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Ilya [14]
3 years ago
14

Help please asap!!! Thx

Mathematics
1 answer:
Lostsunrise [7]3 years ago
8 0

Answer:

Step-by-step explanation:

<u><em># 21.</em></u>

\frac{8}{15} ÷ ( - 0.35 ) = - \frac{8}{15} ÷ \frac{35}{100} = - \frac{8}{15} ÷ \frac{7}{20} = - \frac{8}{15} × \frac{20}{7} = - \frac{32}{21} <em>(B).</em>

<u><em># 22.</em></u>

( 3\frac{1}{2} - 9\frac{3}{4} ) ÷ ( - 2.5 )

3\frac{1}{2} = 3\frac{5}{10} = 3.5

9\frac{3}{4} = 9\frac{3*25}{4*25} = 9\frac{75}{100} = 9.75

( 3.5 - 9.75 ) ÷ ( - 2.5 ) = ( - 6.25 ) ÷ ( - 2.5 ) = 2.5 <em>(D).</em>

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Ida is cutting a 11/12 foot wooden board into 3/16 foot sections to do some detail work on a model she is building. How many who
zlopas [31]
You have to give them the same denominator so multiply 11/12 by 4 and 3/16 by 3. giving you 44/48 and 9/48. then divied 44 by 9 giving you 4.8888
there for there are 4 whole 3/16 sections of the 11/12 board
3 0
3 years ago
Read 2 more answers
Express the product of 2xsquared+6x-8 and x+3 in standard form
postnew [5]

Answer:

2x^3+12x^2+10x-24

Step-by-step explanation:

(2x^2+6x-8)(x+3)

2x^3+6x^2-8x+6x^2+18x-24

2x^3+6x^2+6x^2-8x+18x-24

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4 0
3 years ago
Classify the following into monomials, binomial and trinomials.
Degger [83]
  • A monomial is an expression containing a single term.
  • A binomial is an expression having two terms.
  • A trinomial is an expression having three terms.

  1. Here -6 is a monomial having a single term -6.
  2. -5 + x is a binomial containing two terms -5 and x.
  3. 32x - y is a binomial having two terms 32x and -y.
  4. 6x² + 5x - 3 is a trinomial having three terms 6x², 5x and -3.
  5. z² +2 is a binomial having two terms z² and 2.

<u>Answers</u>

  1. <u>monomial</u>
  2. <u>binomial</u>
  3. <u>binomial</u>
  4. <u>trinomial</u>
  5. <u>binomial</u>

Hope you could understand.

If you have any query, feel free to ask.

5 0
2 years ago
.31 is what in a fraction
GREYUIT [131]
0.31 = 31%
% is out of 100 so 31% is 31 out of 100 which is 31/100 :)
3 0
3 years ago
Read 2 more answers
Answer choices
Anettt [7]
The answer is D because is you add a one under the 9 you get 9/1 x 2/3 and you can just multiply straight away and get 18/3 but if you need to simplify more you get 6
5 0
2 years ago
Read 2 more answers
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