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
Tamiku [17]
3 years ago
8

If (9x − 4)(9x + 4) = ax^2 − b, what is the value of a?

Mathematics
2 answers:
ASHA 777 [7]3 years ago
6 0
A=81
Hope this helps :)
deff fn [24]3 years ago
3 0
Hope this helps you.

You might be interested in
Parallelogram ABCD is given. Draw line EF so that it goes through the vertex A. Point E lies on the side BC and point F lies on
tresset_1 [31]

Answer:

The proof is explained step-wise below :

Step-by-step explanation :

For better understanding of the solution see the attached figure :

Given : ABCD is a Parallelogram ⇒ AB ║ DC and AD ║ BC

Now, F lies on the extension of DC. So, AB ║ DF

To Prove : ΔABE is similar to ΔFCE

Proof :

Now, in ΔABE and ΔFCE

∠ABE = ∠FCE ( alternate angles are equal )

∠AEB = ∠FEC ( Vertically opposite angles )

So, by using AA postulate of similarity of triangles

ΔABE is similar to ΔFCE

Hence Proved.

7 0
3 years ago
9 members of a club. Need 3 officers. How many combinations are possible.
irina [24]

Answer:

I think its 3 combos

Step-by-step explanation:

9÷3=3 combos?

Hope this helps :D

3 0
2 years ago
HELP ASAP SHOW YOUR WORK AND EXPLAIN HOW YOU GOT YOUR ANSWER-NO LINKS OR JOKING AROUND
Alexxx [7]

Step-by-step explanation:

1) -5x<35

we divide both sides by 5

-5x/5<35/5

-x<7

we divide both sides by-1 to remove the negative sign

-x/-1<7/-1

x<7/-1

2) 2x>-42

we divide both sides by 2

2x/2>-42/2

x>-21

3) x/3≤-7

we multiply by 3 and we cancel 3

3(x/3)≤3(-7) we cancel the 3

x≤-21

4) x/-4≥-4

we do the same thing

x≥1

8 0
2 years ago
In the kite, the orange diagonal is 10 units and the purple diagonal is 14 units. What is the area of the kite?
Vlada [557]

Answer: 70 square units

Step-by-step explanation:

Area of kite = (one diagonal * another diagonal) / 2

10 * 14 = 140

140 / 2 = 70

3 0
2 years ago
Graph the inequality 4x -2y &lt; 8
iris [78.8K]

Mine is pretty rough but hope it helps look at the attached image.

8 0
3 years ago
Other questions:
  • Round 235,674 to the nearest thousand. <br> A. 235,700<br> B. 236,000<br> C. 240,000<br> D. 235,670
    6·2 answers
  • *50 POINTS + BRAINLIEST HELP ASAP OMG PLEASE I CAN'T FIGURE THIS OUT*
    12·2 answers
  • Help please ASAP!!! I need to answer this correctly!!!
    7·1 answer
  • Let f(x) = |x|, ????????(x) = f(x − 3), and h(x) = f(x + 2), where x can be any real number.
    11·1 answer
  • an airplane completed 900 miles of a 1200-mile flight. What percent of the trip remains to be completed?
    8·1 answer
  • How to simplify -2(x-6)
    11·2 answers
  • Which interval for the graphed function contains the local maximum?
    12·1 answer
  • Please help I found this confusing​
    13·1 answer
  • Haley bought 2.5 pounds of almonds for $16.20. How much did she pay per pound for the almonds?
    13·1 answer
  • In the diagram above, &lt;1=40. Find the measure of &lt;4 <br> &lt;4 = [???]
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!