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olya-2409 [2.1K]
2 years ago
7

Plz give step by step explanation

Mathematics
1 answer:
Fofino [41]2 years ago
6 0
The answer is d because when you put the numbers into the equation you get 2 3(1)+(-1) you get 2
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Step-by-step explanation:

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2 years ago
Simplify <br> 14z+12y3+10y3+7y3
Alona [7]

Answer:

14z+29y^3

Step-by-step explanation:

14z+12y^3+10y^3+7y^3

Combine like terms

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3 years ago
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What’s the length of BD ?
Rina8888 [55]

Answer:

BD = 4.99

Step-by-step explanation:

You can simply use the trigonometric identity tangent to solve for length BD.

Tan = opposite/adjacent

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3 years ago
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Flock of birds is flying south, toward the equator, at an hourly rate. A scientist created the function f(x)=−60x+1320 to repres
lina2011 [118]

Answer: First and last option

The birds began 1320 miles from the equator.

The birds are flying toward the equator at a rate of 60 mph.

Step-by-step explanation:

Note that the function f(x) is a linear function.

f (x) = - 60x + 1320

If x represents the number of hours and f(x) represents the distance from the equator, then x = 0 means that the first hour has not yet elapsed.

When x = 0 then:

f (0) = -60 * 0 +1320\\f (0) = 1320.

This means that the initial distance at which the birds of the equator are located is 1320 miles.

Then when x = 1 then:

f (x) = -60 * 1 + 1320\\f (x) = -60 +1320

When x = 2 then:

f (x) = -60 * 2 + 1320\\f (x) = -120 +1320

As x increases by one unit then the distance of the birds to the equator decreases by 60 miles. This means that birds travel at a speed of 60 miles per hour

4 0
3 years ago
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Tomtit [17]
To make 90 tortillas, he needs to make 6 batches. 6*15=90
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2 years ago
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