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4 years ago

What is the improper fraction of 4 1/4

Mathematics

2 answers:

Zigmanuir [339]4 years ago

7 0

4x4=16 16 + 1= 17 and then put 4 as your denominator so 17/4

Naddik [55]4 years ago

6 0

It would be 17/4 hope it helps

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For a certain automobile,

emmasim [6.3K]

Answer:

The answer is

a) 2,128 miles per gallon at 40,36 miles per hour

b) 1,388 miles per gallon at 60 miles per hour

Step-by-step explanation:

Let's find the extreme points of M(x) for 30≤x≤60. M(x) simplified by dividing to 7.8.

$M(x) = -1,92.10^-3x^2+0,155x-1$

To find extreme points we find tangent of M(x) and equal it to 0.

$M'(x) = -3,84.10^-3x+0,155=0$

therefore x= $\frac{-0,155}{-3,84.10^-^3} = 40,36$

This divides our x to 2 different range 30≤x≤40,36 and 40,36≤x≤60

Now we pick a number and investigate from the ranges

30≤x≤40,36 → x = 35 → M'(35) = 0,0206 which is > 0 and that means M is increasing

40,36≤x≤60 → x = 45 → M'(45) = -0,0178 which is < 0 and that means M is decreasing

Next let's look at critical points

x M(x) Before After Decision

30 1,922 - ↑ Local Minimum Point

40,36 2,128 ↑ ↓ Local Maximum Point

60 1,388 ↓ - Local Minimum Point

As we can see (30, 1,922) and (60, 1,388) are local minimum points and (40,36 , 2,128) is the local maximum point.

Since (60 , 1,388) is the lowest local minimum point it is the absolute minimum point and (40,36 , 2,128) is the absolute maximum point.

6 0

3 years ago

If 6x+3y=−1 and 5x+y=8 are true equations, what would be the value of −x−2y?

bogdanovich [222]

Answer: 9

x = 2.778

y = -5.889

-x -2y

= -2.778 - 2(-5.889)

= 9

5 0

3 years ago

Mike wants to put a rope around a rectangular plot of flowers he just planted.

9966 [12]

B. The perimeter of the plot of flowers

The perimeter measures the distance around all the edges, which is how much rope he'd need

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3 years ago

A class of 33

pogonyaev

Answer:

42.3% or 11/26

Step-by-step explanation:

IN order to calculate the percentage of people that voted for Candidate A you just need to add up the number of votes for that candidate and then multiply it by 100 and divided by the total votes.

There were 26 voters, since there were 7 that didn´t vote for anyone, so we have that 11 voted for Candidate A:

$\frac{11}{x} =\frac{26}{100}\\ x= \frac{11*100}{26}\\ x=42.30$

So the percentage of voters that voted for candidate A was 42.3 percent.

6 0

4 years ago

Read 2 more answers

a solid is composed of a cylinder with hemisherical ends. If the length of the whole solid is 108 cm and the diameter of the cyl

Lerok [7]

First work out the surface area of the solid

Area of cylindrical part:-

length of this part = 108 - 2*18 = 72 so its area

= 2 * pi * r * 72

= 2 *pi* 18 * 72 = 8143.01 cm^2

Area of the 2 hemispheres = 4 pi * 18^2 = 4071.50 cm^2

Total surface area of the solid = 12,214.51 cm^2

Cost of polishing = 12,214.51 * 7 = 85,501.58 paise

5 0

3 years ago