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Oksanka [162]
2 years ago
12

Calcula el valor de la expresion m + (m – 3), si m = –5

Mathematics
2 answers:
harkovskaia [24]2 years ago
7 0

Answer: -13

Step-by-step explanation:

m = -5

-5 + (-5-3)

-5 -8

-13

ehidna [41]2 years ago
5 0

Answer:

-13

Step-by-step explanation:

dado m= -5

m+(m-3) = -5+(-5-3) = -5 + (-8) = -5-8 = -13

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A camper wants to know the width of a river. From point A, he walks downstream 60 feet to point B and sights a canoe across the
Anarel [89]
<h2>Hello!</h2>

The answer is:

The correct option is:

D. 40 feet.

<h2>Why?</h2>

To solve the problem and calculate the width of the river, we need to assume that the distance from A to B and the angle formed between that distance and the distance from A to the other point (C) is equal to 90°, meaning that we are working with a right triangle, also, we need to use the given angle which is equal to 34°. So, to solve the problem we can use the following trigonometric relation:

Tan\alpha =\frac{Opposite}{Adjacent}

Where,

alpha is the given angle, 34°

Adjacent is the distance from A to B, which is equal to 60 feet.

Opposite is the distance from A to C which is also equal to the width of the river.

So, substituting and calculating we have:

Tan(34\°) =\frac{Width}{60ft}

Width=60ft*Tan(34\°)=60ft*0.67=40.2ft=40ft

Hence, we have that the correct option is:

D. 40 feet.

Have a nice day!

6 0
3 years ago
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When given the picture using what you know find the answer. What is m
bazaltina [42]

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Step-by-step explanation:

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3 years ago
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One number is six less than two times another. If their sum is increased by two, the result is fourteen. Find the numbers.
7nadin3 [17]

Answer:

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Step-by-step explanation:

2x-6+2=14

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5 0
3 years ago
A pedestal for a statue is made with 405 cubic feet of concrete. a rectangular prism with a height of 9 feet. what is the area o
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45 square feet is the area of the base of the pedestal.

what is rectangular prism?

  • A rectangular prism is a 3D figure with 6 rectangular faces.
  • To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units.

we know that

The volume of the pedestal (rectangular prism) is given by the formula

   V =   B × h

where

B is the area of the rectangular base of pedestal

V = 405 ft³

h = 9 ft

put the given values in the formula and solve for B

405 = B × 9

B = 405/9

B = 45 ft²

Therefore, 45 square feet is the area of the base of the pedestal.

Learn more about rectangular prism

brainly.com/question/21308574

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3 0
2 years ago
9. Eight friends went to a hockey game. The
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Answer:

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