All categories

3 years ago

I don’t get it please help me

Mathematics

1 answer:

Lena [83]3 years ago

6 0

3 pancakes are each cut into 2 halves

3x2 is 6

there's 6 halves

You might be interested in

Evaluate 3x^2 - x for x = -2

Butoxors [25]

Answer:

$3x^2 - x$

$3 \times - 2 \times - 2 - 2$

$(3 \times - 2 \times - 2) - ( - 2)$

$12 + 2 = 14$

4 0

3 years ago

the first term of an arithmetic sequence is equal to 200 and the common differencence is equal to -10. find the value of the 20t

olga_2 [115]

Answer:

The value for 20th term is 10.

Step-by-step explanation:

First, you have to find the formula for the sequence.

$an = a + d(n - 1)$

$let \: a = 200,d = - 10$

$an = 200 - 10(n - 1)$

$an = 200 - 10n + 10$

$an = - 10n + 210$

Given that the formula of this sequence is an = -10n + 210. Next, you have to find 20th term :

$let \:n = 20$

$20th \: term = - 10(20) + 210$

$20th \: term = - 200 + 210$

$20th \: term = 10$

(Correct me if I am wrong)

7 0

4 years ago

The formula h - 15 = 3.2t gives the height h in inches of a plant t weeks after planting

Delicious77 [7]

If you add 15 to both sides, you get h = 3.2t + 15. This is basically a slope-intercept equation, and simply from that, you can tell that the slope (the rate) is 3.2.

Hopefully this helps! :)

4 0

4 years ago

Read 2 more answers

Mrs. Johnson has 159 chickens that she puts in shelters at night to keep safe. She places 12 chickens in a shelter and continues

Vladimir [108]

Answer:

3 chickens will Mrs. Johnson put in the last shelter

Step-by-step explanation:

According to the question,

Given,Mrs. Johnson has 159 chickens that she puts in shelters at night to keep safe. She places 12 chickens in a shelter .

thus,If she put 12 chickens in each 13 shelters ( 12×13=156 chickens) adjusted in shelters .

Then, the remaining 159-156 = 3 chicken will Mrs. Johnson put in the last shelter .

8 0

3 years ago

The graph of a quadratic function having the form f(x) = ax? + bx + c passes

insens350 [35]

Answer:

f(-3) = -20

Step-by-step explanation:

We observe that the given x-values are 3 units apart, and that the x-value we're concerned with is also 3 units from the first of those given. So, a simple way to work this is to consider the sequence for x = 6, 3, 0, -3. The corresponding sequence of f(x) values is ...

34, 10, -8, ?

The first differences of these numbers are ...

10 -34 = -24

-8 -10 = -18

And the second difference is ...

-18 -(-24) = 6

For a quadratic function, second differences are constant. This means the next first-difference will be ...

? -(-8) = -18 +6

? = -12 -8 = -20

The value of the function at x=-3 is -20.

_____

The attachment shows using a graphing calculator to do a quadratic regression on the given points. The graph can then be used to find the point of interest. There are algebraic ways to do this, too, but they are somewhat more complicated than the 5 addition/subtraction operations we needed to find the solution. (Had the required x-value been different, we might have chosen a different approach.)

5 0

3 years ago