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3 years ago

Determine the distance between -9 and -2 Easy Question

Mathematics

2 answers:

vazorg [7]3 years ago

7 0

Answer:

Step-by-step explanation:

........................

stepan [7]3 years ago

6 0

The answer is 7 because you move 7 tick marks on the chart . Please mark brainliest if correct !!

You might be interested in

What is the rate of change between (2,2) and (17,7)

ziro4ka [17]

Answer:

$\frac{1}{3} = m$

Step-by-step explanation:

$\frac{-y_1 + y_2}{-x_1 + x_2} = m$

$\frac{-2 + 7}{-2 + 17} = \frac{5}{15} = \frac{1}{3}$

I am joyous to assist you anytime.

6 0

3 years ago

Do you agree with the statement that " cubic functions must have at least 1 x-intercept but not more than 3, whereas quadratic f

vladimir2022 [97]

Answer:

Yes, I agree

Step-by-step explanation:

For the cubic function

A cubic function is represented as:

$f(x)=ax^3+bx^2+cx+d$

A cubic function may have 1, 2 or 3 x intercepts. This is shown below

For 3 x intercepts

$y = x^3 - x$

Equate y to 0

$x^3 - x = 0$

Expand

$x(x^2 - 1) = 0$

Express $x^2 - 1$ as difference of two squares

$x(x - 1)(x +1 ) = 0$

For 2 x intercepts

$y = x^3 - x$

$y =(x-5)^2)(x+7)$

Equate y to 0

$(x-5)^2(x+7) = 0$

Expand

$(x-5)(x-5)(x+7) = 0$

For 1 x intercept

$y = x^3$

Equate y to 0

$x^3 = 0$

Take cube roots of both sides

$x = 0$

It has been shown above that a cubic function may have 1, 2 or 3.

So, I agree to the statement

For the quadratic function

A quadratic function will not have any x intercept when the function can not be factorized;

E.g.

$y = x^2 + x + 17$

<em>The above function has no x intercept.</em>

A quadratic function will have at least 1 x intercept when the function can be factorized;

E.g.

$y = x^2- 6x + 9$

Equate y to 0

$x^2- 6x + 9 = 0$

Expand

$x^2 - 3x - 3x + 9 = 0$

$(x - 3)(x-3) = 0$

$x = 3$

We've shown that a quadratic may have no x intercept, and it may also have x intercept(s)

Hence, I agree to both statement

3 0

3 years ago

Isabella's teacher said she must read more than 70 pages of her book by the end of the week. Isabella is able to read 12 pages o

AlexFokin [52]

Answer:

She must read more than 5 more hours.

Step-by-step explanation:

4 0

3 years ago

How many solutions does the equation have?<br> x^4 + 7x^2 – 144 = 0

Amiraneli [1.4K]

Answer:

The equation has no real solutions. It has 2 imaginary, or complex solutions.

Step-by-step explanation:

7 0

3 years ago

IF YOU ANSWER ALL OF THESE I WILL MARK YOU BRAINLIEST

hjlf

1). $2,700 is (2,700/6,000) = 45% of 6,000.

It took 6 years to earn it, so it earned (45%/6) = 7.5% each year.
That's the simple-interest rate.
_________________________________

2). The investment earns 4.5% each year, so it earned 9% in 2 years.

The $1,150.65 is the 9% of the original investment. Call it V.

1150.65 = 0.09 x V .

Divide each side by 0.09 :

V = 1150.65 / 0.09 = $12,785 .
____________________________________

3). There are 18 marbles in the bag all together.

a). 8 of them are green. If you close your eyes and pull out 1 marble,
the probability that it's a green one is
8/18 = 4/9 = 44.4% .

b). If it was a red marble, and you put it in your pocket, then
there are only 17 in the bag now, and 8 of them are still green.

If you pull another one, the probability that it's green is

8/17 = 47.1% .
____________________________________

5). There are 10 marbles in the bag all together.
(The second sentence doesn't say anything, and doesn't mean anything.)

If you pull out a silver marble and put it in your pocket, then
there are 9 marbles in the bag, and 2 of them are orange.

The probability of pulling an orange marble now is

2/9 = 22.2% .

5 0

4 years ago