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Taya2010 [7]
3 years ago
14

Easy question, easy points can someone please explain to me how to do this?

Mathematics
2 answers:
choli [55]3 years ago
4 0

Answer:

(4n-7)^2

Step-by-step explanation:

16n^2-56n+49

This is a perfect square.

So the final expression is (4n-7)^2

Step-by-step explanation:

chubhunter [2.5K]3 years ago
3 0

Answer:

(4n-7)^2

Step-by-step explanation:

16n^2-56n+49

This is a perfect square.

So the final expression is (4n-7)^2

You might be interested in
What is the factored or of 25y^4 - 4z^2
Cerrena [4.2K]

Answer:

(5y^2+2z)(5y^2-2z)

Step-by-step explanation:

Use the difference of squares formula.

a^2-b^2=(a+b)(a-b)

a=5y^2 \\ b=2z

(5y^2+2z)(5y^2-2z)

5 0
3 years ago
A fast-food company is interested in knowing the probability of whether a customer viewed an advertisement for their new special
lord [1]

Answer:

45% probability that a randomly selected customer saw the advertisement on the internet or on television

Step-by-step explanation:

We solve this problem building the Venn's diagram of these probabilities.

I am going to say that:

A is the probability that a customer saw the advertisement on the internet.

B is the probability that a customer saw the advertisement on television.

We have that:

A = a + (A \cap B)

In which a is the probability that a customer saw the advertisement on the internet but not on television and A \cap B is the probability that the customers saw the advertisement in both the internet and on television.

By the same logic, we have that:

B = b + (A \cap B)

12% saw it on both the internet and on television.

This means that A \cap B = 0.12

20% saw it on television

This means that B = 0.2

37% of customers saw the advertisement on the internet

This means that A = 0.37

What is the probability that a randomly selected customer saw the advertisement on the internet or on television

A \cup B = A + B - (A \cap B) = 0.37 + 0.2 - 0.12 = 0.45

45% probability that a randomly selected customer saw the advertisement on the internet or on television

6 0
3 years ago
The measure of angle ABD is 105º. The measure of angle ABC is 75º.
MakcuM [25]

If we know that the WHOLE angle added is 105 and only part is 75 you need to subtract the whole angle and subtract from part of the whole angle.

105-75=30. You get 30 And that’s you answer!

Picture to help with your understanding.

5 0
3 years ago
Which expression can be used to find the surface area of the following square pyramid?
telo118 [61]

Answer:

Step-by-step explanation:

The slant height of one side of this pyramid is 5, and the base of this side is 4.  Thus, the area of one slant side is (1/2)(5)(4) = 10 units^2.

There are 4 such sides.  Thus, the total slant surface area is 4(10 units^2), or 40 units^2.  

If you also want to include the base area, the total would be

40 units^2 + 16 units^2 = 56 units^2.

8 0
3 years ago
What is the distance between the following points?
likoan [24]

Answer:

11.

Step-by-step explanation:

9 right, and 2 up

7 0
3 years ago
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