2 years ago

1. If f(x) = 2x - 3, find the following: a. f(-2) = b. f(7) = c. f(-4) =

Mathematics

1 answer:

Pavlova-9 [17]2 years ago

5 0

A. 2(-2) - 3
-4 - 3
-7

b. 2(7) - 3
14 - 3
11

2(-4) - 3
-8 - 3
- 11

You might be interested in

Given line segment AB, the coordinates of A are (3,-5) and the coordinates midpoint are (5,-1), what are the coordinates for B?

dsp73

Answer:

Step-by-step explanation:

Point P(5, -1) being the midpoint of AB means that $x_P-x_A=x_B-x_P$

$5-3=x_B-5\\\\2+5=x_B\\\\x_B=7$

and $y_P-y_A=y_B-y_P$

$-1-(-5)=y_B-(-1)\\\\-1+5=y_B+1\\\\y_B=3$

6 0

3 years ago

Find the length of the arc on a circle with the radius of 2.4 km and is intercepted by a central angle measuring 150°. Leave you

djverab [1.8K]

Formula to find the arc length is:

$s=\frac{\theta}{360} 2\pi r$

Where, s= arc length,

r = radius of the circle

\theta = central angle in degrees.

According to the given problem, \theta= 150 and r =2.4.

So, first step is to plug in these values in the above formula to get the arc length.

$s=\frac{150}{360} *2\pi *2.4$

= $\frac{5}{12} *2\pi *2.4$

$=0.41667*2\pi *2.4$

$=2\pi$

So, arc length is $2\pi$ .

8 0

3 years ago

In the year 2005, there were 100 rabbits in a particular region. Since then, the population has increased by 3.4% per year. Writ

Andreas93 [3]

Answer:

Step-by-step explanation:

Your answer

Ok, lets do it systematically.

2005– 100 rabbits

3.4 % per year increasement.

So every year it increase 0.034 *100 = 3.4 per year

Total 2025-2005= 20 years

So expression is : 0.034*100*year(20)

Answer is : 3.4*20 = 68. So, in 2025, total rabbits will be 168

Mark it as Brainlist answer. Follow me.

3 0

2 years ago

Will give brainliest if done properly

k0ka [10]

Answer:

$\sf \boxed{ \sf y - 3 = \dfrac{3}{2} (x - 6)}$

Explanation:

$\sf Given \ equation: y = \dfrac{3}{2} x - 5$

Comparing it with slope intercept form "y = mx + b" where 'm' is slope and 'b' is y-intercept.

Here slope: 3/2 and y-intercept: -5

Parallel slope has the same tangent slope.

Pass through point (x, y) = (6, 3)

Equation:

$\sf y - y_1 = m(x - x_1)$

$\rightarrow \sf y - 3 = \dfrac{3}{2} (x - 6)$

6 0

1 year ago

Point D with coordinates (3,-5) is reflected across the x-axis, then translated by the vector ⟨−4,6⟩ . Where is its image locate

Dmitriy789 [7]

Answer:

A. quadrant l

4 0

3 years ago

Read 2 more answers