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3 years ago

Simplify the following expression. 6 - (-19)

Mathematics

1 answer:

NISA [10]3 years ago

3 0

Answer:

The answer is 25 but I'm not sure you can simplify a whole number

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you and four of your nine classmates received an A on your math test, what is the simplest fraction of students that scored an A

svetlana [45]

4/9 or four/ninths. it cant simplify.

7 0

3 years ago

Read 2 more answers

Find the equation of the line that cuts through (0,5) and (1,2)?

MArishka [77]

The equation of the line that cuts through (0,5) and (1,2) is y = -3x + 5

<h3>Solution:</h3>

Given that we have to find equation of the line that cuts through (0,5) and (1,2)

The equation of line passing through points $(x_1, y_1)$ and $(x_2, y_2)$ is given as:

$y - y_1 = m(x - x_1)$

Where "m" is the slope of line

Let us first find slope of line

The slope of line is given as:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$\text{ Substituting } (x_1, y_1) = (0, 5) \text{ and } (x_2, y_2) = (1, 2)$

$m=\frac{2-5}{1-0}=-3$

Thus the required equation of line is:

$y - 5 = -3(x - 0)\\\\y - 5 = -3x\\\\y = -3x + 5$

Thus the equation of line is found

3 0

3 years ago

Find the sum of 5 m + 3 n + p , -5 p + 3 n , and 2 n - m .

tatyana61 [14]

Equal to 3n+p
i think thats it

8 0

3 years ago

Review the work showing the first few steps in writing a partial fraction decomposition.

Amanda [17]

Answer:

$A = 2$

$B = -1$

$C = -9$

Step-by-step explanation:

Given

$2x\² + 15x + 19 = Ax\² + 8Ax + 16A + Bx + 4B + C$

Required

Find A, B and C

Rearrange the expression

$2x\² + 15x + 19 = Ax\² + 8Ax + 16A + Bx + 4B + C$

$2x\² + 15x + 19 = Ax\² + 8Ax + Bx + 16A + 4B + C$

To do this, we simply compare the expressions on both sides of the equation.

So, we have:

$Ax\² = 2x\²$ --- (1)

$8Ax + Bx = 15x$ --- (2)

$16A + 4B + C = 19$ --- (3)

Divide both sides by x² in (1)

$Ax\² = 2x\²$

$A = 2$

Divide both sides by x in (2)

$8Ax + Bx = 15x$

$8A + B = 15$

Substitute 2 for A.

$8*2 + B = 15$

$16+ B = 15$

Make B the subject

$B = 15 - 16$

$B = -1$

Substitute 2 for A and -1 for B in (3)

$16A + 4B + C = 19$

$16*2 + 4*-1 + C = 19$

$32 - 4 + C = 19$

$28 + C = 19$

Make C the subject

$C = 19 - 28$

$C = -9$

6 0

3 years ago

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Natasha spent 1/4 of the day cleaning the kitchen. She spent 1/3 of that time washing dishes. What fraction of the day did Natas

serg [7]

4/12 because the LCD is 12 and what you do the denominator you have to do to the top so in order yo get 12 you have to multiply 3x4 so you multiply 1x4 to get 4/12
For cleaning the kitchen 4x3 is 12 so the top is 1x3 which is 3/12

6 0

3 years ago