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Fiesta28 [93]
3 years ago
7

Un edificio proyecta una sombra de 25 metros y del punto más alto de este al punto final de la sombra hay una distancia de 53 m

¿cuál es la altura del edificio?
Mathematics
1 answer:
inysia [295]3 years ago
7 0

Answer:sorry no spanish

Step-by-step explanation:

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Which is the graph of a function and it’s inverse? THE ANSWER IS NOT D. Please help I’ll mark brainliest!
nika2105 [10]
I’m pretty sure it’s B!
6 0
3 years ago
Find the half life of a substance which decays according to the function A(t)=600e^-0.05t, where t is time in days. Round to the
Pavel [41]

Answer:

14 days

Step-by-step explanation:

The half life of a substance is the time required until the object has only half of the inicial mass.

So, to find the inicial mass of the object, we use t = 0 in the equation A(t):

A(0) = 600*e^0 = 600

Half of this mass is 300, so we can use A(t) = 300 and then find the time:

300 = 600e^-0.05t

e^-0.05t = 0.5

ln(e^-0.05t) = ln(0.5)

-0.05t = -0.6931

t = 13.862 days

Rounding to nearest day, we have that t = 14 days

8 0
4 years ago
Yea shop sells 60 teas in total. 9 of them are caffeinated. What percent is caffeinated
Digiron [165]

Answer:

15% of the teas are caffeinated

Step-by-step explanation:

Use the formula:

part/whole = t/100%

where t will be representing the percent of caffeinated tea.

Plug in the given to the formula shown above:

9/60 = t/100

Solve using cross product

(9 x 100) = (60 x t)

900/60 = 60t/60

15 = t

4 0
2 years ago
Add the two expressions.<br><br> −2.4n−3 and −7.8n+2
Sphinxa [80]

Answer:

-10.2n - 1

Step-by-step explanation:

We have two expressions in variable n and we have to add the two expressions.

An important thing to note is that only like terms can be added. i.e. the term with "n" can only be added or subtracted to the term with "n". Similarly a constant can only be added or subtracted to a constant.

(-2.4n-3)+(-7.8n+2)\\=-2.4n-3-7.8n+2\\=-2.4n-7.8n-3+2\\=-10.2n-1

Thus, the two given expressions add up to -10.2n - 1

4 0
3 years ago
The shape of a quartic with a negative leading coefficient most closely resembles what letter
Sonbull [250]

Answer:

M

Step-by-step explanation:

A quartic equation/function is a fourth degree polynomial. The general form is:

ax^4+bx^3+cx^2+dx+e

We can put any values for the variables a, b, c, d, and e.

The general shape of a fourth degree polynomial is in the shape of the English letter "W".

The leading coefficient is the value of "a".

If a is negative, the curve gets upside down, so a "W" going upside down would resemble an "M".

A graph of a quartic with negative leading coefficient is shown attached. The equation is:

-x^{4}+2x^{3}+x^{2}-2x-2

4 0
4 years ago
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