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Stels [109]
2 years ago
11

I WILL MARK BRAINLIEST

Mathematics
1 answer:
Leona [35]2 years ago
5 0

Answer: B

Step-by-step explanation:

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there are 3 alligators, 16 turtles, and 12 snakes in the reptile exhibit at the zoo. what is the ratio
baherus [9]

Answer: 3:31= alligators to total animals. 16:31= turtles total animals. 12:31= snakes to total animals.

Step-by-step explanation:

3+16+12=31 the total

6 0
3 years ago
Find the area of triangle ABC with vertices A(2,1), B (12,2), C (12,8). Hence, or otherwise find the perpendicular distance from
Lapatulllka [165]
<h2>The area of a triangle is =54 square units</h2><h2>The perpendicular distance from B to AC is = \frac{108}{\sqrt{149} } units</h2>

Step-by-step explanation:

Given a triangle ABC with vertices A(2,1),B(12,2) and C(12,8)

x_1=2,y_1=1,x_2=12,y_2=2,x_3=12 and      y_3=8

The area of a triangle is= \frac{1}{2} [x_1(y_2-y_3) +x_2 (y_3- y_1)+x_3(y_1-y_2)]

=|\frac{1}{2} [2(2-8+12(8-1)+12(1-2)]|

=|-54| = 54 square units

The length of AC = \sqrt{(x_1-x_3)^{2} +(y_1-y_3)^2}

                          = \sqrt{(2-12)^{2} +(1-8)^2}

                         =\sqrt{149} units

Let the perpendicular distance from B to AC be = x

According To Problem

\frac{1}{2} \times  x \times \sqrt{149} = 54

⇔x =\frac{108}{\sqrt{149} } units

Therefore the perpendicular distance from B to AC is = \frac{108}{\sqrt{149} } units

5 0
3 years ago
Which pair of functions are inverse of each other ?
vazorg [7]

Answer:

\sf B. \: f(x) = 5x - 9 \: and \; g(x)=\cfrac{x+9}{5}

Step-by-step explanation:

f(x) = 5x - 9  and g(x) = x+9/5 are inverses of each other.

<u>________________</u>

4 0
2 years ago
PLEASE HELP ASAP HURRY
bulgar [2K]

Answer: The amount she pays for admission

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Please helppp!! Find the missing side . Round to the nearest tenth
olga nikolaevna [1]

Answer:

7.  7.8

Step-by-step explanation:

We can use Tan of this angle to find the missing side (in this case, the side adjacent to the angle measuring 57°)

 Tan A = (opposite side)/(adjacent side)

    Tan 57° = 12/x

solve for x

           x(Tan 57°) = 12

               x = 12/(Tan 57°)

                 x = 7.8   (rounded to the nearest tenth)

6 0
3 years ago
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