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andrew-mc [135]
2 years ago
8

The rationalising factor of 3 root + 2 is​

Mathematics
1 answer:
aleksandrvk [35]2 years ago
3 0

Answer:

Rationalization factor of √2 + √3 is √2 - √3.

Trust me mark me as brainliest

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The length of a rectangle is 12 units longer than the width. The perimeter is 7 times the width. Find the length and the width o
katen-ka-za [31]

Log explanation below; answer is at bottom.

If the length, l, is 12 units longer than the width, w, then w = l - 12. If the perimeter, p,

p = 2l +2w,

is 7 x w, then

w = p/7

When two things are set equal to the same variable, they are equal to each other, so,

l - 12 = p/7

Now you need to get rid of the p so you are only working with one variable. To do this you plug in whatever p is equal to for p, so,

l - 12 = (2l + 2w)/7 now to get rid of the w do the same thing we did with p just for w. So,

l - 12 = (2l + 2(l - 12))/7

To solve this you want to multiply both sides by 7 first to get rid of the fraction.

7l - 84 = 2l + 2(l - 12)

Next you want to distribute the 2 over the l and the 12.

7l - 84 = 2l + 2l - 24

Next you want to combine like terms on each side.

7l - 84 = 4l - 24

Next add 84 and subtract 4l from sides to isolate the variable.

3l = 60

Now divide each side by 11 to get your answer.

l = 20.

To find the width,

w = l - 12  

Just plug in and solve.

w = 20 - 12

w = 8

So your length and width are 20 and 8.

l = 20

w = 8

7 0
3 years ago
HELP FOR 10 POINTS!!!
Kay [80]
20×8=160
5×8=40
10×8=80
4×8=32
15×8=120

160+40+80+120+32=432
432×2=864
864 is the answer,so your answer is b
6 0
3 years ago
-34 + 52 + -18 (Intergers!!)
enyata [817]
We need to follow PEMDAS

We have to do the addition and subtraction from left to right.

Rearrange the terms

52 - 18 - 34

52 -1(18+34)

52 -1(52)

52 - 52

0



So, at the end, your final answer is 0.
3 0
3 years ago
12% of 250 is what answer
Bogdan [553]
The answer is 30.

Hope this helped :)
alisa202
6 0
3 years ago
HELP there due to tomorrow :/
Cerrena [4.2K]

Answer:

First Answer:

$15,060.

Second Answer:

9.96 miles.

Third Answer:

$3.27.

Step-by-step explanation:

First Question:

Cost of the rented car = 50 + 0.20 = $50.20

How much did Matt's family spend for the car:

1 mile = $50.20

300 miles = ?

300 × 50.20

= $15,060.

Second Question:

If Hayden spent $500 for her rented car, how many miles did she drive:

$50.20 = 1 mile

$500 = ?

500 ÷ 50.20 = 9.96 miles.

Third Question:

What is the cost per gallon of gas:

24 gallons = $78.48

1 gallon = ?

78.48 ÷ 24 = $3.27.

5 0
3 years ago
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