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Digiron [165]
2 years ago
13

A scientist wants to estimate the number of roads living near a lake.

Mathematics
1 answer:
QveST [7]2 years ago
7 0
90 + 50 = 140
140 - 7 = 133
130 - 140
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Please help, what is the slope?
NikAS [45]

Answer:

0

Step-by-step explanation:

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3 years ago
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Hot dogs at a carnival cost 2.99 each plus 7%tax.what is the total cost for one hot dog?
Mars2501 [29]
$3.20
2.99 • 7% = 0.2093
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2 years ago
Which axiom is used to prove that the product of two rational numbers is rational
aliina [53]

Answer:

First, a rational number is defined as the quotient between two integer numbers, such that:

N = a/b

where a and b are integers.

Now, the axiom that we need to use is:

"The integers are closed under the multiplication".

this says that if we have two integers, x and y, their product is also an integer:

if x, y ∈ Z ⇒ x*y ∈ Z

So, if now we have two rational numbers:

a/b and c/d

where a, b, c, and d ∈ Z

then the product of those two can be written as:

(a/b)*(c/d) = (a*c)/(b*d)

And by the previous axiom, we know that a*c is an integer and b*d is also an integer, then:

(a*c)/(b*d)

is the quotient between two integers, then this is a rational number.

5 0
3 years ago
What is the value of Tangent (t/2) if Cosine (t) = 4/5 and t is in quadrant IV?
mihalych1998 [28]

Answer:

-1/3

Step-by-step explanation:

Right on edge2020

8 0
3 years ago
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The circumference of Tyler's bike tire is 72 inches. What is the diameter of the tire?​
pantera1 [17]

Answer:

The diameter is 22.92 inches

Step-by-step explanation:

Hello, I can help you with this question

in this case we know the circumference of a circle, and we need to find out the diameter.

let's remember

the radius of a circle can be defined as

radius=\frac{diameter}{2}\\ or\\diameter=2* radius( equation\ 1)\\

also

circumference=2*\pi  *radius(equation2)\\

Step1

replace the value of the circumference of tyler's bike in equation 2  and isolate radius to find radius

72 inches=2*\pi  *radius\\\\radius=\frac{72}{2*\pi  } \radius =11.46\ inches

Step 2

now, replace the value of radius into equation 1 to find diameter

radius=11.46 in

diameter=2* radius( equation\ 1)\\\\diameter=2*11.46\\diameter=22.92

so, the diameter is 22.92 inches

I really hope it helps, have a great day.

5 0
2 years ago
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