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Eddi Din [679]
3 years ago
6

Four times a number increased by 3 is -89

Mathematics
2 answers:
Likurg_2 [28]3 years ago
5 0

Answer:

-21.5

Step-by-step explanation:

so we will go backwards -89 + 3 = -86

-86/4 = -21.5

Hope this helps!

sp2606 [1]3 years ago
4 0

Answer:

-21.5

Step-by-step explanation:

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A student stands 20 m away from the foot
Ostrovityanka [42]

Answer:

Height of tree is \approx <em>15 m.</em>

<em></em>

Step-by-step explanation:

Given that student is 20 m away from the foot of tree.

and table is 1.5 m above the ground.

The angle of elevation is: 34°28'

Please refer to the attached image. The given situation can be mapped to a right angled triangle as shown in the image.

AB = CP = 20 m

CA = PB = 1.5 m

\angle C = 34°28' = 34.46°

To find TB = ?

we can use trigonometric function tangent to find TP in right angled \triangle TPC

tan \theta = \dfrac{Perpendicular}{Base}\\tan C= \dfrac{PT}{PC}\\\Rightarrow tan 34.46^\circ = \dfrac{PT}{20}\\\Rightarrow PT = 20 \times 0.686 \\\Rightarrow PT = 13.72\ m

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Now, height of tree TB = TP + PB

TB = 13.72 + 1.5 = 15.22 \approx <em>15 m</em>

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3 years ago
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const2013 [10]

Answer:

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3 0
3 years ago
Who is King John history​
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never [62]

9514 1404 393

Answer:

  x = 8

Step-by-step explanation:

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Geometric mean. Find x, y, and z. Show work please.
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Answer:

Step-by-step explanation:

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225

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3 years ago
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