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3 years ago

11

Someone please help me I really forgot how to do this!

2 answers:

Delicious77 [7]3 years ago

7 0

y = mx + b

m = slope or rate of change

b = y-intercept

x = input

y = output

kakasveta [241]3 years ago

6 0

Answer:

x= input

y= output

Step-by-step explanation:

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a taxi company charges passengers $1.75for a ride, no matter how long the ride is and an additional .40 for each mile traveled.

DerKrebs [107]

The relationship between the miles and the total cost is, for every 1 mile at the cost of $.40 you will have to pay an initial fee of $1.75.

The charge for a one-mile drive is $2.15 (C=.40*1+1.75)

The charge for a 2.7 mile ride will be $2.83 (C=.40*2.7+1.75)

8 0

3 years ago

Please help..<br> Solve for the area of the figure below and show work.

Serhud [2]

Answer and Step-by-step explanation:

1. We can see that this kite-shape has 4 triangles in it.

The area of a triangle is as follows:

$A = \frac{bh}{2}$

Where:

b = Base (length)

h = Height

<u>Top Right Triangle Area:</u>

b = 9

h = 3

A = $\frac{3 * 9}{2}$

A = $\frac{27}{2}$

<u>Bottom Right Triangle Area:</u>

b = 9

h = 3

A = $\frac{3 * 9}{2}$

A = $\frac{27}{2}$

<u>Top Left Triangle Area:</u>

b = 4

h = 3

$A = \frac{4*3}{2}$

A = $\frac{12}{2}$

A = 6

<u>Bottom Left Triangle Area:</u>

b = 4

h = 3

$A = \frac{4*3}{2}$

A = $\frac{12}{2}$

A = 6

Now, we add all the areas together to get the area of the kite figure.

A = $\frac{27}{2}$ +

A = 27 + 12

A = 39

<u>The area of the kite figure is 39 </u> $m^{2}$ <u>.</u>

2. We have to find the area of the trapezoid.

(I'm not sure if the 9 is for the entire bottom side length)

If the bottom side length is 9, then we would use the formula:

A = $\frac{a + b}{2} h$

to find the area of the entire trapezoid.

A = $\frac{2.4 + 9}{9}$ × 8.2

A ≈ 46.74 $mi^{2}$

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

4 0

3 years ago

Lin decides to solve the equation using the quadratic formula. Here is her work: xxx=−b±b2−4ac−−−−−−−√2a=−(−6)±(−6)2−4(1)(10)−−−

Sedbober [7]

Answer:

$x = 3 + i\ or\ x = 3 - i$

Step-by-step explanation:

Given

$x = \frac{-(-6) \± \sqrt{(-6)^2 - 4(1)(10)}}{2*1}$

Required

Solve, in terms of i

We have:

$x = \frac{-(-6) \± \sqrt{(-6)^2 - 4(1)(10)}}{2*1}$

Solve the expressions in bracket

$x = \frac{-(-6) \± \sqrt{36 - 40}}{2*1}$

$x = \frac{-(-6) \± \sqrt{-4}}{2}$

Express -4 as 4 * -1

$x = \frac{-(-6) \± \sqrt{-4*1}}{2}$

Split

$x = \frac{-(-6) \± \sqrt{4}*\sqrt{-1}}{2}$

In complex numbers;

$i = \sqrt{-1$

So, we have:

$x = \frac{-(-6) \± 2*i}{2}$

$x = \frac{6 \± 2i}{2}$

Factorize

$x = \frac{2(3 \± i)}{2}$

$x = 3 \± i$

Split

$x = 3 + i\ or\ x = 3 - i$

7 0

3 years ago

0.2x + 0.8 = 9.6 find x<br><br> Please and thank you.

Akimi4 [234]

Answer:

x=44

Step-by-step explanation:

Making the equation in terms of x:

0.2x + 0.8 = 9.6

-0.8 -0.8

0.2x=8.8

*5 *5

x=44

8 0

3 years ago

Read 2 more answers

What is the area of this composite figure ?

maxonik [38]

Answer:

the answer is 88. I don't feel like explaining so sorry.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers