All categories

3 years ago

Please answer this Will mark brainiest

Mathematics

2 answers:

Sloan [31]3 years ago

8 0

Answer:

<h2>First question</h2>

(x + 3)( x - 4 )

Expand the terms

we have

x² - 4x + 3x - 12

x² - x - 12

<h3>Second question.</h3>

The sequence is an arithmetic sequence

U(n) = a + (n - 1)d

a = first term

d = common difference

n= number of terms

From the above sequence

a = 9

d = 6 - 9 = - 3

U(n) = 9 + (n - 1 ) -3

= 9 - 3n + 3

= 12 - 3n

Hope this helps you

qwelly [4]3 years ago

4 0

Answer:

(x + 3)( x - 4 )

Expand the terms

we have

x² - 4x + 3x - 12

x² - x - 12

Second question.

The sequence is an arithmetic sequence

U(n) = a + (n - 1)d

a = first term

d = common difference

n= number of terms

From the above sequence

a = 9

d = 6 - 9 = - 3

U(n) = 9 + (n - 1 ) -3

= 9 - 3n + 3

= 12 - 3n

Step-by-step explanation:

You might be interested in

Ms. Perry bought a plant and is tracking the height of the plant each week. If y represents the height of the plant, in inches,

VMariaS [17]

Answer:

When Ms. Perry bought the plant, its height was 5 inches. The plant grew at the rate of 2.5 inches per week.

Step-by-step explanation:

The rate of change, or slope, represents the rate at which the height of the plant increased per week.

Use the points (2 , 10) and (4 , 15) from the table to calculate the rate of change, also known as the slope.

y2 - y1 = 15 inches-10 inches

x2 - x1 4 weeks-2 weeks

2.5 inches/1 week or 2.5 inches per week

So, the rate of change is 2.5 inches per week.

Now, find the y-intercept, b, by using the equation y = mx + b, where m is the slope of the line represented by the given table of values and (x , y) is any point on the line.

Substitute m = 2.5 and (x , y) = (2 , 10) in the above equation to find out the initial height of the plant.

y=mx+b

10=2.5 (2) + b

5=b or b=5

So, the initial height of the plant was 5 inches.

Therefore, the situation represented by the table is when Ms. Perry bought the plant, its height was 5 inches. The plant grew at the rate of 2.5 inches per week.

5 0

3 years ago

Evaluate the piecewise-defined function for the indicated values. I’m just unsure of how to solve when the value isn’t given dir

Fantom [35]

The value of the function at t=0 is 9 , 6<x<7 is -t+5, 1<n<2 is 9, for $m^{2} +1$ is 9.

Given function which is 9 for 0 to 5 , -t+5 for 5 to 8 and $\sqrt{t-1}$ for 8<t<11.

A) We have to find the function at t=0 which is 9 because it lies between 0<=t<5.

B) In this we have to find the value of the function when x=t lies between 6 and 7. is -t+5.

C) In this we have to find the value of Q(n) when n lies between 1 and 2 and the value becomes 9 because it lies between 0 and 5.

D) In this we have to find the function at $m^{2} +1$ when m belongs to $\sqrt{7} and \sqrt{10}$ the value of m lies between 2 and 4 and the value of m square +1 lies between 3 and 5. Hence the value of function at m square plus one is 9.

Learn more about functions at brainly.com/question/10439235

#SPJ10

6 0

3 years ago

Please help asap 10points!!<br> thanks in advanced!!

denis-greek [22]

-2/3x is the slope. the full problem is y=-2/3x + 3

7 0

4 years ago

9 tenths - 3 tenths =

amm1812

9 tenths - 3 tenths = 6 tenths. this is true the same way that 9 minus 3 = 6. In reality the tenths make both numbers decimals, but in this case the "tenths" is just a classification of the number and it doesn't effect the answer.

3 0

3 years ago

Read 2 more answers

Find the increase in price of a single piece of design, when crafts design price is increased by 45% which makes a buyer to buy

Volgvan

Answer: Original price = $43.10, Increase = $19.40, Final price = $62.50

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

Let x represent the original price, then

8x(1.45) < $500

$x$

x < $43.10

Increase is 0.45x

0.45($43.10)

= $19.40

Final price is Original + Increase

$43.10 + $19.40

= $62.50

8 0

4 years ago