3 years ago

Which one is an example of?

Mathematics

1 answer:

AURORKA [14]3 years ago

5 0

C foil because it multiply using the *rainbow* method

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What is the y-intercept -x+5y=45

Karo-lina-s [1.5K]

To find the y-intercept, we can convert this to slope-intercept form, or replace the value of x with 0 and solve for y.

We'll do both first.

-x + 5y = 45

5y = 45

Divide both sides by 5.

y = 9

Now let's convert it to slope-intercept.

-x + 5y = 45

Add x to both sides.

5y = 45 + x

Divide both sides by 5.

y = 1/5x + 9

y = 9

<h3><u>The y-intercept of our line is 9.</u></h3>

3 0

3 years ago

On a map, the length of a nature trail is 7.2 centimeters. If the scale is 1 centimeter to 25 kilometers, what is the actual len

levacccp [35]

Given the scale is 1 cm to 25 km.

We have to find the length of the trail from centimeter to the nearest tenth of kilometer.

Let's take the length of the trail be x km.

The length of the trail given 7.2 cm. We will have to find the length in km.

We have to set it up as a proportion. So we can write the proportion as,

$\frac{1}{25} = \frac{7.2}{x}$

We have to cross multiply first. We will get,

$(1)(x) = (7.2)(25)$

$x= (7.2)(25)$

$x = 180$

So we have got the required length of the train in kilometer.

The actual length of the trail = 180km.

6 0

3 years ago

Read 2 more answers

4. During a 12- hour period, the temperature dropped 48°. How many degrees did the temperature drop each hour.

uranmaximum [27]

Answer:

-4

Step-by-step explanation:

3 0

4 years ago

What is the measures of the angles in a triangle?

Talja [164]

4 is 90

1 is 37

2 is 127

3 is 23

3 0

3 years ago

F(x) = 9 + 4x f(0) = f(-1) = Find the value of x for which f(x) =6 x=

puteri [66]

Answer: x=-3/4

Step-by-step explanation:

Since we know f(x)=6, we can set it equal to the equation.

6=9+4x [subtract 9 on both sides]

-3=4x [divide both sides by 4]

x=-3/4

8 0

3 years ago