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3 years ago

Which direction does the graph of f(x) = −18 + x2 − 3x open?

1 answer:

7 0

Please write this equation as <span>f(x) = −18 + x^2 − 3x

Rewrite it in descending order by powers of x: f(x) = x^2 - 3x - 18

Since the coefficient of the x^2 term is +, the graph opens UP.</span>

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$10,000 is invested at two different rates. $2,500 is invested at 4%, and the rest is invested at 5%. How much interest is earne

worty [1.4K]

I'm assuming this is a yearly interest.

2500*.04=100
7500*.05=375

so that would be $475 earned from interest

3 0

3 years ago

|9-(-1)|= simplify the expression

Hitman42 [59]

Answer:

Step-by-step explanation:

Remove parentheses.

|9+1|

Simplify 9+1 to 10.

|10|

simplify

7 0

3 years ago

Kona wants to bake at most 30 loaves of banana bread and nut bread for a bake sale. Each loaf of banana bread sells for $2.50, a

frutty [35]

x+y≤30 and 2.50x+2.75y≥44 are the inequalities that model given situation.

Step-by-step explanation:

Given,

Number of banana breads and nut breads to bake = at most 30

At most 30 means the amount cannot exceed 30.

Selling price of each banana bread = $2.50

Selling price of each nut bread = $2.75

Amount to make = $44 at least

At least 44 means that the amount cannot be less than 44.

Let,

x represent the number of loaves of banana bread to be sold

y represent the number of loaves of nut bread to be sold

x+y≤30

2.50x+2.75y≥44

x+y≤30 and 2.50x+2.75y≥44 are the inequalities that model given situation.

Keywords: linear inequalities, addition

Learn more about linear inequalities at:

#LearnwithBrainly

5 0

3 years ago

HELPPPPP PLEASEEEEE

Salsk061 [2.6K]

Answer:- 1/2

Step-by-step explanation:

4 0

2 years ago

7(y + 2) – (4y – 10) = 44 – 2y + 5<br> y = -10

andrey2020 [161]

Answer:

y=-8

Step-by-step explanation:

7(y + 2) – (4y – 10)

=7y+14-4y+10

=3y+24

3y=-24

y=-8

3 0

3 years ago