrong though

Step-by-step explanation:

To find if one of these is a correct triangle you would need the sum of 2 sides to be longer than the third

A: ⇒ 4 + 9 > 7

B: ⇒ 5 + 12 > 13

C: ⇒ 20 + 22 > 24

therefore making A, B, and C the answer.

let me know if I'm wrong >:3

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A report by the US Geological Survey indicates that glaciers in Glacier National Park, Montana, are shrinking. Recent estimates

postnew [5]

Answer

a) C

b) B

c) C, E

d) 15.5

e) 0.7

f) 67.7

Step-by-step explanation

a) A linear equation can be written as $y=mx+c$ where $m$ is the slope and $c$ is the intercept on the $y$ -axis. The slope describes how $y$ changes when $x$ changes. A negative value means the it is a decreasing change. In our case, $y$ is $A$ and $x$ is $t$ . Thus, the slope of the equation is $m=-0.062$ . This means that the area of glacier is decreasing by $0.062 \text{km}{}^2 = 62000 \text{m}{}^2$ every year since 2000.

b) The $A$ -intercept (= 16.2 $\text{km}{}^2$ ) represents the area covered when $t=0$ . But $t=0$ starting from year 2000. This intercept then represents the area covered by glacier in the year 2000. Therefore, the area covered by glacier in 2000 was 16.2 $\text{km}{}^2$ .

c) $A=f(t)$ means the area covered after year 2000. Setting it to 12 means the area covered after $t$ years is 12 $\text{km}{}^2$ ). $t$ is therefore the number of years since 2000 that the total area covered will be 12 $\text{km}{}^2$ ).

d) $f(12)=16.2−0.062\times12 =16.2-0.744 = =15.456 15.5 \text{km}{}^2$ to 1 decimal place.

e) The term involving $t$ represents the disappearing area. In 12 years, the disappeared area is $0.062\times12=0.744 =0.7 \text{km}{}^2$ to 1 decimal place.

f) $f(t)=16.2−0.062t =12$

$0.062t = 16.2-12 = 4.2$

$t = \dfrac{4.2}{0.062}=67.7419\ldots =67.7$ years to 1 decimal place.

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3 years ago

Rob Polanski is a tractor salesman. Last week his total sales amounted to $38,642.00, and he received $2,704.94 in commission. W

pentagon [3]

2704.94 / 38642 = 0.07 = 7%

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3 years ago

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What is the median !!! help!! alegbra 2. marking brainliest

dedylja [7]

Answer:

The answer is 8.5

Step-by-step explanation:

Just list all the numbers and cross them out one by one.

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2 years ago

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Select the correct<br> function<br> that represents<br> this data.

lidiya [134]

Answer:

f(x) = -5x - 2

Step-by-step explanation:

Plug in the first set of values into each possible equation. Whichever equation yields the correct ouputs (y-values) for ALL input (x-values) is the correct answer. For the function f(x) = -5x - 2, f(-2) = 8, f(-1) = 3 and so on... So f(x) = -5x - 2 is the correct answer!

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2 years ago

A 12-ft ladder is leaning on a building. If the base of the ladder is placed 5 feet from the building, approximately how high do

Citrus2011 [14]

A^2+b^2=c^2

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25+b^2=144

b^2=144-25

b^2=119

SQUARE ROOT BOTH SIDES:

b=10.9

The answer is c.

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2 years ago

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