what equation represents the line that passes through the points (7,15) and (-4,4)?

Step-by-step explanation:

we would calculate the line of sight between the 2 lasers.

then we would create a line that goes through the middle point between the 2 lasers and is perpendicular to the line between the lasers. if we are lucky, then "You" is on the same perpendicular line. if not, we need to shift our starting point to a point where the perpendicular line hits the wall of the room.

by following that perpendicular line precisely, we we always have the same distance from both lasers.

Answer:

Step-by-step explanation:

Volume of the cube = s^3

s = 9cm

V = 9 * 9 * 9

V = 729 cm^3

d = mass / volume

d = 3645 / 729

d = 5 grams / cm^3

Answer:

Step-by-step explanation:

1/2 + 2/3 = 7/6

1/2 - 2/3 = - 1/6

Answer:

16 minutes

Step-by-step explanation:

all i know is 9+7 wahm bam yes mama its not it but ill give that answer >:D

Answer:

? = 120, ? = 145, respectively

Step-by-step explanation:

? + 60 = 180

? (+ 60 - 60) = 180 - 60

? = 120

35 + ? = 180

(35 - 35) + ? = 180 - 35

? = 145

Answer:

The answer is

2^20 divided by 3^8

Step-by-step explanation:

If do still cant get it... solve both and compare.

Answer:

A. B and F

Step-by-step explanation:

.................

The answer could be ∠B and  ∠F

This is the number 27 thousand

==============================================

Explanation:

There are three slots and 30 choices per slot. Repeats are allowed.

So there are 30*30*30 = 27,000 different locker combos.

Step-by-step explanation:

what the heck is that if someone's answers this they 9n x games mode

Answer:

yes

Step-by-step explanation:

u can change 2 1/3 to decimal and u will get 2.33.

therefire, 2.4 is bigger than 2 1/3

Answer:

60

Step-by-step explanation:

4a + 2b² -2(a-3b)

a = 2 and b = 4

4(2) + 2(4)² - 2(2-3(4))

8 + 32 -2(2-12)

40 - 2(-10)

40 +20

60

Therefore 60 is correct.

d. The sum of a Rational number and

Irrational number is always Irrational

Answer:

[tex] {x}^{2} + 5x = - 2[/tex]

arrange the equation according to general formula;

General formula: ax² + bx + c = 0

therefore:

[tex] {x}^{2} + 5x + 2 = 0[/tex]

Using the quadratic equation :

[tex]x = \frac{ - b± \sqrt{ {b}^{2} - 4ac} }{2a} \\ [/tex]

a » 1, b » 5, c » 2

substitute:

[tex]x = \frac{ - 5± \sqrt{ {5}^{2} - (4 \times 1 \times 2) } }{(2 \times 1)} \\ \\ x = \frac{ - 5± \sqrt{17} }{2} [/tex]

therefore solutions are;

[tex]{ \boxed{ \boxed{x_{1} = \frac{ - 5 + \sqrt{17} }{2} }}} \: \: and \: \: { \boxed{ \boxed{x_{2} = \frac{ - 5 - \sqrt{17} }{2} }}}[/tex]

x is -0.438 and -4.562

Answer:

She will need to buy 39.75 meters of foam

Step-by-step explanation:

Answer:

m<RQP = 62°

Step-by-step explanation:

m<RQP = m<PQB + m<RQB

m<RQP = 38° + 24°

m<RQP = 62°

Answer: 45 (cm)

Step-by-step explanation:

Since the discs have the same thickness, we will think about the areas.

Let say x the new radius:

[tex]\pi*5^2+\pi*20^2+\pi*40^2=\pi*x^2\\\Longrightarrow\ 5^2+20^2+40^2=x^2\\\\\Longrightarrow\ 2025=x^2\\\\\Longrightarrow\ x=\sqrt{2025} =45[/tex]

Answer:

X (2, 1)

Y (2, 3)

W (5, 5)

Step-by-step explanation:

The current points are:

X (-2, -1)

Y (-2, -3)

W (-5, -5)

Now, after rotating 180 degrees around the origin, here is what points Y, Y, and W would look like:

X (2, 1)

Y (2, 3)

W (5, 5)

Plot these new points on the graph, and you'll have a new figure which will be rotated to 180 degrees.

