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3 years ago

Which goes in which order

Mathematics

2 answers:

velikii [3]3 years ago

8 0

4 x (3+6) = 12 + 24 ---->Distributive

3 + ( 8 + 2) = 3 + (2 + 8) ---> Commutative

6 x (7 x 3 ) = (6 x 7 ) x 3 --->Associative

Elena-2011 [213]3 years ago

8 0

Commutative

6 + 7 = 7 + 6

12 * 8 = 8 * 12

Associative

(2 + 3) + 6 = 3 + (2 + 6)

(3 + 8) + 2 = 3 + (2 + 8

6 * (7 * 3) = (6 * 7) * 3

Distributive

4 * (3 + 6) = 12 + 24

because:

a * (b + c) = (a * b) + (a * c)

4 * (3 + 6) = (4 * 3) + (4 * 6)

4 * 9 = 12 + 24

36 = 36

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Each equation represents a linear relationship. Examine each and determine the slope and y- intercept

marysya [2.9K]

Answer:

Slope is -3/7. Y intercept is 250/7.

Step-by-step explanation:

Since they asking for the slope and y intercept, let put it in slope intercept form.

$y = mx + b$

where m is the slope and b is the y intercept.

The equation given is in standard form so we will convert it to slope intercept.

$3x + 7y = 250$

$7y = 250 - 3x$

$y = \frac{250}{7} - \frac{3}{7} x$

$y = - \frac{3}{7} x + \frac{250}{7}$

The slope is -3/7

The y intercept is 250/7

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2 years ago

Which statement is true about the equations –3x + 4y = 12 and 1/4x –1/3 y = 1?The system of the equations has exactly one soluti

iren [92.7K]

Answer:

The system of the equations has no solution; the two lines are parallel.

Step-by-step explanation:

The equations have the same slope. In standard form, this can be seen as the same coefficients for x and y. We will multiply the second equation by -12 to reveal this.

$\frac{1}{4} x-\frac{1}{3}y=1 \\-12(\frac{1}{4} x-\frac{1}{3}y=1)\\\frac{-12}{4} x-\frac{-12}{3}y=-12\\-3x+4y=-12$

This means the equations are parallel and will never cross. There is no solution.

4 0

3 years ago

Kylie leans a 30-foot ladder against a wall so that it forms an angle of 74^{\circ}

MissTica

Answer:

8.27 ft.

Step-by-step explanation:

Using trigonometry of a right angled triangle:

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x = 30 cos 74

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2 years ago

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Nadusha1986 [10]

Answer:

The answer is √10,−√10 (award brainliest)

Step-by-step explanation:

Take the root of both sides and solve.

Exact Form: x = √10,−√10

Decimal Form: x = 3.16227766...,−3.16227766...

for more detailed explanation comment down below this post and ask

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3 years ago

Solve the problem.

Lorico [155]

Answer:

Step-by-step explanation:

You must use a combination:

$_nC_k=\dfrac{n!}{k!(n-k)!}$

We have <em>n = 16</em>, <em>k = 3</em>.

Substitute:

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5 0

3 years ago