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
almond37 [142]
3 years ago
7

Expand and simplify (x + 5)(x + 4)​

Mathematics
2 answers:
Nina [5.8K]3 years ago
7 0

Answer:

(x+5)⋅(x+4)= x2+9x+20

Step-by-step explanation:

(x+5)(x+4)

=x

2

+4x+5x+20=

=x

2

+9x+20

blondinia [14]3 years ago
5 0

Step-by-step explanation:

(x+5)(x+4)

x(x+4)+5(x+4)

x(x+4)+5(x+4)

x2 +4x+5(x+4)

x2+4x+5(x+4)

x2+4x+5x+20

x2+4x+5x+20

x2+9x+20

solution

x2+9x+20

You might be interested in
3x-24 x+10 what is the value of x
Arisa [49]
3x-24=x+10
3x-x=24+10
2x=34
x=34:2=17
8 0
3 years ago
Read 2 more answers
Previous studies on sleep tendencies report that, on average, an adult American will sleep for 6 hours each night with a standar
Tom [10]

Answer: One sample z test for means

Step-by-step explanation:

From the information given, the sample size is large. It is greater than 30. Again, the population standard deviation is given. This means that the test statistic would be the z score which is determined by the formula

z = (x - µ)/σ

Where

x = sample mean

µ = population mean

σ = population standard deviation

The probability value would be determined from the normal distribution table.

Therefore, the hypothesis test that should be used is

One sample z test for means

7 0
3 years ago
Help. omg.<br><br><br> like i honestly don’t know.. 11 points + brainliest.
Nostrana [21]
Look it up on google
8 0
3 years ago
Read 2 more answers
The area of the triangle is 216 square inches.
natali 33 [55]

Step-by-step explanation:

1/2*216*height

2/216=18

so height =18.

8 0
2 years ago
Mr. Donahue is building a patio in his backyard he wants the patio to cover 1/4 of the yard Mister Donahue wants to know the are
krok68 [10]

Answer:

36 square feet

Step-by-step explanation:

area of the yard: 12×12=144

patio should be 1/4 of the yard, so 144:4=36 is the area of the patio

5 0
2 years ago
Other questions:
  • Solve and graph the absolute value inequality:-8&gt;-5x+2&gt;-38?
    6·1 answer
  • Can you find the sum of (-6y-2)+5(3+2.5y) ?
    7·2 answers
  • The area of a rectangular swimming pool is 360 square feet. If the length of the swimming pool is 9 feet more than its width, fi
    10·1 answer
  • If x5 = y3, then x = ?
    14·1 answer
  • Heres a graph of linear function write equation
    8·1 answer
  • escample: If 600 Students registered for mat 101,300 for Phy 101 while 173 students registered for both mat101 and phy 101 in 20
    11·1 answer
  • Which expression is equivalent to -6(-2/3+2x)?<br> A. -4-12x<br> B. -4+12x<br> C. 4-12x<br> D. 4+12x
    9·2 answers
  • What is 5xy-x^2t+2xy+3x^2t
    8·2 answers
  • Identify the postulate if possible
    9·1 answer
  • Jodie wanted to match Mandy's obstacle course record of 74.6 seconds. She had already spent fifty and one fourth seconds on wall
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!