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Nana76 [90]
3 years ago
5

Simplify the product. Write the answer in standard form. (9 − 2t2)(9 + 2t2)

Mathematics
1 answer:
jenyasd209 [6]3 years ago
8 0

Answer:

-4t^4+81

Step-by-step explanation:

(9-2t^2)(9+2t^2)

−4

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In​ 2000, 54% of the residents in a large city regularly used newspapers for getting news and this has decreased at an average r
Anika [276]
X=number of years after 2000.
y=percentage of residents (still) reads newspapers for information
initial value (= y-intercept) = percentage in 2000 = 54%
slope = increase each year = -1.7% (because it is a decrease)
the slope intercept form of the equation is therefore:
y=slope(x)+initial value, or
y=-1.7x+54   (in %)
3 0
3 years ago
Clarissa made 65% of her free throws during basketball games last season. Alexis
Dmitriy789 [7]

Answer:

65+58/2

Step-by-step explanation:

That's what the answer key showed. & Your question wasn't complete.

5 0
3 years ago
I need to find Angle B, but I cant figure it out! Please help.
Alborosie

An outside angle equals the sum of the two opposite inside angles.

So you have:

(5x-35) = 2x +58

Solve for X then you can calculate Angle B:

(5x-35) = 2x +58

Subtract 2x from both sides:

3x -35 = 58

Add 35 to both sides:

3x = 93

Divide both sides by 3:

X = 93 /3

x = 31

Now for Angle B, replace x with 31:

Angle B = 2x = 2(31) = 62 degrees.

8 0
3 years ago
X=4 / y=100 if x=10 then what is y=?
Trava [24]
Y would equal 250 because 4*2=8 and 100*2=200 plus half of each so 8+2= 10 so now u have x and 200 plus 50 bc that’s half of 100 so now y=250
4 0
3 years ago
Garrett rides his bike for 8 miles in 76 minutes. How long will it take him to ride his bike 20 miles? Weeks of Which is the bet
jekas [21]

Answer: 190 minutes because if you divide 76 by 8 you get 9.5 which would be 9.5 minutes every mile so then since every mile is 9.5 minuets you multiply that by 20 and get 190 so it would be garret rode his bike 20 miles in 190 minutes

Step-by-step explanation:

7 0
3 years ago
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