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3 years ago

Lines a, b, c, and d Intersect as shown.

Mathematics

1 answer:

Mnenie [13.5K]3 years ago

8 0

Answer:

95 is the answer I took the test

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(01.05 LC)Which fraction is equivalent to negative 3 over 7?

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2. 3 over negative 7

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Which simplified fraction is equal to 0.17 repeating?

quester [9]

Answer: 16/90

Solution: 16 divided by 90 = 0.17 repeating

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3 years ago

6) BRAINLIEST + 15+ POINTS :D

o-na [289]

Answer:

3.35

Step-by-step explanation:

Take the total cost and subtract off the cost of the tax

We need to determine the tax

71.02 = original cost + original cos* tax rate

71.02 = original cost + original cost* .06

71.02 = original cost (1+ .06)

71.02 = original cost (1.06)

Divide each side by 1.06

71.06/1.06 = original cost before tax

67 = original cost before tax

Now to find the cost of each light bulb

Divide by the number of light bulbs

67/20=3.35

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3 years ago

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Subtracting fractions...<br><br> 3 4 <br> — - — = <br> 4 13

7nadin3 [17]

Hello there,

In order to substract fractions, you need to put all the fractions to the same denominator.

$\frac{3}{4} -\frac{4}{13}$

$=\frac{3*13}{4*13} -\frac{4*4}{13*4}$

$=\frac{39}{52} -\frac{16}{52}$

$=\frac{23}{52}$

So bob's your uncle, the answer would be :

$=\frac{23}{52}$

Hope this helps !

Photon

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3 years ago

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The number of country A forces in country B decreased to approximately 34,000 in 2014 from a high of about 100,000 in 2008. The

Murrr4er [49]

Answer:

2009

Step-by-step explanation:

The question can be interpreted as:

$f(x) = -1.330x^2 + 5.149x + 5.517$

Required

Determine x when f(x) = 10.5

Substitute 10.5 for f(x) in $f(x) = -1.330x^2 + 5.149x + 5.517$

$10.5 = -1.330x^2 + 5.149x + 5.517$

Collect Like Terms

$-1.330x^2 + 5.149x + 5.517-10.5=0$

$-1.330x^2 + 5.149x -4.983=0$

Using quadratic formula

$x = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}$

Where

$a = -1.330$

$b = 5.149$

$c = -4.983$

$x = \frac{-5.149 \± \sqrt{5.149^2 - 4*-1.330*-4.983}}{2*-1.330}$

$x = \frac{-5.149 \± \sqrt{0.002641}}{-2.660}$

$x = \frac{-5.149 \± 0.0514}{-2.660}$

Split:

$x = \frac{-5.149 + 0.0514}{-2.660}\ or\ x = \frac{-5.149 - 0.0514}{-2.660}$

$x = \frac{-5.0976}{-2.660}\ or\ x = \frac{-5.2004}{-2.660}$

$x = 1.92\ or\ x = 1.96$

Both values of x approximates to 2.

So:

$x = 2$

2 years after 2007 is 2009.

Hence, the funding is about $10.5 billion in 2009

4 0

3 years ago