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Dvinal [7]
3 years ago
7

A sports company conducted a road test of a new model of a geared bike. The test rider cycled (3x - 2) miles on a flat road, (x2

- 5) miles uphill, and (2x + 7) miles downhill. Which simplified expression is equivalent to the total distance, in miles, for which the bike was tested?
Mathematics
2 answers:
nordsb [41]3 years ago
8 0

Answer:

x² + 5x  miles

Step-by-step explanation:

oee [108]3 years ago
5 0

From the way the question is worded, I think there's a list of choices
that's supposed to go along with it, and I'm sad and disappointed that
you decided not to share them.  But heck, ANYbody can pick the right
answer from a list of choices, but it takes a real Brainly to pick the right
answer from a list of no suggestions at all.

           (3x - 2) + (x² - 5) + (2x + 7) =

             3x - 2 + x² - 5 + 2x + 7  =

          (x²) + (3x + 2x) + (-2 - 5 + 7) =

                    <em>x² + 5x  </em>miles

            or   <em>x (x + 5)</em>  miles  (same thing)


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is the following example true or false? if false give a counterexample. The sum of two rational numbers is always rational the s
Lina20 [59]

Answer:

two irrational numbers is always irrational

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A line includes the points 2, 10 and 0, 2 what is its equation in slope intercept form ​
IRINA_888 [86]

Answer:

y = -4x + 2

Step-by-step explanation:

y = mx + b ( slope-intercept)

1. Find Slope:

\frac{y^2 - y^1}{x^2 - x^1}

Lets name 2 as y2 and 10 as y1. And 0 as x2 and 2 as x1.

\frac{2-10}{0-2}  =  \frac{-8}{2} = -4

m/slope = -4

2. Find y-intercept:

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2 = -4(0) + b

= 2 = b

Y-intercept/b = 2

3. Put into slope-intercept form:

y = mx + b

= y = -4x + 2

Hope that helps! :D

4 0
3 years ago
A teacher is comparing the quarter grades between two of her classes. She takes a random sample of 8 students from each class an
Alja [10]
The mean for class A is 82
8 0
3 years ago
16x⁴-4x²-4x-1 and 8x³-1<br>HCF​
IgorLugansk [536]

Answer:

We have expanded formula of (-4x-1)² = a²+2ab+b².

So, we write the formula in square form as (a+b)².

Since we have a²-b² in step 4. We further write this as (a+b)(a-b). This is the factor formula of a²-b².

As we had two terms in place of in (a+b)(a-b), we multiply the term 'b' with '+' and '-' sign respectively.  

Write the second expression given in the question.

Write the terms in the form of cube.

Write the factor formula of a³-b³) in the form of (a-b)(a²+ab+b²).

Write the H.C.F. (Highest Common Factor) of the given expressions by analysing the factors you generated in each expressions. Here, (4x²+2x+1) are the common factors.

4 0
2 years ago
14 5 18 24 15 28 34 __
Volgvan
This sequence seems to apply -9, +13, +6 repeatedly.
So after the 34, the -9 has to be applied. The next number would be 25.
5 0
3 years ago
Read 2 more answers
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