I have also provided you with a graph, showing both, the original and the rotated version, below.

Answer:

r =√[3V/(π h)]

Step-by-step explanation:

V = ⅓ × π r²h

=> multiplied by 3

3V = π r² h

=> find r²

r² = 3V/(π h)

=> find r

r =√[3V/(π h)]

Answer:

[tex]r=\sqrt{\dfrac{3V}{\pi h}}[/tex]

Step-by-step explanation:

Given equation:

[tex]V=\dfrac{1}{3} \times \pi r^2 h[/tex]

To isolate [tex]r[/tex], multiply both sides by 3:

[tex]\implies V \times 3=\dfrac{1}{3} \times \pi r^2 h \times 3[/tex]

[tex]\implies 3V= \pi r^2 h[/tex]

Divide both sides by [tex]\pi h[/tex]:

[tex]\implies \dfrac{3V}{\pi h}= \dfrac{\pi r^2 h}{\pi h}[/tex]

[tex]\implies \dfrac{3V}{\pi h}=r^2[/tex]

Square root both sides:

[tex]\implies \sqrt{r^2}=\sqrt{\dfrac{3V}{\pi h}}[/tex]

As the radius is positive only:

[tex]\textsf{Apply radical rule} \quad \sqrt{a^2}=a, \quad a \geq 0[/tex]

[tex]\implies r=\sqrt{\dfrac{3V}{\pi h}}[/tex]

Answer:

b.

Step-by-step explanation:

a+b = c

so a is c-b then you have the answer

Answer:

-3a^2= -3*(-6)^2

Step-by-step explanation:

-3a^2 = -3*a^2 = -3*(-6)^2

Answer:

Page 3 - the y-intercept would remain at 5 and the slope would be 3 times the upward slope.

Page 5 - the y-intercept would remain at -2 and the slope would be 1/4 instead of 5

Step-by-step explanation:

In point slope form the slope and y-intercept can be read directly from the equation.

y = mx + b where m is the slope and b is the y-intercept.

u + u + 4 + u + 4 =

= u + u + u + 4 + 4 = 3u + 8 ← the end

Answer:

BC ≈ 8.6

Step-by-step explanation:

Using Pythagoras' identity in the right triangle , that is

BC² = AB² + AC² = 7.3² + 4.6² = 53.29 + 21.16 = 74.45 ( square root both sides )

BC = [tex]\sqrt{74.45}[/tex] ≈ 8.6 ( to 1 dec. place )

Step-by-step explanation:

-12x+7=29

or,-12x=-29-7

or,-12x=36

or,x=-36+12

x=-24

Answer

Answer:

Question 1: c) 12.5 m/s

Question 2: a) The object is not moving.

Step-by-step explanation:

Question 1: 100(m) divided by 8(s) equals 12.5(m/s)

So she goes 12.5 meters per second (m/s).

Question 2: Distance = x variable (horizontal) because the distance depends on the time. Time = y (vertical) because the time is independent.

If the points on the distance or x axis stay the exact same while the time or y axis continues to change, this will lead to a straight horizontal line on a graph and mean that whatever it is being measured for distance, is staying still or 'constant'.

Answer:

b

Step-by-step explanation:

the answer is 0.7272727273 in total

Answer:

6 sq.cm

Step-by-step explanation:

base = 4 cm

height = 3 cm

[tex]Area =\dfrac{1}{2}* \ base * \ height\\\\= \dfrac{1}{2}*4 * 3\\\\= 2 *3\\\\ 6 \ cm^{2}[/tex]