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kirill115 [55]
3 years ago
8

2. please help and i’ll give you brainliest if u get it right

Mathematics
1 answer:
Katarina [22]3 years ago
7 0
51.5 I’m pretty sure
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The graph of an exponential function has a negative y-intercept and a common ratio (T) such that 0 << 1. which statements
andrew-mc [135]

Step-by-step explanation:

tell me when you get the answer

7 0
3 years ago
A line passes through the point (2, 10) and has a y-intercept of 4. What is the equation of the line?
KatRina [158]

Answer:

y=3x+4

Step-by-step explanation:

Hi there!

<u>What we need to know:</u>

  • Linear equations are typically organized in slope-intercept form: y=mx+b where m is the slope and b is the y-intercept (the value of y when x is equal to 0)

<u>1) Determine the slope (m)</u>

m=\frac{y_2-y_1}{x_2-x_1} where two points that the line passes through are (x_1,y_1) and (x_2,y_2)

We're given the point (2,10) and the y-intercept of 4. Recall that the y-intercept occurs when x is equal to 0. This means that the y-intercept occurs at (0,4), giving us our second point.

Plug these points into the equation

=\frac{10-4}{2-0}\\=\frac{6}{2}\\=3

Therefore, the slope of the line is 3. Plug this into y=mx+b

y=3x+b

<u>2) Determine the y-intercept (b)</u>

The y-intercept is given; it is 4. Plug this back into y=3x+b

y=3x+4

I hope this helps!

3 0
3 years ago
3.) rewrite r(x) in expanded form
Andrew [12]

Answer:

Step-by-step explanation:

r(x)= (x-3)(x+5)

= x²+5x-3x-15

=x²+2x-15

6 0
4 years ago
Read 2 more answers
What are the solutions of the equation x^4 + 95x^2 - 500= 0? Use factoring to solve
Artist 52 [7]
1) given x^4 + 95x^2 - 500

2) split in two factors with common factor term x^2: (x^2 + )(x^2 - )

3) find two numbers that add up 95 and their product is - 500:

=> 100*(-5) = - 500 and 100 - 5 = 95

=> (x^2 + 100)(x^2 - 5)

4) factor x^2 - 5 = (x + √5) (x - √5)

5) write the prime factors: (x^2 + 100) (x + √5) (x -√5)

6) find the solutions:

x^2 + 100 = 0 => not possible

x + √5 = 0 => x = - √5

x - √5 = 0 => x = √5


Answer: x = √5 and x = - √5
4 0
3 years ago
HELP ME!! PLEASE 10 POINTSSS
Elenna [48]

Answer:

The answer is 47°

Step-by-step explanation:

90°- 43°

3 0
3 years ago
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