1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tatyana61 [14]
3 years ago
7

Factor each completely.1) x7x 18

Mathematics
2 answers:
BigorU [14]3 years ago
7 0
Hello,

x²-7x-18=x²+2x-9x-18
=x(x+2)-9(x+2)
=(x+2)(x-9)

sergey [27]3 years ago
6 0
Use the cross-method.

1. Draw a cross.

2. Put x^2 to the first column.

( You can put any x^2 values for other similar factorisation question. eg. 5x^2 )

3. Put numbers on the 2nd column.

4. For the last column, it must be a number with an x.

5. Make sure that all the numbers and algebra that you multiplied gives the product with the ones at the bottom row.

6. Cross multiply.

7. Take 1st row and bracket them and do the same for 2nd row.

Answer:

x^2 - 7x - 18

= ( x+2 )( x - 9 )

You might be interested in
0.002 is 1/10 (fraction) of......
Tpy6a [65]
<span>0.002 is the 1/10 of what number.
Find the number that applies to this.
=> 0.002 has a thousandths value since it is placed next to the decimal points
=> To be able to get the answer. Let’s convert 1/10 into a decimal.
=> 1 / 10 = 0.1
Now that we have the same decimal numbers, we can now start dividing 0.1 to 0.002
=> 0.002 / 0.1
=> 0.02
Thus, 0.002 is the 1/10 of 0.02 number.</span><span>

</span>



3 0
2 years ago
Read 2 more answers
Which is equivalent to 12(323)?
sladkih [1.3K]

Answer:

3,876

Step-by-step explanation:

if you multiply 323 by 12 you get 2,876. Hope this helps!


5 0
3 years ago
Read 2 more answers
Lucy is going to walk in a fundraising event to raise money for her school band. Her mother has agreed to donate $7.50 to the sc
Readme [11.4K]

Answer: y = $7.50x + $25

Step-by-step explanation:

From the question, we are informed that Lucy is going to walk in a fundraising event to raise money for her school band and her mother has agreed to donate $7.50 to the school for each mile that Lucy walks, plus an additional $25.

The equation that represents y, the total amount of money Lucy's mother will donate if Lucy walks x miles during the event will be:

= ($.750 × x) + $25

y = $7.50x + $25

Since Lucy walks x Mike's, we multiply x by $7.50 and then add the answer to the additional $25 which is the answer gotten above.

7 0
3 years ago
Can someone plzzz hekppp meeee
erastova [34]

Answer:

Use this formula for these kinda things.

Step-by-step explanation:

Remember The z is the hypathonous, it means the biggest side.

{a}^{2}  +  {b}^{2}  =  {c}^{2}

where Z is going to be C

put this all together

{7}^{2}  +  {18}^{2}  =  {z}^{2}

put it into calculator, means 373=

{z}^{2}

therfore take the square root, it will be

z =  \sqrt{373}

which it will be 19.31

5 0
2 years ago
A space vehicle deploys its re-entry parachute when it's traveling at a vertical velocity of -150 meters/second (negative becaus
Arlecino [84]
The initial velocity is -150m/s.
Remember that:
V(t) = Vi + at, where v(t) is velocity at time t, Vi is initial velocity, and a is acceleration.
We know that the vehicle stopped after 30 seconds, so V(30) = 0.
Let's plug the useful info into our function and solve for a:
0 = -150 + a*30     Add 150 to both sides
150 = 30a             Divide both sides by 30
a = 5 m/s²
The average acceleration is 5 meters per second squared. 
8 0
3 years ago
Read 2 more answers
Other questions:
  • ❗❗❗❗❗❗❗HELP❗❗❗❗❗❗❗
    15·1 answer
  • (9.5 minus 3 times 1 and one-half) divided by 0.5 0.5 5 10 19.5
    10·1 answer
  • Which of these is a correct expansion of (4x – 2)(2x 2 + 3)?
    13·1 answer
  • How do you solve equations and check for solutions
    5·2 answers
  • Divide ratio <br><br> £360 in the ratio 1 : 8
    8·1 answer
  • Which is the equation of a line that has a slope of 1/2 and passes through point (2, -3)?
    11·2 answers
  • Noah was paid a 25% commission of selling a used car if she was paid 1631.24 dollars what was the selling price of the car
    6·2 answers
  • Pls help What is the volume of the following pyramid?
    7·1 answer
  • Solve for [?]. Assume that lines which appear tangent are tangent.
    6·1 answer
  • 7 1/8 × 5 2/3<br><br>O 35 1/12 <br>O 40 3/8<br>O 35 3/8​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!