All categories

3 years ago

SOMEONE PLEASE HELP ME ASAP PLEASE!!!

Mathematics

1 answer:

Strike441 [17]3 years ago

5 0

Answer:

105.12 ft^2

Step-by-step explanation:

Area of a rectangle: bh

In this case 8*10.... so area of the rectangle is 80

Area of a circle: pir^2

Half it for a semicircle.

so 1/2 pi r^2

radius is 4 cuz its half of 8.

so 1/2(3.14)(4^2)=(0.5)(3.14)(16)=25.12

Now add up 80+25.12

Total is 105.12

Hope I helped :)

You might be interested in

Below is an Algebraic Proof that shows how the expression x(1+y) + y(2+x) is equivalent to x + 2xy + 2y. Some of the steps are l

harina [27]

Answer:

Step-by-step explanation:

Steps Property

x(1 + y) + y(2 + x) Given

x + xy + 2y + xy Distributive property

x + xy + xy + 2y Commutative property of addition

[a + b = b + a]

x + (xy + xy) + 2y Associative property of addition

[(a + b) + c = a + (b + c)]

x + 2xy + 2y Combine like terms

5 0

3 years ago

What is the answer to 453 divided by 8.

Mandarinka [93]

The answer of 453 divided by 8 is 56,625.

3 0

3 years ago

Read 2 more answers

given three points of a quadratic function find the equation that defines the function (-2,20)(0,-2)(1,-4) hurry please!!

kotykmax [81]

Answer:

D: y = 3x² - 5x - 2

Step-by-step explanation:

The general form of a quadratic equation is: y = ax² + bx + c

c is the y-intercept

We are given the point (0, -2) which is the y-intercept, so we can rewrite our general form into

y = ax² + bx - 2

We can create a system of equations to solve for a and b. We are given two points.

Equation 1: Take the first point (-2, 20) and plug it into our general equation...

20 = a(-2)² + b(-2) - 2

20 = 4a - 2b - 2

22 = 4a - 2b (add 2 to both sides)

11 = 2a - b (divide both sides by 2 since every coefficient is even)

Equation 2: Take the point (1, -4) and plug it into the general equation

-4 = a(1)² + b(1) - 2

-4 = a + b - 2

-2 = a + b

Now we have our 2 equations:

11 = 2a - b

-2 = a + b

Since the coefficients of b are already have opposite signs, add the two equations together (elimination method)

Now we have

9 = 3a now solve for a...

3 = a (divide by 3 on both sides)

If a = 3, then

-2 = 3 + b

-5 = b

Our equation is

y = 3x² - 5x - 2

6 0

3 years ago

Suppose the half-life of a decaying radioactive isotope is 674 years. How long will it takefor the isotope to decay from 100 gra

KonstantinChe [14]

The half life formula is :

$N(t)=N_o(\frac{1}{2})^{\frac{t}{T}}$

where N(t) = remaining quantity after t years

No = Original Quantity

t = time in years

T = half life in years

From the problem, we have :

N(t) = 30 grams

No = 100 grams

T = 674

Solve for t :

$\begin{gathered} 30=100(\frac{1}{2})^{\frac{t}{674}} \\ \frac{30}{100}=(\frac{1}{2})^{\frac{t}{674}} \\ \frac{3}{10}=(\frac{1}{2})^{\frac{t}{674}} \end{gathered}$

Take ln of both sides :

$\begin{gathered} \ln (\frac{3}{10})=\ln (\frac{1}{2})^{\frac{t}{674}} \\ \ln (\frac{3}{10})=\frac{t}{674}\ln (\frac{1}{2}) \\ t=\frac{674\ln (\frac{3}{10})}{\ln (\frac{1}{2})} \\ t=1170.71 \end{gathered}$

The answer is t = 1170.71 years

5 0

1 year ago

On December 31, 2019, Akron, Inc., purchased 5 percent of Zip Company's common shares on the open market in exchange for $16,050

Anastaziya [24]

The amount reported for the investment in Zip Company by Akron's December 31, 2021, balance sheet is <u>$143,400</u>, which is the fair value of the Common Stock of Zip Company.

<h3>What is the fair value of an investment?</h3>

The fair value of an investment is the current value and not the historical cost when the investment was made.

Fair value refers to the intrinsic worth of an asset or security.

<h3>Data and Calculations:</h3>

Income Dividends Common Stock Akron's Investment

Declared Fair Value (12/31) in Zip Company

2019 $321,000 $16,050 ($321,000 x 5%)

2020 $79,000 $6,200 376,000 $94,000 ($376,000 x 25%)

2021 89,000 15,800 478,000 $143,400 ($478,000 x 30%)

Excess attributed to share of Zip's franchises = $33,350 ($143,400 - $110,050).

Thus, the amount reported for the investment in Zip Company by Akron's December 31, 2021, balance sheet is <u>$143,400.</u>

Learn more about the fair value of an investment at brainly.com/question/13219936

#SPJ1

5 0

2 years ago

SOMEONE PLEASE HELP ME ASAP PLEASE!!!​

SOMEONE PLEASE HELP ME ASAP PLEASE!!!