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2 years ago

Tom can paint twice as fast as Mark. If they complete a job in 4 hours, how long would it have taken Tom working alone?

Mathematics

1 answer:

cupoosta [38]2 years ago

8 0

Answer:

Step-by-step explanation:

2 hours

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If f Superscript negative 1 Baseline (x) = negative one-fifth x, what is f Superscript negative 1 Baseline (x) = one-fifth x?

Artyom0805 [142]

Answer:

a different inverse function

Step-by-step explanation:

If $f^{-1}(x)=-\frac{1}{5}x$ then $f^{-1}(x)=\frac{1}{5}x$ is a different inverse function.

The second (inverse) function is the first reflected over the y-axis.

5 0

2 years ago

Read 2 more answers

Write an equation for the 4th degree polynomial graphed below. Use k if your leading coefficient is positive and −k if your lead

Afina-wow [57]

Ho ho ho, lets get this party started
ok so I'm just really excited to use this stuff that I just learned

so

multiplicites
if a root or zero has an even multilicity, the graph bounces on that root
if the root or zero has an odd multiplicty, the graph goes through that root

so
roots are
-1
2
4
multiplicty is how many times it repeats
2 has even multiplity
we just do 2 is odd and 1 is even so
for roots, r1 and r2, the facotrs would be
(x-r1)(x-r2)
so
(x-(-1))^1(x-2)^2(x-4)
(x+1)(x-2)^2(x-4)
this is a 4th degre equaton
normally, it is goig from top right to top left
it is upside down
theefor it has negative leading coefient

y=-k(x+1)(x-4)(x-2)^2

8 0

2 years ago

Read 2 more answers

What is the length of the y-component of the vector plotted below?

Inessa05 [86]

Answer:

Option A.

Step-by-step explanation:

The vector shown in the figure has components on the x axis and on the y axis.

If each small box on the draw represents a unit, it can be seen that the vector has a component of<u> length equal to 1 on the positive y-axis </u>and a length equal to 4 on the positive x-axis.

Look at the attached image

The sum of these two components results in the vector shown in the figure. Therefore the correct option is option A.

The length is equal to 1

7 0

2 years ago

Ibrahim has two lists of numbers. The mean of the numbers in the first list is p. The mean of the numbers in the second list is

Nata [24]

Step-by-step explanation:

The two conditions that must be satisfied for Ibrahim to be correct are:

1. The range of numbers in each list must also be the same.

2. The number of numbers in both list must also be same.

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2 years ago

In how many ways can you put seven marbles in different colors into two jars? Note that the jars may be empty.

ahrayia [7]

Answer:

128

Step-by-step explanation:

You have two jars and seven marbles.

You do $2^{7}$ .

That is 128

3 0

2 years ago