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3 years ago

Evaluate. write your answer as a fraction in simplest form. 2/3^3

Mathematics

1 answer:

SashulF [63]3 years ago

4 0

Well 2/3^3 is just 2/3*2/3*2/3 which is 2/3*2/3=4/9 then 4/9*2/3=8/27

So your answer is 8/27

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Simplify the expression 8^2+9(12/3*2)-7 Step by step please :)

Xelga [282]

Answer:

129

Step-by-step explanation:

${8}^{2} + 9(12 \div 3 \times 2) - 7$

$64 + 9(12 \div 3 \times 2) - 7$

$64 + 9 \times 8 - 7$

$64 + 72 - 7$

$\boxed{\green{= 129}}$

4 0

3 years ago

Which number is the largest explain how you know 58,700 or 5.87×10^5

Aleonysh [2.5K]

Answer:

5.87× $10^{5}$

Step-by-step explanation:

5.87× $10^{5}$ is 587,000 written in scientific notation.

587,000 > 58,700

5 0

3 years ago

The equation y 4.9t 2 3.5t 2.4 relates the height y in meters to the elapsed time t in seconds for a ball thrown downward at 3.5

tamaranim1 [39]

Answer:

$t \approx 0.43\,s$

Step-by-step explanation:

The vertical displacement function is $y(t) = -4.9\cdot t^{2}-3.5\cdot t + 2.4$ , where $y(t)$ is measured in meters and $t$ in seconds. Ball hits the ground when $y(t) = 0$ . That is:

$-4.9\cdot t^{2}-3.5\cdot t + 2.4 = 0$

Whose roots can be found by using the General Formula for Second-Order Polynomials:

$t_{1,2} = \frac{3.5\pm \sqrt{(-3.5)^{2}-4\cdot (-4.9)\cdot (2.4)} }{2\cdot (-4.9)}$

Solutions of this polynomial are:

$t_{1} \approx 0.43\,s,t_{2} \approx -1.14\,s$

Only the first root is physically consistent.

3 0

3 years ago

HELP PLZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

san4es73 [151]

Answer:

u = 5 and 2/3

Step-by-step explanation:

7 0

3 years ago

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Ingrid walked her dog and washed her car. The time she spent walking her dog was one-half the time it took her to wash her car.

Inessa [10]

Answer:

24m+24m=48m

Ingrid spent 48 minutes washing her car

Step-by-step explanation:

Plssss markkk me blainliest

6 0

3 years ago