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elena-s [515]
3 years ago
12

SOMEONE HELP ME ASAP!!!!!!

Mathematics
1 answer:
Yakvenalex [24]3 years ago
5 0

Answer:

<h2>16</h2>

Step-by-step explanation:

\dfrac{4-2}{2^{-3}}=\dfrac{2}{2^{-3}}\qquad\text{use}\ \dfrac{a^n}{a^m}=a^{n-m}\\\\=2^{1-(-3)}=2^{1+3}=2^4=16

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A container holds 9 red markers, 13 blue markers, and 17 green markers. You will randomly select two markers without replacement
IRISSAK [1]

Answer:

a.

                         R-------8/38--------RR

R------9/39--------B-------13/38-------RB

                          G------17/38--------RG

                          R-------9/38--------BR

B--------13/39------B-------12/38-------BB

                           G-------17/38-------BG

                             R-----9/38--------GR

G---------17/39-------B------13/38-------GB

                              G------16/38-------GG

b).

  • 9 ways
  • ways you can select 1 blue are; RB,BR,BG,GB

RB=9/39 × 13/38=3/38

BR= 13/39 × 9/38 =3/38

BG= 13/39 × 17/38=17/114

GB= 17/39 × 13/38=17/114

=3/38 +3/38+17/114+ 17/114 =26/57

  • Probability of selecting 2 red markers= RR = 9/39 × 8/38 =12/247

  • Probability of selecting a green marker and then a red marker= GR= 17/39×9/38 =51/494

8 0
3 years ago
Jin tried to evaluate 5 + 2 x 9 step-by-step.
Zigmanuir [339]

Answer:

5 + 2 x 9

Step 1 = 7 x 9

Step 2 = 63

Step-by-step explanation:

= 5 + 2 x 9

= 5 + ( 2 x 9 )

= 5 + 18

= 23

Step 2 = 7 x 9

= 63

Step 3 = 63

C. jin did not make a mistake

<em>Sorry </em><em>i'm </em><em>wrong </em><em>:</em><em>)</em>

4 0
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The CIA estimates the world population is growing at a rate of 1.167?% each year. The world population for 2007 was about 6.6 bi
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notka56 [123]

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Step-by-step explanation:

3 0
3 years ago
Which algebraic expression represents "the bagels were divided equally into fifteen bags"? 15 + b 157b StartFraction 15 Over b E
maria [59]

Answer: (d)-  \dfrac{b}{15}

Step-by-step explanation:

Suppose 'b' is the number of bagels

It is to be divided into 15 bags

So, we use the divide operator i.e.

\Rightarrow b\ \div\ \15=\dfrac{b}{15}

5 0
3 years ago
Read 2 more answers
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