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3 years ago

Please answer for tons of love :3

Mathematics

1 answer:

lyudmila [28]3 years ago

7 0

Answer:

17x +4

[line]

Step-by-step explanation:

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6.24 x 10-5 - 4.091 x 103 =

castortr0y [4]

Is the 10 taking away 5 or was it meant to me 10.5 ?

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3 years ago

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Add -4 + 2/3 A) -5 2/3 B) -4 2/3 C) -3 2/3 D) -3 1/3

kodGreya [7K]

Answer:

Step-by-step explanation:

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3 years ago

What is the measure of X? angles are not necessarily drawn to scale

Schach [20]

Answer:

xº=71º

Step-by-step explanation:

Take the triangle BDH

Once the sum of interior angles of a triangle is 180º:

40º+31º+yº=180º

71º+yº=180º

yº=109º

Once yº and xº are supplementary angles (add up to 180º):

yº+xº=180º

109º+xº=180º

xº=71º

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3 years ago

WILL GIVE BRAINLIEST - What is the length of the hypotenuse of the base? *Picture linked below*

Citrus2011 [14]

Answer:

4sqrt(2) cm

Step-by-step explanation:

a^2 + b^2 = c^2

4^2 + 4^2 = c^2

32 = c^2

sqrt(32) = c

c = 4sqrt(2)

6 0

2 years ago

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Working together to palms can drain a certain pool in three hours if it takes the older pump nine hours to drain the pool by its

andreyandreev [35.5K]

Answer:

It would take the newer pump 4.5 hours to drain the pool

Step-by-step explanation:

Let's investigate first what is the fraction of the job done in the unit of time (hour in this case) by each pump if the work individually:

older pump: if it takes it 9 hours to complete the job, it does $\frac{1}{9}$ of the job in one hour.

newer pump: we don't know how long it takes (this is our unknown) so we call it "x hours". Therefore, in the unit of time (in one hour) it would have completed $\frac{1}{x}$ of the total job.

both pumps together: since it takes both 3 hours to complete the job, in one hour they do $\frac{1}{3}$ of the job.

Now, we can write the following equation about fractions of the job done:

The fraction of the job done by the older pump plus the fraction of the job done by the newer pump in one hour should total the fraction of the job done when they work together. That is in mathematical terms:

$\frac{1}{9} +\frac{1}{x} =\frac{1}{3}$

and solving for x:

$\frac{1}{9} +\frac{1}{x} =\frac{1}{3} \\x+9=3x\\2x=9\\x=\frac{9}{2} \,\,hours\\x = 4.5\,\,hours$

4 0

3 years ago