Pls can someone help me factorise this: a²+9a+8

Answers

Answer 1

Answer:

(a + 8)(a + 1)

Step-by-step explanation:

We know that the first term is squared, so we can put it out like this:

a * a

The third term has to be separated so that the sum of the two factors is the coefficient of the second term, 9.

8 = 4 * 2 (does 4 +/- 2 = 9? nope, we can't use that)

8 = 8 * 1 (does 8+/- 1 = 9? yes, when 8 + 1)

So the factor is a + 8 and a + 1.

Put this together and (a+8)(a+1)


Related Questions

Please help and answer

Answers

Answer:

A quotient is a result when two numbers are divided

A difference is a result of two numbers being subtracted

A Product is the result of two numbers being multiplied

Step-by-step explanation:

56 divided by 7

8 minus 6

5 times 4

Samantha invested $660 into an account that paid 3.5% interest compounded annually. Samantha did not make any additional deposits or withdrawals. What is the total amount of interest paid by this investment at the end of 5 years?

Answers

115.5. Multiply all those number together to get your answer.
Hope I helped!

115.5  is the total amount of interest paid by this investment at the end of 5 years

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

Given,

Samantha invested $660 into an account that paid 3.5% interest compounded annually.

We need to find  total amount of interest paid by this investment at the end of 5 years

A=P(1+rt)

A is final amount

P is principal amount

r is rate of interest

t is time

A=?,P=660,r=3.5%=0.035, t=5

A=660(1+0.035(5))

=660(1+0.175)

=660(1.175)

A=775.5

To check the total amount of interest paid by this investment at the end of 5 years

We need to find difference between initial amount and final amount

775.5-660

115.5

Hence 115.5  is the total amount of interest paid by this investment at the end of 5 years

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martymade 10 kg of dough after working 5 hours. how much dough did her make if he worked 7 hours?

Answers

Answer:

14 kg

Step-by-step explanation:

Will give brainpower if correct PLEASE HELP ME

Answers

Answer:

it equals 45

Step-by-step explanation:

100 points if answered right
Which equation can be used to find 40 percent of 25? Start Fraction 25 divided by 1 Over 40 divided by 1 End Fraction = Start Fraction 25 Over 40 End Fraction Start Fraction 100 times 4 Over 40 times 4 End Fraction = Start Fraction 400 Over 16 End Fraction Start Fraction 40 times 4 Over 25 times 4 End Fraction = Start Fraction 160 Over 100 End Fraction Start Fraction 40 divided by 4 Over 100 divided by 4 End Fraction = Start Fraction 10 Over 25 End Fraction

Answers

Answer:

a

Step-by-step explanation:

Answer:

The answers that I got that were correct are: B, C, and E

Explanation:

The answer for this problem is 10 when you try to Find the percentage of one number in relation to another with the formula Percentage = (number you want to find the percentage for ÷ total) × 100. Move the decimal point two places to the right to convert from a decimal to a percentage, and two places to the left to convert from a percentage to a decimal.

Brainlist Please!

Original amount: 1299 new amount: 499 what is the percent change?

Answers

Answer:38.41%

explanation:........

Albert bought 9 pounds of fish at a grocery store at $5 per pound for salmon and $3 per pound for catfish. He spent a total of $37 on the salmon and catfish. This can be represented using the following system of equations:5s +3c = 37 s + c = 9 How many pounds of salmon did Albert purchase?

Answers

Answer:

5 pounds

Step-by-step explanation:

To find that we simply solve the system of equationsSo make c the subject of the formula of equation 2[tex]s+c=9\\c=9-s[/tex] Substitute in equation 1 [tex]5s+3c=37\\5s+3(9-s)=37\\5s+27-3s=37\\5s-3s+27-(27)=37-(27)\\2s=10\\s=5[/tex] so that's 5 pounds of salmon

Find the equation of the line

Answers

Answer:

y = 2x - 7

Step-by-step explanation:

The question is asking for slope-intercept form, y = mx + a.

Given:

(1, -5) and (9, 11)

Find the slope (m) between the two points:

m = (y2 - y1) / (x2 - x1)

x1 = 1

x2 = 9

y1 = -5

y2 = 11

m = ( 11 - (-5) )/(9 - 1)

= 16/8

m = 2

y = 2x + a

Use one of the two points to find a (I will use (1, -5)):

-5 = 2(1) + a

-5 = 2 + a

-7 = a

a = -7

y = 2x + (-7)

y = 2x - 7

It's going to be Lindsay's birthday soon, and her friends Mary, Jacqui, Tadeusz, Opal, and Tony have contributed equal amounts of money to buy her a present. They have $30.00 to spend between them. Write and solve an equation to determine how much they contributed.

This is due in 45 mins please Help!
Giving out 50 points

Answers

$30/5=6. Therefore, each person contributed 6 dollars

The equation to determine how each of them contributed is

x= 30/5 = $6.

What is Unitary Method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

We have,

They have $30.00 to spend between them.

let $x be the amount each contributed.

So, the equation to determine how each of them contributed

x = 30/ 5

x= $6.

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Can someone help with these two questions

Answers

Answer:

1. A

2. I cant see answer D

But if it's 36

IT'S CORRECT

Jamisha is solving the equation 4 ( x − 2 ) = 34 for x . Her work is shown in the table.

Answers

Answer:

Step-by-step explanation:

4x -8 = 34

4x = 42

x = 42/4 = 21/2 = 10.5

Mai made $112 for 8 hours of work.
At the same rate, how many hours would she have to work to make $252?

