3 years ago

Someone to work out this sum in factorisation = 28-21w+14

Mathematics

1 answer:

Arisa [49]3 years ago

6 0

14-21w i believed based on my learning

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How many telephone numbers are there in the 509 area code? Telephone numbers may not start with the number 0 or 1. They also mus

anastassius [24]

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3 years ago

Hey if you're willing to help me with this, it will be very much appreciated, thanks maties and mates.

Nastasia [14]

Answer:

Width=37in

Length=55in

Step-by-step explanation:

Let x in be the width dimension, the length dimension will be x+18 in. Area of a rectangle is calculated as A=lw. Given the area as2143 sq in, x can be calculated as:

$Area= x(18+x)\\\\=18x+x^2\\\\$

#Substitute for every x in our function to find the true value of x:

$x=37\\\\A=x^2+18x\\\\=37^2+18\times37\\\\=2035 \ in^2$ #l=37+18=55in

for x=38:

$x=38\\\\A=x^2+18x\\\\=38^2+18\times38\\\\=2128 \ in^2$ #l=38+18=56in

For x=39:

$x=39\\\\A=x^2+18x\\\\=39^2+18\times39\\\\=2223 \ in^2$ #l=39+1854in

From the calculations above, A television with a width of 37 in and length 55in has its area closest to 2143 sq in.

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3 years ago

Can somebody pls help

Delvig [45]

The answer is A domain

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3 years ago

the surface area of a square pyramid is 84 square inches. the side length of the base is 6 inches. what is the value of x?

Sladkaya [172]

The formula is(V=B•h)(84•6)

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3 years ago

Vanessa earns a base salary of $400.00 every week with an additional %5, percent commission on everything she sells. Vanessa sol

Leona [35]

$482.5 is the FINAL ANSWER

To find commission:
We can use the base of 100% being 1650
We can use 5% because thats her commission
Use: 100(x)=1650(5) -> 100(x)=8250 after doing math, youll get the outcome of 82.5 commission

To find the total:
Just add that commission to her total being 82.5 + 400 = 482.5 $

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3 years ago