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FinnZ [79.3K]
3 years ago
13

I NEED HELP ON 15 AND 16 PLEASE HELP ME I DONT UNDERSTAND IT

Mathematics
1 answer:
Anettt [7]3 years ago
8 0
Lets round 15.99 to 16.00 and lets also round 9.99 to 10.00

So we would do 16.00+10.00

________________________________________________________

I hope this can help. 

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Barbara sells iced tea for $1.49 per bottle and water for $1.25 per bottle. She wrote an equation to find the number of drinks s
ipn [44]
The way she has the equation set up, she is only selling 1 bottle of tea and x bottles of water. So, she basically forgot to put the variable in that represents the number of bottles of tea sold

the way it should be : x = # of bottles of water, and y = # of bottles of tea
1.25x + 1.49y = 100
8 0
3 years ago
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I have a test In math Tommorow and its a make or break situation for my grade I really need help with this question!
irina [24]
I was just in the same situation, you got this. the answer is A.
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The function f(x) = –x2 – 4x + 5 is shown on the graph. On a coordinate plane, a parabola opens down. It goes through (negative
madam [21]

The true statement is:

"The range of the function is all real numbers less than or equal to 9."

<h3>Which statements are true?</h3>

Here we have the quadratic function:

f(x) = -x^2 - 4x + 5

And we want to see which of the given statements are true.

The first one is:

"The domain is al real numbers less than or equal to -2"

This is false, for all quadratic functions the domain is the set of all real numbers (unless the domain is defined).

The second statement is:

" The domain of the function is all real numbers less than or equal to 9."

Also false

Third one:

" The range of the function is all real numbers less than or equal to −2"

The range of a quadratic function with a negative leading coefficient will be the set of all the values smaller than the y-value of the vertex.

In this case, the quadratic function is:

f(x) = -x^2 - 4x + 5

So the vertex is at:

x = 4/(2*-1) = -2\\

Then the y-value of the vertex is:

f(-2) = -(-2)^2 - 4*(-2) + 5 = -4 + 8 + 5 = 9

So the range is the set of all real numbers less than or equal to 9.

So the above statement is false, and the final one:

"The range of the function is all real numbers less than or equal to 9."

Is the true statement.

If you want to learn more about quadratic functions:

brainly.com/question/1214333

#SPJ1

8 0
2 years ago
Please help me the pic might not load
ladessa [460]
<h3>Answer: B) 25 = 10 + w</h3>

5 0
3 years ago
Please answer this please
motikmotik

Answer:

Step-by-step explanation:

6 0
2 years ago
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