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pshichka [43]
3 years ago
10

NEED HELP ASAP!!!

Mathematics
2 answers:
Liula [17]3 years ago
3 0
The answer is 84tt yd2
Klio2033 [76]3 years ago
3 0
You need 3 formulas for this problem.

area of rectangle = length × width
circumference =
2\pi \times r
area of circle =
\pi \times {r}^{2}

you use circumference to find length of rectangle so you can find the area of the rectangle and the add up th e area for the rectangle and both circles for surface area

2\pi \times 3 = 18.84
18.84 \times 14 = 263.76
\pi \times {3}^{2} = 28.26

sa = 263.76 + 2(28.26) = 320.28

320.28 ÷ 3.14 = 102tt yd^2
You might be interested in
The hypotenuse of a right triangle is 1 centimeter longer than one side and 4 centimeters longer than three times the other side
snow_tiger [21]

Answer:

Hypotenuse = 25cm

Opposite = 24cm

Adjacent = 7cm

Step-by-step explanation:

Represent:

  • The opposite with a
  • The adjacent with b
  • The hypotenuse with c

Given that:

c = 1 + a

c = 4 + 3b

Required

Solve for a, b and c

c = c

So, we have:

1 + a = 4 + 3b

Subtract 1 from both sides

a = 4 -1 + 3b

a = 3 + 3b

Apply Pythagoras Theorem

c^2 = a^2 + b^2

Substitute 3 + 3b for a and 4 + 3b for c

(4 + 3b)^2 = (3 + 3b)^2 + b^2

Open brackets

16 + 12b+12b+9b^2 = 9 + 9b+9b+9b^2 +b^2

16 + 24b+9b^2 = 9 + 18b+10b^2

Collect Like Terms

10b^2 - 9b^2 + 18b - 24b + 9 - 16 = 0

b^2 - 6b -7 = 0

Expand

b^2 +b-7b-7=0

Factorize:

b(b+1)-7(b+1) =0

(b-7)(b+1) = 0

Split:

b - 7 = 0\ or\ b+1=0

b = 7\ or\ b=-1

But the adjacent of a triangle can't have a negative measurement.

So:

b = 7

Recall that:

c = 4 + 3b

a = 3 + 3b

Substitute 7 for b in the above expressions

c = 4 + 3 * 7

c = 4 + 21

c = 25

a = 3 + 3 * 7

a = 3 + 21

a = 24

Hence, the dimensions of the triangle are:

Hypotenuse = 25cm

Opposite = 24cm

Adjacent = 7cm

5 0
3 years ago
Does anyone know how to do this
bezimeni [28]
You can turn 5 into 10/2 and add to x/2
then you need to use simple algebra to left the x alone in the equation so you need to multiply both sides by 2 so you get
2y=10+x
then you need to subtract both sides a 10 so
2y-10=x
now change the x to f'(x) and y to x so:
f'(x)=2x-10
7 0
1 year ago
Expand the brackets 5(2x + 3)
zimovet [89]

Answer:

10x+15

Step-by-step explanation:

5 x 2x=10x

5x3=15

5 0
3 years ago
Read 2 more answers
Analyze the statements below and complete the instructions that follow.
masha68 [24]

Answer c

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
URGENT!!!
ludmilkaskok [199]

Answer:

the combination of numbers must then be:

9.7 + 8.6 which results to 18.3

9.6 + 8.7 yields 18.3 as well.

LMK if I was wrong.

Yours Truly.

6 0
3 years ago
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