All categories

3 years ago

Use distributing property : (-11) x (-15) + (-11) x (-25) plzz answer fast

1 answer:

5 0

The answer is 440.
What I do is just take the -11 and -15 out of the parentheses so it is -11*-15 and the answer is 165. Then, you take -11 and -25 out of the parentheses and find the answer.
Add them together.
Hope that helped :)

You might be interested in

Q # 6 please multiply help

Mkey [24]

This is a problem of Difference-of-squares. We know that for a difference of squares $a^2-b^2$ the factorization is given by:

$(a-b)(a+b)$

To learn this you need to remember that a difference means subtraction. So applying those concepts we can solve this problem step by step.

Applying distributive property:

$(2n)(2n-2)+2(2n-2)$

Applying distributive property again:

$4n^2-4n+4n+4$

Simplifying:

$4n^2-4$

The correct answer is C

3 0

3 years ago

Find the value of x in the figure. X= _

natulia [17]

Answer:

x=35

Step-by-step explanation:

For a polygon with n sides, the sum of its interior angles is equal to

(n-2) * 180

Here, there are 6 sides, so the sum of this polygon's interior angles is equal to (6-2)* 180 = 720

Therefore, the sum of the interior angles is 720. We can add them up to get

(4x-5) + 117 + (3x-3) + (3x+6) + 118 + 4x-3

= 14x +230 = 720

subtract 230 from both sides to isolate the x and its coefficint

14x = 490

divide both sides by 14 to get x

x=35

6 0

3 years ago

!!!' WILL GIVE BRAINLIEST !! THIS IS A TEST PLS ANSWER

yKpoI14uk [10]

Answer:

Red

Step-by-step explanation:

Side angle Side

side LM cong to side NQ

angle m cong to angle Q

side Mn cong to side PQ

6 0

3 years ago

Pattern: 10, 17, 26, 37....

Lelu [443]

Answer:

362 is the 17th term of this pattern

Step-by-step explanation:

First differences of the sequence are ...

17-10 = 7, 26-17 = 9, 37 -26 = 11

And second differences are ...

9-7 = 2, 11-9 = 2

The constant second differences tell you the pattern is described by a second degree polynomial. That polynomial can be written as ...

an^2 +bn +c . . . for term number n

Filling in the first 3 sequence values, we get ...

a + b + c = 10

4a +2b +c = 17

9a +3b +c = 26

___

Any of several means can be used to solve these.

We can subtract the first equation from the other two to get ...

3a +b = 7 . . . . . . . . [eq4]

8a +2b = 16 . . . . . . [eq5]

Subtracting [eq4] from half of [eq5], we get ...

(4a +b) -(3a +b) = 8 -7

a = 1

Putting this value into [eq4] gives ...

3 +b = 7

b = 4

and using these values for a and b in the first equation gives ...

1 + 4 + c = 10

c = 5

So the pattern is described by ...

an = n^2 +4n +5

We want to find the term that is more than 350, so ...

350 < n^2 +4n +5

349 < n^2 +4n +4 . . . . subtract 1 to make a square on the right

349 < (n +2)^2

√349 ≈ 18.68 < n +2 . . . . take the positive square root

16.68 < n . . . . . . . . . . . subtract 2

The first term greater than 350 is the 17th term. It is 362.

_____

In the process of "completing the square", we observe that the pattern rule can be written ...

an = (n+2)^2 +1

3 0

4 years ago

let's say that is has been established that a 95% confidence interval for the mean number of oranges eaten per week pe person is

Juliette [100K]

Answer:

False

Step-by-step explanation:

x% confidence interval:

A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.

In this question:

95% confidence interval for the mean number of oranges eaten per week per person is 0.8 to 2.6.

This means that we are 95% sure that the true population means for the number of oranges eaten per week per person is 0.8 to 2.6, not that 95% of all people eat between 0.8 and 2.6 oranges per week. So the answer is False.

7 0

3 years ago