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3 years ago

What is the slope and y-intercept for the line represented by this equation? 5x+13y= -13

1 answer:

3 0

In y = mx + b form, the slope will be in the m position and the y int will be in the b position. So, we need to put the equation in y = mx + b form.

5x + 13y = -13......subtract 5x from both sides
13y = -5x - 13...now divide both sides by 13
y = (-5/13)x -13/13
y = (-5/13)x - 1

so the slope is -5/13 and the y int is -1

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In a parallel circuit, the supply voltage is 120 V, 60 Hz. The resistance is 30 Ω and the inductive reactance is 40 Ω. What is t

kvasek [131]

Given : supply voltage = 120V;60 Hz

Inductive Reactance $(X_{L}) = 40$ Ω

The inductive reactance is given by the formula, $X_{L}=Lw$ , where L is inductance and $w$ is given by formula, $w = 2\pi(frequency)$

Apply this, we can say that, $L = \frac{X_{L}}{2\pi (frequency)} = \frac{40}{2(3.14)(60)} = 0.106157 H = 106.157 mH$

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3 years ago

Find the missing side length, and enter your answer in the box below. If

Savatey [412]

The missing side length is c = 25 units.

Step-by-step explanation:

Step 1:

The given triangle has a 24 unit long adjacent side and a 7 unit long opposite side.

As we have two sides of the triangle, we can solve for the length of the other side by using Pythagoras' theorem.

The length of the hypotenuse is given as c units.

Step 2:

According to Pythagoras theorem,

$c^{2} = 24^{2} + 7^{2} = 576 + 49.$

$c^{2} = 625, c = 25.$

So the missing length, c of the given triangle is 25 units.

8 0

3 years ago

For all functions of the form f(x) = ax2 + bx + c, which is true when b = 0?

Klio2033 [76]

When b=0
f(x)=ax^2+c

test each
A. with x^2-1, A is false
B. with -x^2-1, B is false
C. cannot find contradiction
D. the axis is actually x=0, 0 is nithere positive nor negative, false

answer is C

7 0

3 years ago

Read 2 more answers

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Eddi Din [679]

Answer: False

Step-by-step explanation:

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3 years ago

Inverse Functions (please help)

Ann [662]

Answer:

The procedure for this case is add three, then divide by 5.

Step-by-step explanation:

if y=5x-3

to find the inverse, we exchange x and y then solve for the new y.

x=5y-3 add 3

x+3 = 5y divide by 5

(x+3)/5 = y

inverse, y=(x+3)/5

The procedure for this case is add three, then divide by 5.

4 0

2 years ago