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3 years ago

3^−1⋅(4⋅6)⋅2^−3= Someone please help me!

Mathematics

1 answer:

Andrew [12]3 years ago

8 0

It's 1 over 3 to the root of 110592

Phew, that took a long time!

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The angle bisector of ∠ACD in rhombus ABCD makes a 64° angle with the diagonal BD. Find the measure of ∠BAD.

saveliy_v [14]

The complete question in the attached figure

we know that
the diagonals of a rhombus intersect to form right angles,
so
angle ACE is ----------> (90°-64°)-----------> 26°
ACE is the angle bisector of ACD, this means that ACD is ---------> 26 x 2 = 52°

The diagonals are angle bisectors to the opposite corners
so
ACD = ACB = 52°
and
BCD = 52 x 2 = 104°
For a rhombus, opposite angles are equivalent,
so
BAD = BCD = 104°

the answer is
angle BAD=104°

3 0

3 years ago

HELP ME PLEASEE

Nina [5.8K]

Answers:

x = -8/5 or x = 8/5

Sum of the first ten terms where all terms are positive = 4092

========================================================

Explanation:

r = common ratio

first term = 4
second term = (first term)*(common ratio) = 4r
third term = (second term)*(common ratio) = (4r)*r = 4r^2

The first three terms are: 4, 4r, 4r^2

We're given that the sequence is: 4, 5x, 16

Therefore, we have these two equations

5x = 4r
4r^2 = 16

Solve the second equation for r and you should find that r = -2 or r = 2 are the only possible solutions. If r = -2, then 5x = 4r solves to x = -8/5. If r = 2, then 5x = 4r solves to x = 8/5.

-----------------

To find the sum of the first n terms, we use this geometric series formula

Sn = a*(1 - r^n)/(1 - r)

We have

a = 4 = first term
r = 2, since we want all the terms to be positive
n = 10 = number of terms to sum up

So,

Sn = a*(1 - r^n)/(1 - r)

S10 = 4*(1 - 2^10)/(1 - 2)

S10 = 4*(1 - 1024)/(-1)

S10 = 4*(-1023)/(-1)

S10 = 4092

8 0

3 years ago

Help with inequality

Alona [7]

Answer:

1. x>20 2. x≤1 3.x<4 4.x>9 5.x≥-13

6 0

3 years ago

So, these problems are currently my last two problems. There were two rude people that answered them and didn't actually give me

Papessa [141]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

You don’t have to explain this just tell me the tight answer

Ira Lisetskai [31]

Answer:

The triangles are similar by the AA similarity postulate

Step-by-step explanation:

The only thing we know is that the three angles are the same

70+30 +80 = 180 so the missing angle in each triangle is 80 in the first and 70 in the second

The triangles are similar by the AA similarity postulate

3 0

3 years ago