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erastova [34]
3 years ago
13

Which one is smaller 2/7 or 1/21

Mathematics
2 answers:
Colt1911 [192]3 years ago
8 0
1/21 is smaller than 2/7
densk [106]3 years ago
5 0
  • Same the denominator

\\ \sf\longmapsto \dfrac{2}{7}=\dfrac{2\times 3}{7\times 3}=\dfrac{6}{21}

  • 6/21>1/21

Hence 2/7>1/21

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Through (-2, -3), perp. to y = x- 2/1
WARRIOR [948]

Answer:

The equation of line passing through point ( - 2 , - 3 ) and slope 1 is          y = x - 1

Step-by-step explanation:

Given equation of line as :

y = x - \frac{2}{1}

i.e y = x - 2

The standard equation of line is given as

y = m x + c ,

where m is the slope of the line and c is the y-intercept

Now, comparing the line , we have

Slope = m = 1

Now, The other line is perpendicular to the first line

So, from perpendicular property of line

The product of their slope = - 1

Let The slope of other line = M

So,  m × M = - 1

Or,  ( - 1 ) × M = - 1

or M = \frac{- 1}{- 1}

∴  M = 1

So , The slope of other line = M = 1

∵ The other line is passing through point ( x , y ) =  ( - 2 , - 3 )

Now, satisfying the points and slope with standard line equation

I.e y = M x + c

or, - 3 = 1 × ( - 2 ) + c

or, -3 = - 2 + c

or, - 3 + 2 = c

∴  c = - 1

So, The intercept of other line = c = - 1

Now The equation of line with slope intercept

y = 1 × x + ( - 1 )

Or, y = x - 1

Hence The equation of line passing through point ( - 2 , - 3 ) and slope 1 is  y = x - 1       Answer

5 0
3 years ago
Which is the solution set of the compound inequality 3.5x-10>-3and 8x-9<39
dimulka [17.4K]

So to solve for an inequality, you must isolate the variable, in this case x, to one side.

Starting with 3.5x - 10 > -3, firstly add both sides by 10:

3.5x > 7

Next, divide both sides by 3.5 and your first half is:

x > 2

Next with 8x - 9 < 39, firstly add both sides by 9:

8x < 48

Next, divide both sides by 8 and your second half is:

x < 6

<u>Putting it together, your final answer is x > 2 and x < 6 or 2 < x < 6.</u>

8 0
3 years ago
Find the surface area of the figure. Use 3.14 for π and round to the nearest hundredth if necessary.
Jet001 [13]

The formula for the surface area of a sphere is

\begin{gathered} A=4\cdot\pi\cdot r^2 \\ A=4\cdot3.14\cdot5^2 \\ A=314 \end{gathered}

3 0
1 year ago
Fill in the blanks so the left side is a perfect square trinomial. That is, complete the square.
wlad13 [49]


Focus on 12x. Divide the 12 by 2. = 6.

The answer is (x+6)^2. On the right side


On the left side. Use the 6 and square it. 6^2 =36

Answer::: x^2 + 12x + 36 = (x+6)^2
6 0
3 years ago
Evaluate. 43⋅(10025)−50
Roman55 [17]
The dot means to multiply
so 43 x 10025 -50
since BEDMAS is applied,
we would do the multiplication first
43 x 10025 = 431075 
and <span>431075 - 50 is 431025
FINAL ANSWER: 431025</span>
8 0
3 years ago
Read 2 more answers
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