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777dan777 [17]
3 years ago
11

Estimate the diamiter of a circle with a circumfrance of 80 ft

Mathematics
1 answer:
LekaFEV [45]3 years ago
4 0

Answer:

25.4648 ft

Step-by-step explanation:

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Three freshmen, 3 sophomores, 3 juniors, and 3 seniors are participating on the debate team. The team's captain is randomly sele
slega [8]

Answer:

C)  \frac{3}{4}

Step-by-step explanation:

Given:

Number of freshmen = 3

Number of sophomores =3

Number of juniors =3

Number of seniors = 3

The team's captain is randomly selected from any grade level.

To find the the probability that a freshman will not be selected as captain.

Solution:

Total number of members in the team = 3+3+3+3 = 12

Probability that a freshman will be selected as captain will be:

⇒   \frac{Number\ of\ freshmen}{Total\ members}

⇒ \frac{3}{12}

Reducing to simple fraction by dividing numerator and denominator by 3.

⇒ \frac{3\div3}{12\div 3}

⇒ \frac{1}{4}

Thus, probability that a freshman will not be selected as captain will be given as:

⇒ 1-\frac{1}{4}

Taking LCD.

⇒ \frac{4}{4}-\frac{1}{4}

Subtracting the numerators.

⇒ \frac{3}{4}     (Answer)

4 0
3 years ago
Read 2 more answers
Change 26 out of 40 to a percentage
GenaCL600 [577]

Answer:

65

Step-by-step explanation:

26 divided by 40 then multiply by a hundred

6 0
3 years ago
PLEASEEEE HELPPP MEEE <br> 6 and 7 PLEASE
Nitella [24]

Answer:

Question 6

\left(5a+2\right)\left(a+4\right)=\:5a^2+22a+8

Question 7

The width is 2x.

Step-by-step explanation:

                                           Question 6)

Expand

(5a+2)(a+4)

solving to the expand

(5a+2)(a+4)

  • \mathrm{Apply\:FOIL\:method}:\quad \left(a+b\right)\left(c+d\right)=ac+ad+bc+bd

a=5a,\:b=2,\:c=a,\:d=4

so the expression becomes

=5aa+5a\cdot \:4+2a+2\cdot \:4

=5aa+5\cdot \:4a+2a+2\cdot \:4

=5a^2+20a+2a+8

adding similar elements: 20a+2a=22a

=5a^2+22a+8

Hence,

\left(5a+2\right)\left(a+4\right)=\:5a^2+22a+8

                                                  Question 7)

Given

  • A\:=\:8x^2
  • l=4x

Using the formula

width = Area/Length

          =\:\frac{8x^2}{4x}

          =2x                  ∵ \mathrm{Divide\:the\:numbers:}\:\frac{8}{4}=2

Therefore, the width is 2x.

5 0
3 years ago
At an art camp, students must specialize in one artistic medium. Last summer, 12 students
Anuta_ua [19.1K]

Answer:

Step-by-step explanation:

6 0
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What is the value of x in √x^3-1<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%20%7B3%20-%201%7D%5E%7B%3F%7D%20%7D%20" id="
Alinara [238K]
If i knew the answer i would help buttt i don’t lol.
5 0
3 years ago
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