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SCORPION-xisa [38]
3 years ago
10

HELP!

Mathematics
1 answer:
Vesna [10]3 years ago
4 0
A(n)=a+(n-1)d
A(40)= -1+(40-1)-4
A(40)= -1+39(-4)
A(40)= -1+(-156)
A(40)= -157
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Mr. Richard owns an orchard that has a rectagular fence . The orchard is 36 yards long and 18 yards wide . if he walks across th
Sergio [31]

Answer:

40.2 Yards

Step-by-step explanation:

To find the diagonal length of the orchard, we need to use the Pythagorean Theorem. The formula of the Pythagorean Theorem is:

c²= a² + b²

a = 36 Yards

b = 18 Yards

Now let's plug in our values to the formula.

c² = a² + b²

c² = 36² + 18²

c² = 1296 + 324

c² = 1620

Now to find the value of c we need to get the square root of both sides.

\sqrt{c^{2}}=\sqrt{1620}

c = 40.2

So the diagonal length of Mr. Richard's orchard is 40.2 Yards.

7 0
4 years ago
I need help with this
joja [24]

Answer:

8x + 8 = 6x + 20/3

Step-by-step explanation:

3 0
3 years ago
A + 1/a= p find a^3 + 1/a^3<br><br><br><br>(1) p^3 + 3p<br><br>(2) 3p<br><br>(3) p^3 - 3p<br><br>​
REY [17]

9514 1404 393

Answer:

  (3)  p^3 -3p

Step-by-step explanation:

  (a +1/a) = p . . . . . . . given

  (a +1/a)^3 = p^3 . . . . . . . . cube both sides

  a^3 +3a^2(1/a) +3a(1/a)^2 +(1/a)^3 = p^3 . . . . . . expand

  (a^3 +1/a^3) +3(a +1/a) = p^3 . . . . . . . . . . simplify, group

  (a^3 +1/a^3) +3p = p^3 . . . . . . . . . . substitute p for a+1/a

  (a^3 +1/a^3) = p^3 -3p . . . . . . subtract 3p from both sides

4 0
3 years ago
Use an Addition or Subtraction Formula to find the exact value of the expression sin(285°)
Flura [38]
Use an Addition or Subtraction Formula to find the exact value of the expression sin(285°)

5 0
3 years ago
Please help i will brainly Δdef and Δxyz are similar isosceles triangles.
aivan3 [116]

Answer:

Part 1) The ratio of the sides is 1.5

Part 2) see the explanation

Step-by-step explanation:

Part 1) we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

If  Δdef and Δxyz are similar (given problem)

then

\frac{XY}{DE}=\frac{ZY}{FE}  

substitute the values

\frac{15}{10}=\frac{ZY}{6}

solve for FY

ZY=15(6)/10=9\ cm

When two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

In this problem

The scale factor is equal to

\frac{15}{10}=\frac{9}{6}=1.5

Part 2) How you could verify that these two triangles are indeed similar.

Remember that

In similar figures the corresponding angles are congruent

so

If

m∠D≅m∠X

m∠W≅m∠Y

m∠F≅m∠Z

then

Triangles are similar

7 0
4 years ago
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