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2 years ago

O is the centre of the circle and ABC and EDC are tangents to the circle

Mathematics

1 answer:

nataly862011 [7]2 years ago

7 0

Answer:

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Can someone tell me what x equals

Troyanec [42]

X=22. The supplementary angle is 90°, so the 66° angle, plus (x+2) has to add up to 90° too.

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2 years ago

Allan keeps tropical fish his aquarium is 4 feet long ,1 foot wideand 2 feet tall each fish needs atleast 0.5ft 3 of water what

Alik [6]

Answer: There are 16 fish that he can keep in the aquarium.

Step-by-step explanation:

Since we have given that

Length of aquarium = 4 feet

Width of aquarium = 1 foot

So, it forms a shape of cuboid.

As we know the formula for "Volume of Cuboid":

$Volume=Length\times Breadth\times Height\\\\Volume=4\times 1\times 2\\\\Volume=8\ ft^3$

According to question, Each fish needs atleast 0.5 cubic feet of water.

So, Number of fish that he can keep in the aquarium is given by

$\frac{8}{0.5}=16$

Hence, there are 16 fish that he can keep in the aquarium.

6 0

2 years ago

24 - (6)(-3) equals to what

padilas [110]

Answer:

Step-by-step explanation:

6*(-3) = (-18)

24-(-18) = 42

4 0

2 years ago

Read 2 more answers

A timer is started and a few moments later a model airplane is launched from the ground. Its height (in feet) as a function of t

WITCHER [35]

The airplane reaches its maximum height of 81 feet in 12 seconds.

<h3>Behavior of curves</h3>

If y = $x^{2}$ , it means that the second derivate is 2 which is positive, then there is a minimum turning point.

If y = - $x^{2}$ , it means that the second derivative will be -2 which is negative, then there is a maximum turning point.

Analysis:

h(t) = - $(t - 12)^{2}$ + 81

By expanding,

h(t) = -( $t^{2}$ - 24t + 144) +81

h(t) = - $t^{2}$ + 24t - 144 + 81

h(t) = - $t^{2}$ + 24t - 63

at turning point d/dt(h(t)) = 0

d/dt (h(t)) = -2t +24

-2t +24 = 0

if we differentiate again, second derivative is -2 which is negative, so it is a maximum point.

2t = 24

t = 12 seconds

h(t) at t = 12

h(t) = $-(12)^{2}$ + 24(12) - 63 = 81 feet

In conclusion, the maximum height of the airplane after 12 seconds is 81 feet.

Learn more about minimum and maximum points: brainly.com/question/14993153

#SPJ1

7 0

1 year ago

What is the slope from the coordinate points (2,6) (1,9)

Hunter-Best [27]

Answer:

$m=-3$

General Formulas and Concepts:

Pre-Alg

Order of Operations: BPEMDAS

Alg I

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

Step-by-step explanation:

Step 1: Define

Point (2, 6)

Point (1, 9)

Step 2: Find slope m

Substitute: $m=\frac{9-6}{1-2}$
Subtract: $m=\frac{3}{-1}$
Divide: $m=-3$

8 0

2 years ago

Read 2 more answers