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1 year ago

A² + 11a + 30 Plsss help

Mathematics

1 answer:

Debora [2.8K]1 year ago

5 0

Answer:

( a + 5 ) ( a + 6 )

? maybe

Step-by-step explanation:

I really don't know how to explain

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Which expression simplifies to 5√3?<br> OA. √30<br> OB. 45<br> OC. √75<br> OD. 15<br> Re

Vaselesa [24]

Option C

Let's see how

√75
√25×3
√5²×3
5√3

Verified

8 0

1 year ago

Read 2 more answers

The amount Lin's sister earns at her part-time job is proportional to the number

jarptica [38.1K]

the equation framed in the form of y=kx is $y = 9.6(x)$ and , x as a function of y $x=\frac{1}{ 9.6}(y)$ .

<u>Step-by-step explanation:</u>

Here we have , The amount Lin's sister earns at her part-time job is proportional to the number of hours she works. She earns $9.60 per hour. We need to find an equation in the form y=kx to describe this situation, where x represents the hours she works and y represents the dollars she earns.Is y a function of x . Also , Write an equation describing x as a function of y . Let's find out:

Here , Lin's sister earns $9.60 per hour . Let x represents the hours she works and y represents the dollars she earns . So , According to question following is the equation framed in the form of y=kx :

⇒ $y = 9.6(x)$

Yes, y is a function of x , as a straight line with a slope of 9.6

Now , x as a function of y :

⇒ $\frac{y}{ 9.6}=(x)$

⇒ $x=\frac{1}{ 9.6}(y)$

Therefore , the equation framed in the form of y=kx is $y = 9.6(x)$ and , x as a function of y $x=\frac{1}{ 9.6}(y)$ .

3 0

3 years ago

Which of the following functions best describes this graph?

jok3333 [9.3K]

<h3>Answer: Choice C</h3>

Explanation:

The x intercepts or roots are x = 3 and x = 5, which lead to the factors x-3 and x-5 respectively.

Multiplying out those factors gets us this:

(x-3)(x-5)

x(x-5)-3(x-5)

x^2-5x-3x+15

x^2-8x+15

8 0

2 years ago

Please help me solve this problem

bulgar [2K]

Answer:

D, 225

Step-by-step explanation:

Because this equation already has a1, it's useless to test with that, so instead solve for a2.

You would have a2 - 5a1, which would get you a2 = 5(9) because we already know what a1 is, which is 9. a2 = 45

Now we have a2, which is 45, so now we solve for a3

We would have a3 = 5a2 = a3 = 5(45) which is 225 which is a3

Also thanks for the fat 18 points dude, you really put 36 points into this one big value hope this one helped you a lot

3 0

3 years ago

(1 point) Find the length L and width W (with W≤L) of the rectangle with perimeter 100 that has maximum area, and then find the

Vilka [71]

Answer:

Width = 25

Length = 25

Area = 625

Step-by-step explanation:

The perimeter of a rectangle is given by the sum of its four sides (2L+2W) while the area is given by the product of the its length by its width (LW). It is possible to write the area as a function of width as follows:

$100 = 2L+2W\\L = 50-W\\A=LW=W*(50-W)\\A=50W - W^2$

The value of W for which the derivate of the area function is zero is the width that yields the maximum area:

$A=50W - W^2\\\frac{dA}{dW}=0=50 - 2W\\ W=25$

With the value of the width, the length (L) and the area (A) can be also be found:

$L=50-25 = 25\\A=W*L=25*25\\A=625$

Since the values satisfy the condition W≤L, the answer is:

Width = 25

Length = 25

Area = 625

8 0

3 years ago