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aleksley [76]
3 years ago
9

Need help please and thank you

Mathematics
2 answers:
Vladimir79 [104]3 years ago
7 0

Answer:

I think it's 2 bc if there is only a middle and end you would only put 2 flags up also 8 x 2 is 16 so that's another way you could put 2

Anna71 [15]3 years ago
5 0

Answer:2

Step-by-step explanation:

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The ratio of boys to girls at a movie is 4:7. If there are 21 girls, how many boys are ar the movie?​
Korolek [52]

Answer:

ratio of boys to girls= 4:7

number of girls=21

now,

\frac{boys}{girls}  \times \frac{no.of  \: boys}{no.of \: girs}

\frac{4}{7}  \times  \frac{boys}{21}

4 \times 21 = 7boys\: \\   \:  ({cross multiplication})

84  = 7boys

\frac{84}{7 \: }  = boys \:  \:  \: (dividing \: 84 \: by \: 7)

12 = boys

no.of \: boys = 12

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3 years ago
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3 years ago
Which fraction is equivalent to this decimal?<br><br> 0.16¯
rewona [7]

Answer: 4/25 ILY <3

Step-by-step explanation:

3 0
3 years ago
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If the infinite curve y = e−6x, x ≥ 0, is rotated about the x-axis, find the area of the resulting surface.
Ber [7]
The area:
A = 2  \pi  \lim_{b\to \infty} ( \int\limits^\infty_0 {e ^{-6x} } \, dx)
Substitution: u = - 6 x
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∫ -1/6 e^(u) du = - 1/6 e^(u) = - 1/6 e^(-6x)
A = -1/6 * 2 \pi   \lim_{b \to \infty}  (\int\limits^\infty_0 \, e ^{-6b} db) = \\ =- \pi /3 * ( e ^{-\infty} -e ^{0}) =  \\ = - \pi /3 * ( - 1 ) =
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4 0
3 years ago
How do you solve 1/2(6)(h+1)=18​
luda_lava [24]

Multiply 6 by 1/2 to get 3

Ow you have :

3( h + 1) = 18

Distribute the 3:

3h + 3 = 18

Subtract 3 from both sides:

3h = 15

Divide both sides by 3:

H = 5

4 0
3 years ago
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