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4 years ago

PLEASE HELP

1 answer:

8 0

Direct variation equal is written as : y = kx

K is the constant of variation.

12 = k4
12/4 = k
k = 3

y = 3x

Answer: <span>B. y = 3x </span>

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A 26-foot ladder is placed against a house and reaches the 24-foot roof. If you want to find the distance between the base of th

NemiM [27]

Answer:

x = 10 ft

Step-by-step explanation: INCOMPLETE QUESTION (WE DON´T HAVE IMAGENS OF TRIANGLE TO CHOOSE FROM)

A triangle is a three sides poligon, and in fact we have quite a big number of different shapes. All we need is that three differents segments of lines ( AB , AC, BC ) cut each other by pairs, to get a triangle

When a triangle has a right angle, that means when two of the segmets that form the triangle are perpendicular, we have a right triangle.

In our case the wall of the house and the ground form a right angle therefore we are in presence of a right triangle.

In a right triangle the opposite side to the 90⁰ angle is call hypotenuse, and the other two sides legs, there is a very important relation between the sides known as Pytagoras Theorem, in terms of equation that theorem establishes:

c² = a² + b² where c is the hypotenuse and a and b the legs, according to that any question about dimensions could be solve if we know two of the parameter of the triangle, in this particular case the question should be "to find the length of the third side.

The opposite side to the ∠90⁰ is the ladder ( 26 ft ) and the top point in the wall is 24 ft from the ground so we can compute the other leg ( side between the wall and the bottom of the ladder)

(26)² = (24)² + x²

x² = (26)² - (24)² ⇒ x = √ (26)² - (24)² x = √ 676 - 576 ft

x = √100 ft

x = 10 ft

To solve this type of problem

1.-Look for a right triangle

2.-Identify the hypotenuse

3.-Apply Pytagoras theorem

4 0

3 years ago

In a topographical map of a city, the vertices of the city limits are A(10,9),B(18,9),C(18,2),D(14,4.5),E(10,4.5). The coordinat

Kipish [7]

Answer:

41 square miles

Step-by-step explanation:

There are several ways you can compute the area of this polygon. We have elected to divide it into a rectangle and a triangle.

The rectangle has dimensions 8 × 4.5, so area ...

A = LW = 8 × 4.5 = 36 . . . . . square miles

The triangle has height 2.5 and base 4, so area ...

A = (1/2)bh = (1/2)(4)(2.5) = 5 . . . . . square miles

Then the total area is the sum of these:

36 + 5 = 41 . . . . . square miles

4 0

4 years ago

What is 6 plus 55555

Yanka [14]

Answer:

6 + 55555 = 55561

Sorry if that answer is wrong .

6 0

3 years ago

Georgia is reading at a rate of 2 pages everything 5 minutes. Which graph below shows the same unite rate?

user100 [1]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

How do I do this please help??

Brums [2.3K]

Answer:

Slope: 4

Y-intercept: -5

Equation: y=4x-5

Step-by-step explanation:

Slope formula:

$\frac{y2 - y1}{x2 - x1}$

So let's use the ordered pairs (1, -1) and (2,3) from the table (it doesnt matter which ones you choose) and plug the numbers in to the formula:

$\frac{3 - ( - 1)}{2 - 1}$

Which is equal to:

$\frac{4}{1}$

Which is equal to 4. So the slope is 4.

To find the y-intercept, substitute the slope and an ordered pair into the slope-intercept equation, y=mx+b. So let's use (1,-1).

-1=4(1)+b

= -1=4+b

= -1-4=4-4+b

= -5=b

So the y-intercept is -5.

Then for the equation, you just plug in the slope and the y-intercept into y=mx+b, which would be:

y=4x-5

3 0

4 years ago