Please help me with this please and thank you

Mathematics

1 answer:

Alina [70]1 year ago

3 0

Step-by-step explanation:

y = ax^n + bx^(n-1) ... + z

(0, 1) tells us that the constant term z = 1.

because x = 0 eliminates all other terms. and as the sum is 1, that means z = 1.

for the other pairs I strongly suspect

(-1, 3) : 2×(-1)² + 1 = 2×1 + 1 = 3

(-2, 9) : 2×(-2)² + 1 = 2×4 + 1 = 9

so, the fitting equation is

y = 2x² + 1

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Find the approximate area of the triangle y x> O 30 square units O 15 square units 21 square units 45 square units

Fiesta28 [93]

Answer:

Step-by-step explanation:

a right triangle is half of a rectangle and the area of a rectangle is

area of rectangle = length × width

Area of a triangle is one half times the length times the width

area of triangle = 1/2 × length × width

in this case

length is the number of the y units

width is the number of x axis unit

area of triangle = 1/2 × length × width

area of triangle = 1/2 × (y units) × (x units) you need to count and insert

the number of units into the

equation

area of triangle = 1/2 × (??? y units ) × (??? x units ) do the math yourself

and see if you get one of

answers

6 0

2 years ago

The diagonals of a rhombus are 21 m and 32 m. What is the area of the rhombus? 30 POINTS

Wittaler [7]

I have included attachment below

so since a rhombus is 2 pairs of paralell sides, we can cut it into 4 triangles
we can see that we can take the bottom 2 triangles and put them on top to get a rectangle that is width 21 and height 32/2 (16=height
area of rectangle=legnth times width=16 times 21=336 m^2

answer is 336 m^2