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
aleksklad [387]
3 years ago
13

Factor completely 2. 4x² – 9 [2 pts]

Mathematics
1 answer:
Nat2105 [25]3 years ago
8 0

Answer:

(2x+3) (2x-3)

Step-by-step explanation:

Both 4 and 9 have square roots and the problem is a difference of two squares. So if factored, one parenthesis will have a - and the other will have a +.

You might be interested in
Can you help me with these please 30 points
garik1379 [7]

Answer: 1. densities

2. i don’t have the passage but i assume it to be A or D

3. it will sink so A

Step-by-step explanation:

the density must be lower than 1 g/cm3 for it to float

3 0
3 years ago
Read 2 more answers
Find the tenth term in each sequence. -1,2/3,7/3,4,17/3
Luba_88 [7]

It'a an arithmetic sequence:

a_1=-1\\\\a_2=-1+\dfrac{5}{3}=-\dfrac{3}{3}+\dfrac{5}{3}=\dfrac{2}{3}\\\\a_3=\dfrac{2}{3}+\dfrac{5}{3}=\dfrac{7}{3}\\\\a_4=\dfrac{7}{3}+\dfrac{5}{3}=\dfrac{12}{3}=4\\\\a_5=4+\dfrac{5}{3}=\dfrac{12}{3}+\dfrac{5}{3}=\dfrac{17}{3}\\\vdots\\\\\text{The general formula for nth term of an arithmetic sequence}\\\\a_n=a_1+(n-1)d\\\\\text{We have}\ a_1=-1\ \text{and}\ d=\dfrac{5}{3}.\\\\\text{Substitute}\\\\a_n=-1+(n-1)\left(\dfrac{5}{3}\right)=-1+\dfrac{5}{3}n-\dfrac{5}{3}=\dfrac{5}{3}n-\dfrac{3}{3}-\dfrac{5}{3}

\boxed{a_n=\dfrac{5}{3}n-\dfrac{8}{3}}

5 0
3 years ago
I'll give you brainiest and lots of points..
irinina [24]
It’s A since 7/8 x (-16) is -14 then -14 x (-7) is 98 and 98 x (-1/14) is -98/14 which gets -7
3 0
2 years ago
What is sine times secant
laiz [17]
Sin time secant = sin(x)*1/cos(x) = tan(x)!!
7 0
3 years ago
What is (f⋅g)(x)?<br><br><br><br> f (x) =x^4−9<br><br> g (x) =x^3+9
mojhsa [17]
<span>(f⋅g)(x)=f(x)*g(x) 
</span>f(x)*g(x) = (x⁴−9)(x³+9)=x⁴x³+9x⁴-9x³-81=x⁷+9x⁴-9x³-81
(f⋅g)(x)=x⁷+9x⁴-9x³-81
3 0
3 years ago
Other questions:
  • Consider that a 1/2 cup of serving of 1% cottage cheese is equivalent to 125 grams. If one once of cottage cheese is equivalent
    7·1 answer
  • Will the first digit of the quotient of 2589 divided by 4 be in the hundreds or thousands place? Explain how you can decide with
    13·1 answer
  • Write a verbal statement that represents the expression h ÷ 8.<br><br> PLEASE EXPLAIN HOW I DO THIS
    9·2 answers
  • Six times a number is equal to eight more than five times the number
    13·1 answer
  • Find the domain of the function. (Enter your answer using interval notation.) f(x) = 7 − 1 2 x if x ≤ 2 8x − 4 if x &gt; 2 g
    10·1 answer
  • F(x) = (x + 3)(x + 5).
    7·2 answers
  • The Natural History Museum has a 1:60 scale model of a tyrannosaurus rex dinosaur. The length of the model is 20 centimeters. Fi
    6·1 answer
  • Exercise 2
    9·1 answer
  • Simply. Rewrite the expression in the form x^n. x^6/x^8
    15·1 answer
  • A bag contains 170 marbles. There are red, blue and yellow marbles in a ratio of 9:3:5. How many yellow marbles does the bag con
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!