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Galina-37 [17]
3 years ago
7

If a car tire has a diameter of 32 inches, what is the approximate circumference of the

Mathematics
2 answers:
elena-14-01-66 [18.8K]3 years ago
7 0

Answer: 100 inches

Step-by-step explanation:

The Circumference of the tire is given as 2πr or πd, where r stands for the radius and d stands for the diameter , since the diameter is given ,

C =  πd

C = \frac{22}{7} x 32

C = \frac{704}{7}

C ≈ 100 inches

BaLLatris [955]3 years ago
5 0

Answer: I feel ike it should be C

Step-by-step explanation:

I just guessed

:)

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What is the tan if x?
Ne4ueva [31]

\qquad\qquad\huge\underline{{\sf Answer}}

The given triangle is a right triangle, with one of the acute angle measuring 45°

let's calculate x ~

\qquad \tt \dashrightarrow \:x + 45 + 90 = 180

\qquad \tt \dashrightarrow \:x + 135 = 180

\qquad \tt \dashrightarrow \:x = 180 - 135

\qquad \tt \dashrightarrow \:x = 45 \degree

So, tan x is :

\qquad \tt \dashrightarrow \:  \tan(x)  = \tan(45 \degree)

[ since x = 45° ]

\qquad \tt \dashrightarrow \: \tan(x)  = 1

8 0
3 years ago
Write the standard form of the equation of the circle described below.
sleet_krkn [62]

Equation of circle is x^2+(y-2)^2=52

Step-by-step explanation:

The standard form of the equation of circle is:

(x-h)^2+(y-k)^2=r^2

where (h,k) is the center of the circle and r is the radius of circle.

We need to find the radius of circle r by using distance formula:

[tex]r=d=\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}\\r=d=\sqrt{(4-0)^2+(-4-2)^2}\\r=d=\sqrt{(4)^2+(-6)^2}\\r=d=\sqrt{16+36}\\r=d=\sqrt{52}

r=√52

and r^2= 52

Putting values of r^2=52 and value of center (h,k)=(0,2)

the equation of Circle is:

(x-h)^2+(y-k)^2=r^2\\(x-0)^2+(y-2)^2=52\\x^2+(y-2)^2=52

Keywords: Equation of circle

Learn more about Equation of circle at:

  • brainly.com/question/1952668
  • brainly.com/question/2115496
  • brainly.com/question/3333996

#learnwithBrainly

4 0
3 years ago
The football team has played 12 games so far this season. They have won 8 games. What percent of their games has the team lost?
Stells [14]
I hope this helps you




if team lost 4 games in 12 games


? lost games in 100 games



?.12=4.100


?=100/3



?=33.3%
3 0
3 years ago
Read 2 more answers
(52 divided by 4) + 5 exponent 3
SOVA2 [1]

the answer is 138, because you divide first then add and then multiply.

8 0
3 years ago
Read 2 more answers
Which of the following does not factor as a perfect square trinomial?
Ede4ka [16]

Answer:

Option C. x^2-18x-81

Step-by-step explanation:

A. 16a^2-72a+81

x^2-2xy+y^2=(x-y)^2

x^2=16a^2→sqrt(x^2)=sqrt(16a^2)→x=sqrt(16) sqrt(a^2)→x=4a

y^2=81→sqrt(y^2)=sqrt(81)→y=9

2xy=2(4a)(9)→2xy=72a equal to the second term of the expression, then we can factor as a perfect square trinomial:

16a^2-72a+81=(4a-9)^2


B. 169x^2+26xy+y^2

a^2+2ab+b^2=(a+b)^2

a^2=169x^2→sqrt(a^2)=sqrt(169x^2)→a=sqrt(169) sqrt(x^2)→a=13x

b^2=y^2→sqrt(b^2)=sqrt(y^2)→b=y

2ab=2(13x)(y)→2ab=26xy equal to the second term of the expression, then we can factor as a perfect square trinomial:

169x^2+26xy+y^2=(13x+y)^2


C. x^2-18x-81

a^2+2ab+b^2=(a+b)^2

This expression does not factor as a perfect square trinomial because the third term is negative (-81).


D. 4x^2+4x+1

a^2+2ab+b^2=(a+b)^2

a^2=4x^2→sqrt(a^2)=sqrt(4x^2)→a=sqrt(4) sqrt(x^2)→a=2x

b^2=1→sqrt(b^2)=sqrt(1)→b=1

2ab=2(2x)(1)→2ab=4x equal to the second term of the expression, then we can factor as a perfect square trinomial:

4x^2+4x+1=(2x+1)^2

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