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3 years ago

Can anyone help me ill give brainliest

Mathematics

1 answer:

postnew [5]3 years ago

3 0

Answer:

Answer the first choice.

Step-by-step explanation:

Given

Points (-2,6) and (0,2)

y2 = 6

y1 = 2

x2 = - 2

x1 =0

m = (y2 - y1)/(x2 -x1)

Solution

m = (6 - 2)/(-2 - 0)

m = - 2

Remark

If you know what the formula to use is, it always helps to write down your givens. The solution is much easier.

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Heyy I need help! thankss

omeli [17]

Answer:

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Step-by-step explanation:

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7 0

3 years ago

Read 2 more answers

Identify which properties are being used in each step

olga55 [171]

The first one is distributive property
I think the 2nd and last are associative
and the last is commutative

3 0

4 years ago

The half-life of a radioactive material is about 2 years. How much of a 5.0 kg sample of this material will remain after 4 years

HACTEHA [7]

The remaining amount after 4 years is 1.25 kg

<h3>How to determine the remaining amount?</h3>

The half life of a function is represented as:

$A = A_o * (1/2)^{t/h}$

Where

Ao represents the initial amount

So, we have:

$A = 5 * (1/2)^{t/2}$

In 4 years, t = 4.

So, we have:

$A = 5 * (1/2)^{4/2}$

This gives

$A = 5 * (1/2)^2$

Evaluate the expression

A = 1.25

Hence, the remaining amount after 4 years is 1.25 kg

Read more about half life at:brainly.com/question/26148784

#SPJ1

8 0

2 years ago

A salesperson sold a car for $18,200 and their commission is $700. What percentage of the sale price is their commission?

marshall27 [118]

The percentage of their commission is 3.85%
700/18200= 0.03846
0.03846 x 100 = about 3.85

7 0

3 years ago

2. Abby found the axis of symmetry, x-coordinate, the vertex, and y-intercept

krek1111 [17]

Using quadratic function concepts, it is found that Abby made a mistake on the coordinates of the vertex, which are (-4,1).

----------------------

A quadratic function is defined by:

$y(x) = ax^2 + bx + c$

The y-intercept is given by point: $(0, y(0))$
The vertex is given by: $(-\frac{b}{2a}, y(-\frac{b}{2a}))$ .
The axis of symmetry is: $x = -\frac{b}{2a}$

----------------------

The function given is:

$f(x) = -x^2 - 8x - 15$

Which is a quadratic equation with: $a = -1, b = -8, c = -15$ .
$f(0) = -0^2 - 8(0) - 15 = -15$ , thus, the y-intercept is (0, -15).

$x_v = -\frac{b}{2a} = -\frac{(-8)}{2(-1)} = \frac{8}{-2} = -4$

Thus, the <u>x-coordinate of the vertex</u> is x = -4, which is the same as the <u>axis of symmetry</u>.

$f(-4) = -(-4)^2 - 8(-4) - 15 = 1$

The vertex is given by: (-4,1).

A similar problem is given at brainly.com/question/14680175

8 0

3 years ago