All categories

3 years ago

Please help me out with this problem!!!

Mathematics

1 answer:

Ronch [10]3 years ago

6 0

Answer:

y = 3x - 2

Step-by-step explanation:

The equation is linear and expressed in slope- intercept form

y = mx + c ( m is the slope and c the y- intercept )

Given (0, - 2 ) then c = - 2

Calculate the multiplier using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, - 2) and (x₂, y₂ ) = (1,1) ← 2 ordered pairs from the table

m = $\frac{1+2}{1-0}$ = 3, hence

y = 3x - 2 ← equation relating x and y

You might be interested in

What is the answer to this question?

Softa [21]

Answer:

Step-by-step explanation:

5 0

2 years ago

A car's rear windshield wiper rotates 130°. The total length of the wiper mechanism is 25 inches and the length of the wiper bla

Delicious77 [7]

The area wiped by the viper blade is approximately 486.7 square inches.

The area wiped by the wiper blade ( $A$ ), in square inches, is equal to the area of the circular section described below:

$A = \frac{\theta\cdot \pi}{360}\cdot (R^{2}-r^{2})$ (1)

Where:

$\theta$ - Angle, in sexagesimal degrees.
$r$ - Inner radius, in inches.
$R$ - Outer radius, in inches.

If we know that $\theta = 130^{\circ}$ , $R = 25\,in$ and $r = 14\,in$ , then the area wiped by the wiper blade is:

$A = \frac{130\pi}{360} \cdot [(25\,in)^{2}-(14\,in)^{2}]$

$A \approx 486.7\,in^{2}$

The area wiped by the viper blade is approximately 486.7 square inches.

We kindly invite to check this question on circular sections: brainly.com/question/14989543

8 0

2 years ago

Ifp * (x) = 3x ^ 2 - 4 and r(x) = 2x ^ 2 - 5x + 1 . find value r(x + 2)

valina [46]

Answer:

Step-by-step explanation:

$r(x) = 2x ^ 2 - 5x +1\\\\ r(x+2) = 2(x+2)^ 2 - 5(x+2) +1\\\\ r(x+2) = 2(x^2+4x+4) - 5x-10+1\\\\ r(x+2) = 2x^2+8x+8 - 5x-9\\\\ r(x+2) = 2x^2+3x-1$

7 0

2 years ago

In engineering and product design, it is important to consider the weights of people so that airplanes or elevators aren't overl

Nataly [62]

Answer:

0.002

Step-by-step explanation:

We need to estimate the standard error of the mean, so we can use it as a standard deviation of the sample of 50 males.

Standard error of the mean = standard deviation/√n

Standard error of the mean = 32/√50 = 4.52

Now we can use this Standard error of the mean to estimate z as follows:

Z = (x – mean)/standard deviation

Z = (190-177)/4.52

Z = 2.87

Using a Z table we can find probability that mean is under 190

P (z<190)= 0.998

For the probability that the mean exceed 190 lbs we substract from 1

P(z>190) = 1 - 0.998 = 0.002

5 0

3 years ago

Factor completely. x2−5x−24

Mandarinka [93]

Answer:

(x-8) (x+3)

Step-by-step explanation:

x^2−5x−24

We need two numbers that multiply to negative 24 and add to negative 5

-8*3 = -24

-8+3 = -5

(x-8) (x+3)

3 0

2 years ago

Read 2 more answers