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3 years ago

My brother is 5 years older than me. My sister is 3 years younger than me. a How old will my sister be when I am 17?

Mathematics

1 answer:

pentagon [3]3 years ago

8 0

I think the answer is 14

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A swing set is going to be placed over a region of mulch that is shaped like a trapezoid. The bases of the trapezoid have a leng

shutvik [7]

Answer:

114.8

Step-by-step explanation:

The formula for a trapezoid is ((a+b/2)h

You need to plug everything in, ((12+15)/2)8.5= 114.8

6 0

3 years ago

Write an equation parallel to x - 3y = 9 that passes through the point ( 3, -1 )

ivolga24 [154]

Answer:

Step-by-step explanation:

Use the point-slope formula.

y - y_1 = m(x - x_1) .... x_1 = 3 and y_1 = - 1

m is the slope to x - 3y = 9 because (lines are parallel )

calculate : m by equation x - 3y = 9 :

x = 3y +9

divid by : 3 1/3 x = y + 3

y = (1/3) x - 3 so : m = 1/3

an equation parallel to x - 3y = 9 that passes through the point ( 3, -1 ) is :

y +1 = (1/3)(x - 3)

4 0

3 years ago

Given f(x) = x^4 -3x^3 +10x^2 -9x +1. Is (x-2) a factor? Is x=-3 a zero? Find f(-1) show all work.

gizmo_the_mogwai [7]

Step-by-step explanation:

(x-2) is not a factor

x = -3 is not a zero

<h2>Please mark my answer as the brainliest for further answers :)</h2>

3 0

2 years ago

Multiply. 32√⋅28√⋅3√⋅6√

STALIN [3.7K]

Answer: 48√7

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Prove: The segments joining the midpoints of the opposite sides of a quadrilateral bisect each other.

zhuklara [117]

Answer:

$R=(\dfrac{b}{2},0)$

$S=(\dfrac{b+c}{2},\dfrac{d}{2})$

$T=(\dfrac{c+e}{2},\dfrac{d+f}{2})$

$U=(\dfrac{e}{2},\dfrac{f}{2})$

$M=(\dfrac{b+c+e}{4},\dfrac{d+f}{4})$

$M=(\dfrac{c+b+e}{4},\dfrac{d+f}{4})$

Step-by-step explanation:

We are given coordinates as:

$A(0,0)\ ,\ B=(b,0)\ ,\ C=(c,d)\ ,\ D=(e,f)\\\\R=(\dfrac{b}{2},0)\ ,\ S=(\dfrac{b+c}{2},\dfrac{d}{2})\ ,\ U=(\dfrac{e}{2},\dfrac{f}{2})\ ,\ T=(\dfrac{c+e}{2},\dfrac{d+f}{2})$

Now, it is given that M is the mid-point of the line segment RT and of US.

Hence, the coordinates of M is given as:

By taking the mid-point of side RT.

$M=(\dfrac{\dfrac{b}{2}+\dfrac{c+e}{2}}{2},\dfrac{0+\dfrac{d+f}{2}}{2}})\\\\\\i.e.\\\\\\M=(\dfrac{b+c+e}{4},\dfrac{d+f}{4})$

By taking the mid-point of side US.

$M=(\dfrac{\dfrac{e}{2}+\dfrac{b+c}{2}}{2},\dfrac{\dfrac{f}{2}+\dfrac{d}{2}}{2})\\\\\\i.e.\\\\\\M=(\dfrac{b+c+e}{4},\dfrac{d+f}{4})$

4 0

3 years ago

Read 2 more answers