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steposvetlana [31]
3 years ago
9

PLEASE HELP, IM TWO MINUTES LATE

Mathematics
2 answers:
Marina86 [1]3 years ago
8 0

Answer:

20 ft    

Step-by-step explanation:

I believe its 20 ft

tatuchka [14]3 years ago
6 0

Answer: i do know the answer tho it is 108 or 128 you chose between them good luck

Step-by-step explanation: i dont know

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2x-6y=8 6x+10y=-4<br> how do you slove it
erastova [34]

Answer:

x=1, y=-1

Step-by-step explanation:

like the picture

6 0
3 years ago
The heat in the house is set to keep the minimum and maximum temperatures (in degrees Fahrenheit) according to the equation |x –
Viktor [21]

Answer: 68.5°F and 76.5°F


Step-by-step explanation:

Given: The heat in the house is set to keep the minimum and maximum temperatures (in degrees Fahrenheit) .

According to the given absolute inequality equation, where x is the temperature of house

|x – 72.5| = 4

it gives x – 72.5 ≥ -4 and x – 72.5 ≤ 4

⇒ -4 ≤ x – 72.5 ≤ 4

Adding 72.5 on both the sides, we get

⇒ -4+72.5 ≤ x ≤ 4+72.5

⇒68.5 ≤ x ≤ 76.5

Thus the minimum temperature is 68.5° F and the maximum temperature is 76.5° F.


7 0
3 years ago
Read 2 more answers
2. The functions ???? and ???? represent the population of two different kinds of bacteria, where x is the time (in hours) and ?
klio [65]

Answer:

(a) Bacterial 1 had a faster rate of growth.

(b) The population of f(x) always exceed the population of g(x). In other words, population of g(x) cannot exceed the population of f(x).

Step-by-step explanation:

Consider the given functions are

f(x)=2x^2+7

g(x)=2x

where, x is the time (in hours) and f(x) and g(x) are the number of bacteria (in thousands).

(a)

The rate of change of a function f(x) on [a,b] is

m=\frac{f(b)-f(a)}{b-a}

Rate of change between third and sixth hour of first function is

m_1=\frac{f(6)-f(3)}{6-3}

m_1=\frac{(2(6)^2+7)-(2(3)^2+7)}{6-3}

m_1=\frac{79-25}{3}

m_1=\frac{54}{3}

m_1=18

Rate of change between third and sixth hour of second function is

m_2=\frac{g(6)-g(3)}{6-3}

m_2=\frac{2(6)-2(3)}{6-3}

m_2=\frac{12-6}{3}

m_2=\frac{6}{3}

m_2=2

Since m_1>m_2, therefore bacterial 1 had a faster rate of growth.

(b)

The initial population of f(x) is 7 and it increases exponentially.

The initial population of g(x) is 0 and it increases linearly.

It means population of f(x) always exceed the population of g(x).

In other words, population of g(x) cannot exceed the population of f(x).

8 0
3 years ago
Please answer thanks
mamaluj [8]

Answer:

Step-by-step explanation:

V= ?\\r = 2\\h = 5\\\pi = 3.14\\\\V = \frac{1}{3} \pi*r^{2} *h\\\\V = \frac{1}{3} *3.14*2^{2} *5\\\\V= \frac{1}{3} *12.56*5\\\\V=  \frac{1}{3}* 62.8\\\\V = 20.93333333\\\\\\V = 20.93

In terms of pi

V= ?\\r = 2\\h = 5\\V = \frac{1}{3} \pi*r^{2} *h\\\\V= \frac{1}{3} *\pi*2^{2} *5\\\\V = \frac{1}{3} \pi*20\\V=  6.67\pi\\

8 0
3 years ago
What is the perimeter of XYZ? Please explain!!!
krek1111 [17]

Answer:

The answer is A✔✔✔ Hope that helps!!!!

Step-by-step explanation:

When you are looking for perimeter you have to add all sides than the sum is your answer

7 0
3 years ago
Read 2 more answers
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