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3 years ago

Really need this answered :/ thank you

Mathematics

1 answer:

VladimirAG [237]3 years ago

5 0

Answer:

i believe its the third one don't quote me on that though

Step-by-step explanation:

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I need help with this expression 8(3x+4)-20

Ierofanga [76]

Answer:24x+12

Step-by-step explanation:

8(3x+4)-20

24x+32-20

24x+12

8 0

3 years ago

Read 2 more answers

Find the average of e^-x over [0,3]

yaroslaw [1]

The average value of a continuous function f(x) over an interval [a, b] is given by the integral,

$\displaystyle \frac1{b-a}\int_a^b f(x)\,\mathrm dx$

Compute the integral for f(x) = e ⁻ˣ over [0, 3] :

$\displaystyle \frac1{3-0}\int_0^3e^{-x}\,\mathrm dx=\frac13(-e^{-x})\bigg|_0^3=\frac13(-e^{-3}-(-e^{-0})) = \frac13 \left(1-\frac1{e^3}\right) = \boxed{\frac{e^3-1}{3e^3}}$

8 0

3 years ago

Math question please show work due today last day to submit Assignments or I fail please help

Nataly [62]

Answer:

A. 41

B. 1,590

C. .1

Step-by-step explanation:

the equation is l*w=A

9.2*4.5=A

41.4=A

rounded it would be 41

the equation is pi*r^2=A

3.14*22.5^2=A

3.14*506.25=A

1,589.6=A

^round this up to get 1,590

what I did was use a*b/2 to find one side then add the other side (less complicated in my opinion)

.5*.2/2=A

.1/2=A

.05=A

.05+.05=0.1

6 0

3 years ago

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What is the simplified form of each expression? t^8(t^10)^0

Bogdan [553]

I think t^8 would be the simplified form

8 0

3 years ago

What is the probability that Jake's throw will earn at least 30 points?

Makovka662 [10]

Answer:

33.5%

Step-by-step explanation:

Area of whole dartboard

radius = 3 + (4 x 4) = 19

⇒ area of whole dartboard = $\pi$ 19² = 361 $\pi$

Area of 30, 40 and 50 points zone

radius = 3 + (2 x 4) = 11

⇒ area of at least 30 points = $\pi$ 11² = 121 $\pi$

Probability

probability = (121 $\pi$ ÷ 361 $\pi$ ) x 100 = 33.5%

8 0

3 years ago