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leva [86]
2 years ago
11

Write an equation in slope intercept form for the line with slope -3 and y-intercept -1

Mathematics
1 answer:
Umnica [9.8K]2 years ago
5 0

Answer:

y = -3x -1

Step-by-step explanation:

Slope intercept form is y=mx+b or y=mx-b

m is the slope (steepness of the line, think of a steep or level mountain)

b is the y-intercept (the place where the line FIRST meets the y-axis a.k.a. the vertical line down the middle of a graph.)

y= -3x -1

means your line is going downhill, and it crosses the y-axis at -1.

If you need any help graphing refer to Desmos Graphing Calcuator (it's free and online.)

<em>If you need me to explain anything, feel free to ask me in the comments. I know mathematics can be worrisome, but I am here to help!</em>

Thanks, buddy

- throckmorton

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If n(A ∪ B)=49, n(A ∩ B)=24, and n(B)=27, find n(A).
mars1129 [50]

Answer:

46

Step-by-step explanation:

n(A U B)= n(A) + n(B) - n(A ∩ B)

n(A)= n(A U B) - n(B) + n(A ∩ B)=49-27+24 =46

Hope, this helps you.

3 0
3 years ago
A jar contains 5 red marbles, 10 blue marbles, 1 white marble, 6 black marbles, and 3 yellow marbles. Determine the probability
Oliga [24]

Answer:

so if we make a pie chart

there's 25 marbles

it'll be 1/25 or 4% chance

a red marble is 5/ 25 or a 20% chance

say if you replace the white on the chances of you getting red will be 24% or 6/25 chance of getting red

5 0
3 years ago
NEED HELP FOR TEST!!!
3241004551 [841]
The inequality is
The maximum number of days that Diego's father can drive the car without the warning light coming on is 20 days
Step-by-step explanation:
14 gallons-1.5 gallons=12.5 gallons
we know that
If the remaining fuel is greater than 1.5 gallons Diego's father can drive the car without the warning light coming on
so
Let
x ----> the number of days
----> inequality that represent the situation
Solve for x


The maximum number of days that Diego's father can drive the car without the warning light coming on is 20 days
7 0
3 years ago
A rectangular poster is to contain 722 square inches of print. the margins at the top and bottom of the poster are to be 2 inche
Delvig [45]
Let
x ----------> the height of the whole poster
<span>y ----------> the </span>width<span> of the whole poster
</span>
We need to minimize the area A=x*y

we know that
(x-4)*(y-2)=722
(y-2)=722/(x-4)
(y)=[722/(x-4)]+2

so
A(x)=x*y--------->A(x)=x*{[722/(x-4)]+2}
Need to minimize this function over x > 4

find the derivative------> A1 (x)
A1(x)=2*[8x²-8x-1428]/[(x-4)²]

for A1(x)=0
8x²-8x-1428=0
using a graph tool
gives x=13.87 in

(y)=[722/(x-4)]+2

y=[2x+714]/[x-4]-----> y=[2*13.87+714]/[13.87-4]-----> y=75.15 in

the answer is
<span>the dimensions of the poster will be
</span>the height of the whole poster is 13.87 in
the width of the whole poster is 75.15 in

6 0
3 years ago
Write the number eighteeb in another way
makvit [3.9K]

Standard form - eighteen


number form - 18


expanded form - 10 + 8

8 0
3 years ago
Read 2 more answers
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