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kobusy [5.1K]
2 years ago
11

Help me i actually need this asap...Only right answer ..​No spammer.No wrong answer.

Mathematics
2 answers:
Leona [35]2 years ago
7 0
  1. \sqrt[3]{8} \: -  \sqrt{3}
katrin2010 [14]2 years ago
6 0

.............5b............

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The sector of a circle is shown below. It has a radius of 10 centimeters and a central
disa [49]

Answer:

1) 8.9 cm

2) 44.5 cm^2

Step-by-step explanation:

a) we want to calculate the length of the arc

Mathematically, we use the formula for the length of an arc

That will be ;

theta/360 * 2 * pi * r

theta = central angle = 51

r is radius = 10 cm

so we have ;

51/360 * 2 * 22/7 * 10 = 8.9 cm

2) The area of the sector is;

theta/360 * pi * r^2

51/360 * 22/7 * 10^2

= 44.5 cm^2

5 0
3 years ago
Find the value of x. round your answer to the nearest tenth.
Yakvenalex [24]

9514 1404 393

Answer:

  x ≈ 13.7

Step-by-step explanation:

The relevant trig relation is ...

  Tan = Opposite/Adjacent

  tan(58°) = 22/x

  x = 22/tan(58°) ≈ 13.747

The value of x is about 13.7 units.

5 0
3 years ago
The domain of discourse is sets. Suppose some predicate Q is true for all elemenst of A: ∀a ∈ A Q(a). Recall the definition of s
Sloan [31]

Answer:

See the step-by-step explanation

Step-by-step explanation:

Let c be any element of C. (I'm not sure wether you have to assume that C is non-empt or not)

C is a subset of B. That means that as c is  in C, it is also in B. (c \in C \Rightarrow  c \in B)

Now, B is a subset of A. It follows that as c \in B \Rightarrow c \in A.

That means c is an element of A. The predicate Q is true for all elements of A, including c.

Because we let c be any element of C, we have proven that the predicate Q is true for all elements in C.

5 0
3 years ago
Help please! I just need to know how to do this step by step...
Alex787 [66]

-8 - 5n = 64 + 3n

    +5n          +5n           add 5n to both sides, 5n's cancel out on the left.

______________

-8 = 64 + 8n

-64 -64                          subtract 64 on both sides, 64's cancel out on the right.

______________

-72 = 8n

___  ___                       divide 8 on both sides, 8's cancel out from the right.

 8      8

n= -9, final answer

7 0
2 years ago
Read 2 more answers
Tara and jodys bedrooms are shaped like rectangles . Tara bedroom is 9 feet long and 8 feet wide. jodys bedroom is 7 feet long a
evablogger [386]
We know that the area of a rectangle is A=L*W
A of Tara's bedroom,
A(Tara)=9*8=72 square feet
A(Jody)=7*10=70 square feet

Tara's bedroom has a greater area
7 0
3 years ago
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