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3 years ago

Trignometry help what's the answer?

Mathematics

1 answer:

butalik [34]3 years ago

7 0

You have the 175 on the wrong line, the problem says 175 feet from the base, this is the bottom of the tree.

See attached picture for solution:

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Let f(x)=3x .

kobusy [5.1K]

You are multiplying the 3x by 6
the last choice is correct

8 0

3 years ago

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Please help ill mark you brainliest!

Galina-37 [17]

Answer:1/27

Explanation:

7 0

3 years ago

Half-life of Po-210 is 140 days. If the initial mass of the sample is 5

Anna35 [415]

Answer:

$0.625kg$

Step-by-step explanation:

we are given half-life of PO-210 and the initial mass

we want to figure out the remaining mass after 420 days

in order to solve so we can consider the half-life formula given by

$\displaystyle f(t) = a {0.5}^{t/T}$

where:

f(t) is the remaining quantity of a substance after time t has elapsed.
a is the initial quantity of this substance.
T is the half-life

since it halves every 140 days our T is 140 and t is 420. as the initial mass of the sample is 5 our a is 5

thus substitute:

$\displaystyle f(420)=5\cdot{0.5}^{420/140}$

reduce fraction:

$\displaystyle f(420)=5\cdot{0.5}^{3}$

By using calculator we acquire:

$\displaystyle f(420)=0.625$

hence, the remaining sample after 420 days is 0.625 kg

4 0

3 years ago

BRAINLIESTTT What is the square root of 5?

butalik [34]

Answer:

2.2360679775

that's what I counted and got yep u know I was wrong.

5 0

2 years ago

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What does the equation y = -x mean

Aloiza [94]

It means the variable y is equal to the negative variable of x.

3 0

3 years ago