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mojhsa [17]
3 years ago
8

12 girls are having a sleepover at a house, the food there can last them for 10 days. If 3 more girls came over, how long will f

ood last
Mathematics
1 answer:
FrozenT [24]3 years ago
8 0

Answer:

The answer is 8

Step-by-step explanation:

12*10=120 120/15=8

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Kylie invested $290 in an account paying an interest rate of 2.5% compounded
erik [133]

Answer:

11.9

Step-by-step explanation:

390=290e^(.025x)

x=11.85 which rounds to 11.9

7 0
3 years ago
Consider the following function. f(x) = 7x + 1 x (a) Find the critical numbers of f. (Enter your answers as a comma-separated li
sukhopar [10]

Answer:

a) DNE

b) The function increases for every real value of x.

c) DNE

Step-by-step explanation:

Given a function f(x), the critical points are those in which f^{\prime}(x) = 0, that is, the roots of the first derivative of f(x).

Those critical points let us find the intervals in which the function increases or decreases. If the first derivative in the interval is positive, the function increases in the interval. If it is negative, the function decreases.

If the function increases before a critical point and then, as it passes the critical point, it starts to decrease, we have that the critical point (x_{c}, f(x_{c}) is a relative maximum.If the function decreases before a critical point and then, as it passes the critical point, it starts to increase, we have that the critical point [tex](x_{c}, f(x_{c}) is a relative minimum.If the function has no critical points, it either always increases or always decreases.In this exercise, we have that:[tex]f(x) = 7x + 1

(a) Find the critical numbers of f.

f^{\prime}(x) = 0

f^{/prime}(x) = 7

7 = 0 is false. This means that f has no critical points.

(b) Find the open intervals on which the function is increasing or decreasing.

Since there are no critical points, we know that either the function increases or decreases in the entire real interval.

We have a first order function in the following format:

f(x) = ax + b

In which a > 0.

So the function increases for every real value of x.

(c) Apply the First Derivative Test to identify the relative extremum.

From a), we find that there are no critical numbers. So DNE

7 0
3 years ago
The first thats do 2 will get brainlist
Sedbober [7]

Answer:

6

Step-by-step explanation:

5 0
3 years ago
Find The Value of X:<br> A= 12<br> B= 16<br> C= 21<br> D= 24
Dmitriy789 [7]

Answer:

x = 21

Step-by-step explanation:

The 2 angles form a straight angle and are supplementary, thus

7x + 9 + 2x - 18 = 180, that is

9x - 9 = 180 ( add 9 to both sides )

9x = 189 ( divide both sides by 9 )

x = 21

5 0
3 years ago
Read 2 more answers
Is -1/3 - 4/5 positive, negative, or zero?<br> HELP PLS ILL GIVE BRAINLIEST FOR THE CORRECT ANSWER
natali 33 [55]

Answer:

Negative, -17/15

Step-by-step explanation:

5 0
3 years ago
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