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Anastaziya [24]

4 years ago

11

The price of bread went from $1.50 per loaf to $2.50 per loaf in four years. Find the rate of change of the price of bread. A) $

0.15 per year B) $0.25 per year C) $0.55 per year D) $1.00 per year

1 answer:

Scorpion4ik [409]4 years ago

8 0

Take $1.50 from $2.50 and get $1.00 then divide it by 4 since that is the time period.

$1.00/4= $0.25

Therefore making your answer B.

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Graph x^2/49+y+1^2/4=1

11Alexandr11 [23.1K]

9514 1404 393

Answer:

see attached

Step-by-step explanation:

Perhaps you want a graph of ...

x^2/49 +(y +1)^2/4 = 1

This is an ellipse centered at (x, y) = (0, -1) with a major axis in the x-direction of 14, and a minor axis in the y-direction of 4.

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3 years ago

Find the sum of the following ap .1) 1/15, 1/12, 1/10,....,to 11 terms

sertanlavr [38]

Answer:

33/20

Step-by-step explanation:

1/12 - 1/15 = 5/60 - 4/60 = 1/60

d = 1/60

a_n = a_1 + d(n - 1)

a_11 = 1/15 + (1/60)(11 - 1)

a_11 = 1/15 + 1/6

a_11 = 4/60 + 10/60

a_11 = 14/60

a_11 = 7/30

a_12 = 14/60 + 1/60

a_12 = 15/60

a_12 = 1/4

s_n = n(a_1 + a_n)/2

s_11 = 11(1/15 + 7/30)/2

s_11 = 11(2/30 + 7/30)/2

s_11 = 11(9/30)/2

s_11 = 99/60

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8 0

4 years ago

Kay leaves a $6 tip for a $40 bill. What percent tip did kay leave?

Likurg_2 [28]

Answer:

15% tip

Step-by-step explanation:

6/40= 0.15= 15%

4 0

4 years ago

Read 2 more answers

There are more cups in 5 gallons than in 22 quarts

ololo11 [35]

Answer:

The answer is false

Step-by-step explanation:

22 quarts is 5.5 gallons

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4 years ago

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How does one find the inverse function of f(x)= <img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3x-1%7D" id="TexFormula1" tit

lisabon 2012 [21]

Answer:

$\displaystyle f^{-1}(x)=\frac{1+x}{3x}$

Step-by-step explanation:

<u>The Inverse of a Function</u>

The procedure to find the inverse of the function is:

* Write the function as a two-variable equation:

$\displaystyle y=\frac{1}{3x-1}$

* Solve the equation for x.

Multiply by 3x-1

$y(3x-1)=1$

Divide by y:

$\displaystyle 3x-1=\frac{1}{y}$

Sum 1:

$\displaystyle 3x=\frac{1}{y}+1$

Operate the right side:

$\displaystyle 3x=\frac{1+y}{y}$

Divide by 3:

$\displaystyle x=\frac{1+y}{3y}$

* Swap the variables:

$\displaystyle y=\frac{1+x}{3x}$

Write back into function form:

$\boxed{\displaystyle f^{-1}(x)=\frac{1+x}{3x}}$

7 0

3 years ago