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IgorLugansk [536]
3 years ago
7

What is 13/25 - 2/3?

Mathematics
1 answer:
Bas_tet [7]3 years ago
8 0
-11/75 is the answer. The first step would be to write the numerators above the lcd and then subtract and rewrite the fraction.

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Evaluate (a + b)^2 for a = 2 and b = 3.
shepuryov [24]
Hope this helps you!!!

3 0
3 years ago
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Matlab a farmer wishes to build a rectangular pen for his animals out of 40 feet of fencing what should be the length and width
ASHA 777 [7]
Width=w
length=(40-2w)/2=20-w
A=w(40-w)
A=40w-w²
A'=40-2w=0
2w=40
w=20

20x20 is the size of the pen having the greatest area. this tells us the largest rectangle for a given perimeter is a square
8 0
3 years ago
Number 4 please!!!!!
Kazeer [188]

Answer:9787987987987987899999999888888888888888888'

Step-by-step explanation:

that that that 14523095480239845023984203984230482309423094823029834

8 0
3 years ago
2) ABCD is a rectangle, answer each question and explain how you get the a
garik1379 [7]

Answer:

m∠ABC = 90°, because the four angles are equal and their sum is 360°, then 360 ÷ 4 = 90°

DE = 6 units, because it is half DB which is equal to AC and AC = 12

m∠2 = 55°, because the sum of the measures of ∠1 and ∠2 is 90°

m∠4 = 75°, because it is equal m∠EAD and m∠2 in Δ AED which has ∠5

Step-by-step explanation:

Let us revise the properties of a triangle

  • Each two opposite sides are equal and parallel
  • Its two diagonals bisect each other and equal
  • Its four angles are equal and the measure of each one is 90°

∵ ABCD is a rectangle

∴ m∠ABC = 90°

m∠ABC = 90°, because the four angles are equal and their sum is 360°, then 360 ÷ 4 = 90°

∵ AC and BD are the diagonals of the rectangle

∴ AC = BD

∵ AC = 12 units

∴ BD = 12 units

∵ The two diagonals bisect each other

∴ E is the mid-point of AC and BD

∴ AE = EC = \frac{1}{2} AC

∴ DE = EB = \frac{1}{2} DB

∵ DB = 12 units

∴ DE =  \frac{1}{2}  × 12 = 6 units

DE = 6 units, because it is half DB which is equal to AC and AC = 12

∵ m∠D = 90° ⇒ property of rectangle

∵ m∠D = m∠1 + m∠2

∴ m∠1 + m∠2 = 90°

∵ m∠1 = 35°

∴ 35 + m∠2 = 90

- Subtract 35 from both sides

∴ m∠2 = 55°

m∠2 = 55°, because the sum of the measures of ∠1 and ∠2 is 90°

In Δ AED

∵ ED = EA ⇒ halves of equal diagonals are equal

∴ m∠EAD = m∠2 ⇒ base angles of an isosceles triangle

∵ m∠5 = 30°

- The sum of the interior angles of a triangle is 180°

∴ m∠2 + m∠2 + m∠5 = 180

∴ 2 m∠2 + 30 = 180

- Subtract 50 from both sides

∴ 2 m∠2 = 150

- Divide both sides by 2

∴ m∠2 = 75°

∴ m∠EAD = 75°

∵ AD // BC ⇒ opposite sides in a rectangle

∵ AC is a transversal

∴ m∠DAE = m∠4 ⇒ alternate angles

∴ m∠4 = 75°

m∠4 = 75°, because it is equal m∠EAD and m∠2 in Δ AED which has ∠5

4 0
3 years ago
For all values of x,
olga55 [171]

Answer:

fg(x)=f(10x²+5)=(10x²+5)/5+3=10x²/5+5/5+5

=2x²+1+5=2x²+6

5 0
2 years ago
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