2 years ago

Simplify the expression (5ab3)^2 using the properties of exponents.

1 answer:

7 0

Answer: 225 a^2 b^2

first you’d work within the parentheses and multiply 5 by 3, after that you square everything (multiply everything by itself)

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Help me please please

Natalija [7]

Answer:

<A = 16.82 degrees

Step-by-step explanation:

Tan^-1 = opposite/adjacent

Tan^-1 (13/43) = 16.82 degrees

7 0

2 years ago

PLEASE HELP... VERY URGENT... WILL GIVE BRAINLIEST!!!

lakkis [162]

Answer:

Step-by-step explanation:

a) Pythagorean theorem,

altitude² + base² = hypotenuse²

h² + (w² - 1)² = (w² + 1)²

h² = (w² + 1)² - (w² - 1)²

{Compare with (a + b)² - (a -b)² = 4ab where a =w² & b = 1}

h² = 4*w²*1

h² = 4w²

$h=\sqrt{4w^{2}} = \sqrt{2*2*w*w} \\\\\\h = 2w$

b) Area of triangle = $\frac{1}{2}b*h$

$=\dfrac{1}{2}*(w^{2}-1) *2w\\\\= (w^{2}-1)*w = w^{2}*w - 1*w\\\\=w^{3}-w$

c) w =2

Area of triangle = 3w = 3*2 = 6

7 0

2 years ago

Ivania is 12 3 4 years old. Marian is 1 3 8 years older than Ivania and Jane is 1 1 5 years older than Marian. How old is Jane?

andre [41]

Answer:

Step-by-step explanation:

it says Jane is 115 years older than Marian it means that Jane is 253 years old

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1 year ago

What is the value of the expression when y = 2?

shutvik [7]

Answer:

does not show

Step-by-step explanation:

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2 years ago

a ball is tossed into the air from a height of 8 feet with an initial velocity of 8 feet per second. Find the time t(in seconds)

Nat2105 [25]

So first you need to factor and get 8( t-1 ) (2t+1)=0. Then you need to divide both sides by 8 to isolate the equation. 0/8=0 so ( t-1 ) (2t+1)=0. Next set each of the factors = to 0 and get t-1=0 and 2t+1=0. Solve, and get t=1 and t=-1/2. The negative does not apply so you know it takes 1 second for the ball to hit the ground.

8 0

3 years ago