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Mathematics

2 answers:

nlexa [21]3 years ago

8 0

Answer:

6 root 5 - 4 root 15

answer is c

root 5 x 6 - root 5 x 4 root 3

therefore answer is c

plz give brainliest

charle [14.2K]3 years ago

3 0

Answer:

The Correct answer is C.

Step-by-step explanation:

Some great resources for mathematics is (M)athway, (S)ymbolab, (P)hotomath, (M)athpapa, along with a few others. They help explain step by step for comprehension along with giving quick direct answers if you're in a hurry. Good Luck!

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Please help me answer questions 48 and 48 with the working out please. This is very urgent and i’m giving out 8 points not 5!!!

mariarad [96]

Answer: 65°

<u>Step-by-step explanation:</u>

$E=w(t_f-t_o)\\\\E: 10\ cubic\ feet\times \dfrac{1000\ BTU}{1\ cubic\ foot}\times \ 60\%\quad \rightarrow \quad E=6000\ BTU\\\\\\w:50\ gallons\times \dfrac{8\ pounds}{1\ gallon}\quad \rightarrow \quad w=400\ pounds\\\\\\\\E=w(t_f-t_o)\\\\6000=400(t_f-50)\\\\\dfrac{6000}{400}=\dfrac{400(t_f-50)}{400}\\\\.\quad 15=t_f-50\\\\\\.\quad 15=t_f-50\\.\ \underline{+50}\quad \underline{\quad \ +50}\\.\quad 65=t_f$