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Dennis_Churaev [7]
3 years ago
14

Which of the following are solutions to the equation below?

Mathematics
1 answer:
Bingel [31]3 years ago
5 0
The answer is B or D

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The length of a rectangular map is 15 inches and the perimeter is 50 inches find the width<br>​
lesya692 [45]

Answer: 10

Step-by-step explanation: 15*2=30,

then you take 50 and subtract 30 from it that leaves you with 20

You then take that 20 and divide it by 2 (because there are two sides that have the width) you get 10

7 0
3 years ago
A delivery truck driver charges a fixed base price of $6 for 2 miles.
stiv31 [10]

Answer:

Option B.

Step-by-step explanation:

It is given that a delivery truck driver charges a fixed base price of $6 for 2 miles.

After 2 miles, he charges an additional $2 for every mile and after 6 miles, he charges an additional $4 for every mile.

We need to describe the cost of the delivery truck between 1 mile and 2 miles.

In the given graph x-axis represents the distance in miles and y-axis represents the cost in dollars.

From the given graph it is clear that the value of function is constant between x=1 and x=2.

It means the cost of the delivery truck between 1 mile and 2 miles is constant.

Therefore, the correct option is B.

5 0
3 years ago
Find the derivative using the limit process of f (x) = - 10x
zubka84 [21]

Answer:

\frac{d}{dx} f(x) =-10

General Formulas and Concepts:

<u>Calculus</u>

  • Derivative Notation
  • Definition of a Derivative: \lim_{h \to 0} \frac{f(x+h)-f(x)}{h}

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = -10x

<u>Step 2: Find Derivative</u>

  1. Substitute:                         \frac{d}{dx} f(x)= \lim_{h \to 0} \frac{-10(x + h)-(-10x)}{h}
  2. Distribute -10:                    \frac{d}{dx} f(x)= \lim_{h \to 0} \frac{-10x -10h-(-10x)}{h}
  3. Distribute -1:                      \frac{d}{dx} f(x)= \lim_{h \to 0} \frac{-10x -10h+10x}{h}
  4. Combine like terms:         \frac{d}{dx} f(x)=  \lim_{h \to 0} \frac{-10h}{h}
  5. Divide:                               \frac{d}{dx} f(x)=  \lim_{h \to 0} -10
  6. Evaluate:                           \frac{d}{dx} f(x)=-10
3 0
3 years ago
Given that triangle LMN has side lengths of 20 inches, 10 inches, and 12 inches, prove triangle LMN is a right triangle. Explain
il63 [147K]

Answer:

It is not a right triangle. The hypotenuse is the biggest side so if you apply the Pythagorean Theorem formula it does not work.

Step-by-step explanation:

A² + B² = C² -------> 10² + 12²=20² --------> 100 + 144 = 400 ---> 244 = 400

8 0
3 years ago
How many kilometers is 5.82 x 10⁴ cm?
maw [93]
1km=1000m=10^3m\\\\1m=100cm=10^2cm\\\\1km=10^3\times10^2cm=10^5cm\Rightarrow1cm=10^{-5}km\\\\5.82\times10^4cm=5.82\times10^4\times10^{-5}km=5.82\times10^{4-5}km=5.82\times10^{-1}km\\\\\boxed{5.82\times10^4cm=5.82\times10^{-1}km=0.582km}
3 0
3 years ago
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