Hello...could someone help me out?? ty :)

Mathematics

2 answers:

cupoosta [38]3 years ago

6 0

Answer:

It is either the first one or the third one but I can't read the rest of the question to make sure which one is right...Nvm It's the first one, I was zoomed in

Step-by-step explanation:

Gwar [14]3 years ago

3 0

Answer:

Step-by-step explanation:

Always start by finding the slope when you're given two points! (This means that we can rule out C and D.) The equation for slope is

$m = \frac{y2 - y1}{x2-x1}$

You can remember this by thinking about it being <u>rise over run,</u> or the distance you go up or down divided by the distance you go across. This means that answer choices B and D are incorrect.

Next, what do we plug into slope-intercept form to get the y-intercept? The slope, and one other point.

y = mx+b

You can see that if we were to plug in m, x, and y, we'd only have b left, and we could solve!

<u>This means that choice A is correct.</u>

You might be interested in

While in Europe, if you drive 117 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per lite

Hoochie [10]

You would spend $63.58 on gas per week.

Step-by-step explanation:

Given,

Distance per day = 117 km

Distance in a week = 117*7 = 819 km

1 km = 0.6214 mile

819 km = 819*0.6214 = 508.93 miles

Car's mileage = 42.0 mi/gallons

Let,

x be the gallons for 508.93 miles

x gallons = $\frac{508.93}{42}=12.12$

Therefore,

12.12 gallons of gas is needed for one week.

1 US gallon = 3.785 liters

12.12 gallons = 12.12*3.785

12.12 gallons = 45.87 liters

Cost of gas per liter = 1.10 euro

Cost of 45.87 liters = 1.10*45.87 = 50.457 euros

1 euro = $1.26

50.457 euros = 1.26*50.457 = $63.58

You would spend $63.58 on gas per week.

Keywords: multiplication, division

Learn more about division at:

#LearnwithBrainly

8 0

4 years ago

You have $6000 with which to build a rectangular enclosure with fencing. The fencing material costs $30 per meter. You also want

Roman55 [17]

Refer to the figure shown below.
x = the width of the rectangle (meters)
y = the height of the rectangle (meters(

The fencing for the perimeter of the rectangle costs $30 per meter.
The two inner partitions cost $25 per meter.

The total cost of the fencing is
C = 2(x+y)*$30 + 2y*$25
= 60(x+y) + 50y
= 60x + 110y

Because the amount available to spend is $600, therefore
60x + 110y = 6000
or
6x + 11y = 600
That is,
y = (600 - 6x)/11 (1)

The area is
A = x*y (2)

Substitute (1) into (2).
A = (x/11)*(600 - 6x) = (1/11)*(600x - 6x²)

To maximize A, the derivative of A with respect to x is zero.
That is,
600 - 12x = 0
x = 600/12 = 50
From (1), obtain
y = (1/11)*(600 - 6*50) = 300/11 = 27.273

Because the second derivative of A with respect to x is negative, x=50, y = 27.273 will yield the maximum area.

The maximum area is
50*27.273 = 1363.64 m² = 1364 m² (nearest integer)

Answer: 1364 m² (nearest integer)