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Fantom [35]
3 years ago
11

B-10 > 5; 14, 15, 16

Mathematics
1 answer:
torisob [31]3 years ago
3 0
B = 16
explanation:
b-10 > 5
16-10 > 5
6 > 5
The other answer choices are less than or equal to 5
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11. Rocco and Biff are two koalas sitting at the
bagirrra123 [75]

Answer:

Biff's tree is 14 m off the ground and Rocco's tree is 7 m off the ground.

Step-by-step explanation:

Let the height of Biff's tree be represented by x, so that the height of Rocco's tree is \frac{x}{2}.

Draw a straight line from Rocco's point of view to a point t to the middle of Biff's tree. This line divides x into two equal parts, and the angle is divided into 35^{0} each.

By alternate angle property,

Tan  35^{0} = \frac{\frac{x}{2} }{10}

\frac{x}{2} = Tan  35^{0} × 10

  = 7.00021

⇒       x = 2 × 7.0021

            = 14. 0042

         x = 14

Therefore, Biff's tree is 14 m off the ground and Rocco's tree is 7 m off the ground.

5 0
3 years ago
Read 2 more answers
Please help! Dylan decides to take his friends to a movie. He wants to spend no more than $50. He must take one adult with him.
Yuki888 [10]

Answer:6

Step-by-step explanation:40.25  50 - 9.75 = 40.25

6 0
3 years ago
Using a protractor and a ruler, accurately construct a triangle ABC where AB = AC = 8 cm and CAB = 90°. Measure the length of BC
Marina86 [1]
<h2>Answer:</h2>

BC ≅ 11cm

<h2>Step-by-step explanation:</h2>

To accomplish this task, follow these steps:

i. Using your ruler, draw a line AB with length 8cm as shown in Figure 1. This will give AB = 8cm

ii. Remove the ruler and place your protractor at the point A and parallel to line AB as shown in Figure 2. Make a dot at the mark 90° of the protractor (See Figure 2). For accuracy, ensure that the 180° mark of the protractor is on the line AB.

iii. From point A through the dot in (ii) above, use a ruler to draw a line AC of length 8cm as shown in Figure 3. This will give AC = 8cm and will also give angle CAB = 90°

iv. Now join points C and B by drawing a line from point A to C using a ruler as shown in Figure 4.

v. Lastly, measure the length of BC by placing your ruler on line BC as shown in Figure 5. This should give a value of about 11cm.

Therefore the length of BC = 11cm approximately.

<em>NB: All figures are attached to this response. </em>

7 0
3 years ago
Limit of x^2-81/x+9<br> As x goes toward -9
Semmy [17]
Hello,

Use the factoration

a^2 - b^2 = (a - b)(a + b)

Then,

x^2 - 81 = x^2 - 9^2

x^2 - 9^2 = ( x - 9).(x + 9)

Then,

Lim (x^2- 81) /(x+9)

= Lim (x -9)(x+9)/(x+9)

Simplity x + 9

Lim (x -9)

Now replace x = -9

Lim ( -9 -9)

Lim -18 = -18
_______________

The second method without using factorization would be to calculate the limit by the hospital rule.

Lim f(x)/g(x) = lim f(x)'/g(x)'

Where,

f(x)' and g(x)' are the derivates.

Let f(x) = x^2 -81

f(x)' = 2x + 0
f(x)' = 2x

Let g(x) = x +9

g(x)' = 1 + 0
g(x)' = 1

Then the Lim stay:

Lim (x^2 -81)/(x+9) = Lim 2x /1

Now replace x = -9

Lim 2×-9 = Lim -18

= -18




7 0
3 years ago
How do you rewrite the fraction <br>11/12
navik [9.2K]
You can’t simplify that fraction.
5 0
3 years ago
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