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3 years ago

Roger said that there are two routes from his home to his work. His usual route is 28.3 miles

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

6 0

Answer:

The answer is B. 8 miles

Step-by-step explanation:

First you take the original route length and subtract the shortcut route length from that. Next, since the problem has the key word, Approximately, we would find the closest answer to our difference.

28.3 - 19.7 = 8.6

8.6 = 8

8 miles

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Sindrei [870]

Answer:

3/2

Step-by-step explanation:

Because the problem tells you that the two triangles are similar, the value of a/b would be equivalent for both triangles. The fact that they are right triangles also indicates which sides are which in case the image was not drawn to scale. A is proportional to 2.1 and b is proportional to 1.4. So a/b= 2.1/1.4. This can reduce itself to 3/2 because both are divisible by .7

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3 years ago

5. A pathway of uniform width is going to be built on two adjacent sides of a

Illusion [34]

Answer:

Step-by-step explanation:832

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3 years ago

Define a variable. Write and solve each equation.

ella [17]

The answer is x = 6

Let us first define x to be the number of hours of riding lessons she can take.

X = Hours of lessons

Now, she has $200, she needs to pay $20 for grooming supplies, and the lessons cost $30 an hour. We to find the maximum amount of hours of lessons she can take, so in other words, we want to make her broke. To do this, we first convert the words into an equation:

200 - 20 - 30x = 0

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3 years ago

F(x)=9x^3+2x^2−5x+4 and g(x)=5x^3−7x+4.

Gennadij [26K]

$f(x)-g(x) = 2x(2x^2+x+1)$

Further explanation:

Given functions are:

$f(x)=9x^3+2x^2-5x+4\\g(x)=5x^3-7x+4$

In order to find f(x)−g(x), g(x) will be subtracted from f(x)

$f(x) -g(x) = 9x^3+2x^2-5x+4 - (5x^3-7x+4)\\= 9x^3+2x^2-5x+4-5x^3+7x-4\\= 9x^3-5x^3+2x^2-5x+7x+4-4\\=4x^3+2x^2+2x\\=2x(2x^2+x+1)$

Hence,

$f(x)-g(x) = 2x(2x^2+x+1)$

Keywords: Operations on functions, Difference of functions

Learn more about functions at:

#LearnwithBrainly

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4 years ago

Please find x in the following problem.

Arada [10]

Check the picture below.

so we have two parallel lines, notice, the 115° are corresponding angles and thus equal, the 65° and 55° angles are linear angles to 115° and 125° respectively.

that leaves us with a triangle with 65° and 55°, and since all interior angles in a triangle sum up to 180°, then the last angle must be 60°, which has a twin vertical angle across the junction.

since a full revolution or a full circle go-around is 360°, the other two twin vertical angles next to the green 60° angles must be 360° - 60° - 60° = 240°, and since they're twins, each takes half of 240°.

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3 years ago