Answers

Answer:

18 hours

Step-by-step explanation:

Answer:

The correct answer would be 18 hours

Step-by-step explanation:

18 is correct because if you do $112 divided by 8 hours to get the unit rate of 14 dollars every hour, then do $252 divided by 14 which is the unit rate to equal 18 hours of work.

HAVE A GOOD DAY!

HELP ASAP. The two lines graphed on the grid each represent an equation.

Which ordered pair represents a solution to both equations?

A. (-4,0)
B. (-2,1)
C. (0, -4)
D. (1, -2)

Answers

Answer:

B

Step-by-step explanation:

the lines cross at (-2,1)

use the subsitution method to slove the system of equations.Choose the correct ordered pair. x+3y=9 y=x-5

Answers

Answer : x= 6 , y=1
Explanation:

Answer:

(6, 1)

Step-by-step explanation:

We are given the equation for (y), [y=x-5]

So we can implement that in all the places the (y) are in the other equation.

x+3(x-5)=9

x+3x-15=9

add 15 to each side

4x=24

Divide each side by 4

x=6

Now we can apply our (x) into one of the equations.

y=(6)-5

y=1

So our solution is (6, 1)

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

Please help

Solve for x.

Answers

Answer:

x = 17

Step-by-step explanation:

Since 2 sides of the triangle are congruent then it is isosceles, so

The 2 base angles are congruent, both 29°, thus

11x - 65 = 180 - (29 + 29) = 180 - 58 = 122 ( add 65 to both sides )

11x = 187 ( divide both sides by 11 )

x = 17

Sam and Sara bought the same number of pencils. Sam put ¼ of his pencils in his pencil box and Sara put ½ of her pencils in her pencil box. If sam had put 5 in his box then how many pencils did sara put in her pencil box?

Answers

Answer:

10 pencils

Step-by-step explanation:

Given that:

Number of pencils bought by Sam and Sara are the same.

Let the number of pencils bought = x

Sam put 1/4 in his pencil box

Sara put 1/2 in her pencil box

1/4 of Sam's pencil = 5

That is ;

1/4 of x = 5

x /4 = 5

x = 20

Hence, number of pencils Sara put in her box

:

1/2 of 20

1/2 * 20

20/2

= 10

10 pencils

divide nine by three, then subtract two double the results

Answers

Answer:

2

Step-by-step explanation:

hope this helps

Answer:

-3

Step-by-step explanation:

because nine divided by 3 is 3 then subtract 3 which is 0 then subtract 3 again which is -3

Is 2/7 a proportional expression

Answers

9514 1404 393

Answer:

  no

Step-by-step explanation:

A proportion is an equation saying two ratios are equal to each other.

One ratio is not a proportion.

___

It would be a proportion if it were said to equal something:

  2/7 = peanuts/popcorn . . . is a proportional expression

HELP PLEASE I NEED THE ANWSER NOOOOOOW

Answers

Answer:

4

Hope this helps

Which expression is equivalent to: 2(3x + 4)(x - 1)(x – 3)
a. 6x3+20x2 - 2x - 24
b. 6x3– 16x? - 14x + 24
c. 6x3- 4x2 – 34x - 24
d. 3x3- 8x - 7x + 12

Answers

Answer:

6x^3-16x^2-14x+24 Soo probably b?

I need help pleaseeee

You join a cycle class. The monthly membership fee is $20 plus the rate per hour spent cycling is $4. What function represents this
scenario?

Answers

Answer:

Linear bc the equation of this scenario is y=4x+20  

Step-by-step explanation:

Does the graph represent an exponential growth
or an exponential decay function?

Answers

there’s no graph......

Answer:

Ummmm... I'm sorry but there is no graph or equation, so I can't answer this question with them...

hr
Solve for x. Write both solutions, separated by a
comma.
2x2 - x - 10 = 0
Enter the correct answer.

Answers

X is equivalent to 7
x is indeed equivalent to 7

Subtract 9x^2-10x+19x −10x+1 from -2x^2+4x-10−2x +4x−10.

Answers

Answer:

11x^2+5x−19

Step-by-step explanation:

What’s the slope of the line?

Answers

Answer: 2

Step-by-step explanation:

[tex]\frac{rise}{run} = \frac{2}{1}[/tex]

5. Find 11% of 460. (1 point)
46
40.6
50.6
56

Answers

Answer:

50.6

-I hope this helps have a great day!

Take 460 and multiply it by 0.11 and you’ll get 50.6

What is the Slope from this equation? y = 0.75x - 5

Answers

Answer:

-5

Step-by-step explanation:

Can someone help my sis on these questions? I dont remember how to do these things (part 3)

Answers

Answer:

im pretty sure its B becuase  Richard owes more

Step-by-step explanation:

is that Florida vertual school? it looks like what i used to do

Joe is traveling from one city to another. He is looking at a map and realizes that 4 cm represents 25 miles.He then used a ruler to measure the distance on the map between two cities that he is traveling. The distance between them is 160 cm. How far, in miles are the two cities apart?

Answers

Answer:

The two cities are 1,000 miles apart

Step-by-step explanation:

The key to solving this is in the scale given:

4cm represents 25 miles

4cm = 25 miles

∴ 1 cm = 25 ÷ 4 = 6.25 miles

Measured distance on map = 160cm

1 cm = 6.25 miles

∴ 160 cm = 160 × 6.25 = 1000 miles

∴ The two cities are 1,000 miles apart

95 ÷ 4 how many remanders will I have left

Answers

Answer:

3 Remainder

Step-by-step explanation:

Answer:

23 remainder 3

Step-by-step explanation:

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