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
LekaFEV [45]
3 years ago
12

Factor each completely? A2-7a-18

Mathematics
1 answer:
alisha [4.7K]3 years ago
6 0
a^{2} -7a-18     (-9 + 2= -7,   -9*2= -18)

(a - 9)(a + 2)
You might be interested in
PLS HELP ASAP:Find all the missing elements:
adelina 88 [10]

Answer:

b ≈ 9.5, c ≈ 14.7

Step-by-step explanation:

Using the Sine rule in Δ ABC, that is

\frac{a}{sinA} = \frac{b}{sinB} , substitute values

\frac{7}{sin23} = \frac{b}{sin32} ( cross- multiply )

b × sin23° = 7 × sin32° ( divide both sides by sin23° )

b = \frac{7sin32}{sin23} ≈ 9.5 ( to the nearest tenth )

Also

\frac{a}{sinA} = \frac{c}{sinC}

\frac{7}{sin23} = \frac{c}{sin125} ( cross- multiply )

c × sin23° = 7 × sin125° ( divide both sides by sin23° )

c = \frac{7sin125}{sin23} ≈ 14.7 ( to the nearest tenth )

3 0
3 years ago
Use the distributive property to remove the parentheses. (y-3)10​
vlada-n [284]

Answer:

10y-30

Step-by-step explanation:

10*1y=10y

-3*10=-30

10y-30

3 0
3 years ago
Suppose you are finding 296 divided by 4 using partial quotients. Is 50 or 70 a more reasonable partial quotient? Explain.
Lyrx [107]
Round 296 up to 300 and then divide 300 by 4 mentally.  Answer:  75.  Which is a more reasonable partial quotient, 50 or 70?
8 0
3 years ago
F(x)= 20 + 12(x - 2)​
Vinvika [58]

Answer:

f(x) = 12x - 4

Step-by-step explanation:

f(x)= 20 + 12(x - 2)​

Distribute

f(x) =20 +12x - 24

Combine like terms

f(x) = 12x+20-24

f(x) = 12x - 4

4 0
3 years ago
Read 2 more answers
7/8 and 3/4 in addition to complete the fraction box?
krok68 [10]
7/8 and 3/4 
Both need to have same denominator so it would be 32, in this case because 8*4 is 32. 
7/32+3/32=10/32 simplified to 5/16 

3 0
3 years ago
Other questions:
  • I don't know why its correct. Help explain to me pls.
    10·1 answer
  • The measure of Angle E, the angle of elevation from point A to point B, is ( 3 x plus 1 ). The measure of Angle D, the angle of
    5·1 answer
  • What is the measurement of angle R?
    12·1 answer
  • Which ordered pair is a solution of the equation? 6x+3y=15
    13·2 answers
  • If 390 words were typed in 6 min how many words were typed in 10 min
    8·2 answers
  • Find the LCD to each the fractions and then add them together 1/4 + 2/5 + 1/3
    13·2 answers
  • Help me pleeeaseeee​
    14·1 answer
  • What is the value of S^3 for ????
    11·2 answers
  • Elena is trying to figure out how many movies she can download to her hard drive. The hard drive is supposed to hold 500 gigabyt
    14·1 answer
  • Identify whether the following numbers are rational or irrational i) 0.11011001100011...........
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!