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3 years ago

What is the answer? Will give brainilist.

Mathematics

1 answer:

Elina [12.6K]3 years ago

5 0

Answer:

Step-by-step explanation:

first put them in order

5,6,6,8,9,9

now the ones that are in the middle are 6 and 8 so we find the average by adding them then dividing by 2

6+8=14/2=7

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Each day, a computer company produces 20 more laptops computers than desktop computers. On a certain day, 5% of the laptop compu

Nezavi [6.7K]

Let x be the no. of<span> laptop computers make that day
</span><span>20 more laptops computers than desktop computers
so no. of desktop computers = x-20

</span><span>5% of the laptop computers and 7% of the desktop computers
</span>= 0.05x + 0.07(x-20)
= 0.05x + 0.07x - 1.4
= 0.12x - 1.4
which equal to 16
so 0.12x-1.4 = 16
0.12x = 17.4
x=145
so the company builds 145 laptop computers that day

7 0

3 years ago

Read 2 more answers

Need all the answers can someone give me all the answers thanks

Orlov [11]

1) 3 hours 21 minutes
2) 1 hour 50 minutes
3) 2 hours 13 minutes
4) 2 hours 16 minutes
5) 3 hours 25 minutes
6)1 hour 29 minutes
7)1 hour 16 minutes
8) 3 hours 24 minutes
9) 4 hours 14 minutes
10) 3 hours 45 minutes
11) 4 hours 22 minutes
12) 2 hours 58 minutes
13) 1 hours 24 minutes
14) 1 hours 14 minutes
15) 4 hours 23 minutes

5 0

4 years ago

Find f(x) if it is known that f(x+3)=4x+12.

MArishka [77]

Solution:

we are given that

$f(x+3)=4x+12$

we have been asked to find f(x).

we can find the value of f(x) by re-writing the given function in the form of f(x+3) and thereafter we will replace (x+3) by x.

we can re-write the given function as below

$f(x+3)=4(x+3)\\\\\Rightarrow f(x)=4x\\$

Hence the expression representing f(x) is f(x)=4x+3.

8 0

3 years ago

Read 2 more answers

What polynomial can be factored to give (a + 4) ( a - 4) ?

iragen [17]

Answer:

(a+4)(a-4)=a²-4² ITS LIKE THIS BECAUSE ITS AN IDENTITY,

⇒a²-16

Even when we solve it by the regular method of solving polynomials we get a²-16 as answer as there and thats the proof for the identity.

(a+b)(a-b)=a(a-4)+4(a-4)

⇒a²-4a+4a-16

⇒a²-16[NOTE:-4a+4a=0]

Thus we can see that a²-16 is the answer we get when we try to solve it by regular polynomial solution tooo.

And a²-16 is the polynomial from which we get (a+4)(a-4)

8 0

3 years ago

What do i have to look up to learn how to do this kind of trig. I went through kahn academy for trig but this stuff never came u

mariarad [96]

Answer:

(e) √(x² -1)

Step-by-step explanation:

You can look up the Pythagorean theorem, and SOH CAH TOA.

<h3>Pythagorean theorem</h3>

This tells you the relations between the sides of a right triangle. For the purpose of finding tan(θ), you need to know the length of the side that is not marked on the diagram. It is found using the Pythagorean theorem.

The sum of squares of the legs is equal to the square of the hypotenuse. If we call the unknown leg "o", then ...

1² +o² = x² . . . . . the Pythagorean relation

o² = x² -1 . . . . . . subtract 1

o = √(x² -1) . . . . take the square root

This mnemonic reminds you of the relationship between trig functions and side lengths of a right triangle.

Sin = Opposite/Hypotenuse
Cos = Adjacent/Hypotenuse
Tan = Opposite/Adjacent

This tells you that tan(θ) is the ratio of the side opposite θ to the side adjacent:

tan(θ) = o/1 = o

From the previous section, o = √(x²-1), so ...

tan(θ) = √(x² -1) . . . . . . . matches choice (e)

_____

<em>Additional comment</em>

Another way to think about this is in terms of the trig identities you have learned:

sec(θ) = 1/cos(θ) = 1/(1/x) = x

sec²(θ) = tan²(θ) +1 ⇒ tan(θ) = √(sec²(θ) -1) = √(x² -1)

7 0

2 years ago