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3 years ago

Similfy 1/2 (30x + 4y - 14 ) +1/4 (16x - 28y + 4)

Mathematics

1 answer:

Hoochie [10]3 years ago

6 0

Answer:

19x - 5y - 6

Hope this helped

Step-by-step explanation:

You start by simplifying each expression, you will be distributing the number outside the parentheses on each number inside the parentheses

1/2(30x+4y-14)

1/4(16x -28 +4)

leaving you with

15x + 2y - 7 + 4x - 7y + 1

combine the x's y's and the singular numbers

19x - 5y - 6

Brainliest?

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70% of a school budget is spent on teachers, 10% on other staff, and the rest on energy and resources. A Write the ratio of the

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A) 70:10:20 = 7:1:2
b) 20/100 = 2/10 = 1/5

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3 years ago

Which best describes the graphs of the line that passes through (−12, 15) and (4, −5), and the line that passes through (−8, −9)

konstantin123 [22]

Answer:

C) They are perpendicular lines.

Step-by-step explanation:

We first need to find the slope of the graph of the lines passing through these points using:

$m = \frac{y_2-y_1}{x_2-x_1}$

The slope of the line that passes through (−12, 15) and (4, −5) is

$m_{1} = \frac{ - 5 - 15}{4 - - 12}$

$m_{1} = \frac{ - 20}{16} = - \frac{5}{4}$

The slope of the line going through (−8, −9) and (16, 21) is

$m_{2} = \frac{21 - - 9}{16 - - 8}$

$m_{2} = \frac{21 + 9}{16 + 8}$

$m_{2} = \frac{30}{24} = \frac{5}{4}$

The product of the two slopes is

$m_{1} \times m_{2} = - \frac{4}{5} \times \frac{5}{4} = - 1$

Since

$m_{1} \times m_{2} = - 1$

the two lines are perpendicular.

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3 years ago

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Which number is greater tha 9/4

Naddika [18.5K]

Answer:

Step-by-step explanation:

the biggest number gets eaten by the alligator

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3 years ago

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EastWind [94]

Answer:

24 units squared

Step-by-step explanation:

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antoniya [11.8K]

Answer:

= 52sqrt3

Step-by-step explanation:

Area of a trapezium is given by the formula;

1/2(a+b)h

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a = 15 ft, b= 11 ft and h = 4√3

Therefore;

Area = 1/2 (15+11) 4√3

= 1/2 × 26 × 4√3

= 52√3 ft²

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3 years ago

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