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zhannawk [14.2K]
3 years ago
9

A triangle on the coordinate plane has vertices (-8,3), (3,9) and (9,3). What is the area, in square units, of the

Mathematics
1 answer:
Schach [20]3 years ago
3 0

Answer: 51 sq units

Step-by-step explanation:

after plotting the vertices, the height of the triangle is 6 and the base is 17

A = 1/2(6)(17)

A = 51 sq units

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One lap around the school track is 5/8 of a mile Carin ran 3 1/2 laps how far did she run
bearhunter [10]

Given length of a lap = 5/8 mile.

Number of laps Carin ran = 3 1/2 laps.

3 1/2 can be read as 3 and a half. In improper fractions, it can be written as

(3*2+1)/2 = 7/2 laps.

In order to find the total distance covered in 3 1/2 or 7/2 laps, we need to multiply length of a lap by total number of laps ran.

Therefore, total distance covered = 7/2 × 5/8.

=\frac{7}{2}\times\frac{5}{8}

Multiplying across, we get

= \frac{7\times5}{2\times8}

=\frac{35}{16}

Let us convert 35/16 into mixed fractions.

On dividing 35 by 16, we get 2 quotient and 3 remainder.

So, the mixed fraction would be 2 3/16.

Therefore, she ran 2 3/16 miles in 3 1/2 laps.


4 0
3 years ago
2. If it takes JoAnna 5 seconds to run from the batters box to first base at an average
Anika [276]

Answer:

30 meters

Step-by-step explanation:

If she ran for 5 seconds, 6 meters per second. All you do is 5x6 and you get 30

7 0
4 years ago
A company makes a profit of $1.38 million. This is $2.54 million more than last year. Write and solve an equation to find the pr
Lelechka [254]

Answer:

Loss of $1.16 millions.

Step-by-step explanation:

It is given that the profit made by company is $1.38 million

It is $2.54 million higher than the last year.

The last year profit which is represented by (p) can be calculated as:

p = Current year profit - 2.54

p= 1.38 - 2.54

p = -1.16

This mean last year there was a loss of $1.16 millions last year in company.

5 0
3 years ago
2800 to 2100 percent of change
Gennadij [26K]
2800-2100=700
2800/700=4
4% decrease
7 0
4 years ago
Which expression represents the height of the triangular base of the pyramid?
coldgirl [10]
The angle in the triangle = 60 degrees 

so  tan 60  = h / (1/2) s =  2h /s
sqrt3 = 2h / s

h =   sqrt3 s / 2


B is the correct choice
8 0
3 years ago
Read 2 more answers
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