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Dvinal [7]
3 years ago
10

Given the equation y= -x+ 9, what is the y-intercept? 1/2 -1/29-9​

Mathematics
2 answers:
Vera_Pavlovna [14]3 years ago
8 0

Answer:

the y intercept of y=-x+9 is 9

Zepler [3.9K]3 years ago
5 0

Answer:

-1/2

Step-by-step explanation:

i hope it helps :)

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Find the cosine ratio of angle ?. hint: use the slash symbol ( / ) to represent the fraction bar, and enter the fraction with no
Andru [333]

We are given that the angle a is the right angle. So let us work from this.

ab = 12 (the vertical side of the triangle)

bc = 13 (which if drawn can be clearly observed to be the hypotenuse) = the side opposite to angle a

ca = 5 (the horizontal side of the triangle)

 

Since we are to find for the cosine ratio of angle c or angle θ, therefore:

cos θ = adjacent side / hypotenuse

cos θ = ca / bc

cos θ = 5 / 13

 

Check out the attached image below for the illustration of the triangle.

6 0
4 years ago
What is the slope of a line with the coordinates 0,9 and -3,4
Semmy [17]

Answer:

The answer is -5/3

Step-by-step explanation:

<h3><u>Given</u>;</h3>
  • x₁ = 0 and x₂ = (-3)
  • y₁ = 9 and y₂ = 4

Slope of a line

  • m = y₂ – y₁ ÷ x₂ – x₁

Now,

m = y₂ – y₁ ÷ x₂ – x₁

m = 4 – 9 ÷ 0 – (-3)

m = -5 ÷ 3

m = -5/3

Thus, The slope is -5/3

<u>-TheUnknownScientist 72</u>

6 0
2 years ago
Read 2 more answers
0.55a - a<br><br> I don’t understand how this comes out to -0.45a. Can someone explain?
Dmitry [639]

Step-by-step explanation:

please give me brainlest

8 0
3 years ago
Read 2 more answers
Giovanni is visiting her grandmother who lives in an apartment building on the 25th floor. Giovanni enters the elevator in the l
Blizzard [7]
So how many does he have left

25-16=9
9 floors left

the want a percentage so 9 out of 25
percent is out of 100
a hack for this specific problem is that 25 is exactly 1/4 of 100 so
9/25 times 1=the same thing so
9/25 times 4/4 (simplifies to 1)=(9 times 4)/(25 times 4)
36/100
this is out of 100 so
36%

of course there is a legit way of solving this problem but this is a hack (this works for factors of 100 like 2,4,5,10,20,25,50)
5 0
3 years ago
Read 2 more answers
A sequence of 7 numbers starts with 8. The second number in the sequence is unknown and may be positive or negative. The third t
scoray [572]

Answer:

4

Explanation:

a_1=8,a_7=0

Since the third term is the sum of the two previous terms

a_3=a_2+a_1

a_7=a_6+a_5

a_7=a_5+a_4+a_4+a_3

Continuing in like manner

a_7=5a_3+3a_2

Since a_3=a_2+a_1

a_7=5(a_2+a_1+3a_2

a_7=5a_2+5a_1+3a_2

a_7=8a_2+5a_1

Recall: a_1=8,a_7=0

0=8a_2+5*8

8a_2=-40

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The sequence is therefore:

8,-5,3,-2,1,-1,0

The sum of the seven numbers is 4.

8 0
3 years ago
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