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3 years ago

Find the geometric mean of 8 and 13.

Mathematics

1 answer:

Doss [256]3 years ago

7 0

Find the factors from the roots, then multiply the factors together.
y
=
x
2
−
21
x
+
104

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An apartment building caretaker puts 0,75 L of chlorine into the swimming pool every day. If the chlorine is sold in containers

kaheart [24]

the question says,

the apartment caretaker puts 0.75L of chlorine into the swimming pool daily

the chlorine is sold in containers that holds 4L

so we should get the numbers of containers he should order in 120days.

first of all, lets get the total chlorine needed

total chlorine needed = the chlorine he pours daily X the number of days

total chlorine needed = 0.75 X 120 = 90L

to get the number of containers he should order

= 90/4

= 22.5

therefore the number of containers the he sholuld order in 120 days is 22 and half container.

3 0

2 years ago

Solve the following system of equations using the substitution method. y = –5x – 17 –3x – 3y = 3

jek_recluse [69]

The answer to the question

6 0

3 years ago

Given the points (-2, 0), (-1,0), (0, – 8), (2, 0), write the polynomial in factored form.

Ket [755]

As per given by the question,

There are given that four point.

The point is,

$(-2,\text{ 0), (-1, 0), (0, -8), (2, 0)}$

Now,

From given point,

$(-2,\text{ 0), (-1, 0), (0, -8), (2, 0)}$

Then, the factor is,

$(x+2)(x+1)(x-2)$

Now, solve the above equation,

$(x+2)(x+1)(x-2)$

The factorial formd will be,

$y=a\times(x+2)\times(x+1)\times(x-2)$

Now, find the value of "a" with the help of given point (0, -8).

So,

Puth the value of x =0, and y=-8 in above equation,

Then,

$\begin{gathered} y=a\times(x+2)\times(x+1)\times(x-2) \\ -8=a\times(0+2)\times(0+1)\times(0-2) \\ -8=a(2)(1)(-2) \\ a=\frac{-8}{-4} \end{gathered}$

Then, a=2.

Now,

The value of a is 2.

And,

The polynomial in the factored form is,

$y=2(x+2)(x+1)(x-2)$

Hence, the value of a is 2 and the polynomial in the factored form is,

$y=2(x+2)(x+1)(x-2)_{}$

8 0

1 year ago

Complete the sentence help me plssssssssssssssss

uranmaximum [27]

The answer is half… (1/2)

5 0

2 years ago

Solve the following inequality. -5-2x>-9. Show all work you did to get the answer

Elena L [17]

Answer:

$x$

Step-by-step explanation:

Solving inequalities is just like solving equations. Isolate x and whatever you do to one side, you must do to the other.

1) First, isolate the term with the x. To get rid of the -5, add 5 to both sides.

$-5-2x>-9\\-2x>-4$

2) Next, isolate the variable x by dividing both sides by -2. However, remember that when working with inequalities, you must flip the inequality sign when dividing or multiplying by a negative number. Thus, the greater than sign becomes a less than sign.

$-2x>-4\\x$

Thus, the answer is $x$ .

6 0

3 years ago