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4 years ago

Can you help me with these questions

Mathematics

1 answer:

dlinn [17]4 years ago

7 0

Answer:

see below (I hope this helps!)

Step-by-step explanation:

41. √20 = √4 * 5 = √4 * √5 = 2√5

43. The sum of interior angles in a triangle is 180°, therefore, x = 180 - (75 + 64) = 41°.

45. 15 + 5(2x - 3) = 15 + 5(2x) + 5(-3) = 15 + 10x - 15 = 10x

47. Complementary angles have a sum of 90°, therefore, x = 90 - 48 = 42°.

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What is the line that passes through points 6,9 and 11,2

Zepler [3.9K]

The final equation of line passing through (6,9) and (11,2)

$y=-\frac{7}{5}x+\frac{87}{5}$

Further explanation:

The general form of equation is:

$y=mx+b$

We have to find the slope first

$m=\frac{y_2-y_1}{x_2-x_1}\\Here\\(x_1,y_1)=(6,9)\\(x_2,y_2)=(11,2)\\Putting\ the\ values\\m=\frac{2-9}{11-6}\\=-\frac{7}{5}$

Putting the value of m in general form

$y=-\frac{7}{5}x+b$

For finding the value of b, putting (6,9) in equation

$9=-\frac{7}{5}(6)+b\\9=-\frac{42}{5}+b\\9+\frac{42}{5}=b\\b=\frac{45+42}{5}\\$

$b=\frac{87}{5}$

Putting the values of b and m

The final equation of line passing through (6,9) and (11,2)

$y=-\frac{7}{5}x+\frac{87}{5}$

Keywords: Equation of line, Slope

Learn more about equation of line at:

#LearnwithBrainly

5 0

3 years ago

PLEASE HELP!!

insens350 [35]

Answer:
(x+3), (x-3), and (x+4)

I’m not so sure about the question but I hope this helps

4 0

3 years ago

miles bought 3.75 acres of land in 1993. in 1197, he bought enough land to double his property. then in 2001, miles was forced t

Musya8 [376]

Miles has 3.45 acres of land now. You're welcome.

4 0

3 years ago

A line with a slope of -2 passes thru the point (4,7)

Tpy6a [65]

Answer:

y - 7 = -2(x - 4)

Step-by-step explanation:

We are asked to write the equation of a line in point slope form

Step 1 : find slope

We are given the slope to be -2

Slope m = -2

Step 2: substitute m into point slope form

y - y_1 = m( x - x_1)

y - y_1 = -2 ( x - x _1)

Step 3: substitute the point into the equation

y - y_1 = -2( x - x _1)

( 4 , 7)

x_1 = 4

y_1 = 7

y - 7 = -2( x - 4)

We don't need to open the bracket because we are asked to write the equation in a point slope form

6 0

3 years ago

PLEASE HELP!!!!!!!!!!!!!!!!

Crank

Answer:

i believe its the second to last one! im so sorry if its not correct

Step-by-step explanation:

4 0

4 years ago

Can you help me with these questions​

Can you help me with these questions