3 years ago

Students can buy up to 10 books at a book fair. The cost of the books is shown in the graph. What is the domain of this graph?

Mathematics

2 answers:

kirill [66]3 years ago

8 0

I agree with above ^ it's B.

Kisachek [45]3 years ago

5 0

All whole numbers 0-10

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25% of 60 to 40% of 30<br> >, < or =

Travka [436]

You can reduce the percentages to fractions:

$25\% = \dfrac{25}{100} = \dfrac{1}{4}$

$40\% = \dfrac{40}{100} = \dfrac{2}{5}$

So, we have

$25\% \text{ of } 60 = \dfrac{1}{4}\cdot 60 = 15$

$40\% \text{ of } 30 = \dfrac{2}{5}\cdot 30 = 12$

5 0

3 years ago

Which function is graphed?

Lapatulllka [165]

Answer:

I think that a Cube Root Function

Step-by-step explanation:

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3 years ago

What does x equal if x-10 divided by x-4 equals 50 divided by -6

harkovskaia [24]

Answer:

x=65/14

Step-by-step explanation:

(x-10)/(x-4)=50/-6

-50/6=-25/3

(x-10)/(x-4)=-25/3

x-10=-25/3(x-4)

x-10=-25/3x+100/3

x-(-25/3x)=100/3+10

x+25/3x=130/3

28/3x=130/3

x=(130/3)/(28/3)

x=(130/3)(3/28)

x=130/28

x=65/14

5 0

3 years ago

The solutions to the equation 2x2+x-1=2 are X= -3/2 or x=

Brilliant_brown [7]

Answer:

positive 3/2

Step-by-step explanation:

3 0

3 years ago

NEED HELP IMMEDIATELY. I WILL BRAINLIEST. NEED TO SOLVE FOR X INTERCEPT

Kay [80]

Answer:

(1+√7,0),(1−√7,0)

Step-by-step explanation:

You can't factor the expression evenly, so use the quadratic formula.

a = 2

b= -4

c= -12

$\frac{-b+\sqrt{b^{2}-4ac } }{2a}$

$\frac{4+\sqrt{16{}-4(2)(-12)} }{2(2)}$

$\frac{4+\sqrt{16-4(-24)} }{4}$

$\frac{4+\sqrt{16+96} }{4}$

$\frac{4+\sqrt{112} }{4}$

$\sqrt{112} = 4\sqrt{7}$

End result: (1+√7,0),(1−√7,0)

5 0

3 years ago