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Dmitriy789 [7]
3 years ago
11

(4+2n^3) + (5n^3+2)

Mathematics
2 answers:
pychu [463]3 years ago
8 0
You just have to combine like terms here
6+7n^3 is the final answer

adell [148]3 years ago
4 0
Combine like terms to get 7n³+6
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What is this!!!!!! what is this
Temka [501]

Answer:

qn

Step-by-step explanation:

4 0
3 years ago
Find the measure of DB (a curvy line is on top of DB btw)
klasskru [66]

Answer:

Arc DB = 146

x = 5

Step-by-step explanation:

Remark

The relationship between the large arc, the small arc and the intersecting angle is

1/2 (large arc - small arc) = intersecting angle.

Givens

Large arc = 25x + 21

Small arc = 96

5x

Solution

1/2*(25x + 21 - 96) = 5x*2            Multiply both sides by 2

25x + 21 - 96 = 10 x                     Combine      

25x - 75 = 10x                             Subtract 25x from both sides

-75 = 10x - 25x

-15x = -75

x = 5

DB = 25x + 21

DB = 25*5 + 21

DB = 125 + 21

DB = 146

Tell me if this is not in the choices.

5 0
2 years ago
How do I solve for X?
Dmitriy789 [7]

The value of x in the special right triangle is 39.60 ft.

<h3>Right angle triangle</h3>

Right angle triangle has one of its angles as 90 degrees. The side and angles can be found using trigonometric ratios.

Therefore, let's find the base of the triangle with 30 degrees.

sin 30° = opposite / hypotenuse

1 / 2 = 7 / b

b = 14 ft

Let's use the value(14 ft) to find the height of the biggest triangle.

sin 30 = opposite / hypotenuse

sin 30 = 14 / h

0.5h = 14

h = 14 / 0.5

h = 28 ft

Therefore, let's find the value of x .

sin 45° = 28 / x

x = 28 / 0.70710678118

x = 39.5979797464

x = 39.60 ft

learn more on right triangle here: brainly.com/question/10412877

8 0
2 years ago
What is the measure of angle B, m
gladu [14]

Answer:

70 degrees

Opposite angles are equal to each other

7 0
2 years ago
I need help with this ​
zaharov [31]
Yes it’s a rectangle because the diagonals bisect each other, and they are equal in length.
7 0
2 years ago
Read 2 more answers
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