MATHEMATICS MIDDLE SCHOOL

Which equation can be used to calculate the area of the shaded triangle in the figure below?A rectangle with a length of 18 feet and width of 4 feet. A diagonal cuts the rectangle into two halves. One of the triangular halves is shaded.
(1 point)

2(18 + 4) = 44

fraction 1 over 2 (18 + 4) = 11

2(18 × 4) = 144

fraction 1 over 2 (18 × 4) = 36

Answers

Answer 1

Answer:

Answer:

fraction 1 over 2 (18 × 4) = 36

$\because$ Area of standard triangle

$= (1)/(2) * base* height.$

Where,

Base of triangle = lenght of rectangle = 18 feet

Height of triangle = width of rectangle = 4 feet

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2x-4/10 = 2x/20 Solve for x.
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Find the total price including 7percent tax on a $9.79 purchase

What is 30% of a $24.50 item

Answers

$24.50*0.3 = $7.35
The answer is $7.35

30% = 0.3
0.3 * 24.5 = 7.35
30% of $24.50 is $7.35

One circular table has a diameter of 9ft, and another circular table has a diameter of 14ft. How much greater is the area of the larger table? round to the nearest whole number.

Answers

$Area \ of \ a \ Circle : \n \nA= \pi r^2 \n \n diameter : \ d_(1)= 9 \ ft \n radius : r_(1) =(d_(1))/(2)=(9)/(2)=4.5 \ ft \n \n d_(2)= 14 \ ft \n radius : r_(2) =(d_(1))/(2) =(14)/(2)=7 \ ft \n \nA_(1)= (4.5)^2 \pi=20,25 \ cdot 3.14 = 63.585 \ ft^2 \n \nA_(2)= 7^2 \pi=49 \cdot 3.14 = 153.86 \ ft^2 \n \n A_(2)-A_(1)= 153.86 - 63.585 = 90.275 \approx 90 \ ft^2$

Area of circle= πr²
r-radius

A1-area of table with diameter 9ft
A2-area of circle with diameter 14ft
d=2r

A1=π*(4,5)²=20,25π
A2=π*7²=49π

A2-A1=49π-20,25π=28,75π=90,275≈90ft²

49.4if f(x) - x-3/x and g(x) = 5x – 4, what is the domain of (fºg)(x)?
o {1x80}
* {1x^3}
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Answers

Answer:

domain is set of all real number except 4/5

Step-by-step explanation:

$f(x)= (x-3)/(x)$

$g(x)=5x-4$

Now we find (fºg)(x)

(fºg)(x)=f(g(x))

We plug in g(x) inside in f(x)

$f(g(x))=f(5x-4)= ((5x-4)-3)/(5x-4)$

Now simplify the numerator

$f(g(x))=((5x-4)-3)/(5x-4)=(5x-7)/(5x-4)$

To find out domain we set the denominator =0 and solve for x

$5x-4=0$

Add 4 on both sides

$5x=4$

Divide both sides by 5

$x=(4)/(5)$

So domain is set of all real number except 4/5

Answer:

Answer:

{x ∈ R ∣ x ≠ 4/5}

Step-by-step explanation:

What is the area of the equilateral triangle?

Answers

the area of an equilateral triangle is A= 3/4a squared.

Circle the odd number of 10,8,3,4

Answers

odd numbers end in 1,3,5,7,9
the odd number is 3
aka you can't divide it y 2 niccley
10/2=5
8/2=4
3/2=nastynumber
4/2=2

odd is 3

and odd number is simply a number that isn't divisible by 2 so i would divide all the numbers by 2
10/2 = 5
8/2 = 4
3/ 2 = 1 1/2
4/2 = 2
therefore, 3 is the odd number.

let me know if you have any questions!!!!

Bella pays 7 payments of $5 each to a game store. She returns none game and receives $20 back. What is the change to the amount of money she has.

Answers

Answer:

Bella has $15 less

Step-by-step explanation:

Bella made 7 payments of $5 each. So, total payment made by her was $7*$5 = $35$ . As such, Bella had $35 initially. She played all games and received $20 back. This means that she lost $ 15 that is $35 - $20 = $15, in the game.

Therefore, she now has $15 less than the amount of $35 that she had initially. So, $15 is the the change to the amount she has now.

15$7 payments of 5$ = 35$ if she only gets 20$ back she lost 15$

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