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svlad2 [7]
3 years ago
7

Si al triple de un número se le suma 5, se obtiene -7. ¿De qué número se trata? 3x +5 =-7

Mathematics
1 answer:
e-lub [12.9K]3 years ago
4 0

Answer:

Im sorry but your questio is in spanish

Step-by-step explanation:

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Henrietta did an experiment. She started out with 700 bacteria cells. She found that the growth rate of the bacteria cells was 5
poizon [28]

Answer:

The graph in the attached figure

Step-by-step explanation:

we have a exponential function of the form

y=a(b^x)

where

y ---> is the population of bacteria

x ---> the number of hours

a is the initial value or y-intercept

b is the base of the exponential function

r is the rate of change

b=(1+r)

we have

a=700\ bacteria

r=5\%=5/100=0.05

so

b=1+0.05=1.05

substitute

y=700(1.05^x)

For x=20 hours

substitute in the equation and solve for y

y=700(1.05)^{20} =1,857\ bacteria

4 0
4 years ago
A) You want to buy a new sweatshirt. They normally cost 28.80, but you found one that's on sale for 40% off its normal price. Ho
arlik [135]
For question A, the answer is 2.  Since the sale sweatshirt if 40% LESS, this means that 60% of the original price still remains. 28.80 x .60 = 17.28

For question B, the answer if 4.  You can divide 17 by 20 getting .85
7 0
3 years ago
Inverse of f(x) = x2 − 9
luda_lava [24]
To find the inverse of a function, replace every x in the equation with a y, and replace every y in the equation with an x:

x = y^{2} - 9

Add 9 to both sides:

y^{2} = x + 9

Square root both sides to get y by itself:

y = \sqrt{x+9}

This equation can be simplified by taking the square root of 9 out of the root:

\sqrt{9} = 3
y = 3 + \sqrt{x}

The inverse of this function is y = 3 + √x.
7 0
3 years ago
Read 2 more answers
Which pair of angles are congruent?<br> A) 1 and 8 <br> B) 4 and 6 <br> C) 5 and 6 <br> D) 1 and 7
taurus [48]

Answer:

A

Step-by-step explanation:

because it makes more sense

6 0
3 years ago
Rodney has 83 goldfish in his pond. In the winter, he wants to put the goldfish into one or more smaller fish tanks inside his h
Leviafan [203]

Answer:

0

Step-by-step explanation:

no number of tanks will hold the same amount of fish. 83 is a prime number, no numbers can be equally divided into it

8 0
3 years ago
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