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Kay [80]
3 years ago
14

No fake answers, thank you. I will happily give brainiest to anyone that answers them all correctly.

Mathematics
2 answers:
True [87]3 years ago
4 0
A) 3/2 b) 6 c) at 1.5 weeks the plants grew 2.25 inches hope this helps
kkurt [141]3 years ago
3 0
Sorry I can’t buddy........................................................:(
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The dual bar chart shows the hair colour of boys and girls in a year group. How many students are in the year group?
notka56 [123]

Answer:

102

Step-by-step explanation:

24+12+5+17+6+19+4+15=102

5 0
3 years ago
Complete the equation describing how x<br> and y are related.
Natali5045456 [20]

Answer: -5

Step-by-step explanation:

4 0
3 years ago
Select all the expressions that are equivalent to (2)^n+³
eimsori [14]

Answer:

The expressions which equivalent to  (2)^{n+3} are:

4(2)^{n+1}  ⇒ B

8(2)^{n} ⇒ C

Step-by-step explanation:

Let us revise some rules of exponent

  • a^{m} × a^{m}  = a^{m+n}
  • (a^{m})^{n} = a^{m*n}

Now let us find the equivalent expressions of  (2)^{n+3}

A.

∵ 4 = 2 × 2

∴ 4 =  2^{2}

∴  (4)^{n+2} =  (2^{2})^{n+2}

- By using the second rule above multiply 2 and (n + 2)

∵ 2(n + 2) = 2n + 4

∴  (4)^{n+2} =  (2)^{2n+4}  

B.

∵ 4 = 2 × 2

∴ 4 =  2²

∴  4(2)^{n+1} = 2² ×  (2)^{n+1}

- By using the first rule rule add the exponents of 2

∵ 2 + n + 1 = n + 3

∴   4(2)^{n+1} =  (2)^{n+3}

C.

∵ 8 = 2 × 2 × 2

∴ 8 =  2³

∴  8(2)^{n} = 2³ ×  (2)^{n}

- By using the first rule rule add the exponents of 2

∵ 3 + n = n + 3

∴  8(2)^{n} =  (2)^{n+3}

D.

∵ 16 = 2 × 2 × 2 × 2

∴ 16 = 2^{4}

∴  16(2)^{n} = 2^{4}  ×  (2)^{n}

- By using the first rule rule add the exponents of 2

∵ 4 + n = n + 4

∴  16(2)^{n} =  (2)^{n+4}

E.

(2)^{2n+3} is in its simplest form

The expressions which equivalent to  (2)^{n+3} are:

4(2)^{n+1}  ⇒ B

8(2)^{n} ⇒ C

3 0
3 years ago
Which ordered pairs make both inequalities true? Check all that apply.
Margaret [11]
When an <span>inequality is true it is in the region that both are shaded, so the answer would be 1,1 and 2,2</span>
6 0
3 years ago
Read 2 more answers
Question below..................
morpeh [17]
............ ........... .

7 0
2 years ago
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