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2 years ago

6

Please help me please i really need help please

2 answers:

kari74 [83]2 years ago

8 0

Point Form: (1,-5)
Equation Form: x-1,y=-5

alekssr [168]2 years ago

7 0

There u go that’s the answer

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Plz help ASAP need help on this

chubhunter [2.5K]

Answer:

I might be wrong, but most likely diameter

7 0

2 years ago

Read 2 more answers

1. Write a quadratic function, in standard form, that fits the set of points. Solve it as a system of three equations

sasho [114]

Answer:

The equation is $y=2x^2+4x-7$

Step-by-step explanation:

Let the quadratic function be

$y=ax^2+bx+c$

The point (-4,9) must satisfy this function,

$\Rightarrow a(-4)^2+b(-4)+c=9$

$\Rightarrow 16a-4b+c=9...(1)$

The point (0,-7) must also satisfy this function,

$\Rightarrow a(0)^2+b(0)+c=-7$

$\Rightarrow c=-7...(2)$

The point (1,-1) must also satisfy this function,

$\Rightarrow a(1)^2+b(1)+c=-1$

$\Rightarrow a+b+c=-1...(3)$

We put equation 2 into equation 1 to get;

$\Rightarrow 16a-4b-7=9$

$\Rightarrow 16a-4b=16$

$\Rightarrow 4a-b=4...(5)$

We again put equation 2 into equation 3 to get;

$\Rightarrow a+b-7=-1$

$\Rightarrow a+b=6...(6)$

We add equation 5 and 6 to get;

$5a=10$

$\Rightarrow a=2$

We put $a=2$ into equation 6 to get;

$2+b=6$

$\Rightarrow b=6-2$

$\Rightarrow b=4$

The equation is therefore $y=2x^2+4x-7$

5 0

2 years ago

Based on your results in Question 1, how is the volume of the cone related to the volume of the cylinder, given that their bases

kaheart [24]

Vcylinder : Vcone = 3:1

6 0

3 years ago

Sid used geometry software to draw a circle of a radius 4 units on a fgrid. He estimated the area of the circle by ciunting the

Alina [70]

Answer:

Therefore, the error is 52-50.27=1.73.

Step-by-step explanation:

We know that Sid used geometry software to draw a circle of a radius 4 units on a fgrid. He estimated the area of the circle by ciunting the squares that were mostly inside the circle and got an answer of 52 sq units.

We use the formula:

$P=r^2\cdot\pi\\P=4^2\cdot \pi\\P=50.27$

Therefore, the error is 52-50.27=1.73.

4 0

2 years ago

the diagonals PR and QS of a rhombus intersect each other at point O. prove that 2(PQ) + 2(RS) + 2(RS)+ 2(PS) = 4 (2(OP)+2(OQ))

Svetllana [295]

Answer:

6 is the answer

Step-by-step explanation:

3 0

3 years ago