1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Marina86 [1]
2 years ago
12

Et aussi surtout : (4-√2)(4+√2)

Mathematics
1 answer:
elena-14-01-66 [18.8K]2 years ago
3 0

Answer:

8

Step-by-step explanation:

J'espère que cela t'aides! si c'est le cas, puis-je avoir un brainliest ?

You might be interested in
Whats the answer to 8.4 + 0.18x = 0.32x
Sveta_85 [38]

Step-by-step explanation:

0.32x - 0.18x = 8.4 \\ 0.14x = 8.4 \\ x =  \frac{8.4}{0.14}  \\ x = 60

3 0
2 years ago
Given the following sets:
hjlf
<h3>Answer:  10</h3>

===========================================================

Explanation:

Even though your teacher doesn't want you to list the items of the set, it helps to do so.

We'll be working with these two sets

A = {b, d, f, h, j, I, n, p, r, t}

C =  {d, h, I, p, t}

When we union them together, we combine the two sets together. Think of it like throwing all the letters in one bin rather than two bins.

A u C = {b, d, f, h, j, I, n, p, r, t,   d, h, I, p, t  }

The stuff that isn't bolded is set A, while the stuff that is bolded is set C

After we toss out the duplicates, we end up with this

A u C = {b, d, f, h, j, I, n, p, r, t}

But wait, that's just set A. Notice how everything in set C can be found in set A. This indicates set C is a subset of set A.

That's why all of the stuff in bold was tossed out (because they were duplicates of stuff already mentioned).

Once we determine what set A u C looks like, we count out the number of items in that set to determine the final answer.

There are 10 items in {b, d, f, h, j, I, n, p, r, t} which means 10 is the final answer.

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

An alternative method is to use the formula below

n(A u C) = n(A) + n(C) - n(A and C)

n(A u C) = 10 + 5 - 5

n(A u C) = 10

The notation n(A and C) counts how many items are found in both sets A and C at the same time. But as mentioned earlier, this is identical to just counting how many items are in set C. So we'll have n(C) cancel out with itself.

In short, n(A u C) = n(A) = 10

8 0
2 years ago
Can someone please help me with the 2 questions below. (they go together)
il63 [147K]

Answer:

r=√(A/π)

r=2.8

Step-by-step explanation:

We want to get (r) alone on one side

A=πr^2

divide each side by π

A/π=r^2

square root each side

√(A/π)=r

r=√(A/π) is the answer to your first question.

now we are given A

r=√((25)/3.14)

put the left side into a calculator

r=2.8216632

round to nearest tenth of a centimeter

r=2.8

6 0
2 years ago
ILL MARK BRAINLIEST!!! PLEASE HELP!
eduard

Answer:

The quadratic equation is X^2 -26X +144=0

Step-by-step explanation:

You can do it shortly by using the formula

X^2-(sum)x+ product

which will give you

X^2- (8+18)x+8×18

=X^2 -26x +144

=X^2 -8x-18x + 144

=(X^2-8x)(-18x+144)

=X(X-8)-18(x-8)=0

(X-18)(X-8)=0

X-18=0 And X-8=0

X=18 X=8

. Therefore the quadratic equation is X^2 -26X +144

3 0
2 years ago
(x+6)(x-5) what is the degree,leading coefficient,constant term,horizontal interception,vertical intercepts
nikitadnepr [17]

Degree: 2

Leading coefficient: 1

Constant term: -30

Horizontal/X intercepts: (-6, 0) and (5, 0)

Vertical/Y intercept: (0, -30)

Here's a quick rundown: Distribute to find the standard form quadratic. Because it is quadratic, its degree must be 2. There isn't any number before the first variable, so it can be assumed to be 1. The last term, which doesn't have a variable and therefore the constant, is -30. By reversing the signs of the signs of the numbers in the factors, you can easily find the horizontal intercepts/X-intercepts/zeros/roots which are (-6, 0) and (5, 0). The constant term will in most cases also be the Y-intercept/horizontal intercept. Therefore the Y-intercept is (0, -30) This applies to this equation because there is nothing being multiplied across the entire equation.

5 0
2 years ago
Other questions:
  • Show work whit all of it
    10·1 answer
  • Jarrell's family drove from their House to a
    13·1 answer
  • The red team walks at a rate of 3.5 miles per hour. How far will they walk in 4 hours?
    13·2 answers
  • In this figure m&lt;3=130 <br> What is m&lt;6 ?
    8·2 answers
  • 20 pupcakes<br>15 pupcakes <br>30 pupcakes<br>25 pupcakes​
    12·2 answers
  • I need help with this if you get it right I will mark you
    13·1 answer
  • Pls answer this question
    10·1 answer
  • Change 6.00pm to 24 hours clock time<br><br>use a colon <br><br>​
    9·1 answer
  • 8 divided by 0.61 show me how you solved it
    13·1 answer
  • When 0.3(4x – 8) – 0.5(–2.4x + 4) is simplified, what is the resulting expressions
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!