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3 years ago

What is the first step needed to solve 2 over 5 multiplied by x minus 6 equals negative 16?

Mathematics

2 answers:

ololo11 [35]3 years ago

8 0

B.)Add 6 to both sides

labwork [276]3 years ago

5 0

The answer to your question is C.

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An electric bill in May was $112.00. In June, the bill was $163.00. What is the percent of increase, rounded to the nearest tent

laila [671]

Answer:

d. 45.5%

Step-by-step explanation:

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3 years ago

Find the slope of the line that passes through (10, 1) and (6,2)

Daniel [21]

Answer:

m=-1/4

Step-by-step explanation:

2-1/6-10=1/-4

-1/4 is the slope

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2 years ago

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The length of each side of an equilateral triangle is increased by 20%, resulting in triangle ABC. If the length of each side of

kompoz [17]

Answer: Area of ΔABC is 2.25x the area of ΔDEF.

Step-by-step explanation: Because equilateral triangle has 3 equal sides, area is calculated as

$A=\frac{\sqrt{3} }{4} a^{2}$

with a as side of the triangle.

Triangle ABC is 20% bigger than the original, which means its side (a₁) measures, compared to the original:

a₁ = 1.2a

Then, its area is

$A_{1}=\frac{\sqrt{3} }{4}(1.2a)^{2}$

$A_{1}=\frac{\sqrt{3} }{4}1.44a^{2}$

Triangle DEF is 20% smaller than the original, which means its side is:

a₂ = 0.8a

So, area is

$A_{2}=\frac{\sqrt{3} }{4} (0.8a)^{2}$

$A_{2}=\frac{\sqrt{3} }{4} 0.64a^{2}$

Now, comparing areas:

$\frac{A_{1}}{A_{2}}= (\frac{\sqrt{3}.1.44a^{2} }{4})(\frac{4}{\sqrt{3}.0.64a^{2} } )$

$\frac{A_{1}}{A_{2}} =$ 2.25

The area of ΔABC is 2.25x greater than the area of ΔDEF.

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3 years ago

What is the median set of this data set 22 37 49 15 72

Alexandra [31]

Answer:37

Step-by-step explanation:

first you put them in order from least to greatest

which would be 15,22,37,49,72

then the middle number would be your answer hope this helps!

-MalStar

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3 years ago

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Can someone pleaseee help me

Nookie1986 [14]

Answer:

120 degrees

Step-by-step explanation:

Ok, so if you know that 5 is 120 degrees then 1 is 120 degrees because the angles will be corresponding when it is a set of lines that are parallel bisected by a line. So 1 is corresponding to 5 and 2 to 6 and 3 to 7 and 4 to 8.

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3 years ago

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