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3 years ago

Please help, easy geometry

Mathematics

1 answer:

Natasha_Volkova [10]3 years ago

5 0

Answer:

28 square units

Step-by-step explanation:

The formula usually used for the area of a triangle is ...

A = (1/2)bh

where b is the base length and h is the height.

Since the bottom two points lie on the horizontal line y=1, it is convenient to choose the line segment between them as the base. That segment has a length that extends from x=-3 to x=4, so it is 7 units long.

The height is the perpendicular distance from the third point (1, 9) to the base (line y=1). The distance in the x direction is the distance from y=1 to y=9, a distance of 8 units.

Putting these numbers for base length and height into the area formula, we get

A = (1/2)(7 units)(8 units) = 28 square units

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Answer:

Step-by-step explanation:

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3 years ago

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ra1l [238]

Answer:

Step-by-step explanation:

7x+18−6(x+1)−12

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3 years ago

In the diagram below of triangle HJKHJK, LL is a midpoint of \overline{HJ}HJ and MM is a midpoint of \overline{JK}JK. If LM=71-9

love history [14]

Answer:

Step-by-step explanation:

Since J is the midpoint of HK, then HJ=JK and 3x+5=9x-3 solve for x

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3 0

3 years ago

7. There are 19 red marbles for every black marble. If there are 120 marbles in the bag, how many red marbles are there? Explain

boyakko [2]

Answer:

114 marbles.

Step-by-step explanation:

Let the number of red marbles be r

Let the number of black marbles be b

Given the following data;

Total number of marbles = 120

Translating the word problem into an algebraic equation, we have;

$r = 19b$ .......equation 1

$r + b = 120$ ........equation 2

Substituting the value of "r" into equation 2, we have;

$19b + b = 120$

$20b = 120$

$b = \frac {120}{20}$

b = 6 marbles.

To find the number of red marbles;

From equation 1;

$r = 19b$

Substituting the value of "b" into equation 1, we have;

$r = 19*6$

r = 114 marbles.

Therefore, there are 114 red marbles in the bag.

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3 years ago

Shannon wants to calculate her property tax. The market value of the property is $85,000. The assessment rate is 41%. The proper

Ronch [10]

Given:
Market VAlue = 85,000
Assessed value = 41%
property tax rate is 46.30 per 1,000 of assessed value.

85,000 * 41% = 34,850
34,850 / 1000 = 34.85
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The property tax to be paid is $1,614.56

6 0

3 years ago

Please help, easy geometry​

Please help, easy geometry