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3 years ago

Find equation where line passes through (7,8) and perpendicular to line y=8

1 answer:

5 0

Since in y=8, the slope is 0 (because there is no x) and b is 8 in y=mx+b, we know that the perpendicular line is x=(something) because the perpendicular lines of y=<number> are x=<number> due to that y=<number> equations are strictly horizontal while x=<number> equations are strictly vertical. Since we know that x=<number> has to pass through (7, 8), x =7

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Lilly bought two pieces of land. The

Musya8 [376]

Answer:

50*40 = 2000 sq feet

75*50 = 3750 sq feet

Step-by-step explanation:

5 0

3 years ago

Find the coordinates of the missing endpoint if B is the midpoint of AC. C(-5,4), B(-2,5) I need the steps and answer pls and ty

mylen [45]

$\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
A&({{ x}}\quad ,&{{ y}})\quad 
% (c,d)
C&({{ -5}}\quad ,&{{ 4}})
\end{array}\qquad
% coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)$

$\bf \left( \cfrac{-5+x}{2}~,~\cfrac{4+y}{2} \right)=\stackrel{B}{(-2,5)}\implies 
\begin{cases}
\cfrac{-5+x}{2}=-2\\\\
-5+x=-4\\
\boxed{x=1}\\
----------\\
\cfrac{4+y}{2}=5\\\\
4+y=10\\
\boxed{y=6}
\end{cases}$

3 0

3 years ago

a mass of 40 grams cause a spring to stretch to the length of 40 cm, A mass of 60 grams causes it to stretch to a lenght of 6.7

uysha [10]

Answer

Part 1: l = -1.665g

Part 2: Max-mum the spring can support.

Part 3: The spring constant.

Explanation

Gradient is also called the slope.

Slope = (change in y) /(change in x)

= (60 -40)/(6.7 - 40)

= 20 / -33.3

= - 0.600600601

Since the graph is a straight line, the equation would be,

m ∝ l

m = kl Where K is the constant.

g = -0.60l

l = -1.665g

Part 2

The Y-intercept represent the mix-mum weight the spring can support.

part 3

The slope in this case represent the spring constant.

8 0

4 years ago

What is the area of a rectangle with side lenghts of 5/12 foot and 2/3 foot

Crank

Answer:

0.277 ft^2

Step-by-step explanation:

5/12 * 2/3 = 0.277

6 0

3 years ago

Read 2 more answers

The ratio of black socks to white socks in the sock drawer is 1:4. There are 8 black socks. How many white socks are there?

inn [45]

Answer:

Step-by-step explanation:

7 0

3 years ago