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3 years ago

1. 3x-21=2x+5 There are lots more please help me.

Mathematics

1 answer:

aliya0001 [1]3 years ago

8 0

Answer:

x=26

Step-by-step explanation:

The picture will explain.

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A painter leans a 20 foot ladder against a house so that it touches the house 11 feet from the ground. How far from the base of

gogolik [260]

This problem involves using the Pythagorean Theorem which is a^2+b^2=c^2

We already have the values of a and c, but b is unknown. So we plug in: 11^2+b^2=20^2

121+b^2=400

b^2=279

b=sqrt(279)

b=16.7

So the answer is about 16.7 ft

Hope this helped!

8 0

3 years ago

Graph x+3y<(or equal to)6, indicating the solution set with cross hatching or shading. Explain how you determine where to dra

Sergeu [11.5K]

Step 1

Given;

$x+3y\leq6$

Required; To graph the inequality

Step 2

Graph the function

$\begin{gathered} We\text{ find the y-intercept by setting x=0} \\ 0+3y\leq6 \\ y\leq2 \\ First\text{ point\lparen0,2\rparen} \end{gathered}$ $\begin{gathered} We\text{ find the x-intercept by setting y=0} \\ x+3(0)\leq6 \\ x\leq6 \\ Secon\text{d point;\lparen6,0\rparen} \end{gathered}$

So by finding the x-intercept and y-intercept, we can determine where to draw the line. Since the inequality is greater than or equal to the line will be continuous and not broken. Also, we will know the area we will shade by;

$\begin{gathered} Resolving\text{ the inequality and make y the subject of the formular} \\ x+3y\leq6 \\ 3y\leq6-x \\ y\leq2-\frac{x}{3} \end{gathered}$

Since if we set x=0, we get y < or equal to 2, then we know that the shaded area will be where y is equal to and below. There we will shade below the point (0,2) to represent the solution set.

8 0

1 year ago

8/10 divided by 1/2=? show how you got the answer

zheka24 [161]

Answer:

here you go

its 8/5 as a fration

5 0

3 years ago

Read 2 more answers

A table top in the shape of a trapezoid has an area of 2250 square centimeters and the shorter base is 80 centimeters. The longe

Citrus2011 [14]

The area of a trapezoid has a formula of:
Area = (a + b) h / 2

Using the formula, we can easily find the height of the trapezoid.
Area = (a + b) h / 2
2250 = (80 + 100) h / 2
2250 = 180h / 2
2250 = 90h
h = 25 centimeters

So the height of the trapezoid is 25 centimeters.

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3 years ago

What type of number is -17i

emmainna [20.7K]

Answer:

See below

Step-by-step explanation:

-17i ' i ' stands for 'imaginary'

this is a negative imaginary number

3 0

3 years ago