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7nadin3 [17]
3 years ago
14

1. Write an equation of the line with a slope of -2 and a y-intercept of 6 in slope-intercept form.​

Mathematics
1 answer:
ivolga24 [154]3 years ago
7 0

Step-by-step explanation:

the general slope intercept form is

y = ax + b

a is the slope, b is the y-intercept (when x=0).

1.

is already defined

y = -2x + 6

2.

the slope is expressed as ratio y/x indicating how many units y changes, when x changes a certain amount of units when going from one point to another.

(-3, -5) and (2, 5).

x changes by +5 units (from -3 to 2), y changes by +10 units (from -5 to +5).

so, the slope is 10/5 = 2

that gives us the first part of the equation :

y = 2x + b

we get b by using the coordinates of one of the points as x and y. e.g. (2, 5)

5 = 2×2 + b = 4 + b

1 = b

so, the full line equation is

y = 2x + 1

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56 books; 75% decrease
suter [353]
75% of 56 is .75 * 56
.75 * 56 = 42
Because you are decreasing, you subtract 42 from 56.
56 - 42 = 14
A 75% decrease of 56 books would leave 14 books.
6 0
3 years ago
Read 2 more answers
X-3y=8 what is y in this question
gogolik [260]

y=5, x=7 because if 3x5=15 then 15-7=8 dont report me if i do get this wrong

7 0
4 years ago
Please help don’t get it
posledela

Answer:

B

Step-by-step explanation:

Whenever you are asked to find the number of square feet covered by something, you are finding an area. To find the area of Jason’s circle, you first need to figure out if you have been given the radius or the diameter. By definition, the diameter of a circle is the longest distance across the circle, so we know here that the diameter is 8 feet. This means that the radius is 4 feet. So...

A = π(4)2

= 16π

≈ 50.2 square feet

So, Jason’s circle will cover about 50.2 square feet of his wall (and B is the closest one to that)

5 0
3 years ago
Fins the value of (15)^3 + (-9)^3 + (-6)^3 , without actually cubing the numbers​
Hatshy [7]

a³ + b³ + c³ + 3abc = ( a + b + c)(a² + b² + c² + ab + bc + ca)

if a + b + c = 0. then a³ + b³ + c³ = 3abc

here a + b + c = 15 + (-9) + (-6)

a + b + c = 15 - 15

a + b + c = 0

so a³ + b³ + c³ = 3abc

15³ + (-9)³ + (-6)³ = 3(15)(-9)(-6)

= 2430

so the answer is 2430

8 0
3 years ago
Kurt's truck uses 12 gallons of gas to travel 144 miles. He has 6 gallons in the tank. How much more gas will he need to drive 3
LenKa [72]
I hope this helps you



12 gallons for 144 miles


6 galoons for 144/2=72 miles


1 gallon for 72/6=12 miles


if 1 gallon for 12 miles


how many gallons for 324 miles


?.12=1.324


?=324/12


?=27 miles
8 0
3 years ago
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