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salantis [7]
2 years ago
7

Thelocal library has a children’s section with picture books and chapter books. The ratio is 2:3. If there are a total of 500 bo

oks in the children’s section, then how many chapter books are in the section?
Mathematics
1 answer:
Aleksandr-060686 [28]2 years ago
3 0

Answer:

300

Step-by-step explanation:

500-200=300

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what are the missing numbers?
crimeas [40]

Given:

The table of values of an exponential function.

To find:

The missing values in the exponential function.

Solution:

The general exponential function is defined as:

y=a(b)^x              ...(i)

Where, a is the initial value and b is the growth factor.

First point from the given table is (1,10). It means, the equation (i) must be true for (1,10).

10=a(b)^1             ...(ii)

Second point from the given table is (2,20). It means, the equation (i) must be true for (2,20).

20=a(b)^2             ...(iii)

Dividing (iii) by (ii), we get

\dfrac{20}{10}=\dfrac{a(b)^2}{ab}

2=b

Putting b=2 in (ii), we get

10=a(2)^1

\dfrac{10}{2}=a

5=a

Putting a=5,b=2 in (i), we get

y=5(2)^x

The required exponential function for the given table of values is y=5(2)^x. So, the missing values are 2 and x, where 2 is in the base and x is in the power.

8 0
3 years ago
Pls help i will give brianliest
Blababa [14]

Answer:

b is the answer

Step-by-step explanation:

4 0
3 years ago
Help with quadratic graphs asap!
zlopas [31]

x= -0.25 and 1.25

x = -0.5 and  1.5

x = 0 and 1

x = -0.375 and 1.625

Step-by-step explanation:

Given equation of the curve is

y = 4x^2 -4x-1

(i)

First equation 4x^2 -4x-1 =0

Here y = 0

In  x-axis the value of y = 0

The graph cuts the x-axis at(-0.25,0) and (1.25,0)

So, x= -0.25 and 1.25

(ii)

4x^2 -4x-1 =2

here y = 2

The line y= 2 cuts the curve at (-0.5,2) and (1.5,2)

So, x = -0.5 and  1.5

Given equation of the curve is

y= 3x^2-3x -1

(i)

3x^2-3x +2 =2

\Leftrightarrow  3x^2-3x -1 = -1

Here y = -1

The line y = -1  cuts the curve at (0,-1) and (1,-1)

So x = 0 and 1

(ii)

3x^2-3x -1 =x+1

Here y = x+1

The line y -x =1 cuts the curve at (-0.375,0.5) and (1.625,2).

So x = -0.375 and 1.625

3 0
3 years ago
BRAINLIESTTTTT
scZoUnD [109]

Answer:

  1.  f(x) = 4x -6

  2. see the attachment

Step-by-step explanation:

1. The only two answer choices using "function notation" are the first two, which are of the form ...

  f(x) = <some expression involving x>

The only one of these that can describe both points is the first one:

  f(x) = 4x -6

  f(3) = 4·3 -6 = 6

  f(4) = 4·4 -6 = 10

__

2. Slope is the ratio of rise to run. When it is zero, there is no rise for any amount of run: the line is horizontal. The appropriate choice is the graph that shows a horizontal line.

5 0
3 years ago
Steve stayed after school for extra activities 55% of the 180 school days this year. How
Liula [17]

Answer:

He stayed for 99 days

Step-by-step explanation:

55% of 180 is 99

8 0
3 years ago
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