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
Tema [17]
3 years ago
13

I don't know how to do this?

Mathematics
2 answers:
Alborosie3 years ago
8 0
All you gotta do is set each of the parentheses equal to zero and solve for x
Ex x+7=0 => x= -7
x+4=0 => x= -4
miskamm [114]3 years ago
7 0
Do you know foil? FOIL= First,Outside,Inside, and Last

You might be interested in
NEED HELP ASAP!!! <br> TEN POINTS!
Bogdan [553]
The answer it’s letter D
7 0
3 years ago
The first term of a geometric sequence is 32, and the 5th term of the sequence is 818 .
sammy [17]

Answer:

32,24,18,\frac{27}{2} ,\frac{81}{8}

Step-by-step explanation:

Let x, y , and z be the numbers.

Then the geometric sequence is 32,x,y,z,\frac{81}{8}

Recall that  term of a geometric sequence  are generally in the form:

a,ar,ar^2,ar^3,ar^4

This implies that:

a=32 and ar^4=\frac{81}{8}

Substitute a=32 and solve for r.

32r^3=\frac{81}{8}

r^4=\frac{81}{256}

Take the fourth root to get:

r=\sqrt[4]{\frac{81}{256} }

r=\frac{3}{4}

Therefore x=32*\frac{3}{4} =24

y=24*\frac{3}{4} =18

z=18*\frac{3}{4} =\frac{27}{2}

8 0
3 years ago
The formula to find the area of the walls of a rectangular room is A=2h (l+b), h is wall height, l is room length, and b is room
Allisa [31]
Problems are very often written in a confusing way. This one couldn't possibly have been
written any more clearly.  Sooner or later, you have to stop telling yourself that you have
no clue, settle down, and carefully read the words that are right there on the page.

I'll tell you one more detail that's not in the problem:  "breadth" means "width".
 
Now.  The problem clearly tells you all of these things, in this exact order:

=>  Area of the walls = (2 x height) x (length + width)

=>  length = 8m
=>  width = 6m
=>  height = 2.5m 

Is there a reason you can't take the numbers for length, width, and height,
and write them in the formula for the area ?  Do I have to do all the work ?

Area = (2 x height) x (length + width)

Area = (2 x 2.5m ) x ( 8m    +   6m  )

Do the arithmetic inside the parentheses:

Area = (    5m     ) x (     14m          )

Do the multiplication:

Area = <u>70 m² .</u>

You will never see a problem that comes any closer to answering itself <em>for </em>you.
8 0
3 years ago
Find the vertex of the parabola: y = -2x2 - 4x - 7
snow_lady [41]
X=-b/2a=4/14=2/7
Plug this value back into the function to find the corresponding Y value
7 0
3 years ago
Ok so I messed up the first time I put only 3 pictures when there was more the questions are in the pictures
alukav5142 [94]
45 7 14 absolute value true the distance from 0 and -5 -3 -2 0 and 9
8 0
3 years ago
Read 2 more answers
Other questions:
  • Find the solution of equations -x+5y=30 10x-5y=-75
    11·1 answer
  • In a company, 37% of 1500 employees are females.work out the number of males in the company.
    6·1 answer
  • 0.04 divided by 19 plzzzzzzzzzzz
    9·2 answers
  • suppose you to multiply a whole number greater than 1 by the fraction3/5. will the product be greater than, less than, or equal
    10·1 answer
  • What's the LCM to 45 and 30
    11·2 answers
  • Leia is setting up 417 417417 toy cars. Each car needs 3 33 batteries to drive. How many batteries does Leia need for her cars?
    6·1 answer
  • Cos ( α ) = √ 6/ 6 and sin ( β ) = √ 2/4 . Find tan ( α − β )
    9·1 answer
  • Please help I will award beau l’ovest answer
    11·1 answer
  • GIVING ALOT OF POINTS AND I GIVE BRAINLIEST
    13·1 answer
  • HELP HELP HELP<br> HELP HELP <br> HELP <br> (STEP BY STEP)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!