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maks197457 [2]
3 years ago
8

A boxer is put on a diet to gain 20 lb in four weeks. The boxer gains 4 1/3 lb the first week and 5 5/6 lb the second week. How

much weight must the boxer gain during the third and fourth weeks in order to gain a total of 20 lb? _____ lb?
Mathematics
1 answer:
V125BC [204]3 years ago
7 0

Answer:

9.8 lbs

Step-by-step explanation:

4 1/3 + 5 5/6= 10 1/6

20 - 10 1/6 = 9.8

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What is the range of the function represented by this graph? the graph of a quadratic function with a minimum value at the point
tatiyna

Answer:

see explanation

Step-by-step explanation:

The minimum is at the vertex (- 3, 1 ), that is y = 1

Since the graph is a minimum then it opens vertically up U

The range of the values of y are therefore

range [ 1, ∞ )

7 0
4 years ago
Write the equation of the parabola with a focus at (-3, -5) and a directrix at y = -7.
lilavasa [31]

Answer:

The directrix is negative so the equation will be

x^2=4ay

x=-3

y=-5

a=x^2/4y

a=(-3)^2 /4*(-5)

a=9/20

x^2=4*(9/20)*y

x^2=9/5y

Step-by-step explanation:

The directrix always determine the equation to use. It is also important to notice the sign(-+).

3 0
3 years ago
What’s is the sum of the series?
STALIN [3.7K]

Answer:

<h2>44</h2>

Step-by-step explanation:

\sum\limits_{k=1}^4(2k^2-4)\to a_k=2k^2-4\\\\for\ k=1:\\\\a_1=2(1)^2-4=2(1)-4=2-4=-2\\\\for\ k=2:\\\\a_2=2(2)^2-4=2(4)-4=8-4=4\\\\for\ k=3:\\\\a_3=2(3)^2-4=2(9)-4=18-4=14\\\\for\ k=4:\\\\a_4=2(4)^2-4=2(16)-4=32-4=28\\\\\sum\limits_{k=1}^4(2k^2-4)=-2+4+14+28=44

7 0
3 years ago
James is playing his favorite game at the arcade. After playing the game 33 times, he has 88 tokens remaining. He initially had
Vlad1618 [11]

Answer:

t(g)=-4g+20

Step-by-step explanation:

Let g be the number of games James plays and t be the number of tokens James has.

We will write our function's formula in slope-intercept form of equation.

y=mx+b, where,

m = Slope of line,

b = y-intercept.

We have been given that initially James has 20 tokens. This means that before playing the games James has 20 tokens or at g equals 0 t equals 20. So our y-intercept will be 20.

We are also told that after playing the game 3 times, he has 8 tokens remaining.

Let us find the slope of line using points (3,8) and (0,20).

m=\frac{y_2-y_1}{x_2-x_1}, where,

m = Slope of line,

y_2-y_1= Difference between two y-coordinates,

x_2-x_1= Difference between x-coordinates of same two y-coordinates.

Upon substituting coordinates of our given points we will get,

m=\frac{8-20}{3-0}

m=\frac{-12}{3}

m=-4

So the slope of our line will be -4.

We can see that number of remaining tokens are dependent on number games James plays, this mean that t is a function of g.

Upon substituting our values in slope-intercept form of equation we will get,

t(g)=-4g+20, where, t(g) represents number of tokens James has left after playing g games.

Therefore, our required function will be t(g)=-4g+20.

4 0
3 years ago
Is 5.64 greater than or less than 5.064
liubo4ka [24]

Answer:

it is greater

Step-by-step explanation:

don't need any explanation just see numbers after the point 6is greater than 0

6 0
3 years ago
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