Need help ASAP!!!!!!!

Mathematics

2 answers:

lutik1710 [3]2 years ago

6 0

I’m pretty sure it’s C I think

natima [27]2 years ago

4 0

Answer:

Step-by-step explanation:

You can subtract normally when the square roots are the same( like in your problem) but the squares stay they same and the numbers on the outside change.

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Pls help me solve this volume problem

Ostrovityanka [42]

Answer:

220

Step-by-step explanation:

First, find the area of the bottom prism.

5x10x3 = 150.

Then find the area of the top prism.

The trapezoid's area is 7, multiply this by 10.

Add your quantities together.

You get 220.

8 0

2 years ago

Plz help on rationalising surds

Fittoniya [83]

(√5 + 3)² / √20=
((√5 + 3)² / √20)(√20/√20)=
(√20(√5 + 3)²) / (√20)²=
√20(5+6√5+9) /20=
√20 (14+6√5) /20=
(14√20 +6√100) /20=
(14√20 +60) / 20=
(14(√4√5) + 60) /20=
(14(2)(√5)+60) / 20=
(28√5+60) /20=
(7√5+15) / 5

Answer:(√5 + 3)² / √20= (7√5+15) / 5

3 0

2 years ago

Find the area of the trapezoid below. 4 cm 3 cm 8 cm

AnnyKZ [126]

Answer:

4 + 8 / 2 * 3 = 18

4 + 8 = 12

12 / 2 = 6

6 * 3 = 18

Step-by-step explanation:

*Hope this helps*

4 0