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4 years ago

What is the value of x 25 points!!!!!!!!!!!!!!!

Mathematics

1 answer:

Orlov [11]4 years ago

4 0

A triangle's interior angles will add up to be 180°. If you take what you have...the 39° and 141°...and add them up to be 141. Subtract the 141 from the 180° and you will get the value of x...

x° = 39°

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Jill bought 3 cookies and 2 cupcakes for $12.25. Kim bought 5 cookies and 1 cupcake for $14.00.

ziro4ka [17]

Are you asking to find the difference?

7 0

3 years ago

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write the equation of the line that passes through the point (-1,-6) and is perpendicular to a line that passes through the poin

Burka [1]

Answer:

$y=\frac{2}{3}x-\frac{16}{3}$

Step-by-step explanation:

step 1

Find the slope of the given line

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have

(-2,5) and (-4,8)

substitute the values in the formula

$m=\frac{8-5}{-4+2}$

$m=\frac{3}{-2}$

$m=-\frac{3}{2}$

step 2

Find the slope of the perpendicular line to the given line

we know that

If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)

$m_1*m_2=-1$

$m_1=-\frac{3}{2}$ ----> slope of the given line

therefore

$m_2=\frac{2}{3}$ ---> slope of the perpendicular line to the given line

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=\frac{2}{3}$

$point\ (-1,-6)$

substitute

$y+6=\frac{2}{3}(x+1)$

step 3

Convert to slope intercept form

$y=mx+b$

isolate the variable y

$y+6=\frac{2}{3}x+\frac{2}{3}$

$y=\frac{2}{3}x+\frac{2}{3}-6$

$y=\frac{2}{3}x-\frac{16}{3}$

4 0

4 years ago

I really need help on this pls :)

Rom4ik [11]

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3 0

3 years ago

Read 2 more answers

A. k/5 = 3; k=<br> B. 3.5d = 70; d=<br> C. 4 1/2 = 1 1/2n; n=<br><br> Solve each equation.

Kryger [21]

Answer:

Step-by-step explanation:

A. k/5 = 3: Isolate k by multiplying both sides of this equation by 5:

k = 15

B. 3.5d = 70; Divide both sides by 3.5, obtaining d = 20

C. 4 1/2 = 1 1/2n; Rewrite 4 1/2 and 1 1/2 as improper fractions:

9/2 = (3/2)n. Now multiply both sides by (2/3): 3 = n

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3 years ago

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Which is the correct fair share for the

Fantom [35]

It is 1/3
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3 years ago