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Temka [501]
3 years ago
11

I need help please!!!

Mathematics
2 answers:
ludmilkaskok [199]3 years ago
8 0

Answer:

x ≥ -1

Step-by-step explanation:

the red fully circle in -1 show that -1 is include

krek1111 [17]3 years ago
6 0
The answer is x>-1 . hope this helped <3
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Devaughn's age is two times Sydney's age. The sum of their ages is 72 What is Sydney's age?
vlabodo [156]

Answer: Devaughn's age is 48 and Sydney's age is 24

Step-by-step explanation:

72 divided by 3 gives you 24.

24+24 is 48 which is Devaughn's age.48-72 gives you 24 which is Sydney's age

4 0
3 years ago
True or false: Least squares regression problems always have a unique solution, since they are modelled by the normal equation
Vilka [71]

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4 0
2 years ago
Mozart's Music Store rents trombones for $34 a month. Bach's Music Store rents trombones for $30 per month plus a yearly fee of
jeka94

Answer:

Step-by-step explanation:

Let M(x) be the cost of renting from Mozart's Music Store for x years, and B(x) be the cost of renting from Bach's Music Store for x years.

From the problem statement, we can come up with the following equations:

M(x) = 34(12x)

B(x) = 30(12x) + 48x

Plugging in x = 9 for each equation, we can get the answer:

M(9) = 34(12 * 9)

M(9) = 34(108)

M(9) = 3672

B(9) = 30(12 * 9) + 48(9)

B(9) = 30(108) + 432

B(9) = 3240 + 432

B(9) = 3672

From this, we can see that the value is equal for both stores.

4 0
3 years ago
What is the equation of the midline for the function f (x)?<br><br> f (t) = 3 cos (x) – 2.5
zaharov [31]

Answer:

  y = -2.5

Step-by-step explanation:

For such a problem as this, you can replace all sine or cosine functions with their midline value of 0. Then you have ...

  f(x) = 0 -2.5

which simplifies to ...

  f(x) = -2.5

You can leave the equation like this, or write it as ...

  y = -2.5

_____

Perhaps you can see that the midline is the value of any constant added to a sine or cosine function.

6 0
3 years ago
Brian runs 3 miles in 25 minutes 30 seconds, and Mary runs 4 miles in 34
Katyanochek1 [597]

Answer:

Same speed.

Step-by-step explanation:

divide Distance by speed

25.5/3=8.5mph

34/4=8.5mph

4 0
3 years ago
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