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2 years ago

Y=2x+30. I need help

Mathematics

1 answer:

natali 33 [55]2 years ago

6 0

Answer:

x= -15

Step-by-step explanation:

divide 30 by 2 then flip the sign

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After 9 new members joined the ski club, there were 38 members. How many members had been in the club previously?

dezoksy [38]

Answer:

Previously, there were 29 members in the ski club

Step-by-step explanation:

Subtract 9 from 38

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2 years ago

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What is y = 5 and it’s slope

e-lub [12.9K]

Answer:

what do you mean bro ?

Step-by-step explanation:

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3 years ago

Select the correct answer from each drop-down menu.

finlep [7]

Answer:

Coordinates of point B are (10,-4)

Coordinates of point D are (3.6,-0.4)

Step-by-step explanation:

1) Point C(3.6, -0.4) divides in the ratio 3 : 2. If the coordinates of A are (-6, 5), the coordinates of point B are ____

Let the coordinates of B be $(x_2,y_2)$

Coordinates of A = $(x_1,y_1)=(-6,5)$

Coordinates of C=(x,y)=(3.6,-0.4)

We will use section formula over here

$x=\frac{mx_2+nx_1}{m+n} , y = \frac{my_2+ny_1}{m+n}$

m:n=3:2

$3.6=\frac{3x_2+2(-6)}{3+2} , -0.4=\frac{3y_2+2(5)}{3+2}3.6 \times 5 = 3x_2-12, -0.4 \times 5 = 3y_2+10\\18+12=3x_2 , -2=3y_2+10\\30=3x_2 , -12=3y_2\\10=x_2, -4=y_2\\$

Coordinates of B = (10,-4)

2)If point D divides in the ratio 4 : 5, the coordinates of point D are ____

(fraction)

Let the coordinates of D be $(x,y)$

Coordinates of A = $(x_1,y_1)=(-6,5)$

Coordinates of B= $(x_2,y_2)=(10,-4)$

We will use section formula over here

$x=\frac{mx_2+nx_1}{m+n} , y = \frac{my_2+ny_1}{m+n}$

m:n=3:2

$x=\frac{3(10)+2(-6)}{3+2} , y=\frac{3(-4)+2(5)}{3+2}\\x=3.6,y=-0.4$

Coordinates of point B are (10,-4)

Coordinates of point D are (3.6,-0.4)

4 0

2 years ago

Find the volume of the object 5ft 12ft pretty easy!

Volgvan

Answer:

V=75pi ft^3 or 235.619 ft^3

Step-by-step explanation:

area of base times length

area of circle = pi * r^2 where r = 1/2 * diameter

A = pi * 2.5^2

A= 6.25pi ft^2

multiply by length

V= 6.25pi*12

V=75 pi

5 0

2 years ago

Determine whether the conjecture is true or false. Give a counterexample for any false conjecture. Given: Point B is in the inte

Arte-miy333 [17]

True because point B is the interior

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3 years ago

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