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hram777 [196]
3 years ago
11

Help. pls. i will mark brainliest.

Mathematics
2 answers:
Gelneren [198K]3 years ago
5 0

Answer:

pretty sure its b.

hope this helps!

svlad2 [7]3 years ago
5 0

Answer:

i think its none of the above

Step-by-step explanation:

because it can't be vertical since they need to be on opposite sides

it's not complementary because it doesn't equal to 90

it can't be supplementary because line D is not straight

so that's why i think it's none of the above

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An office building loses a third of its heat between sundown and midnight and an additional half of the original amount of heat
Mekhanik [1.2K]

Answer:

\dfrac{1}{16}

Step-by-step explanation:

Proportion of Heat Loss Between sundown and midnight=\dfrac{1}{3}

Proportion of Heat Loss between midnight and 4 AM  =\dfrac{1}{2}

Proportion of Total Heat Already Lost =\dfrac{1}{3}+\dfrac{1}{2} =\dfrac{5}{6}

Proportion of Remaining Heat =1-\dfrac{5}{6}=\dfrac{1}{6}

Between 4 AM and 5 AM, five-eighths of the remaining heat is lost.

Proportion of Heat Loss between 4 AM and 5 AM= \dfrac{5}{8}$ X \dfrac{1}{6} = \dfrac{5}{48}

Therefore, Proportion of Remaining Heat Left =\dfrac{1}{6}- \dfrac{5}{48}=\dfrac{1}{16}

We therefore say that:

\dfrac{1}{16}$ of the total heat loss occurs between 5 AM and sunrise.

6 0
3 years ago
Log10(x^2+1)=1 <br> .......
sesenic [268]
2^{x} = 4 ----\ \textgreater \  x =  log_{2}4&#10;&#10; x^{2}  = 4 ----\ \textgreater \  x =  \sqrt{4}
5 0
3 years ago
(30 POINTS) Select the correct answer.
gulaghasi [49]
Im pretty sure the correct answer is a
6 0
3 years ago
Read 2 more answers
-2(b-5)=16 x when b is 3 is
Kitty [74]

Answer:

When B is 3, it is not answerable. The sides are not equal, if it were -3 the answer would be 16.

3 0
2 years ago
3x = 2x + 7<br> 4 5<br> x = ?
Alexxandr [17]
<h2>Solve for <em>x</em> | Solution and Explanation</h2>

_______________________________________________

We are given the following expression:

\frac{3x}{4} =\frac{2x+7}{5}

1. Apply fraction cross multiply (if \frac{a}{b}=\frac{c}{d}, then a × d = b × c)

  • 3x × 5 = 4(2x+7)

==================

2. Simplify.

  • 15x=4(2x+7)

==================

3. Expand 4(2x + 7).

  • 15x=8x+28

===========================

4. Subtract 8x from both sides.

  • 15x-8x=8x+28-8x

=======================

5. Simplify.

  • 7x=28

=======================

6. Divide both sides by 7.

  • \frac{7x}{7}=\frac{28}{7}

========================

7. Simplify.

  • x=4

=========================

Hope this helps!

6 0
1 year ago
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