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3 years ago

Practice Problems

Mathematics

1 answer:

katen-ka-za [31]3 years ago

6 0

15 red marbles
12 green marbles
15+12 = 27 marbles in total

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Follow the directions to convert the analog sound wave into a digital signal. The lines on the grid intersect at various points

Blababa [14]

I like to be ____ like a ____ 3+ 600 = 306:)

6 0

3 years ago

Which polynomial, when added to the polynomial 5x^2–3x–9, is equivalent to x^2–5x+6?

Anna71 [15]

Answer:

$-4\cdot{x^2}-2\cdot{x}+15$

Step-by-step explanation:

We can look at the terms one by one. We know that to get 5 to 1 we must add -4 so the first term is:

$-4\cdot{x^2}$

For the x term to go from -3 to -5 we must add -2, so the second term is

$-2\cdot{x}$

Lastly, to go from -9 to 6 we must add 15. The final polynomial added is:

$-4\cdot{x^2}-2\cdot{x}+15$

4 0

3 years ago

What is the determinant of A = [ -2 2 -5 4 -1 -2 1 3 -5]

stepan [7]

Answer:

-51

Step-by-step explanation:

$\begin{vmatrix}-2&2&-5\\4&-1&-2\\1&3&-5\end{vmatrix}=\\=\mathsf{-10-4-60-5+40-12}=\\=\mathsf{-91+40}=\\=\mathsf{-51}$

5 0

3 years ago

Read 2 more answers

Multiple. Express your answer in simplest form. 1 7/8 multiple by 2 1/3

Rudik [331]

The multiplication of frcations in simplest form is 4 3/8

Step-by-step explanation:

We convert the given fractions into simple forms and then multiply them.

Given fractions are:

$1\frac{7}{8} = \frac{15}{8}\\2\frac{1}{3} = \frac{7}{3}$

Multiplying both fractions

$\frac{15}{8} * \frac{7}{3}\\=\frac{15*7}{8*3}\\=\frac{5*7}{8}\\=\frac{35}{8}\\=4\frac{3}{8}$

The multiplication of frcations in simplest form is 4 3/8

Keywords: Fractions, Multiplication

Learn more about fractions at:

#LearnwithBrainly

8 0

4 years ago

Will Make Brainiest if you awnser.

lidiya [134]

Answer:

Find the lowest common denominator of the 2 denominators

Step-by-step explanation:

The common in both denominator is 15.

3: 3,6,9,12,15,18,21,24,27,30

5: 5,10,15,20,25.30,35,40,43,50

Since 5x3 is 15, 1/5 x 3/3= 3/15

Since 3x5 is 15, 2/3 x 5/5= 10/15

3/15 is equivalent to 1/5 and 10/15 is equivalent to 2/3.

3/15 + 10/15 is equal to 13/15

13/15 can't be simplified because they are both odd numbers and they have less than 2 factors.

Hope this helped! Have a nice day! :D Step-by-step explanation:

3 0

4 years ago