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Tpy6a [65]
3 years ago
7

What is the domain of the function f(x)=x^2+3x+5?

Mathematics
2 answers:
Ugo [173]3 years ago
8 0

Answer:

all real numbers

Step-by-step explanation:

Kitty [74]3 years ago
4 0

Answer:

The domain of this function is all real numbers

Step-by-step explanation:

Unless there is a domain restriction for the function, the domain of a function is all real numbers. This means that all we need to do is determine whether there is a domain restriction.

The things that cause a domain restriction are: an x in the denominator of a fraction like f(x)=\frac{1}{x} or a radical like f(x)=\sqrt{1-x}

As there are no variables in the denominator or a radical, we can conclude that the domain of this function is all real numbers.

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June has $1.95 in dimes and nickels. She has a total of 28 coins. How many of each type of coin does she have.
Verdich [7]

A dime = 0.10

A nickel = 0.05

N + D = 28 coins

Rewrite this as N = 28 -D


0.10D + 0.05N = 1.95

Replace N withe the rewritten equation above:

0.10D + 0.05(28-D) = 1.95

Use the Distributive Property:

0.10D + 1.4 - 0.05D = 1.94

Add the like terms:

0.05D + 1.4 = 1.95

Subtract 1.4 from both sides:

0.05D = 0.55

Divide both sides by 0.05

D = 0.55 / 0.05

D = 11

Nickels = 28 - 11 = 17


There are 11 dimes and 17 nickels.


3 0
3 years ago
Read 2 more answers
Solve each equation by taking square roots<br> 9v^2=25
lisov135 [29]
<span>9v^2=25
v^2 = 25/9
v^2 = (5/3)^2
v =  + 5/3 and v = -5/3

hope it helps</span>
3 0
2 years ago
Can someone help me fill in the blank
Elden [556K]

Answer:

integer

Step-by-step explanation:

The greatest integer function produces the greatest integer less than or equal   to x

8 0
3 years ago
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Hii i’ll give brainliest please help thanks :)
Juliette [100K]

Answer:

Step-by-step explanation:

The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set. The median is the middle value when a data set is ordered from least to greatest.

Hope this help

6 0
3 years ago
What is the value of cos x°?
PolarNik [594]

Answer:

We know,

\cos(x)  =  \frac{b}{h}  =  \frac{15}{17}

so

\cos(x)  = 0.88

.....Hope this helps:)

3 0
2 years ago
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