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2 years ago

Please solve this question on rationalising denominators showing all working <3

Mathematics

1 answer:

Komok [63]2 years ago

8 0

Step-by-step explanation:

denominators showing all working <3

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The primeter of a rectangle is 53 meters. The length is 2.3 meters longer than the width, w. Write and solve an equation to ind

lys-0071 [83]

The perimeter is the total of adding all of the sides together. A rectangle has 2 lengths and 2 widths. The equation would be:

P = 2l + 2w or P = l + l + w + w

Since you know the perimeter, you can plug it into the equation

53 = 2l + 2w

You can divide the 2 on both sides

26.5 = l + w

l = w + 2.3 because the length is 2.3 meters longer/more than the width. You can substitute (w + 2.3) for "l" in the equation. So instead of:

26.5 = l + w

It will be:

26.5 = (w + 2.3) + w

26.5 = w + 2.3 + w

Subtract 2.3 on both sides

24.3 = w + w

24.3 = 2w

Divide 2 on both sides

12.1 = w

The width is 12.1 meters

6 0

2 years ago

53w+13<56w+16 I need help.

Alborosie

Answer:

w>(-1)

Step-by-step explanation:

Answer on a number line is open circle at -1 all the way to positive 8

7 0

2 years ago

This for math. Rewriting Fractions <br> How do you decide which number to use in the Giant One?

ASHA 777 [7]

Answer:

factor of hundred is

100 - 1, 2,4,5,10,100

4 0

2 years ago

Here is the graph of the sequence M define M recursively using function notation<br>

aev [14]

The graph of the sequence M , we define M recursively using function notation

$f(n+1)=f(n)-2$

Given :

the graph of the sequence M

Lets write the recursive function using the given points

First point is (1,7) and second point is (2,5) then (3,3) and so on

For recursive function , we use the initial point (1,7)

when n=1, f(n)=7

the y values of the point are decreasing by 2. Common difference is -2

Recursive function is

$f(n+1)=f(n)-diffeference \\f(n+1)=f(n)-2$

where n=2,3,4...

Learn more : brainly.com/question/10676131

8 0

1 year ago

Need help understanding this problem please

faust18 [17]

f(g(x)) is a composite function:

$f(g(x))=f(\sqrt{x+5})=2\sqrt{x+5}-1$

Plug in <em>x</em> = 4:

$f(g(4)) = 2\sqrt{4+5}-1=2\sqrt9-1=2\cdot3-1=\boxed{5}$

so the answer is C.

7 0

2 years ago