3 years ago

Please help me i have to finnish this!!!

Mathematics

1 answer:

sleet_krkn [62]3 years ago

8 0

Answer:

488

Step-by-step explanation:

$6x^{2} + 2$ = 0
replace x = -9 => 6 x (-9)^2 + 2 = 488

You might be interested in

Identity true statements about quadratic function y = ax^{2} +bx+c, where a =/= 0.

vesna_86 [32]

The true statements are (1) and (2)

3 0

3 years ago

What is the value of x and the length of segment DE?

aniked [119]

Answer:

x = 6.6; DE = 16.6

Step-by-step explanation:

Assume the diagram is like the figure below.

1. Calculate the value of x

In a right triangle, the altitude drawn from the right angle to the hypotenuse divides the triangle into two similar triangles.

Thus, ∆CDF ~ ∆FDE, and

$\begin{array}{rcl}\dfrac{CD}{DF} &=& \dfrac{FD}{DE}\\\\\dfrac{5}{9} &=& \dfrac{9}{2x + 3}\\\\5(2x + 3) & = &81\\10x + 15 & = & 81\\10x & = & 66\\x & = & \mathbf{6.6}\\\end{array}$

2. Calculate the length of DE

DE = 2x + 3 = 2(6.6) + 3 = 13.2 + 3 = 16.2

4 0

4 years ago

Solve for a missing factor,

Eva8 [605]

Answer:

1. 32

2. 170

3. 29

Step-by-step explanation:

1. is just 10 divided by 320, which gives you 32

2. is 10 times 17 which is 170

3. you need 29 tens to get 290.

6 0

3 years ago

Read 2 more answers

-5x+6y-10-2x+8y+6 what is this

RoseWind [281]

Add all common factors
-7+14y-4

6 0

3 years ago

Read 2 more answers

Which blood type was donates by the largest percent of people?

sergeinik [125]

The answer is o+ Hope this helped.

4 0

4 years ago