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Soloha48 [4]
3 years ago
12

Which is a solution to the equation?

Mathematics
2 answers:
Alona [7]3 years ago
8 0
The answer is -7 letter B
stiks02 [169]3 years ago
3 0
If you would like to know the solution to the equation (x - 2) * (x + 5) = 18, you can calculate this using the following steps:

(x - 2) * (x + 5<span>) = 18
</span>x^2 + 5x - 2x - 10 = 18
x^2 + 3x - 28 = 0
(x + 7) * (x - 4) = 0
1. x = - 7
2. x = 4

The correct result would be x = - 7.
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Is y= x2-1 a linear equation
kotegsom [21]

Answer: With the way you wrote it, I don't know. I'm assuming that it's y=x^2+1. If that's the case, then no it's not linear.

Step-by-step explanation:

It's not a straight line. Graph it.

It's frustrating seeing questions like yours where the person asking literally does not even think through about their question. Next time, at least try the problem on your own instead of just deciding that you can't do it. This is an extremely easy problem, and I'm guessing you're just copying answers on here. The naivety here is palpable.

3 0
4 years ago
The path of a football kicked by a field goal kicker can be modeled by the equation y = –0.04x2 + 1.56x, where x is the horizont
Vika [28.1K]
Convert to vertex form:- 
= -0.04(x^2 + 39x)
= -0.04( (x + 19.5)^2 - 380.25)

vertex is at -0.04 * -380.25 = 15.21 yards

Maximum height is about 15.2 yards
3 0
4 years ago
Read 2 more answers
What equation would go through (-9,-9) and (-6,0)
Scilla [17]

Answer:

The equation of line is y = 3 x +18

Step-by-step explanation:

Given as :

The points are

(x_1, y_1) = (- 9, -9)

(x_2, y_2) = (- 6 , 0)

Let The slope = m

Now,<u> The slope is calculated in points form</u>

So, Slope = \dfrac{y_2-y_1}{x_2-x_1}

I.e m = \dfrac{y_2-y_1}{x_2-x_1}

or, m = \dfrac{0 - (-9)}{- 6 - (-9)}

or, m = \dfrac{9 }{3}

I.e m = 3

So, The slope of points = m = 3

<u>Now, the equation of line in slope - point form can be written as</u>

y - y_1 = m ( x - x_1 )

where m is the slope of line

i.e y - (-9) = ( 3 ) × ( x - (-9) )

or, y + 9 =  3 × (x + 9)

∴ y + 9 = 3 x + 27

Or, y = 3 x + 27 - 9

O,r y = 3 x + 18

So, The equation of line is y = 3 x + 18

Hence, The equation of line is y = 3 x +18 . Answer

7 0
3 years ago
Nick has 3 shirts: a white one, a black one, and a blue one. He also has two pairs of pants, one blue and one tan. What is the p
kumpel [21]

Answer:

Probability of wearing the white shirt and tan pants is 1/3 × 1/

=1/6

5 0
3 years ago
Find the length and width of a rectangle with an area of 2x^2+x-3
nasty-shy [4]
2x^2 + x -3 can be factorised 

<span>[2x + 3][x - 1] </span>

<span>As length times width = area </span>

<span>one possible set of measurements are </span>

<span>length = [2x + 3] </span>
<span>width = [x-1] </span>
6 0
3 years ago
Read 2 more answers
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