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marta [7]
3 years ago
12

Seven subtracted from eleven times a number is -238.

Mathematics
2 answers:
solmaris [256]3 years ago
6 0

Answer: Make the number x11 times the number : 11xseven subtracted from the number : 11x - 7 The answer is -238: 11x - 7 = -238 11x = -231 x = 21

11x + 238

Step-by-step explanation:

Brilliant_brown [7]3 years ago
5 0
Let the number be x

11 times the number : 11x

seven subtracted from the number : 11x - 7

Answer is -238:
11x - 7 = -238
11x = -231
x = 21
11x + 238 
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5. Patricia is on the edge of the top of a mountain and notices that a kayak on the lake is 30 meters
zhuklara [117]

The distance from the kayak to the mountain to the nearest whole number is 43 meters.

The situation will form a right angle triangle as shown below in the diagram.

<h3>Properties of a right angle triangle:</h3>
  • One of its angle is 90 degrees.
  • The sides and angle can be found by using trigonometric ratios.

The height(opposite side) of the triangle is the kayak distance from the mountain to the lake below. The distance from the kayak to the mountain is the adjacent side of the triangle.

Therefore, using trigonometric ratios,

tan 35 = opposite / adjacent

tan 35° = 30 / a

a = 30 / tan 35°

a = 30 / 0.70020753821

a = 42.8444402023

a = 42.84 meters

a ≈ 43 meters

learn more on the angle of depression: brainly.com/question/13969247?referrer=searchResults

8 0
3 years ago
The sum of the first three terms of a sequence is 6 and the fourth term is 16
Sati [7]

Answer:

              a₁ = -5, d = 7,  a₂ = 2, a₃ = 9, a₄ = 16

equation of sequence:    \boxed{\bold{a_n=7n-12}}

Step-by-step explanation:

a₁ + a₂ + a₃ = 6    

a₁ + a₁ + d + a₁ + 2d = 6

3a₁ + 3d = 6

a₁ + d= 2     ⇒ a₁ = 2 - d

a₄ = 16

a₁ + 3d = 16

2 - r + 3d = 16

2d = 14

d = 7

a₁ = 2-7 = -5

a₁ = -5, d = 7   ⇒  a₂ = -5+7 = 2, a₃ = 2+7 = 9, a₄ = 9+7 = 16

equation of arithmetic sequence:

a_n=a_1+d(n-1)\\\\a_n=-5+7(n-1)\\\\\underline{a_n=7n-12}

6 0
3 years ago
Is the following relation a function? {(0.3, 0.6), (0.4, 0.8), (0.3, 0.7), (0.5, 0.5)}
Readme [11.4K]

Answer:

no

Step-by-step explanation:

To be a function, the x values must correspond to one and only one y value.

In the coordinates given, (0.3, 0.6) and (0.3, 0.7) have the same x- value.

That means that they cannot be a function.

7 0
3 years ago
Solve V- E = 2 for E; E =<br> A.) V - 2 <br> B.) V + 2 <br> C.) - V - 2 <br> D.) - V + 2
zhuklara [117]
Add v to both sides: -E=2+V
Divide both sides by -1: E= -2-V

Answer: -V-2
3 0
3 years ago
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Elza [17]

Answer:

21.80

Step-by-step explanation:

3 0
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