All categories

2 years ago

Polygon ABCD is a przimage of an enlargement with a scale factor of 3 and a

Mathematics

1 answer:

Flura [38]2 years ago

4 0

i dont think you have a whole question down and we need examples of the triangles so please shw examples

You might be interested in

Explain how you know which method you should use to solve a rational equation.

notsponge [240]

Methods to solve rational equation:

Rational equation:

A rational equation is an equation containing at least one rational expression.

Method 1:

The method for solving rational equations is to rewrite the rational expressions in terms of a common denominator. Then, since we know the numerators are equal, we can solve for the variable.

For example,

$\frac{1}{2}=\frac{x}{2}\Rightarrow x=1$

This can be used for rational equations with polynomials too.

For example,

$\frac{1+x}{x-3}=\frac{4}{x-3}\Rightarrow(1+x)=4 \Rightarrow x=3$

When the terms in a rational equation have unlike denominators, solving the equation will be as follows

$\frac{x+2}{8}=\frac{3}{4}$

$\Rightarrow\frac{x+2}{1}=\frac{3\times8}{4}\Rightarrow{x+2}=2\times3$

$\Rightarrow{x+2}=6\Rightarrow x=6-2\Rightarrow x=4$

Method 2:

Another way of solving the above equation is by finding least common denominator (LCD)

$\frac{x+2}{8}=\frac{3}{4}$

Factors of 4: $1\times2\times2$

Factors of 8: $1\times2\times2\times2$

The LCD of 4 and 8 is 8. So, we have to make the right hand side denominator as 8. This is done by the following step,

$\Rightarrow\frac{x+2}{8}=\frac{3}{4}\times{2}{2}$

we get,

$\Rightarrow\frac{x+2}{8}=\frac{6}{8}$

On cancelling 8 on both sides we get,

$\Rightarrow(x+2)=6\rightarrow x=6-2\rightarrow x=4$

Hence, these are the ways to solve a rational equation.

7 0

2 years ago

I need help with this one Q13

horsena [70]

Answer:

x= 2 5/6

Step-by-step explanation:

1/3= 2/6

2 1/2= 2 3/6

2/6+ 2 3/6= 2 5/6

Hope this helps! :)

6 0

2 years ago

Read 2 more answers

PLEASEEE HELP ME I NEED HELP REAL BAD ON THIS PROBLEM A MILLION THANKS IF YOU HELP ME!!**NO LINKS**THANK YOU SOOOO MUCH!! =D

Sav [38]

Answer:

hmmmmmm look on Firefox

8 0

2 years ago

Which answer would it be? A. Graph C B. Graph B C. Graph A D. Graph D

Mkey [24]

Answer:

Step-by-step explanation:

y < 1/3x -4

The y intercept is -4

The slope is 1/3

y is less than so the line is dotted

y is less than so we colour below the line

Please vote for Brainliest and I hope this helps!

5 0

2 years ago

Joy makes 6.5 litres of soup, correct to the nearest 0.5 litre. She serves the soup in 280 ml portions, correct to the nearest 1

Levart [38]

Answer:

Joy definitely does have enough soup for 22 people.

Step-by-step explanation:

Upper Bound: 285ml turn it to 0.285 L 10÷2=5

280ml :

Lower Bound: 275ml turn it to 0.275 L

Upper Bound: 6.75 L 0.5÷2=0.25

6.5 Litters :

Lower Bound:6.25 L

6.75÷0.275=24.54 or 25

6.25÷0.285=21.92 or 22

7 0

2 years ago

Read 2 more answers