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Lostsunrise [7]
3 years ago
9

What is the factored form of a2 – 121?

Mathematics
2 answers:
zaharov [31]3 years ago
7 0

Answer:

B

Step-by-step explanation:

i just took it

ICE Princess25 [194]3 years ago
4 0
A^2 - 11^2 = ( a - 11 )( a + 11 ), because we have the formula d<span>ifference of squares, a^2 - b^2 = ( a - b )( a + b );</span>
You might be interested in
Write down the exact value of:<br> a) cos 90 <br> b) sin 90<br> c) tan 0
viktelen [127]

Answer:

The exact value of

cos90 is 0

sin90 is 1

tan90 is indeterminate.

3 0
3 years ago
Read 2 more answers
27
katrin2010 [14]

Answer:

A  ≈ 35.3 units²

Step-by-step explanation:

Calculate the radius CB using Pythagoras' identity in the right triangle.

CB² + AB² = AC²

CB² + 6² = 9²

CB² + 36 = 81 ( subtract 36 from both sides )

CB²  = 45 = r²

Then area of quarter circle is

A = \frac{1}{4} × πr² = \frac{1}{4} × π × 45 ≈ 35.3

6 0
3 years ago
PLZ HELP A WEEB OUT!!! WILL GIVE BRAINLIST
insens350 [35]
She used the diameter instead of the radius :) instead of cubing 8 she should’ve cubed 4
3 0
3 years ago
Dave's gas tank holds 10 gallons. His car gets at most 25 miles per gallon. How far can he drive
ale4655 [162]

Answer:

m ≤ 250

(where m is miles)

Step-by-step explanation:

He can go a maximum of 250 miles on a tank of gas (25 miles per gallon * 10 gallons), and this can be expressed as follows:

m ≤ 250

3 0
3 years ago
Triangle RST is shown. What is the y-coordinate of the final image of vertex T after the triangle is reflected over the x-axis f
gavmur [86]

Answer:

R¹(-7, -3) ,  S¹(-2, -1),  T¹(-5, 4)

Step-by-step explanation:

<u><em>Step(i):-</em></u>

From the graph, the points are R(-4,5), S(1,3),T(-2,-2)

First, the points are reflected over the x-axis then  transform in to

(x,y)→(x,-y)

R(-4,5)→R¹(-4,-5)

S(1,3)→S¹(1,-3)

T(-2,-2)→T¹(-2,2)

<u><em>Step(ii):-</em></u>

Next, The points are shifted to 3 units left then the transform

(x,y)→ (x -3 ,y)

R¹(-4,-5)→ R¹(-4-3, -5) → R¹(-7, -5)

S¹(1,-3)   →   S¹(1-3, -3) →  S¹(-2, -3)

T¹(-2,2)  →   T¹(-2-3, 2)→ T¹(-5, 2)

<u><em>Step(iii):-</em></u>

Now again the points are shifted to '2' units up then transform to

(x,y) )→ (x  ,y+2)

R¹(-7, -5+2) →  R¹(-7, -3)

 S¹(-2, -3+2) →  S¹(-2, -1)

 T¹(-5, 2+2)  →  T¹(-5, 4)

4 0
3 years ago
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